Entries |
Document | Title | Date |
20080211963 | Equipment For Audio-Video Processing System - The invention provides a processing system, comprising a video signal processing unit for processing a video signal, the video signal processing entailing a video signal processing delay, and video delay control for controlling said video signal processing unit in dependence on a maximum allowed value for the video signal processing delay. The invention also provides an audio-video signal source, comprising an output for sending a video signal to a video signal processing unit, and an output for communicating to the video signal processing unit a maximum allowed value for a video signal processing delay entailed by video signal processing in the video signal processing unit. The invention further provides an audio signal processing unit, comprising an audio signal processing unit, said audio signal processing entailing an audio signal processing delay not exceeding a maximum audio delay, and an output for communicating to the video signal processing unit a maximum allowed value for a video signal processing delay entailed by video signal processing in the video signal processing unit, the maximum allowed value for the video signal processing delay depending on the maximum audio delay. | 09-04-2008 |
20080266452 | MULTI-MEDIA DEVICE - A multi-media device ( | 10-30-2008 |
20080273116 | Method of Receiving a Multimedia Signal Comprising Audio and Video Frames - The present invention relates to a method of receiving a multimedia signal in a communication apparatus, said multimedia signal comprising at least a sequence of video frames (VF) and a sequence of audio frames (AF) associated therewith. Said method comprises the steps of: processing ( | 11-06-2008 |
20090040379 | METHOD AND APPARATUS FOR INTERDEPENDENTLY CONTROLLING AUDIO/VIDEO SIGNALS - A signal control method of analyzing audio and video signals and interdependently enhancing each audio and video signal with regard to a multimedia input sequence including audio and video signal components are provided. The method of controlling audio and video signals includes: analyzing characteristics of components of the audio and video signals; interdependently modifying the audio signal and/or video signal according to the analyzed characteristics of components of the audio and video signals; and synchronizing the modified audio and video signals. | 02-12-2009 |
20090073316 | LIP-SYNC CORRECTING DEVICE AND LIP-SYNC CORRECTING METHOD - A video signal and an audio signal are transmitted from a source device ( | 03-19-2009 |
20090091655 | SYNCHRONIZING REMOTE AUDIO WITH FIXED VIDEO - A multimedia device ( | 04-09-2009 |
20090128698 | AUDIO SYNCHRONIZER FOR DIGITAL TELEVISION BROADCAST - An audio synchronizer for a digital television broadcast has a clock generation section that generates a fundamental clock pulse by demultiplying a clock pulse of a given frequency, which is generated by multiplying an input clock pulse, by a predetermined demultiplication ratio; a comparison section that compares reference time information included in a broadcast wave with time information counted by means of the fundamental clock pulse generated by the clock generation section; a control section that commands the clock generation section to adjust a frequency of the fundamental clock pulse in accordance with information about a time difference acquired from the comparison section; a sampling clock generation section that generates a sampling clock pulse on the basis of the fundamental clock pulse; and a sampling rate conversion section that performs sampling conversion so as to synchronize the audio sampling clock pulse and audio data included in the broadcast wave with a sampling clock pulse of an audio DAC. The clock generation section inserts a clock pulse having a different demultiplication ratio at intervals equivalent of a predetermined number of clock pulses in accordance with a command from the control section. | 05-21-2009 |
20090135300 | AUDIO PROCESSING APPARATUS, VIDEO PROCESSING APPARATUS, AND METHOD FOR CONTROLLING THE SAME - A video audio system includes an audio processing apparatus capable of processing audio signals input from a plurality of input sources and a video processing apparatus capable of displaying a video image based on a video signal input from a selected input source. The video processing apparatus executes image processing based on the selected input source type notified by the audio processing apparatus, and transmits delay time information required for the image processing. The audio processing apparatus delays an audio signal based on the delay time information transmitted from the video processing apparatus. | 05-28-2009 |
20090167943 | Apparatus and Method for Synchronizing Video and Audio Data - Techniques for synchronizing audio and video data being transferred from one device to another device are disclosed. According to one aspect of the present invention, a periodic signal is generated in a host device (e.g., a personal computer) and transferred to a thin device (e.g., a PC camera) via an interface (e.g., a USB). The periodic signal is used to adjust local clocks in the thin device to generate audio and video data. As a result, the audio and video data is synchronized. According to another aspect of the present invention, an error detection unit and a correction unit are provided to ensure that there is no error in the periodic signal being transferred from the host device. If an error is detected, a patch to the signal is generated. | 07-02-2009 |
20090251600 | AV Timing Measurement for MPEG Type Television - An invention for measuring, maintaining and correcting synchronization between signals which suffer varying relative delays during transmission and/or storage is shown. The preferred embodiment of the invention finds particular use in measuring the relative delay between multiple audio signals and an associated video signal of a television type program which is compressed via MPEG or other compression for a transmission and/or storage system. The invention marks the video signal at a time when a particular event in the associated audio occurs. The mark is carried with the video throughout the video processing. After processing the same event in the audio is again identified, the mark in the video identified, the two being compared to determine the timing difference therebetween. | 10-08-2009 |
20090268091 | RECEIVER CAPABLE OF GENERATING AUDIO REFERENCE CLOCK - A receiver for use in a system for transmission from a transmitter to a receiver is provided, the receiver including: a first frequency divider for outputting a first signal by dividing a signal with a frequency corresponding to a pixel clock or an integral multiple thereof by a reciprocal of an integral multiple of a first natural number, the integral multiple of the first natural number being greater than or equal to 1; and a cycle control portion for outputting a second signal having first and second cycles included within a cycle of the first signal by controlling a cycle of the pixel clock, the first cycle corresponding to a quotient which, along with a remainder, results from the integral multiple of the first natural number divided by a third natural number equal to or different from the second natural number, the number of first cycles included within the cycle of the first signal corresponding to a first value for the third natural number minus the remainder, the second cycle corresponding to a second value for the quotient plus 1, the number of second cycles included within the cycle of the first signal corresponding to the remainder. | 10-29-2009 |
20090273712 | SYSTEM AND METHOD FOR REAL-TIME SYNCHRONIZATION OF A VIDEO RESOURCE AND DIFFERENT AUDIO RESOURCES - An audio-visual system and method employs a dual-control interface for directly controlling the video speed of an underlying video resource for video output, and for switching among any of a plurality of audio resources at different points in time independently of the video output. The video speed control allows a user to adjust the running speed of the video track to match or synchronize with the tempo or duration of a selected audio track at any point in time. The video speed and audio selection commands can be recorded and distributed on disk along with the audio-video application and underlying video and audio tracks. It can thus be operated for play on PCs or game consoles, or used as media for play on wireless mobile devices or Internet browsers. The audio-visual system is particularly suitable for making personally editable music video and/or playing video games, audience participation (karaoke) games, and the like. | 11-05-2009 |
20090290064 | AV System - AV content is input and output in an AV system. In the AV system, a plurality of AV devices process a signal of the content to reproduce the content. A source device broadcasts the content to each of the AV devices. In each of the AV devices, a reproduction unit receives the content broadcast by the source device and performs reproduction processing on the received content. A communication unit communicates reproduction processing time information with another AV device, the reproduction processing time information indicating a time required for the reproduction processing of the content. A delay unit delays a time to reproduce the content, such that the delay unit delays reproduction of the content in accordance with an AV device having a latest reproduction timing based on the reproduction processing time information. | 11-26-2009 |
20090295992 | Method and Apparatus for Audio and Video Synchronization Timestamp Rollover Correction - There are provided methods and apparatus for audio and video synchronization timestamp rollover correction. A synchronization apparatus includes a synchronizer for providing synchronization information for synchronizing a video stream with an audio stream during any point in a broadcast thereof irrespective of whether the video stream and the audio stream have different rollover points for their respective timestamps. The synchronization information is encoded for an out of band transmission with respect to the broadcast of the audio and video streams. | 12-03-2009 |
20100053430 | Delay Matching in Audio/Video Systems - An audio/video system comprises an audio signal processing path having an audio path delay and a video signal processing path having a video path delay. The audio path delay may be different from the video path delay. The audio path delay and/or the video path delay may change, for example because of replacement of a component within the audio signal processing path or the video signal processing path. Delay matching (synchronization) in the audio/video system comprises adjusting the audio path delay to be substantially equal to the video path delay. Matching the audio path delay to the video path delay generally includes adding delay to the signal processing path with the lesser delay. | 03-04-2010 |
