Patent application number | Description | Published |
20090187409 | METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO SIGNALS - Techniques for efficiently encoding an input signal are described. In one design, a generalized encoder encodes the input signal (e.g., an audio signal) based on at least one detector and multiple encoders. The at least one detector may include a signal activity detector, a noise-like signal detector, a sparseness detector, some other detector, or a combination thereof. The multiple encoders may include a silence encoder, a noise-like signal encoder, a time-domain encoder, a transform-domain encoder, some other encoder, or a combination thereof. The characteristics of the input signal may be determined based on the at least one detector. An encoder may be selected from among the multiple encoders based on the characteristics of the input signal. The input signal may be encoded based on the selected encoder. The input signal may include a sequence of frames, and detection and encoding may be performed for each frame. | 07-23-2009 |
20090319261 | CODING OF TRANSITIONAL SPEECH FRAMES FOR LOW-BIT-RATE APPLICATIONS - Systems, methods, and apparatus for low-bit-rate coding of transitional speech frames are disclosed. | 12-24-2009 |
20090319262 | CODING SCHEME SELECTION FOR LOW-BIT-RATE APPLICATIONS - Systems, methods, and apparatus for low-bit-rate coding of transitional speech frames are disclosed. | 12-24-2009 |
20120296641 | SYSTEMS, METHODS, AND APPARATUS FOR WIDEBAND ENCODING AND DECODING OF INACTIVE FRAMES - Speech encoders and methods of speech encoding are disclosed that encode inactive frames at different rates. Apparatus and methods for processing an encoded speech signal are disclosed that calculate a decoded frame based on a description of a spectral envelope over a first frequency band and the description of a spectral envelope over a second frequency band, in which the description for the first frequency band is based on information from a corresponding encoded frame and the description for the second frequency band is based on information from at least one preceding encoded frame. Calculation of the decoded frame may also be based on a description of temporal information for the second frequency band that is based on information from at least one preceding encoded frame. | 11-22-2012 |
Patent application number | Description | Published |
20080288245 | TANDEM-FREE INTERSYSTEM VOICE COMMUNICATION - Techniques are presented herein to provide tandem-free operation between two wireless terminals through two otherwise incompatible wireless networks. Specifically, embodiments provide tandem-free operation between a wireless terminal communicating through a continuous transmission (CTX) wireless channel to a wireless terminal communicating through a discontinuous transmission (DTX) wireless channel. In a first aspect, inactive speech frames are translated between DTX and CTX formats. In a second aspect, each wireless terminal includes an active speech decoder that is compatible with the active speech encoder on the opposite end of the mobile-to-mobile connection. | 11-20-2008 |
20090281799 | TANDEM-FREE VOCODER OPERATIONS BETWEEN NON-COMPATIBLE COMMUNICATION SYSTEMS - Tandem-free vocoder operations (TFO) between non-compatible communication systems may be enabled through hardware modifications at communication elements within each system. In one aspect, each infrastructure entity in System 1 comprises an intra-system TFO Frame Generator G | 11-12-2009 |
20100165922 | DISCONTINUOUS TRANSMISSION IN A WIRELESS NETWORK - A communication system for use in a wireless network includes: an audio module configured to provide packets indicative of audio for a part of a communication between the communication system and another communication system, the communication spanning packet times, the packets including at least critical packets indicative of critical audio; and a transceiver coupled to the audio module and configured to cause: the critical packets to be conveyed for transmission; and first non-critical packets, indicative of non-critical audio, to be conveyed for transmission such that (1) the first non-critical packets represent less than all of a time between transmission of critical packets and (2) no more than a threshold number of packet times will pass without one of the critical packets or one of the first non-critical packets being conveyed by the transceiver for transmission. | 07-01-2010 |
20110099004 | DETERMINING AN UPPERBAND SIGNAL FROM A NARROWBAND SIGNAL - A method for determining an upperband speech signal from a narrowband speech signal is disclosed. A list of narrowband line spectral frequencies (LSFs) is determined from the narrowband speech signal. A first pair of adjacent narrowband LSFs that have a lower difference between them than every other pair of adjacent narrowband LSFs in the list is determined. A first feature that is a mean of the first pair of adjacent narrowband LSFs is determined. Upperband LSFs are determined based on at least the first feature using codebook mapping. | 04-28-2011 |
20110294501 | CODEC DEPLOYMENT USING IN-BAND SIGNALS - After a call is established between two stations using a codec that has been negotiated during call setup, in-band signaling may be used between the two stations to change the codec that is to be used. The in-band signals are indicative that the station that is transmitting the in-band signals can operate with a second codec and are used to probe whether the receiving station can also operate with that second codec. If the receiving station detects and reacts to the in-band signals, then both stations change to communicate with the second codec. The second codec has compatible packet sizes of the deployed (originally negotiated) codec without any need of infrastructure upgrade and/or quality compromise to legacy phone users (i.e., stations that cannot operate with the second codec). | 12-01-2011 |
20120065980 | CODING AND DECODING A TRANSIENT FRAME - An electronic device for coding a transient frame is described. The electronic device includes a processor and executable instructions stored in memory that is in electronic communication with the processor. The electronic device obtains a current transient frame. The electronic device also obtains a residual signal based on the current transient frame. Additionally, the electronic device determines a set of peak locations based on the residual signal. The electronic device further determines whether to use a first coding mode or a second coding mode for coding the current transient frame based on at least the set of peak locations. The electronic device also synthesizes an excitation based on the first coding mode if the first coding mode is determined. The electronic device also synthesizes an excitation based on the second coding mode if the second coding mode is determined. | 03-15-2012 |
