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Class Information
Number: 348/518
Name: Television > Synchronization > Locking of video or audio to reference timebase > Including compensation for transmission delays
Description: Subject matter wherein the change in time or phase take into account the time or phase shifts caused during transmission through a channel.

Sub-classes under this class:

Class Number Class Name Patents
348/519 Color television 15

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8711886 Transmitting a synchronizing signal in a packet network Apr. 29, 2014
8677437 Systems and methods for calculating the delay between media signals Mar. 18, 2014
8643781 Display interface methods and systems Feb. 4, 2014
8549569 Alternative audio content presentation in a media content receiver Oct. 1, 2013
8531375 Display device Sep. 10, 2013
8531603 System and method for in-band A/V timing measurement of serial digital video signals Sep. 10, 2013
8525885 Systems and methods for metering audio and video delays Sep. 3, 2013
8493307 Display device Jul. 23, 2013
8456531 Video alignment and calibration for video quality measurement Jun. 4, 2013
8436939 AV delay measurement and correction via signature curves May. 7, 2013
8436938 Device and method for receiving data transmitted by means of an asynchronous data transmission technique May. 7, 2013
8421927 Display device and color adjustment method for display device Apr. 16, 2013
8406288 Methods for reducing channel change times in a digital video apparatus Mar. 26, 2013
8345160 Synchronous signal conversion circuit, signal processing system including it, and synchronous signal conversion method Jan. 1, 2013
8330859 Method, system, and program product for eliminating error contribution from production switchers with internal DVEs Dec. 11, 2012
8300147 System and method for in-band A/V timing measurement of serial digital video signals Oct. 30, 2012
8294820 Video signal synchronization signal generating apparatus and video signal synchronization signal generation method Oct. 23, 2012
8264499 Enhancing viewability of information presented on a mobile device Sep. 11, 2012
8253855 Automatic luminance-chrominance delay compensation Aug. 28, 2012
8184723 Feedback system and apparatus for video compensation May. 22, 2012
8174619 Reception apparatus and method of controlling image output by reception apparatus May. 8, 2012
8164689 Synchronizing signal control circuit and synchronizing signal control method Apr. 24, 2012
8144824 Trend influenced time tracking Mar. 27, 2012
8072542 Sampling device, display device using sampling device, and camera Dec. 6, 2011
8064470 Transmitting recorded material Nov. 22, 2011
7982803 Audio and video synchronizing apparatus and method Jul. 19, 2011
7948559 Method and apparatus for lipsync measurement and correction May. 24, 2011
7907216 Display apparatus and control method thereof to selectively decrease a processing time of an image signal Mar. 15, 2011
7809452 Delay management of presentation output system and method Oct. 5, 2010
7773152 Method, system, and program product for eliminating error contribution from production switchers with internal DVEs Aug. 10, 2010
7688324 Interactive set-top box having a unified memory architecture Mar. 30, 2010
7672573 Shared memory architecture and method in an optical storage and recording system Mar. 2, 2010
7643018 Twisted pair communications line system Jan. 5, 2010
7565061 Transmitting and recording method, reproducing method, and reproducing apparatus of information and its recording medium Jul. 21, 2009
7502546 Method and apparatus for digitally recording and synchronously retrieving a plurality of video signals Mar. 10, 2009
7499104 Method and apparatus for determining relative timing of image and associated information Mar. 3, 2009
7480008 Video apparatus and method for controlling the same Jan. 20, 2009
7440035 Cable extending device Oct. 21, 2008
7423693 Video delay stabilization system and method Sep. 9, 2008
7348992 Apparatus for and method of color compensation Mar. 25, 2008
7333150 Method, system, and program product for eliminating error contribution from production switchers with internal DVEs Feb. 19, 2008
7212248 Method and apparatus for lipsync measurement and correction May. 1, 2007
7212247 Audio/video system providing variable delay May. 1, 2007
7209178 Optical transfer system having a transmitter and a receiver Apr. 24, 2007
RE39345 Audio/Video/Computer graphics synchronous reproducing/synthesizing system and method Oct. 17, 2006
7075584 Buffer system for controlled and timely delivery of MPEG-2 data services Jul. 11, 2006
7061547 Image displaying system of environment-adaptive type, image processing method and program Jun. 13, 2006
7020894 Video and audio synchronization Mar. 28, 2006
6947069 Method and apparatus for connecting fiber optic lines to an information transmission line carrying two way signals Sep. 20, 2005
6909468 Positional difference correcting apparatus between two-route videos Jun. 21, 2005

1 2 3

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