20100289953 | SYSTEM AND METHOD FOR PROCESSING MULTIMEDIA DATA USING AN AUDIO-VIDEO LINK - A multimedia processor includes an audio processor configured to process an audio input signal to generate an audio output signal and an assistant signal, and a video processor coupled with the audio processor and configured to process video input signal and the assistant signal to generate a video output signal simultaneously according to the video input signal and the assistant signal. Provided with the assistant signal, the video processor acquires more video processing-related information for rendering video content in a more realistic manner. Mal-motion detection can thus be prevented, and video quality can be improved. | 11-18-2010 |
20100289954 | PROVIDING AUDIO SIGNALS USING A NETWORK BACK-CHANNEL - A method for providing audio portions of broadcast television signals is disclosed. A television signal is buffered by a multimedia client. In response to a user request, audio data may be obtained from a service provider and sent back to the multimedia client using a network back-channel. The obtained audio data may be synchronized with a video portion of the television signal and output to an audio device, while the television signal is output to a display device. | 11-18-2010 |
20100302441 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing apparatus according to the present invention includes: a transformation unit configured to perform an image data transformation processing to transform a shape of image data; a first determination unit configured to determine an output position of audio data in association with the image data based on transformation information regarding the image data transformation processing performed by the transformation unit; and a configuration unit configured to construct a sound field based on the output position determined by the first determination unit. | 12-02-2010 |
20110013084 | METHOD AND APPARATUS FOR SYNCHRONIZING AUDIO AND VIDEO STREAMS - Some embodiments of the invention provide a method for synchronizing an audio stream with a video stream. This method involves searching in the audio stream for audio data having values that match a distinct set of audio data values and synchronizing the audio stream with the video stream based on the search. In some embodiments, the distinct set of audio data values is defined by a predetermined distinct tone. In other embodiments, the distinct set of audio data values is defined by audio data contained in the video stream. | 01-20-2011 |
20110043694 | TRANSMITTING APPARATUS, RECEIVING APPARATUS AND CONTENTS REPRODUCING SYSTEM - A transmitting apparatus connects to a receiving apparatus via a transmission medium, and transmits contents based on an audio transmitting clock. The transmitting apparatus includes a frequency deviation receiving unit and a clock varying unit. The frequency deviation receiving unit receives, from the receiving apparatus, information indicating a frequency deviation between the audio transmitting clock and an audio reproducing clock. The clock varying unit varies a transmitting-side system clock based on the information of the frequency deviation obtained from the receiving apparatus. The receiving apparatus includes an audio reproducing clock generating unit. The receiving apparatus buffers the audio data by the audio transmitting clock, and transfers the audio data from the buffer to a DAC in accordance with the audio reproducing clock, so as to eliminate the audio quality deteriorating factor caused by a receiving circuit of the transmitting apparatus and the receiving apparatus. Further, the receiving apparatus detects the frequency deviation between the audio transmitting clock and the audio reproducing clock and transmits its information to the transmitting apparatus so that the buffer does not cause an overflow and an underflow. | 02-24-2011 |
20110102674 | APPARATUS AND METHOD FOR ADJUSTING THE COGNITIVE COMPLEXITY OF AN AUDIOVISUAL CONTENT TO A VIEWER ATTENTION LEVEL - To allow viewer to adapt audiovisual content to their attention level, the audiovisual signal processing arrangement ( | 05-05-2011 |
20110181776 | DELAY MATCHING IN AUDIO/VIDEO SYSTEMS - An audio/video system comprises an audio signal processing path having an audio path delay and a video signal processing path having a video path delay. The audio path delay may be different from the video path delay. The audio path delay and/or the video path delay may change, for example because of replacement of a component within the audio signal processing path or the video signal processing path. Delay matching (synchronization) in the audio/video system comprises adjusting the audio path delay to be substantially equal to the video path delay. Matching the audio path delay to the video path delay generally includes adding delay to the signal processing path with the lesser delay. | 07-28-2011 |
20110221960 | SYSTEM AND METHOD FOR DYNAMIC POST-PROCESSING ON A MOBILE DEVICE - A method of operating a multimedia player is provided. The method includes decoding an audio stream of the multimedia player and rendering the decoded audio stream in the multimedia player, updating the media time of the media player with an audio timestamp of the rendered audio stream as the audio stream is rendered, and, while decoding and rendering the audio stream, decoding a video stream and checking the media clock to determine if a video timestamp of the decoded video stream is within a threshold of the media clock time, and if not then adapting post-processing of the video stream to decrease video stream post-processing time. | 09-15-2011 |
20110234902 | Synchronization of audio and video streams - A method includes synchronizing audio and video streams including applying a time-stamp to a block of a audio buffer in an audio path; applying a time-stamp to a block of a video buffer in a video path; reading the block from the audio buffer; reading the block from the video buffer; and aligning the audio path and the video path by introducing a variable delay to one member selected from the group consisting of the audio path or the video path to substantially equalize the end-to-end delay of both the audio path and the video path. An apparatus includes a digital to analog convertor for synchronizing audio and video including an audio buffer in an audio path, each block of the audio buffer having an audio time-stamp; and a video buffer in a video path, each block of the video buffer having a video time-stamp, wherein the audio path and the video path are aligned by introducing a variable delay to one member selected from the group consisting of the audio path or the video path to substantially equalize the end-to-end delay of both the audio path and the video path. | 09-29-2011 |
20110261257 | Feature Optimization and Reliability for Audio and Video Signature Generation and Detection - Features are extracted from video and audio content that have a known temporal relationship with one another. The extracted features are used to generate video and audio signatures, which are assembled with an indication of the temporal relationship into a synchronization signature construct. the construct may be used to calculate synchronization errors between video and audio content received at a remote destination. Measures of confidence are generated at the remote destination to optimize processing and to provide an indication of reliability of the calculated synchronization error. | 10-27-2011 |
20120033134 | SYSTEM AND METHOD FOR IN-BAND A/V TIMING MEASUREMENT OF SERIAL DIGITAL VIDEO SIGNALS - A system and method for characterizing the relative offset in time between audio and video signals and enables the receiver of the audio and video signals to resynchronize the audio and video signals. Signal characterization data is dynamically captured and encoded into frames of video and audio data that is output by a television origination facility. The signal characterization data is extracted by the receiver and signal characterization data is recomputed for the received frames. The extracted signal characterization data is compared with the recomputed signal characterization data to compute the relative offset in time between the video and one or more audio signals for a frame. The receiver may then resynchronize the video and audio signals using the computed relative offset. | 02-09-2012 |
20120081604 | ELECTRONIC APPARATUS - An electronic device, where if audio data for transmitting to an external apparatus is changed from first audio data corresponding to an encoded format to non-encoded second audio data, the second audio data is not transmitted to the external apparatus until additional data for transmitting to the external apparatus is changed from first additional data to second additional data. | 04-05-2012 |
20120081605 | PROCESSING AN AUDIO INPUT SIGNAL TO PRODUCE A PROCESSED AUDIO OUTPUT SIGNAL - An audio input signal is processed to produce a processed audio output signal. An audio input signal is received as an original signal. The audio input signal is dynamically filtered to produce a first stage signal consisting of a selected frequency band of the input signal. Gain applied to the first stage signal is dynamically controlled in response to a control signal to produce a second stage signal. The control signal is derived from the first stage signal. Processing the original signal in combination with the second stage signal to produce a processed audio output signal. Processing the original signal in combination with the second stage signal and the first stage signal to produce a processed audio output signal. | 04-05-2012 |
20120086855 | VIDEO CONTENT GENERATION SYSTEM, VIDEO CONTENT GENERATION DEVICE, AND STORAGE MEDIA - A video content generation device generates video data synchronized with music data based on motion data, representing a motion graph including nodes, edges, and weights, and metadata indicating a synchronization probability per each node between the motion graph and a musical tune. A music data storage unit stores the predetermined amount of music data and their musical characteristics in connection with the predetermined number of beats, in a reproduction order, retrieved from the musical tune. An optimum path search unit searches an optimum path connecting between nodes, each of which is selected per each beat with a high synchronization probability, on the motion graph with motion characteristics matching with musical characteristics based on the predetermined amount of music data. Video data synchronized with music data is generated based on synchronization information for correlating motion data to music data along with the optimum path. | 04-12-2012 |
20120120314 | LIP SYNC ERROR DETECTION AND CORRECTION - A method of managing lip synchronization error in a multimedia content delivery network includes identifying a video packet and an audio packet associated with the video packet and determining a synchronization offset between the audio and video packets at a first monitoring point in the network. The audio and video packets are then detected at a second monitoring point in the network and a second synchronization offset is determined. When a delta between the first synchronization offset and the second synchronization offset exceeds a threshold, lip synchronization error information may be automatically recorded and/or reported to a service provider and corrective action may be taken if potential sources of the lip synchronization error are within the domain of the service provider. The video packet may be identified by a timestamp within the packet and the audio packet may be identified by audio data within the audio packet. | 05-17-2012 |
