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Class Information
Number: 348/546
Name: Television > Synchronization > Automatic phase or frequency control > Horizontal sync component > Countdown
Description: Subject matter including a resetting divider for controlling the phase or time of the oscillating signal in response to the horizontal sync.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7528671 |
Timing generator |
May. 5, 2009 |
| 7312793 |
Liquid crystal display controller |
Dec. 25, 2007 |
| 6177959 |
Circuit and method for generating a clock signal synchronized with time reference signals associated with television signals |
Jan. 23, 2001 |
| 6130718 |
Method and device for correcting errors in the opening of time windows for recovering data with horizontal synchronization pulses |
Oct. 10, 2000 |
| 6049358 |
Counter control circuit for controlling counter having a pulse period measuring function |
Apr. 11, 2000 |
| 6005634 |
Method and apparatus for controlling the display of a video image |
Dec. 21, 1999 |
| 5844622 |
Digital video horizontal synchronization pulse detector and processor |
Dec. 1, 1998 |
| 5502502 |
PLL-based method and apparatus for generating video drive signals from various sync formats |
Mar. 26, 1996 |
| 5495294 |
Synchronising signal generator |
Feb. 27, 1996 |
| 5121086 |
PLL including static phase error responsive oscillator control |
Jun. 9, 1992 |
| 4908582 |
AFC circuit for producing a ripple-free oscillator control voltage |
Mar. 13, 1990 |
| 4843469 |
Rapid signal acquisition and phase averaged horizontal timing from composite sync |
Jun. 27, 1989 |
| 4835611 |
Timing signal generator for a video signal processor |
May. 30, 1989 |
| 4833371 |
Picture display device with symmetrical deflection |
May. 23, 1989 |
| 4812783 |
Phase locked loop circuit with quickly recoverable stability |
Mar. 14, 1989 |
| 4737849 |
Process and a periodic instant regeneration circuit |
Apr. 12, 1988 |
| 4689582 |
Phase-lock-loop circuit for a television apparatus |
Aug. 25, 1987 |
| 4654604 |
Frequency controlled oscillator utilizing an U/D counter in the feedback |
Mar. 31, 1987 |
| 4598234 |
Digital image correction circuit for cathode ray tube displays |
Jul. 1, 1986 |
| 4578705 |
Digital circuit for synchronizing a pulse train |
Mar. 25, 1986 |
| 4520394 |
Horizontal scanning frequency multiplying circuit |
May. 28, 1985 |
| 4476490 |
Horizontal scanning frequency multiplying circuit |
Oct. 9, 1984 |
| 4417218 |
Linearizing circuit for a high frequency voltage controlled oscillator |
Nov. 22, 1983 |
| 4335403 |
Horizontal countdown system for television receivers |
Jun. 15, 1982 |
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