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Class Information
Number: 348/536
Name: Television > Synchronization > Automatic phase or frequency control
Description: Subject matter including a means for automatically controlling the time or phase of an oscillating signal in response to sync signal components.


Sub-classes under this class:

Class Number Class Name Patents
348/540 Horizontal sync component 173
348/537 Of sampling or clock 270
348/549 Using color subcarrier 44
348/547 Vertical sync component 57


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
7440702 Method for transmitting digital image signal, digital image transmitting device, digital image sending device and digital image receiver Oct. 21, 2008
7436456 Video device and method for synchronising time bases of video devices Oct. 14, 2008
7432980 Method for reducing analog PLL jitter in video application Oct. 7, 2008
7391416 Fine tuning a sampling clock of analog signals having digital information for optimal digital display Jun. 24, 2008
7355652 Inverse tracking over two different clock domains Apr. 8, 2008
7327400 Automatic phase and frequency adjustment circuit and method Feb. 5, 2008
7327401 Display synchronization signal generation apparatus and method in analog video signal receiver Feb. 5, 2008
7321398 Digital windowing for video sync separation Jan. 22, 2008
7312833 Channel equalizing apparatus and method for digital television receiver Dec. 25, 2007
7298916 Image signal processing apparatus and method Nov. 20, 2007
7295248 External synchronous signal generating circuit and phase difference measuring circuit Nov. 13, 2007
7277133 Adjusting pixel clock Oct. 2, 2007
7271844 Frame signal phase adjuster Sep. 18, 2007
7268825 Digital synchronizing generator Sep. 11, 2007
7209135 Image display apparatus Apr. 24, 2007
7209178 Optical transfer system having a transmitter and a receiver Apr. 24, 2007
7199834 Vertical synchronizing signal generation apparatus and video signal processing apparatus Apr. 3, 2007
7193596 Display apparatus with reduced noise emission and driving method for display apparatus Mar. 20, 2007
7139040 Method to correct non-periodic index event time-of-arrival data in a synchronization system Nov. 21, 2006
7136109 Self-adjusting pixel clock and method therefor Nov. 14, 2006
7095446 Method and device for phase correction of a vertically distorted digital image Aug. 22, 2006
7091996 Method and apparatus for automatic clock synchronization of an analog signal to a digital display Aug. 15, 2006
7061541 Apparatus and method for compensating a color carrier of an image signal Jun. 13, 2006
7015973 Method and apparatus for generating coast signal for image processing Mar. 21, 2006
7009628 Method and apparatus for auto-generation of horizontal synchronization of an analog signal to a digital display Mar. 7, 2006
7002634 Apparatus and method for generating clock signal Feb. 21, 2006
6980255 VSB modulator symbol clock processing to reduce jitter/phase noise and sampling artifacts Dec. 27, 2005
6956618 Apparatus and method for processing image, and an image processing program Oct. 18, 2005
6943844 Adjusting pixel clock Sep. 13, 2005
6933937 Pixel clock PLL frequency and phase optimization in sampling of video signals for high quality image display Aug. 23, 2005
6924796 Dot-clock adjustment method and apparatus for a display device, determining correctness of dot-clock frequency from variations in an image characteristic with respect to dot-clock phase Aug. 2, 2005
6922188 Method and apparatus for auto-generation of horizontal synchronization of an analog signal to a digital display Jul. 26, 2005
6912012 Video decoder having lock algorithm that distinguishes between a noisy television signal input and a video recorder signal Jun. 28, 2005
6891572 Video signal conversion processing apparatus and method May. 10, 2005
6856358 Phase-increase induced backporch decrease (PIBD) phase recovery method for video signal processing Feb. 15, 2005
6839092 Feed forward error correction in video decoder Jan. 4, 2005
6831634 Image processing device Dec. 14, 2004
6829014 Frequency bounded oscillator for video reconstruction Dec. 7, 2004
6829003 Sampling pulse generator of electronic endoscope Dec. 7, 2004
6822692 Digital filter Nov. 23, 2004
RE38618 Method and apparatus for automatic pixel clock phase and frequency correction in analog to digital video signal conversion Oct. 12, 2004
6765563 Monolithic integrated circuit implemented in a digital display unit for generating digital data elements from an analog display signal received at high frequencies Jul. 20, 2004
6753926 Circuit for generating sampling clock to stably sample a video signal and display apparatus having the circuit Jun. 22, 2004
6744472 Graphics display system with video synchronization feature Jun. 1, 2004
6738104 Robust color wheel phase error method for improved channel change re-lock performance May. 18, 2004
6731349 Tuner with at least a first and a second frequency band May. 4, 2004
6693628 Method and device for monitoring a setting of a phase in flat screens Feb. 17, 2004
6686929 Broadband switching drive compensating circuit for a video display device Feb. 3, 2004
6678408 Noise reduction through comparative histograms Jan. 13, 2004
6674482 Apparatus for generating sync of digital television Jan. 6, 2004

1 2 3 4 5 6


 
 
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