20120127365 | Delay and Lip Sync Tracker - A delay tracker utilizes a special code on the tracked signal in order to recognize such signal and ascertain any delays associated therewith. | 05-24-2012 |
20120133829 | VIDEO DISPLAY APPARATUS AND VIDEO DISPLAY METHOD, AUDIO REPRODUCTION APPARATUS AND AUDIO REPRODUCTION METHOD, AND VIDEO/AUDIO SYNCHRONOUS CONTROL SYSTEM - According to one embodiment, a video display apparatus includes a generation module and a transmitting module. The generation module is configured to generate, when an operation mode change that changes the time required for video signal processing is requested, a device control signal in which information indicating the time required for video signal processing in the requested operation mode is written. The transmitting module is configured to transmit the device control signal generated by the generation module via a transmission line of the device control signal to cause an audio reproduction apparatus to set a delay amount of audio reproduction. | 05-31-2012 |
20120147266 | SHARED-PLL AUDIO CLOCK RECOVERY IN MULTIMEDIA INTERFACES - A bit stream includes playback data having an associated clock rate and a variable reference clock that is synchronized to the bit stream. A playback clock recovery signal and a data recovery signal are generated in response to the received reference clock. A playback clock frequency signal is generated in response to the playback clock recovery signal. A recovered playback clock is generated by using a divide by M divider, wherein the value of M used by the divide by M divider is determined in response to a programmable multiple of the clock rate associated with the playback information. | 06-14-2012 |
20120162512 | Systems and Methods for Transmitting Media Content via Digital Radio Broadcast Transmission for Synchronized Rendering by a Receiver - Systems, methods, and processor readable media are disclosed for encoding and transmitting first media content and second media content using a digital radio broadcast system, such that the second media content can be rendered in synchronization with the first media content by a digital radio broadcast receiver. The disclosed systems, methods, and processor-readable media determine when a receiver will render audio and data content that is transmitted at a given time by the digital radio broadcast transmitter, and adjust the media content accordingly to provide synchronized rendering. In exemplary embodiments, these adjustments can be provided by: 1) inserting timing instructions specifying playback time in the secondary content based on calculated delays; or 2) controlling the timing of sending the primary or secondary content to the transmitter so that it will be rendered in synchronization by the receiver. | 06-28-2012 |
20120169930 | Audio and Video Clock Synchronization - Provided herein is a method for synchronizing audio and video clock signals in a system. The method includes comparing, within a comparison module, a system video signal with the determined mathematical relationship to produce an adjustment signal. A system video reference signal is updated with the adjustment signal to produce an updated intermediate signal. | 07-05-2012 |
20120200773 | APPARATUS, SYSTEMS AND METHODS FOR SYNCHRONIZATION OF A VIDEO STREAM AND AN AUDIO STREAM - Systems and methods are operable to synchronize presentation between video streams and separately received audio streams. An exemplary embodiment receives a first media content stream at a media device, wherein the first media content stream comprises at least a video stream portion; receives a second media content stream at the media device, wherein the second media content stream comprises at least an audio stream portion; delays the audio stream portion of the second media content stream by a duration corresponding to at least one synchronization time delay; communicates the video stream portion of the first media content stream to a visual display device; and communicates the delayed audio stream portion of the second media content stream to an audio presentation device, wherein a visual scene of the video stream portion of the first media content stream is substantially synchronized with sounds of the audio stream portion of the second media content stream. | 08-09-2012 |
20120200774 | AUDIO AND VIDEO DISTRIBUTION SYSTEM WITH LATENCY DELAY COMPENSATOR - An audio/video distribution system and method for providing media to an end-user. The media has an audio component and a video component. At least the audio component is received and played at an end-user device. The system includes a controller, a display device and a synchronization tool. The controller generates a video signal and an audio signal. The display device is coupled to the controller for receiving and displaying the video signal. The synchronization tool is implemented at the end-user device and is configured to allow a user to synchronize playback of the audio signal at the end-user device to the display of the video signal at the display. | 08-09-2012 |
20120206650 | METHOD FOR SYNCHRONIZED PLAYBACK OF WIRELESS AUDIO AND VIDEO AND PLAYBACK SYSTEM USING THE SAME - A method for synchronized playback of wireless audio and video is applicable to a playback system. The method for synchronized playback includes steps of receiving and processing multimedia data by the playback system, in which the multimedia data includes video data and audio data; wirelessly transmitting the audio data to a loudspeaker and meanwhile holding the video data for a threshold time; and finishing the transmission of the audio data when the threshold time is reached, so that the video data and the corresponding audio data are synchronously played. The method for synchronized playback can control the delay caused by the wireless audio transmission, thus achieving the objective of synchronously playing the audio and video data. | 08-16-2012 |
20120224100 | MULTIMEDIA APPARATUS AND SYNCHRONIZATION METHOD THEREOF - A multimedia apparatus and a synchronization method thereof are provided. The multimedia apparatus includes a video output unit which outputs a video, and a control unit which transmits an audio signal to the external device through the communication module and operates the video output unit to display a video corresponding to the audio signal by delaying the video based on delay information received from the external device through the communication module. | 09-06-2012 |
20120274850 | MULTI-LINGUAL AUDIO STREAMING - Digital video data and digital multiple-audio data are extracted from a source, using a hardware processor in a content source device within a premises. The extracted digital video data is processed for display on a main display device in the premises; and the extracted digital multiple-audio data is processed into a primary soundtrack in a primary language, to be listened to within the premises in synchronization with the displayed extracted digital video data. The primary soundtrack corresponds to the displayed extracted digital video data, in the primary language. The extracted digital multiple-audio data is processed into at least one secondary audio asset, different than the primary soundtrack; and the at least one secondary audio asset is transmitted to a personal media device within the premises, for apprehension by a user of the personal media device in synchronization with the displayed extracted digital video data. | 11-01-2012 |
20120307147 | INTERLEAVING AUDIO AND VIDEO PACKETS - A network device receives multiple protocol data units (PDUs), or packets, and initiates aggregation of an intended number of the packets to form a transmission block. During the aggregation process, the device receives a priority PDU, or packet, and in response to receiving the priority PDU, terminates the aggregation process, either permanently or temporarily, even though the number of packets aggregated prior to receiving the priority packet is less than the number of packets intended to be included in the transmission block. The device releases the priority packet for transmission out of turn, ahead of the already aggregated packets. The priority packet can be released individually, with the aggregation being resumed after release of the priority packet, or the priority packet can be pre-pended to the already aggregated block of packets and the entire block released with a priority assigned according to the priority of the priority packet. | 12-06-2012 |
20120307148 | METHOD AND DEVICE FOR DEMULTIPLEXING AUDIO & VIDEO DATA OF MULTIMEDIA FILE - A method and device for demultiplexing audio & video data in a multimedia file are provided. The method includes: setting and updating a maximum synchronization time point according to a preset maximum synchronization time; selecting an output data frame according to a comparison result between the decoding time stamp of the current data frame for each data frame channel in the multimedia file and the maximum synchronization time point in combination with the order of byte offset location values of the current data frames for each data frame channel; and fetching the output data frame via searching a position in the multimedia file according to the byte offset location value of the selected output data frame to obtain an original stream audio and video frame queue. | 12-06-2012 |
20120307149 | Methods, Systems, and Products for Alternate Audio Sources - Methods, systems, and products are disclosed for retrieving audio signals. A video signal is received that is associated with a content identifier and an alternate audio tag. In response to the alternate audio tag, a query is made for an alternate audio source that corresponds to the content identifier. A query result is received that identifies at least one alternate audio signal that corresponds to the content identifier and that is separately available from the video signal. | 12-06-2012 |
20120314131 | METHOD AND APPARATUS FOR REMOTE CAPTURE OF AUDIO IN A HANDHELD DEVICE - Some embodiments herein include at least one of systems, methods, and devices for remote audio capture using a hand-held device. In some embodiments, the device captures, stores, and transmits audio to another device via wireless technologies. In some embodiments, the device may be used either as a hand-held microphone or as a lavaliere microphone. | 12-13-2012 |
