Television – Synchronization – Locking of video or audio to reference timebase
Reexamination Certificate
2007-06-05
2007-06-05
Natnael, Paulos (Department: 2622)
Television
Synchronization
Locking of video or audio to reference timebase
Reexamination Certificate
active
10847122
ABSTRACT:
A graphics integrated circuit chip is used in a set-top box for controlling a television display. The graphics chip processes analog video input, digital video input, graphics input and audio input simultaneously. The system includes a video decoder having a chroma-locked sample rate converter. The chroma-locked sample rate converter converts the samples to those taken at a sample rate that is a multiple of the chroma subcarrier frequency and that is locked to chroma bursts of the analog video signal in a control loop. The video decoder also includes a line-locked sample rate converter that receives samples at a multiple of the chroma subcarrier frequency and converts the samples to samples with a sample frequency that is a multiple of the horizontal line rate of the video input. The line-locked sample rate converter measures the horizontal line rate to an accuracy of a fraction of a pixel and adjusts the sample rate and phase of the line-locked sample rate converter to produce accurate line-locked samples. The time base corrector receives samples at the output of the line-locked sample rate converter and provides samples synchronized to the display clock for reducing undesirable artifacts such as jitter.
REFERENCES:
patent: 4020332 (1977-04-01), Crochiere et al.
patent: 4367466 (1983-01-01), Takeda et al.
patent: 4412294 (1983-10-01), Watts et al.
patent: 4481594 (1984-11-01), Staggs et al.
patent: 4532547 (1985-07-01), Bennett
patent: 4679040 (1987-07-01), Yan
patent: 4688033 (1987-08-01), Carini et al.
patent: 4727365 (1988-02-01), Bunker et al.
patent: 4751446 (1988-06-01), Pineda et al.
patent: 4799053 (1989-01-01), Van Aken et al.
patent: 4908780 (1990-03-01), Priem et al.
patent: 4959718 (1990-09-01), Bennett
patent: 5003299 (1991-03-01), Batson et al.
patent: 5039983 (1991-08-01), Yoon
patent: 5043714 (1991-08-01), Perlman
patent: 5065231 (1991-11-01), Greaves et al.
patent: 5097257 (1992-03-01), Clough et al.
patent: 5142273 (1992-08-01), Wobermin
patent: 5146592 (1992-09-01), Pfeiffer et al.
patent: 5148417 (1992-09-01), Wong et al.
patent: 5155816 (1992-10-01), Kohn
patent: 5200738 (1993-04-01), Fumoto et al.
patent: 5243447 (1993-09-01), Bodenkamp et al.
patent: 5250928 (1993-10-01), Kuriki
patent: 5254981 (1993-10-01), Disanto et al.
patent: 5258747 (1993-11-01), Oda et al.
patent: 5262854 (1993-11-01), Ng
patent: 5287178 (1994-02-01), Acampora et al.
patent: 5301332 (1994-04-01), Dukes
patent: 5307177 (1994-04-01), Shibata et al.
patent: 5319742 (1994-06-01), Edgar
patent: 5327125 (1994-07-01), Iwase et al.
patent: 5335074 (1994-08-01), Stec
patent: 5371547 (1994-12-01), Siracusa et al.
patent: 5371877 (1994-12-01), Drako et al.
patent: 5384912 (1995-01-01), Ogrinc et al.
patent: 5396567 (1995-03-01), Jass
patent: 5398211 (1995-03-01), Willenz et al.
patent: 5402181 (1995-03-01), Jenison
patent: 5418535 (1995-05-01), Masucci et al.
patent: 5422858 (1995-06-01), Mizukami et al.
patent: 5430465 (1995-07-01), Sabella et al.
patent: 5432769 (1995-07-01), Honjo
patent: 5432900 (1995-07-01), Rhodes et al.
patent: 5434683 (1995-07-01), Sekine et al.
patent: 5434957 (1995-07-01), Moller
patent: 5467144 (1995-11-01), Saeger et al.
patent: 5469223 (1995-11-01), Kimura
patent: 5471411 (1995-11-01), Adams et al.
patent: 5475400 (1995-12-01), Sellers et al.
patent: 5479606 (1995-12-01), Gray
patent: 5488385 (1996-01-01), Singhal et al.
patent: 5515077 (1996-05-01), Tateyama
patent: 5526054 (1996-06-01), Greenfield et al.
patent: 5532749 (1996-07-01), Hong
patent: 5533182 (1996-07-01), Bates et al.
patent: 5539891 (1996-07-01), Childers et al.
patent: 5546103 (1996-08-01), Rhodes et al.
patent: 5550594 (1996-08-01), Cooper et al.
patent: 5570296 (1996-10-01), Heyl et al.
patent: 5574572 (1996-11-01), Malinowski et al.
patent: 5577187 (1996-11-01), Mariani
patent: 5583575 (1996-12-01), Arita et al.
patent: 5592601 (1997-01-01), Kelley et al.
patent: 5598525 (1997-01-01), Nally et al.
patent: 5598545 (1997-01-01), Childers et al.
patent: 5600364 (1997-02-01), Hendricks et al.
patent: 5600379 (1997-02-01), Wagner
patent: 5604514 (1997-02-01), Hancock
patent: 5610983 (1997-03-01), Stewart
patent: 5614952 (1997-03-01), Boyce et al.
patent: 5615376 (1997-03-01), Ranganathan
patent: 5619270 (1997-04-01), Demmer
patent: 5619337 (1997-04-01), Naimpally
patent: 5621478 (1997-04-01), Demmer
patent: 5621869 (1997-04-01), Drews
patent: 5621906 (1997-04-01), O'Neill et al.
