Television – Receiver circuitry
Patent
1997-04-25
1999-11-16
Tung, Bryan
Television
Receiver circuitry
348726, 340461, 358160, 358183, 358188, H04N 544, H04N 5455
Patent
active
059867205
ABSTRACT:
A mobile television receiver includes a TV tuner demodulating an incoming TV signal into a first video signal. A first horizontal sync signal is separated from the first video signal. Detection is made as to a quality of an image represented by the first video signal. A second horizontal sync signal is generated. Detection is made as to a difference between a phase of the first horizontal sync signal and a phase of the second horizontal sync signal. The phase of the second horizontal sync signal is controlled in response to the detected phase difference between the first horizontal sync signal and the second horizontal sync signal so that the second horizontal sync signal will be locked in phase and frequency to the first horizontal sync signal. A memory unit stores the first video signal in response to a memory control signal, and outputs the stored first video signal as a second video signal. The memory control signal is generated in response to the detected image quality. The second video signal is displayed in response to the second horizontal sync signal.
REFERENCES:
patent: 4038689 (1977-07-01), Rzeszewski et al.
patent: 4249213 (1981-02-01), Imaide et al.
patent: 4984082 (1991-01-01), Okamura
patent: 5018015 (1991-05-01), Sunada et al.
patent: 5105273 (1992-04-01), Hyakutake
patent: 5289167 (1994-02-01), Kurosawa et al.
patent: 5467142 (1995-11-01), Ichinokawa
patent: 5497205 (1996-03-01), Yang et al.
patent: 5550596 (1996-08-01), Strolle et al.
patent: 5703662 (1997-12-01), Yoon
patent: 5777693 (1998-07-01), Kishigami et al.
Hasegawa Makoto
Kanaya Masanobu
Kishigami Takaaki
Mimura Masahiro
Nakamura Masahiko
Matsushita Electric - Industrial Co., Ltd.
Tung Bryan
Vo Tung
LandOfFree
Mobile television receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mobile television receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mobile television receiver will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1330860