20120327300 | ADAPTIVE MEDIA DELAY MATCHING - A system may be provided for synchronizing a first media stream with a second media stream. A first receiver in the system may receive the first media stream over a network. A second receiver in the system may receive the second media stream over the network. The second receiver may determine an identity of a content delay matching stream that indicates the amount of processing delay introduced in the first media stream by a processing component of the first receiver or transmitter. The second receiver may subscribe to the identified content delay matching stream. The second receiver may receive the content delay matching stream over the network and determine the processing delay from the content delay matching stream. The receiver may cause the second media stream to be delayed in accordance with the processing delay in the first media stream such that the first and second media streams are synchronized. | 12-27-2012 |
20130002953 | TRANSMISSION APPARATUS, RECEIVING APPARATUS, TRANSMISSION METHOD, AND RECEIVING METHOD - A transmission apparatus according to the present invention includes: an audio input unit configured to obtain audio data of 32-bit precision and to add additional information to the audio data, to generate output audio data including the audio data of 32-bit precision and the additional information, the additional information indicating characteristics of the audio data obtained; and a video-audio synthesizing unit configured to: add packet type information to the output audio data generated by the audio input unit, to generate at least one audio sample packet; and multiplex the at least one audio sample packet into a horizontal blanking interval of video data, the packet type information indicating that the output audio data includes audio data of 32-bit precision. | 01-03-2013 |
20130021525 | SYSTEM AND METHOD OF IMPLEMENTING SYNCHRONIZED AUDIO AND VIDEO STREAMING - A server comprises a processing unit configured to interlace audio data packets with video data to form an interlaced audio/video data file having an approximately uniform audio time interval between consecutive audio data packets in the interlaced audio/video data file. The server also comprises an interrupt timer configured to provide periodic interrupt signals. The processing unit is configured to synchronize the start of transmission of each instance of the audio data packets and the video data packets with the periodic interrupt signals from the interrupt timer. | 01-24-2013 |
20130038792 | SYSTEM AND METHOD FOR SYNCHRONIZATION OF HAPTIC DATA AND MEDIA DATA - Embodiments of the present invention relate to computer systems for transmitting or receiving and playing a plurality of data streams, where at least one of the data streams includes video data packets and/or audio data packets and at least one other data stream includes further data packets that are synchronized with the video and/or audio data packets. In particular embodiments, the further data stream includes haptic data packets that include haptic command data generated in real time with the video and/or audio data streams, where the haptic command data is provided to a haptic output device configured to replicate or approximate sensations through the output of one or more mechanical forces in synchronization with the playing of video and/or audio from the video and/or audio data streams. | 02-14-2013 |
20130044260 | SCRIPT-BASED VIDEO RENDERING - Systems and methods are provided for cross-platform rendering of video content on a user-computing platform that is one type of a plurality of different user-computing platform types. A script is transmitted to the user-computing platform and is interpreted by an application program compiled to operate on any one of the plurality of user-computing platform types. The script is configured to cause the script to be interpreted by the application program operating on the user-computing platform to: render the video data by displaying frame images which make up the video data; playback the associated audio data; ascertain an audio playback time reference associated with the playback of the associated audio data; and directly synchronize the displaying of the frame images with the playback of the associated audio data based on the audio playback time reference. | 02-21-2013 |
20130057761 | AUDIO VIDEO OFFSET DETECTOR - Systems and methods of measuring a temporal offset between audio content and video content that employ audio fingerprints from an audio signal in the audio content, and video fingerprints from video frames in the video content. The systems obtain reference audio and video fingerprints prior to transmission of video over a media channel, and obtain target audio and video fingerprints subsequent to transmission of the video over the media channel. Each fingerprint has an associated time stamp. Using the reference and target audio fingerprints and their associated time stamps, the systems determine an audio time stamp offset. Using the reference and target video fingerprints and their associated time stamps, the systems determine a video time stamp offset. Using the audio and video time stamp offsets, the systems determine a temporal offset between the video content and the audio content introduced by the media channel. | 03-07-2013 |
20130063658 | VADIO-VIDEO RADIO - Embodiments of the invention relate to a system, method, computer product, computer system and device for providing a live broadcast, the method includes receiving a first audio content; determining a first video content that matches the first audio content; matching the first video content with the first audio content in real time, forming matched first audio/video content; and providing the matched first audio/video content in the live broadcast. The method further includes receiving a second audio content; determining a second video content that matches the second audio content; matching the second video content with the second audio content in real time, forming matched second audio/video content; and providing the matched second audio/video content in the live broadcast. | 03-14-2013 |
20130088641 | METHOD AND SYSTEM FOR WIRELESS COMMUNICATION OF AUDIO IN WIRELESS NETWORKS - A method and system for audio transmission in a wireless communication system which transmits digital video and digital audio in High-Definition Multimedia Interface (HDMI) format. Position information of audio packets within the HDMI frame is obtained. Digital audio information including the position information is transmitted from a data source device to a data sink device via a wireless communication medium. At the data sink device, an HDMI frame is reconstructed by inserting received audio packets into horizontal and vertical blanking periods of the HDMI frame. | 04-11-2013 |
20130120654 | Method and Apparatus for Generating Video Descriptions - Provided in some embodiments is a computer implemented method that includes receiving time-aligned script data including dialogue words of a script and timecodes corresponding to the dialogue words, identifying gaps between dialogue words for the insertion of video description content, wherein the gaps are identified based on the duration of pauses between timecodes of adjacent dialogue words, aligning segments of video description content with corresponding gaps in dialogue, wherein the video description content for the segments is derived from corresponding script elements of the script; and generating a script document including the aligned segments of video description content. | 05-16-2013 |
20130128115 | METHOD AND DEVICE FOR GENERATING AND DETECTING FINGERPRINTS FOR SYNCHRONIZING AUDIO AND VIDEO - This invention relates to a device and a method of generating a first and a second fingerprint ( | 05-23-2013 |
20130135526 | ELECTRONIC DEVICE AND AUDIO OUTPUT METHOD - According to one embodiment, an electronic device including, a display, an audio output module, a transmission module, a first detection module, a second detection module, a third detection module, and a controller configured to control at least one of the timing of the transmission of the audio signal by the transmission module and the timing of the output of the first reproduction output by the audio output module in accordance with the time difference detected by the third detection module, and to switch whether or not to control the timing in accordance with the positional relationship between the electronic device and the partner device. | 05-30-2013 |
20130141643 | Audio-Video Frame Synchronization in a Multimedia Stream - Apparatus and method for synchronizing audio and video frames in a multimedia data stream. In accordance with some embodiments, the multimedia stream is received into a memory to provide a sequence of video frames in a first buffer and a sequence of audio frames in a second buffer. The sequence of video frames is monitored for an occurrence of at least one of a plurality of different types of visual events. The occurrence of a selected visual event is detected that spans multiple successive video frames in the sequence of video frames. A corresponding audio event is detected that spans multiple successive audio frames in the sequence of audio frames. The relative timing between the detected audio and visual events is adjusted to synchronize the associated sequences of video and audio frames. | 06-06-2013 |
20130162902 | SYSTEM AND METHOD FOR VERIFICATION OF MEDIA CONTENT SYNCHRONIZATION - In a system and method for verification of media content synchronization, the system may include a processor configured to perform a method including determining at least one similarity score of a copy of a master program based on a comparison of at least one signature of the copy with at least one signature of the master program. | 06-27-2013 |
20130162903 | TRANSMITTER, RECEIVER, AND COMMUNICATION PATH SWITCH METHOD - According to one embodiment, a transmitter including an AV transmission unit including a first transmission unit which transmits video/audio data according to a method 1, and a second transmission unit which transmits video/audio data according to a method 2, with a clock signal inserted in a data signal, and a communication unit which performs the information communication with the receiver by a predetermined standard signal, a communication channel switch unit which transfers a video clock signal to a clock terminal of an HDMI if the video/audio data is transmitted by the first transmission unit, or transfers a first predetermined standard signal output from the communication unit if the video/audio data is transmitted by the second transmission unit, while the communication channel switch unit transfers a second predetermined standard signal received by an HPD/RSV terminal of the HDMI even in transmission by any of the first and second transmission units. | 06-27-2013 |
20130162904 | SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, PROGRAM, RECORDING MEDIUM, AND SIGNAL PROCESSING SYSTEM - A signal processing device includes: a feature amount calculation unit calculating the respective feature amount of a first audio signal obtained through a first communication pathway and a second audio signal obtained through a second communication pathway corresponding to the first audio signal; an audio synchronization processing unit generating synchronization information of the first audio signal and the second audio signal based on the feature amounts calculated by the feature amount calculation unit; and an audio synthesis unit synthesizing the first audio signal with the second audio signal based on the synchronization information generated by the audio synchronization processing unit. | 06-27-2013 |