20130035105 | APPLICATION NOTIFICATION AND SERVICE SELECTION USING IN-BAND SIGNALS - In-band signaling may be used between two stations to determine the capabilities of the stations and/or send actionable information between the stations participating in the call. The in-band signals are indicative that the station that is transmitting the in-band signals can use in-band signals as a conduit to send and/or receive various types of information and are used to probe whether the receiving station can operate similarly. If the receiving station detects and reacts to the in-band signals, then both stations can pass control information and data as well as enhancements between each other, without any need of infrastructure upgrade and/or quality compromise to legacy phone users. Additionally or alternatively, out of band interfaces and watermarking may also be used. | 02-07-2013 |
20140359559 | AUTOMATED GRAPH-BASED PROGRAMMING - A method includes capturing an image of a scene that includes a diagram. The method further includes applying functional block recognition rules to image data of the image to recognize functional blocks of the diagram. The functional blocks include at least a first functional block associated with a first computer operation. The method further includes determining whether the functional blocks comply with functional block syntax rules. A functional graph is computer-generated based on the functional blocks complying with the functional block syntax rules. The functional graph corresponds to the diagram, and the functional graph includes the functional blocks. | 12-04-2014 |
20140359563 | EFFICIENT EXECUTION OF GRAPH-BASED PROGRAMS - A method includes accessing, at a computing device, data descriptive of a graph representing a program. The graph includes multiple nodes representing execution steps of the program and includes multiple edges representing data transfer steps. The method also includes determining at least two heterogeneous hardware resources of the computing device that are available to execute code represented by one or more of the nodes, and determining one or more paths from a source node to a sink node based on a topology of the graph. The method further includes scheduling execution of code at the at least two heterogeneous hardware resources. The code is represented by at least one of the multiple nodes, and the execution of the code is scheduled based on the one or more paths. | 12-04-2014 |
20150178320 | SYSTEMS, METHODS, AND APPARATUS FOR IMAGE RETRIEVAL - A method of image retrieval includes obtaining information identifying a plurality of selected objects and selecting one among a plurality of candidate geometrical arrangements. This method also includes, by at least one processor, and in response to the selecting, identifying at least one digital image, among a plurality of digital images, that depicts the plurality of selected objects arranged according to the selected candidate geometrical arrangement. | 06-25-2015 |
20150178930 | SYSTEMS, METHODS, AND APPARATUS FOR GENERATING METADATA RELATING TO SPATIAL REGIONS OF NON-UNIFORM SIZE - A method of generating metadata includes using at least one digital image to select at least one among a plurality of objects, wherein the at least one digital image depicts the plurality of objects in relation to a physical space. The method also includes, in response to the selecting at least one object, determining a position of the at least one object in a location space. The method also includes, based on said determined position, producing metadata that identifies one among a plurality of separate regions that divide the location space, wherein said plurality of separate regions includes regions of unequal size. | 06-25-2015 |
20150178931 | SYSTEMS, METHODS, AND APPARATUS FOR ENCODING OBJECT FORMATIONS - A method of generating metadata includes using at least one digital image to select a plurality of objects, wherein the at least one digital image depicts the plurality of objects in relation to a physical space. The method also includes, by at least one processor and based on information indicating positions of the selected objects in a location space, producing metadata that identifies one among a plurality of candidate geometrical arrangements of the selected objects. | 06-25-2015 |
20150178953 | SYSTEMS, METHODS, AND APPARATUS FOR DIGITAL COMPOSITION AND/OR RETRIEVAL - A method includes receiving information that identifies a reference position in a location space. The method also includes receiving data that identifies one among a plurality of candidate geometrical arrangements. The method also includes producing a representation that depicts a plurality of objects which are arranged, relative to the reference position in the location space, according to the identified candidate geometrical arrangement. | 06-25-2015 |
20150179219 | SELECTION AND TRACKING OF OBJECTS FOR DISPLAY PARTITIONING AND CLUSTERING OF VIDEO FRAMES - A method includes selecting at least two objects within a primary video stream, generating a first video stream from the primary video stream that includes a first of the selected objects, and generating a second video stream from the primary video stream that includes a second of the selected objects. The primary video stream has a primary field of view, and the first and second video streams have respective first and second fields of view that are more narrow than the primary field of view. The first field of view includes a portion of the primary field of view that is not within the second field of view, and the second field of view includes a portion of the primary field of view that is not within the first field of view. | 06-25-2015 |
20150331711 | SYSTEMS AND METHODS FOR CONTEXT-AWARE APPLICATION CONTROL - A method performed by an electronic device is described. The method includes obtaining sensor information. The method also includes identifying a class of an object based on the sensor information. The method further includes determining one or more actions based on the sensor information, the class of the object and an action usage history. The method additionally includes performing at least one of the one or more actions based on at least one application. | 11-19-2015 |