patent: 5623311 (1997-04-01), Phillips et al.
patent: 5625611 (1997-04-01), Yokota et al.
patent: 5625764 (1997-04-01), Tsujimoto et al.
patent: 5635985 (1997-06-01), Boyce et al.
patent: 5638499 (1997-06-01), O'Connor et al.
patent: 5638501 (1997-06-01), Gough et al.
patent: 5640543 (1997-06-01), Farrell et al.
patent: 5664162 (1997-09-01), Dye
patent: 5687306 (1997-11-01), Blank
patent: 5694143 (1997-12-01), Fielder et al.
patent: 5696527 (1997-12-01), King et al.
patent: 5701365 (1997-12-01), Harrington et al.
patent: 5706415 (1998-01-01), Kelley et al.
patent: 5706482 (1998-01-01), Matsushima et al.
patent: 5708457 (1998-01-01), Otake et al.
patent: 5708764 (1998-01-01), Borrel et al.
patent: 5719593 (1998-02-01), De Lange
patent: 5727192 (1998-03-01), Baldwin
patent: 5737455 (1998-04-01), Harrington et al.
patent: 5742779 (1998-04-01), Steele et al.
patent: 5742796 (1998-04-01), Huxley
patent: 5745095 (1998-04-01), Parchem et al.
patent: 5748178 (1998-05-01), Drewry
patent: 5751979 (1998-05-01), McCrory
patent: 5754186 (1998-05-01), Tam et al.
patent: 5758177 (1998-05-01), Gulick et al.
patent: 5761516 (1998-06-01), Rostoker et al.
patent: 5764238 (1998-06-01), Lum et al.
patent: 5764243 (1998-06-01), Baldwin
patent: 5765010 (1998-06-01), Chung et al.
patent: 5774110 (1998-06-01), Edelson
patent: 5790134 (1998-08-01), Lentz
patent: 5790136 (1998-08-01), Hoffert et al.
patent: 5790795 (1998-08-01), Hough
patent: 5790842 (1998-08-01), Charles et al.
patent: 5793384 (1998-08-01), Okitsu
patent: 5793445 (1998-08-01), Lum et al.
patent: 5802579 (1998-09-01), Crary
patent: 5812210 (1998-09-01), Arai et al.
patent: 5815137 (1998-09-01), Weatherford et al.
patent: 5818533 (1998-10-01), Auld et al.
patent: 5828383 (1998-10-01), May et al.
patent: 5831615 (1998-11-01), Drews et al.
patent: 5838296 (1998-11-01), Butler et al.
patent: 5838389 (1998-11-01), Mical et al.
patent: 5844608 (1998-12-01), Yu et al.
patent: 5847717 (1998-12-01), Berry
patent: 5854761 (1998-12-01), Patel et al.
patent: 5864345 (1999-01-01), Wickstrom et al.
patent: 5867166 (1999-02-01), Myhrvold et al.
patent: 5874967 (1999-02-01), West et al.
patent: 5877754 (1999-03-01), Keith et al.
patent: 5877817 (1999-03-01), Moon
patent: 5883670 (1999-03-01), Sporer et al.
patent: 5889949 (1999-03-01), Charles
patent: 5894300 (1999-04-01), Takizawa
patent: 5894526 (1999-04-01), Watanabe et al.
patent: 5896136 (1999-04-01), Augustine et al.
patent: 5903261 (1999-05-01), Walsh et al.
patent: 5903281 (1999-05-01), Chen et al.
patent: 5907295 (1999-05-01), Lin
patent: 5907635 (1999-05-01), Numata
patent: 5909559 (1999-06-01), So
patent: 5914725 (1999-06-01), MacInnis et al.
patent: 5914728 (1999-06-01), Yamagishi et al.
patent: 5920572 (1999-07-01), Washington et al.
patent: 5920842 (1999-07-01), Cooper et al.
patent: 5923316 (1999-07-01), Kitamura et al.
patent: 5923385 (1999-07-01), Mills et al.
patent: 5926647 (1999-07-01), Adams et al.
patent: 5929872 (1999-07-01), Greene
patent: 5940080 (1999-08-01), Ruehle et al.
patent: 5940089 (1999-08-01), Dilliplane et al.
patent: 5948082 (1999-09-01), Ichikawa
patent: 5949432 (1999-09-01), Gough et al.
patent: 5949439 (1999-09-01), Ben-Yoseph et al.
patent: 5951664 (1999-09-01), Lambrecht et al.
patent: 5953691 (1999-09-01), Mills
patent: 5956041 (1999-09-01), Koyamada et al.
patent: 5959626 (1999-09-01), Garrison et al.
patent: 5959637 (1999-09-01), Mills et al.
patent: 5961603 (1999-10-01), Kunkel et al.
patent: 5963201 (1999-10-01), McGreggor et al.
patent: 5963222 (1999-10-01), Cheney et al.
patent: 5963262 (1999-10-01), Ke et al.
patent: 5973955 (1999-10-01), Nogle et al.
patent: 5977933 (1999-11-01), Wicher et al.
pa
Kranawetter Greg A.
MacInnis Alexander G.
Patterson James T.
Tang Chengfuh Jeffrey
Xie Xiaodong
Broadcom Corporation
McAndrews Held & Malloy Ltd.
Natnael Paulos
LandOfFree
Graphics display system with video synchronization feature does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Graphics display system with video synchronization feature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Graphics display system with video synchronization feature will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3840349