20130169869 | METHOD FOR SYNCHRONIZING MEDIA SERVICES - A method is suggested enabling a person that watches a TV broadcasted live event to select and associate in a simple manner to the displayed video, an audio stream dealing with the same event but delivered by another source than the TV channel. The method relies on techniques allowing to know and to decode some available audio streams that deal with the same live event as the one currently displayed on TV and to synchronize these audio streams with the TV channel. | 07-04-2013 |
20130182181 | METHODS FOR PROCESSING MULTIMEDIA FLOWS AND CORRESPONDING DEVICES - A method for synchronizing of multimedia flows provided by different sources or transmitted via different transport protocols to a single receiving device or are designed to be rendered by different rendering devices. According to the invention, a reference datum representative of a datum of the first multimedia flow is provided in the second multimedia flow and associated with a datum of this second multimedia flow to synchronise the two flows. This reference datum constitutes a timing reference for the datum of the second multimedia flow with which it is associated. It is used to synchronize the two multimedia flows. | 07-18-2013 |
20130194495 | Video Delivery System Using Tablet Computer and Detachable Micro Projectors - A video delivery system includes a tablet computer and one or two detachable projectors. In one embodiment, video files are transferred from the tablet computer to the projectors when they are connected. The tablet computer is used as a remote control that controls an operation of delivering a video portion of the video file through the projectors and an audio portion through the tablet computer in a synchronized manner. In one aspect, the two projectors may be positioned to project two adjacent screens that present different portions of images. In another embodiment, positions of the projectors attached to the tablet computer may be adjusted to deliver desired screens. | 08-01-2013 |
20130194496 | VIDEO/AUDIO PRODUCTION PROCESSING CONTROL SYNCHRONIZATION - Video/audio production processing control synchronization apparatus and methods are provided. Processing control commands that are provided to a first installation of production processing equipment for controlling production processing of edit units of first production signals are echoed to another installation, or possibly multiple other installations, of production processing equipment. Timing information associated with the edit units is also provided to the other installation(s), to enable production processing of delayed production signals by the other installation(s) to be synchronized with the production processing by the first installation of production processing equipment. Multiple production processing equipment installations can be controlled and synchronized from a single control interface. | 08-01-2013 |
20130194497 | MULTI-CHANNEL AUDIO SIGNAL CONVERTING DEVICE USING TIME-VARYING DIGITAL FILTER, ELECTRONIC SYSTEM INCLUDING THE SAME, AND METHOD OF CONVERTING MULTI-CHANNEL AUDIO SIGNAL - A multi-channel audio signal converting device using a time-varying digital filter, an electronic system including the same, and a method of converting an audio signal using the time-varying digital filter are provided. The multi-channel audio signal converting device includes a first signal channel and a second signal channel configured to perform analog-to-digital conversion or digital-to-analog conversion using a first clock signal; and a first time-varying filter configured to synchronize a digital audio signal synchronized with a second clock signal different from the first clock signal with the first clock signal and to input the digital audio signal to the second signal channel when digital-to-analog conversion is performed or to synchronize an output signal of the second signal channel with the second clock signal when analog-to-digital conversion is performed. | 08-01-2013 |
20130201397 | Audio Control Module - In embodiments of an audio control module ( | 08-08-2013 |
20130229575 | Digital TV Data Processing Method and System Thereof - A digital TV data processing method includes: (a) when a first channel digital TV data corresponding to a first channel is displayed, storing a second channel digital TV data corresponding to a second channel, the second channel digital TV data including an audio data and a video data; (b) when the first channel is switched to the second channel, decoding the video data of the stored second channel digital TV data at a first rate; and (c) when the decoding catches up a real-time second channel digital TV data corresponding to the second channel, decoding subsequent second channel digital TV data at a second rate and displaying a corresponding real-time decoding result; wherein the first rate is higher than the second rate. | 09-05-2013 |
20130242190 | APPARATUS, COMPUTER-READABLE STORAGE MEDIA AND METHOD - An apparatus temporal stops to output an exercise video, in response to determining that the request for temporal stop is received. The apparatus changes to a second audio volume of MIDI data by decreasing first audio volume by a pre-determined value and to a second exercise tempo by decreasing first exercise tempo by a pre-determined tempo value, in response to determining that a request for the temporal stop is received. The apparatus changes the second audio volume to the first audio volume, and the second exercise tempo to the first exercise tempo, in response to determining that a request for cancelling temporal stop is received. The apparatus restarts to output the exercise video representing the exercise motion based on the first exercise tempo. | 09-19-2013 |
20130250174 | REPEATER - A repeater is to be provided between a source device and a sink device and be used in a Lip-sync correction system that transmits a video signal and an audio signal from the source device to the sink device through a HDMI (High Definition Multimedia Interface) transmission path and reproduces the video signal and the audio signal in synchronous with them on the sink device. A communication from the source device to the sink device is defined as a downstream communication, and a communication from the sink device to the source device is defined as a upstream communication. The repeater includes a processor that receives the video signal and the audio signal through the upstream communication and the downstream communication and processes the received video signal and the received audio signal. The processor corrects deviation between the video signal and the audio signal. | 09-26-2013 |
20130271656 | SYNCHRONIZATION SIGNAL ADJUSTMENT DEVICE, SYNCHRONIZATION SIGNAL ADJUSTMENT METHOD, IMAGE DISPLAY DEVICE, AND SYNCHRONIZATION SIGNAL GENERATION DEVICE - A receiver receives a stream of program data that includes: an image signal including a plurality of frames; a sound signal; and a playback timing signal used for synchronized playback of the image signal and the sound signal. A clock signal generation unit generates a clock signal that is independent of the playback timing signal. A reception timing signal acquisition unit acquires a reception timing signal indicating a receiving time of the program data. An analysis unit analyzes a trend of time-dependent variation in a detected difference between the reception timing signal and the playback timing signal. An adjustment amount generation unit generates an adjustment amount of the clock signal, which causes the difference between the reception timing signal and the playback timing to be constant, by referring to a trend of time-dependent variation analyzed by the analysis unit. | 10-17-2013 |
20130278826 | SYSTEM, METHODS, AND COMPUTER PROGRAM PRODUCTS FOR MULTI-STREAM AUDIO/VISUAL SYNCHRONIZATION - Methods, systems and computer program products for the synchronization of media streams. In an embodiment, a gross synchronization may first be performed on the media streams, using the broadcast delays of the streams. A refined synchronization may then be performed, taking advantage of corresponding visual or audio cues in each stream. In the event that the media streams represent the same content (e.g., the same content from different providers), matching momentary actions in the video media streams may be used to achieve refined synchronization. In the event that the media streams are different (e.g., different broadcasts of the same event), other cues may be used to achieve refined synchronization, where these other cues are part of the underlying event but independent of the particular broadcasts. Examples of these latter cues may be the sound of a referee's whistle or the crack of a bat hitting a baseball. | 10-24-2013 |
20130308051 | METHOD, SYSTEM, AND NON-TRANSITORY MACHINE-READABLE MEDIUM FOR CONTROLLING A DISPLAY IN A FIRST MEDIUM BY ANALYSIS OF CONTEMPORANEOUSLY ACCESSIBLE CONTENT SOURCES - A display in a first medium is controlled in response to commands generated by analyzing a second, contemporaneously available medium such as a video accompanied by a soundtrack having components in first and second domain. A transform is applied to signals in the first domain to generate signals in the second domain. The second domain signals are ordered according to a rule and used to produce a command signal or signals to produce time varying commands to vary at least one parameter of the video signal. | 11-21-2013 |
20130308052 | PLAYBACK APPARATUS, PLAYBACK METHOD AND PROGRAM - A playback apparatus to play back content data including sound data includes an instruction operating portion to detect an instruction operation that instructs execution of prescribed processing, a hold operating portion to detect a hold setting operation that sets a state of not accepting the instruction operation to the instruction operating portion, a state control portion to set the state of not accepting the instruction operation to the instruction operating portion if the hold setting operation is detected by the hold operating portion, and a video processing portion to perform processing for displaying a video. If the video processing portion performs processing for displaying the video when the hold setting operation is detected, the state control portion controls the video processing portion to suspend at least a part of processing for displaying the video. | 11-21-2013 |
20130321702 | AUDIO RECEIVER AND SAMPLE RATE CONVERTER WITHOUT PLL OR CLOCK RECOVERY - Methods and systems of operating an audio receiver may include a reference module configured to determine an input number of clocks per number of frames for an audio signal based on a reference clock and a specified number of frames. The audio receiver can also include a conversion module configured to re-sample the audio signal based on the input number of clocks per number of frames, the specified number of frames, and a specified number of clocks per number of frames. | 12-05-2013 |
