Patent application number | Description | Published |
20100124321 | System and method for dynamic audio conference call configuration and management - A new approach is proposed that contemplates audio conference systems and methods to expand the capacity a conference call by utilizing both a mixing engine that enables a first group participants to be able to both listen to and speak at the conference call, and a broadcast engine that broadcasts the conference call to a second group of participants who are only interested in listening to, but not speaking at the conference call. During the conference call, participants at the mixing engine and the broadcast engine can be dynamically adjusted. | 05-20-2010 |
20100262267 | Systems and methods for computer and voice conference audio transmission during conference call via PSTN phone - A new approach is proposed that contemplates systems and methods to support canceling audio streams leaked from a speaker to a PSTN so that only the audio stream of a presenter or viewer speaking at a conference call is transmitted. Here, the audio streams being canceled includes the audio stream of an application being run or a material being presented online during a web conference. The voice audio stream of a presenter or viewer is then transmitted in addition to the computer audio stream, clean from any other audio stream of echoes or feedbacks captured by the hosting device during the conference call. | 10-14-2010 |
20100262268 | Systems and methods for computer and voice conference audio transmission during conference call via VOIP device - A new approach is proposed that contemplates systems and methods to support canceling audio streams leaked from a speaker to a microphone so that a clean audio stream of a presenter or viewer speaking at a conference call is transmitted. Here, the audio streams being canceled includes the computer audio stream of an application being run or a material being presented online during a web conference and/or the audio stream received from the rest of the group of participants at the conference call. The computer audio stream is then transmitted in addition to the presenter or viewer audio stream, and separate from any other audio stream captured by the hosting device during the conference call. | 10-14-2010 |
20100262656 | Systems and methods for computer and voice conference audio transmission during conference call via VoIP device - A new approach is proposed that contemplates systems and methods to support canceling audio streams leaked from a speaker to a microphone so that a clean audio stream of a presenter or viewer speaking at a conference call is transmitted. Here, the audio streams being canceled includes the computer audio stream of an application being run or a material being presented online during a web conference and/or the audio stream received from the rest of the group of participants at the conference call. The computer audio stream is then transmitted in addition to the presenter or viewer audio stream, and separate from any other audio stream captured by the hosting device during the conference call. | 10-14-2010 |
20110019810 | Systems and methods for switching between computer and presenter audio transmission during conference call - A new approach is proposed that contemplates systems and methods to support switching between computer audio and presenter audio during a conference call so that one and only one, not both, of the two audio streams is being transmitted to the rest of the conference at any time. More specifically, a switch engine is adopted, which separately takes one or more audio streams captured by a sound mixing component of the hosting device of a presenter and by a microphone attached to the hosting device as its two inputs, and outputs only one of the two inputs at any time. The selected audio output is then processed and transmitted to the rest of the conference with feedback from other audio sources canceled. | 01-27-2011 |
20110150433 | Systems and methods for video-aware screen capture and compression - A new approach is proposed that contemplates systems and methods to support video-aware screen capture and compression. More specifically, the video-aware approach first detects whether or when video content is being actively played back on a screen of a hosting device. If the video content is actively being rendered, the approach separates (segments) the screen content into static (non-video) content and video content, The approach then applies video-specific capture and compression methods to the video content of the screen and other suitable compression methods to the non-video content of the screen. The compressed static and video content of the screen are separately and independently transmitted across the network to remote computing devices and are then decompressed and processed to reconstruct screen of its original content for display at the screens of the remote computing devices. | 06-23-2011 |
20110246761 | Systems and methods for distributed media stream transcoding and sharing - A new approach is proposed that contemplates systems and methods to support distributed stream media transcoding and sharing in real time. Under the approach, a host associated with a sender generates a high quality stream of media content that is to be shared with a plurality of viewers over a communication network. The hosting devices associated with the plurality of viewers are evaluated for their capability to process and/or transcode the high quality media stream. Based on the evaluation, the host of the sender encodes and transmits the high quality media stream to at least one selected host associated a viewer. Besides decoding the received high quality media stream and displaying it for its own consumption, the selected host of the sender further transcodes the media stream by re-encoding the high quality media steam into a different, probably lower quality media stream, and transmits the re-encoded media stream to a mobile device associated with another viewer, which then decodes and displays the lower quality media stream on the mobile device. | 10-06-2011 |