20130335629 | METHOD FOR SYNCHRONIZING MULTIMEDIA FLOWS AND CORRESPONDING DEVICE - The present invention relates to a reception device and a method for the processing of multimedia data flows in said device comprising an interface to a first network and an interface to a second network, said method comprising the following steps: receive, from the first network, a first flow comprising multimedia data through a first transport protocol fitted with a first data synchronization system; receive, from the second network, a second flow comprising multimedia data through a second transport protocol fitted with a second data synchronization system, said second synchronization system being based on timing references different from those of the first data synchronization system; characterized in that said first and second flows transport the same synchronization information in the payload field of the first and of the second transport protocol, said synchronization information comprising data indicating the moment from which said multimedia data must be rendered; synchronize said first and second flows by using said synchronization information; and perform a step for rendering said first and second multimedia flows. | 12-19-2013 |
20130342760 | METHODS AND SYSTEMS FOR TRANSMITTING SYNCHRONIZED VISUAL AND AUDIO MEDIA - Systems and methods according to the present invention provide methods, devices and systems for delivering media content to users. Broadcast audio and video streams can be synchronized for substantially simultaneous output by users. User feedback can be used to compose playlists of synchronized media. | 12-26-2013 |
20140002738 | AUDIO DEVICE THAT EXTRACTS THE AUDIO OF A MULTIMEDIA STREAM AND SERVES THE AUDIO ON A NETWORK WHILE THE VIDEO IS DISPLAYED | 01-02-2014 |
20140022454 | AUDIO PLAYING SCHEME FOR DIGITAL BILLBOARD SYSTEM - Technologies are generally described for an audio playing scheme for digital billboard systems. In some examples, a method performed under control of a server may include receiving from an end device a control signal configured to indicate that the end device is located in a first predetermined area relative to a first digital billboard, identifying first video data currently displayed on the first digital billboard, determining first audio data corresponding to the first video data, and transmitting the first audio data to the end device based on the control signal. | 01-23-2014 |
20140022455 | PICTURE PROCESSING APPARATUS, PROCESSING METHOD FOR USE THEREWITH, AND PROGRAM - A picture conversion information supply section | 01-23-2014 |
20140022456 | ALTERNATIVE AUDIO CONTENT PRESENTATION IN A MEDIA CONTENT RECEIVER - Presented herein is a method of presenting alternative audio content for an audio/visual content segment, such as a television program or a motion picture. In the method, the audio/visual content segment is received into a media content receiver. The audio/visual content segment includes primary visual content and primary audio content. A request to receive alternative audio content for the audio/visual content segment is transmitted. After transmitting the request, the alternative audio content is received into the media content receiver. The primary audio content is replaced with the alternative audio content to generate a revised audio/visual content segment. The revised audio/visual content is transferred for presentation to a user. | 01-23-2014 |
20140028914 | MEDIA SYNCHRONIZATION - Systems and methods are described for synchronizing media data. A method of synchronizing media data includes receiving a reference acoustic fingerprint for a first media data, generating at least one acoustic fingerprint fragment from a portion of the first media data, comparing the at least one acoustic fingerprint fragment against the reference acoustic fingerprint and identifying a match, and synchronizing a second media data with the first media data based on the match. | 01-30-2014 |
20140043531 | METHOD AND APPARATUS FOR SYNCHRONIZING AUDIO AND VIDEO STREAMS - Some embodiments of the invention provide a method for synchronizing an audio stream with a video stream. This method involves searching in the audio stream for audio data having values that match a distinct set of audio data values and synchronizing the audio stream with the video stream based on the search. In some embodiments, the distinct set of audio data values is defined by a predetermined distinct tone. In other embodiments, the distinct set of audio data values is defined by audio data contained in the video stream. | 02-13-2014 |
20140049689 | METHOD AND APPARATUS FOR STREAMING MEDIA DATA PROCESSING, AND STREAMING MEDIA PLAYBACK EQUIPMENT - The present invention provides a streaming media data processing method. The method includes: based on a stream index in streaming media data, separating the streaming media data stream into audio stream data and video stream data and respectively buffering them in an audio stream data queue and a video stream data queue; respectively decoding audio data buffered in the audio stream data queue and video data buffered in the video stream data queue; based on a play callback timestamp of the decoded audio data and a system time of a streaming media playback equipment, determining an audio/video synchronization time; based on a comparison result between a video frame timestamp and a sum of the determined audio/video synchronization time and a video refresh time, processing and displaying each frame in the decoded video stream data according to a predetermined processing method in accordance with the comparison result. The method may avoid the asynchrony between video and audio steams resulted from the asynchrony between audio time and the system time and, at the same time, the synchronization between the video time and the system time when displaying the stream data, which may greatly reduce the repeated video pauses in the video display. | 02-20-2014 |
20140078398 | IMAGE ENHANCEMENT APPARATUS AND METHOD - A method comprising: generating at least two frames from a video, wherein the at least two frames are configured to provide an animated image; determining at least one object based on the at least two frames, the at least one object having a periodicity of motion with respect to the at least two frames; determining at least one audio signal component for associating with the animated image based on a signal characteristic of at least one audio signal; and combining the at least one object and the at least one audio signal component wherein the animated image is substantially synchronised with the at least one signal component based on the signal characteristic. | 03-20-2014 |
20140132836 | METHOD AND APPARATUS FOR GENERATING SUMMARIZED INFORMATION, AND SERVER FOR THE SAME - The present invention relates to automatic summarization so as to recognize entire contents of multimedia data. A method of generating summarized information according to the present invention includes: generating index information on a specific audio signal or a specific video signal among input signals; synchronizing text information extracted from the input signal or received for the input signal with the index information; and generating first summarized information by using the synchronized text information and index information. | 05-15-2014 |
20140139738 | SYNCHRONIZATION AND SWITCH OVER METHODS AND SYSTEMS FOR AN ADAPTIVE AUDIO SYSTEM - Embodiments are described for a synchronization and switchover mechanism for an adaptive audio system in which multi-channel (e.g., surround sound) audio is provided along with object-based adaptive audio content. A synchronization signal is embedded in the multi-channel audio stream and contains a track identifier and frame count for the adaptive audio stream to play out. The track identifier and frame count of a received adaptive audio frame is compared to the track identifier and frame count contained in the synchronization signal. If either the track identifier or frame count does not match the synchronization signal, a switchover process fades out the adaptive audio track and fades in the multi-channel audio track. The system plays the multi-channel audio track until the synchronization signal track identifier and frame count and adaptive audio track identifier and frame count match, at which point the adaptive audio content will be faded back in. | 05-22-2014 |
20140139739 | SOUND PROCESSING METHOD, SOUND PROCESSING SYSTEM, VIDEO PROCESSING METHOD, VIDEO PROCESSING SYSTEM, SOUND PROCESSING DEVICE, AND METHOD AND PROGRAM FOR CONTROLLING SAME - To provide a device which accomplishes real-time sound identification and matching, by solving both of the problem of reducing time length of a frame and improving temporal accuracy and the problem of being robust against mixing with other sounds. | 05-22-2014 |
20140146230 | AV Timing Measurement and Correction for Digital Television - An invention for measuring, maintaining and correcting synchronization between signals which suffer varying relative delays during transmission and/or storage is shown. The present invention teaches measuring the relative delay between a plurality of signals which have suffered differing delays due to transmission, storage or other processing. The preferred embodiment of the invention includes the use of a marker which is generated in response to a second signal and combined with a first signal in a manner which ensures that the marker will not be lost in the expected processing of the first signal. Subsequently a first delayed marker is generated in response to the marker associated with or recovered from the first signal, and a second delayed marker is generated from the second signal. The first delayed marker and second delayed marker are compared to determine a measure of the relative timing or delay between said first signal and said second signal at said subsequent time. | 05-29-2014 |
20140152893 | CREATING PRESENTATIONS BY CAPTURING THE CONTENT OF A COMPUTER GENERATED VIRTUAL SECONDARY DISPLAY - A method whereby a second display device is simulated, on a personal computer or other electronic device having a primary display, which may not have the capability of connection to a second display device, using software so that images directed to be displayed on the second display device may be redirected by a personal computer or other electronic device to appear on the primary display device. The software may display the image in a portion of the primary display, allowing the user of the invention to monitor the simulated display and capture images from the simulated second display using an automated capture algorithm to capture and store the image for future use. The presenter or user of the method may make adjustments to the capture parameters, via a control interface which may also be viewed on the primary display device. | 06-05-2014 |
20140160351 | REPEATER BEING UTILIZED BETWEEN A SOURCE AND SINK DEVICE FOR LIP-SYNCING IN AN HDMI SYSTEM - A repeater is to be provided between a source device and a sink device and be used in a Lip-sync correction system that transmits a video signal and an audio signal from the source device to the sink device through a HDMI (High Definition Multimedia Interface) transmission path and reproduces the video signal and the audio signal in synchronous with them on the sink device. A communication from the source device to the sink device is defined as a downstream communication, and a communication from the sink device to the source device is defined as a upstream communication. The repeater includes a processor that receives the video signal and the audio signal through the upstream communication and the downstream communication and processes the received video signal and the received audio signal. The processor corrects deviation between the video signal and the audio signal. | 06-12-2014 |
20140160352 | DERIVING VISUAL RHYTHM FROM VIDEO SIGNALS - A method and a system for deriving visual rhythm from a video signal are described. A feature extraction module receives the video signal and extracts a two-dimensional feature from the video signal. A one-dimensional video feature computation module derives a one-dimensional feature from the extracted two-dimensional feature. A visual rhythm detector module detects a visual beat and a visual tempo from the one-dimensional feature. | 06-12-2014 |
20140168515 | METHODS AND APPARATUSES FOR TRANSMITTING AND FOR RECEIVING MULTIMEDIA CONTENTS - Methods and apparatuses are provided for transmitting and receiving multimedia contents that include at least two components (C | 06-19-2014 |
20140192263 | AUDIO VIDEO OFFSET DETECTOR - Systems and methods of measuring a temporal offset between audio content and video content that employ audio fingerprints from an audio signal in the audio content, and video fingerprints from video frames in the video content. The systems obtain reference audio and video fingerprints prior to transmission of video over a media channel, and obtain target audio and video fingerprints subsequent to transmission of the video over the media channel. Each fingerprint has an associated time stamp. Using the reference and target audio fingerprints and their associated time stamps, the systems determine an audio time stamp offset. Using the reference and target video fingerprints and their associated time stamps, the systems determine a video time stamp offset. Using the audio and video time stamp offsets, the systems determine a temporal offset between the video content and the audio content introduced by the media channel. | 07-10-2014 |
20140240596 | ELECTRONIC DEVICE AND AUDIO OUTPUT METHOD - According to one embodiment, an electronic device including, a display, an audio output module, a transmission module, a first detection module, a second detection module, a third detection module, and a controller configured to control at least one of the timing of the transmission of the audio signal by the transmission module and the timing of the output of the first reproduction output by the audio output module in accordance with the time difference detected by the third detection module, and to switch whether or not to control the timing in accordance with the positional relationship between the electronic device and the partner device. | 08-28-2014 |
20140267906 | ENHANCED EXPERIENCE FROM STANDARD PROGRAM CONTENT - Methods and apparatus are disclosed for enhancing the viewing experience of video content by analyzing the content to determine where enhanced sensory experience events may be appropriate, by identifying devices at the viewing location and devices personal to the viewer that can be controlled to provide an enhanced sensory experience, and by activating those devices in a way that is synchronized with the presentation of the content. | 09-18-2014 |
20140300815 | METHOD FOR IMPROVING CHANNEL CHANGE IN A TELEVISION APPLIANCE - It is disclosed a method for changing channel in a television appliance. Upon reception of a user command to tune on a desired channel ( | 10-09-2014 |
20140375883 | Methods, Systems, and Products for Alternate Audio Sources - Audio and video signals are synchronized for pleasing presentation of content. As content is streamed to a device, an audio portion may lag or lead a video portion. Spoken words, for example, are out of synch with the lip movements. Video time stamps are synchronized to audio time stamps to ensure streaming content is pleasing. | 12-25-2014 |
20150022720 | METHOD AND APPARATUS FOR PROVIDING SIGNATURES OF AUDIO/VIDEO SIGNALS AND FOR MAKING USE THEREOF - A method and apparatus are disclosed for providing a video signature representative of a content of a video signal. A method and apparatus are further disclosed for providing an audio signature representative of a content of an audio signal. A method and apparatus for detecting lip sync are further disclosed and take advantage of the method and apparatus disclosed for providing a video signature and an audio signature. | 01-22-2015 |
20150029396 | NETWORKED PROGRAMMABLE TIMECODE AND METADATA TRANSFER SYSTEM - A networked, multi-channel, and bi-directional programmable datalink timecode system including a generator apparatus that connects to and provides timecode, genlock, metadata, and streaming audio and video images to networked devices via wired and wireless networks. System includes software on a computer hardware device capable of connecting to and receiving streaming timecode, metadata, and streaming audio and video images from a generator apparatus. System also includes a datalink transceiver apparatus that connects to and receives timecode, genlock, metadata, and streaming audio from a generator apparatus. | 01-29-2015 |
20150042880 | AV Timing Measurement and Correction for Digital Television - An invention for measuring, maintaining and correcting synchronization between signals which suffer varying relative delays during transmission and/or storage is shown. The present invention teaches measuring the relative delay between a plurality of signals which have suffered differing delays due to transmission, storage or other processing. The preferred embodiment of the invention includes the use of a marker which is generated in response to a second signal and combined with a first signal in a manner which ensures that the marker will not be lost in the expected processing of the first signal. Subsequently a first delayed marker is generated in response to the marker associated with or recovered from the first signal, and a second delayed marker is generated from the second signal. The first delayed marker and second delayed marker are compared to determine a measure of the relative timing or delay between said first signal and said second signal at said subsequent time. | 02-12-2015 |
20150055013 | DISPLAY APPARATUS AND CONTROL METHOD THEREOF - A display apparatus and a method of controlling the display apparatus are disclosed. The display apparatus includes: a signal receiver configured to receive a signal containing video data of a series of frames and corresponding sound data; a first data extractor configured to extract caption data from the signal; a second data extractor configured to extract the video data and the sound data from the signal; a buffering section configured to buffer the extracted video data; a sound-text converter configured to convert the extracted sound data into a text through sound recognition; a synchronizer configured to compare the converted text with the extracted caption data, and synchronize the caption data with frames corresponding to respective caption data among frames of the buffered video data; and a display configured to display the frames synchronized with the caption data. | 02-26-2015 |
20150062429 | SYSTEM AND METHOD FOR VIDEO AND SECONDARY AUDIO SOURCE SYNCHRONIZATION - Disclosed herein are systems, methods, and computer-readable storage media for video and secondary audio source synchronization. A system practicing the method establishes a communication with a device such as a telephone or digital device and receives an identification of an audio stream associated with a video presentation specified by a user. The user interacts with the system using the dial pad on a telephone or by manipulating controls within a dedicated application on a smartphone or tablet device. The system computes a likely delay affecting most devices receiving the audio stream and delays a transmission of the audio stream to the device by the delay amount. In one embodiment, the system receives a delay adjustment signal from the device and adjusts the delay amount according to the signal. Then the system transmits the audio stream to the device by the new delay amount. | 03-05-2015 |
20150077633 | A/V RECEIVING APPARATUS AND METHOD FOR DELAYING OUTPUT OF AUDIO SIGNAL AND A/V SIGNAL PROCESSING SYSTEM - An A/V receiving apparatus is disclosed. The A/V receiving apparatus includes a first interface connected to a display apparatus, a second interface connected to an audio signal output apparatus, and a controller configured to, when a video signal and an audio signal are received, transmit an audio signal return request to the display apparatus along with the video signal and the audio signal, when the audio signal is returned from the display apparatus, calculate an output time difference of the video signal and the audio signal based on a return timing of the audio signal, delay the audio signal according to the output time difference and transmit the audio signal to the audio signal output apparatus. | 03-19-2015 |
20150077634 | DATA PROCESSING SYSTEM - The present invention easily realizes synchronization between processor cores in a multicore system. A data processing system receiving a group of data of different kinds from the outside and performing data processes by kinds includes: a plurality of data process control units corresponding to the kinds of the data group and performing data processes on the data group of corresponding kinds; and a memory unit which can be accessed by the data process control units and has a first region storing a value indicating whether the data process by the data process control units can be executed or not. Each of the data process control units updates the value in the first region on completion of preparation for executing the data process of itself and, when the value in the first region becomes a predetermined value, synchronizes start timings of the data processes and executes the data processes. | 03-19-2015 |
20150109529 | METHOD AND SYSTEM OF PLAYING REAL TIME ONLINE VIDEO AT VARIABLE SPEED - The present disclosure provides a method and a system of playing online video at a speed variable in real time, the method comprising: receiving multimedia source file chosen by the user; reading out the multimedia source file; separating audio stream and video stream from the multimedia source file; decoding the audio stream and the video stream separately; varying the speed of the audio stream; assigning audio clock of the audio stream whose speed has been varied to video clock of the decoded video stream, and reading out the video clock after assignment; and outputting the audio stream and the video stream. | 04-23-2015 |