20120143955 | METHODS AND SYSTEMS FOR BANDWIDTH ADAPTIVE N-TO-N COMMUNICATION IN A DISTRIBUTED SYSTEM - Methods and systems for bandwidth adaptive computing device to computing device communication are described. Bandwidth adaptive communication includes receiving a communication from a first participant, storing the payload data of the communication in a channel memory element associated with the first participant, and transmitting the payload data to a second participant. | 06-07-2012 |
20120162349 | SYSTEMS, METHODS, AND DEVICES FOR TIME-SHIFTING PLAYBACK OF A LIVE ONLINE MEETING - In various embodiments, an attendee of a live online meeting selects screen data from an earlier point in time in the online meeting for playback while the meeting is still ongoing. Automatically generated image thumbnails of the screen data for the online meeting may be employed to navigate to the earlier point in time. Attendees may annotate screenshots associated with the thumbnails, and a summary document may be generated that includes the screenshots and the annotations. | 06-28-2012 |
20120166545 | SYSTEMS, METHODS, AND DEVICES FOR COMMUNICATING DURING AN ONGOING ONLINE MEETING - In various embodiments, an attendee of a live online meeting selects screen data from an earlier point in time in the online meeting for playback while the meeting is still ongoing. Automatically generated image thumbnails of the screen data for the online meeting may be employed to navigate to the earlier point in time. Attendees may annotate screenshots associated with the thumbnails, and a summary document may be generated that includes the screenshots and the annotations. | 06-28-2012 |
20120166921 | SYSTEMS, METHODS, AND DEVICES FOR GENERATING A SUMMARY DOCUMENT OF AN ONLINE MEETING - In various embodiments, an attendee of a live online meeting selects screen data from an earlier point in time in the online meeting for playback while the meeting is still ongoing. Automatically generated image thumbnails of the screen data for the online meeting may be employed to navigate to the earlier point in time. Attendees may annotate screenshots associated with the thumbnails, and a summary document may be generated that includes the screenshots and the annotations. | 06-28-2012 |
20120166952 | SYSTEMS, METHODS, AND DEVICES FOR FACILITATING NAVIGATION OF PREVIOUSLY PRESENTED SCREEN DATA IN AN ONGOING ONLINE MEETING - In various embodiments, an attendee of a live online meeting selects screen data from an earlier point in time in the online meeting for playback while the meeting is still ongoing. Automatically generated image thumbnails of the screen data for the online meeting may be employed to navigate to the earlier point in time. Attendees may annotate screenshots associated with the thumbnails, and a summary document may be generated that includes the screenshots and the annotations. | 06-28-2012 |
20130024518 | SYSTEMS AND METHODS FOR COMPUTER AND VOICE CONFERENCE AUDIO TRANSMISSION DURING CONFERENCE CALL VIA VOIP DEVICE - A new approach is proposed that contemplates systems and methods to support canceling audio streams leaked from a speaker to a microphone so that a clean audio stream of a presenter or viewer speaking at a conference call is transmitted. Here, the audio streams being canceled includes the computer audio stream of an application being run or a material being presented online during a web conference and/or the audio stream received from the rest of the group of participants at the conference call. The computer audio stream is then transmitted in addition to the presenter or viewer audio stream, and separate from any other audio stream captured by the hosting device during the conference call. | 01-24-2013 |
20130111362 | INTEGRATED ONLINE WORKSPACES | 05-02-2013 |
20140362163 | PROVIDING USER VIDEO HAVING A VIRTUAL CURTAIN TO AN ONLINE CONFERENCE - A technique provides user video to an online conference. The technique involves receiving a live user video signal from a camera device. The live user video signal defines a field of view. The technique further involves automatically identifying live initial content of a presentation region within the field of view and live initial content of a privacy region (e.g., a background region) within the field of view. The technique further involves generating, as the user video signal to the online conference, a modified user video signal based on the live user video signal. The modified video signal includes (i) the live initial content of the presentation region within the field of view and (ii) modified video content in place of the live initial content of the privacy region within the field of view. Such operation effectively forms a virtual curtain in which anything in the background is hidden. | 12-11-2014 |
20150067026 | ACQUIRING ONLINE MEETING DATA RELATING TO AN ONLINE MEETING - A technique acquires online meeting data relating to an online meeting. The technique involves running, by processing circuitry, a set of programs (e.g., an operating system, a slideshow application, a word processing program, other programs, etc.) to carry out an online meeting which shares online meeting content among a set of users. The technique further involves performing, while the processing circuitry runs the set of programs to carry out the online meeting, a set of information collection operations by the processing circuitry. The set of information collection operations collects online meeting data from the set of programs. The collected online meeting data includes non-bitmap text-based information extracted from the set of programs (e.g., keywords, phrases, etc. obtained via procedure calls using standard APIs to the set of programs). The technique further involves storing, by the processing circuitry, the collected online meeting data in a designated location of computer memory. | 03-05-2015 |