20150146101 | COMMUNICATION APPARATUS, SIGNAL PROCESSING METHOD, AND RECORDING MEDIUM STORING A SIGNAL PROCESSING PROGRAM - In a communication system incorporating a communication apparatus that transfers/receives a TS packet using MPEG-2-TS to synchronize a video signal with an audio signal includes a communication circuit to pad the TS packet with a null frame to reach a prescribed frame size when storing the TS packet that includes a PCR value in a frame. In the communication apparatus, the communication circuit deletes the null frame in the TS packet when receiving the TS packet. The communication apparatus further includes an encoder that outputs a PCR report signal that indicates that the generated TS packet includes the PCR value to the communication circuit. In the communication apparatus, the size of the frame is set in multiples of the size of the TS packet. The communication apparatus further includes an input device to configure whether the TS packet is padded automatically or manually. | 05-28-2015 |
20150326754 | Synchronisation of Audio and Video Playback - A method of playing audio content to a viewer in synchronisation with a video content. The method comprises receiving and digitising an ultrasonic signal comprising ultrasonic synchronisation signal(s) encoding a respective timecode through modulation of ultrasonic carrier signal(s), a first ultrasonic carrier signal having been amplitude modulated to encode logical “1” or “0” in data-carrying segments, each data-carrying segments being followed by non-data-carrying segments in which the amplitude of the ultrasonic carrier signal does not exceed a predetermined threshold. A digitised ultrasonic synchronisation signal is processed to identify the data-carrying segments, and the corresponding timecode is extracted from the data-carrying segments. A stored audio content is played back from a playback point determined based on the timecode. | 11-12-2015 |
20150334338 | CONTENT OUTPUT APPARATUS, MOBILE APPARATUS, AND CONTROLLING METHODS THEREOF - A content output apparatus, methods for controlling a content apparatus, and a mobile apparatus are provided. The content output apparatus includes a receiver configured to receive content, a display configured to output a video signal of the content, a speaker configured to output an audio signal of the content, a communicator configured to transmit the audio signal to at least one external speaker, and a controller configured to determine whether the audio signal is related to the video signal, and display a user interface screen for inducing a selection of an output mode which transmits the audio signal to the at least one external speaker with a communication method corresponding to the determination result among a plurality of output modes via the display. | 11-19-2015 |
20150341528 | METHOD AND SERVER SYSTEM FOR SYNCHRONIZATION OF AUDIO/VIDEO MEDIA FILES - A method for synchronization of audio/video (AV) media files includes: writing respectively AV real-time transport protocol (RTP) packets and AV real-time transport control protocol (RTCP) packets into AV buffers; obtaining respectively timestamps in first ones of AV RTCP packets to serve as absolute start times of first ones of the AV RTP packets, and AV timestamp differences between the timestamps of adjacent ones of the AV RTP packets; generating respectively playback timestamps of the AV RTP packets according to the AV timestamp differences in combination with the absolute start times; and writing the AV RTP packets in combination with the playback timestamps of the AV RTP packets into a media file. | 11-26-2015 |
20150350494 | SYSTEM AND METHOD OF IMPROVING AUDIO TIME STRETCHING USING TIMELINE - Method for improving audio time stretching starts with processor receiving input media file and rate schedule. Rate schedule includes identification of portions of input media file and playback output rates associated with each of the portions of input media file. Writer thread being executed by processor generates timeline that is linked list including segments that respectively represent portions of input media file and associated playback output rates as desired playback rate curves. Generating timeline include writing each segment in linked list to end of linked list. Processor then performs time scaling of media file based on rate schedule to generate output media file. Performing time scaling of media file includes identifying by reader thread being executed by processor a segment in timeline corresponding to desired output time, and translating by reader thread desired output time to corresponding input time based on identified segment. Other embodiments are described. | 12-03-2015 |
20150358507 | TIMING RECOVERY FOR EMBEDDED METADATA - A method, non-transitory computer-readable storage medium, and reception apparatus for processing metadata, and an information providing apparatus for providing the metadata. The method for processing metadata includes processing content that includes a plurality of metadata embedded therein for presentation to a user. Each of the metadata includes the same payload data and different timing recovery data. As the content is processed, one of the plurality of metadata is extracted from an audio or video portion of the content. A determination is made as to whether a first instance of the payload data is included in the extracted one of the plurality of metadata based on the timing recovery data included in the extracted one of the plurality of metadata. | 12-10-2015 |
20150373230 | NETWORKED PROGRAMMABLE TIMECODE AND METADATA TRANSFER SYSTEM - A networked, multi-channel, and bi-directional programmable datalink timecode system including a generator apparatus that connects to and provides timecode, genlock, metadata, and streaming audio and video images to networked devices via wired and wireless networks. System includes software on a computer hardware device capable of connecting to and receiving streaming timecode, metadata, and streaming audio and video images from a generator apparatus. System also includes a datalink transceiver apparatus that connects to and receives timecode, genlock, metadata, and streaming audio from a generator apparatus. | 12-24-2015 |
20150373231 | VIDEO SYNCHRONIZATION BASED ON AN AUDIO CUE - Techniques are disclosed for manipulating a media player based on the environment in which content is consumed. For example, a user listening to a radio broadcast or some other ambient sound hears a song begin to play. Recognizing the song, the user wishes to watch an associated music video. A smartphone is used to record a portion of the ambient sound using an application configured according to certain disclosed embodiments. The observed audio is compared with one or more archived audio segments, each of which is associated with corresponding video content. If a match is found between the observed audio segment and an archived audio segment, video content corresponding to the matched archived audio segment is played back via a media player installed on the device. The playback is synchronized with the ambient sound. This allows the user to enjoy both the ambient audio and corresponding video content. | 12-24-2015 |
20160014305 | AUTOMATIC TIME SIGNATURE-BASED VIDEO MATCHING FOR A CAMERA NETWORK | 01-14-2016 |
20160037279 | Audio Device - A method and system dynamically adjusts the audio of an audio and video signal to improve its overall sound quality and dialog intelligibility. Some embodiments use gain, equalization, audio signal compression and spatial enhancement (reverb) on individual channels of a multichannel audio signal. | 02-04-2016 |
20160057316 | COORDINATING AND MIXING AUDIOVISUAL CONTENT CAPTURED FROM GEOGRAPHICALLY DISTRIBUTED PERFORMERS - Audiovisual performances, including vocal music, are captured and coordinated with those of other users in ways that create compelling user experiences. In some cases, the vocal performances of individual users are captured (together with performance synchronized video) on mobile devices, television-type display and/or set-top box equipment in the context of karaoke-style presentations of lyrics in correspondence with audible renderings of a backing track. Contributions of multiple vocalists are coordinated and mixed in a manner that selects for visually prominent presentation performance synchronized video of one or more of the contributors. Prominence of particular performance synchronized video may be based, at least in part, on computationally-defined audio features extracted from (or computed over) captured vocal audio. Over the course of a coordinated audiovisual performance timeline, these computationally-defined audio features are selective for performance synchronized video of one or more of the contributing vocalists. | 02-25-2016 |
20160057317 | CONTENT SYNCHRONIZATION USING WATERMARK TIMECODES - Methods, devices and computer program products allow improved synchronization among multiple contents. One disclosed method includes receiving a first and a second content and performing watermark extraction to recover a first timecode as part of a watermark embedded into a segment of that content. The first timecode conforms to a first type of timing system. Next, a timing system associated with the second content is determined, and a mapping is obtained that allows timecode conversion between the first and the second timing systems. Using the mapping to synchronize the presentation of the second content with that of the first content. Thus synchronization of multiple contents is properly maintained even when processing operations such as format conversion and transcoding cause metadata streams that carry timing information to be removed. | 02-25-2016 |
20160065791 | SOUND IMAGE PLAY METHOD AND APPARATUS - A sound image play method and apparatus, which relate to the field of multimedia, and can reproduce original stereo effects of any quantity of sound images corresponding to an image. A specific solution is: acquiring image position information; acquiring a sound channel information set according to the image position information; and playing a sound image in accordance with the sound channel information set. The embodiments of the present invention are used for sound image play. | 03-03-2016 |
20160080797 | AUDIO PLAYING SCHEME FOR DIGITAL BILLBOARD SYSTEM - Technologies are generally described for an audio playing scheme for digital billboard systems. In some examples, a method performed under control of a server may include receiving from an end device a control signal configured to indicate that the end device is located in a first predetermined area relative to a first digital billboard, identifying first video data currently displayed on the first digital billboard, determining first audio data corresponding to the first video data, and transmitting the first audio data to the end device based on the control signal. | 03-17-2016 |
20160182875 | Gallery of Videos Set to an Audio Time Line | 06-23-2016 |