20150067542 | GUI WINDOW WITH PORTAL REGION FOR INTERACTING WITH HIDDEN INTERFACE ELEMENTS - A computer is operated by displaying a window on a display device, where the window is an opaque window overlaid on the entirety of a system desktop that includes graphical representations of system controls and application controls. The window displays user interface elements of an application program executing on the computer, and also includes a portal region displaying an image of the system desktop including counterparts of the system controls and application controls. The computer provides user-controlled operation of the system controls and application controls based on simulated user interaction with the counterparts of the system controls and application controls in the portal region. The application program can effectively coordinate the use of the display by itself and by the system and other applications using the system desktop, relieving the user of this task. | 03-05-2015 |
Patent application number | Description | Published |
20090033236 | Programmed ballast with resonant inverter and method for discharge lamps - A ballast having a rapid inverter frequency control circuit that is used for programmed operation during lamps starting, during normal operation of all lamps and during no lamp(s) operation. A method and circuit controls frequency shift via a combination of different feedback circuits. A control signal for the inverter controller is synthesized as a sum of phase shifted inverter output voltage feedback signal and lamp current sense signal indicating status of each lamp connected to the ballast output. | 02-05-2009 |
20090302775 | MULTI-LAMPS INSTANT START ELECTRONIC BALLAST - The electronic ballast comprises a series half bridge resonant inverter and a control circuit for the inverter with dimming capability. The inverter includes a first and a second voltage feedback circuits including first and a second charge pumps coupled in between inverter output and the dimming input of the control circuit. The feedback circuits generate a reference control signal to control operation after starting and an error control signals when the inverter output voltage exceeds a predetermined value. | 12-10-2009 |
20110043122 | Resonant Inverter With Sleep Circuit - A sleep circuit for use in a resonant inverter is disclosed. The sleep circuit activates a “sleep mode” (non-continuous operation) when the inverter output has no connected load, or a connected load is non-operative (e.g., fails). The “sleep mode” utilizes hysteresis control via the under voltage lockout protection feature of a control IC of the inverter. A primary DC source permanently connects to the Vcc pin of the control IC for startup (on) and burst (non-continuous) operation modes. An auxiliary DC source connects to the Vcc pin via a switch for continuous operation mode. A load current sensor controls the switch. When a sensed output current is above a threshold level, the switch connects the auxiliary DC source, and the control IC (and the inverter) operates continuously. When the sensed output current falls below the threshold, the auxiliary DC source is not provided and the inverter operates in “sleep mode”. | 02-24-2011 |
20120236611 | POWER LINE CURRENT FED POWER SUPPLIES PRODUCING STABLE LOAD CURRENTS AND RELATED METHODS - Power line current fed power supplies producing stable load currents and related methods are described. The power supplies may include a current transformer coupled to an inductive network. In some embodiments, the current transformer operates in saturation mode. In some embodiments, a substantially constant DC current is generated having a magnitude that remains substantially constant despite variations of the magnitude of AC current in the power line. | 09-20-2012 |
20140145613 | ARRANGEMENTS AND METHODS FOR TRIAC DIMMING OF GAS DISCHARGE LAMPS POWERED BY ELECTRONIC BALLASTS - An apparatus for powering and TRIAC dimming of a gas discharge lamp includes an electronic ballast for powering a gas discharge lamp from a TRIAC based dimmer connected to an AC line, an EMI filter for protecting the AC line from EMI generated by the ballast and the lamp, a DC bus without a smoothing electrolytic capacitor, a resonant DC-to-AC inverter connected to the DC bus for powering the gas discharge lamp with a high frequency current, wherein an auxiliary DC-to-DC power supply input is connected to the DC bus and a first resonant tank having in series a first resonant inductor and a first resonant capacitor, wherein the gas discharge lamp is connected in parallel to the resonant capacitor. | 05-29-2014 |
20140145614 | Electronic Ballast Having Improved Power Factor and Total Harmonic Distortion - An electronic ballast for driving a gas discharge lamp includes an EMI filter, a bridge rectifier coupled to a DC bus without a conventional electrolytic capacitor, a passive valley fill circuit built as a network having 4 charge/discharge energy storage capacitors and 9 diodes (4C9C), and a resonant DC to AC high frequency inverter for powering gas discharge lamp. The 4C9D circuit divides the rectified peak voltage by four and the low output voltage of the circuit is used to provide continuous lamp operation. The result is a ballast having substantially improved power factor, total harmonic distortion, and current crest factor. The electronic ballast is provided with a dimming capability from a TRIAC based wall dimmer. | 05-29-2014 |