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Class Information
Number: 348/540
Name: Television > Synchronization > Automatic phase or frequency control > Horizontal sync component
Description: Subject matter wherein the sync signal components are horizontal sync.

Sub-classes under this class:

Class Number Class Name Patents
348/541 Cascaded phase or frequency adjusting 39
348/546 Countdown 24
348/542 Plural distinct operating modes 68

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8624979 Monitoring apparatus for television Jan. 7, 2014
8576970 Phase-locked loop Nov. 5, 2013
8564722 Horizontal synchronization signal detection system and method Oct. 22, 2013
8558911 Display control device Oct. 15, 2013
8502919 Video display device and video display method Aug. 6, 2013
8451376 Automatic gain control (AGC) for analog TV signals using feed-forward signal path delay May. 28, 2013
8451378 Video device capable of detecting connection to display devices May. 28, 2013
8400567 Method for recovering pixel clocks based on internal display port interface and display device using the same Mar. 19, 2013
8379149 Display apparatus and control method thereof Feb. 19, 2013
8332518 Bidirectional communication protocol between a serializer and a deserializer Dec. 11, 2012
8310595 Phase determination for resampling video Nov. 13, 2012
8253858 Multimedia device capable of detecting connection status of external display devices Aug. 28, 2012
8253805 Horizontal synchronization detection device Aug. 28, 2012
8245072 Signal transmission system and control method therefore Aug. 14, 2012
8237861 Video horizontal synchronizer Aug. 7, 2012
8189109 Digital image converting apparatus with auto-correcting phase and method thereof May. 29, 2012
8164689 Synchronizing signal control circuit and synchronizing signal control method Apr. 24, 2012
8115868 Data recovery device and data recovery method for television signals Feb. 14, 2012
8115871 Video top-of-frame signal generator for multiple video formats Feb. 14, 2012
8107008 Method and system of automatically correcting a sampling clock in a digital video system Jan. 31, 2012
8102471 H-sync phase locked loop device and method for a TV video signal Jan. 24, 2012
8102470 Video synchronization system Jan. 24, 2012
8089526 Circuit for processing video signal Jan. 3, 2012
8068081 Driver for driving display panel and method for reading/writing in memory thereof and thin film transistor liquid crystal display using the same Nov. 29, 2011
8068177 Methods and devices for signal synchronization Nov. 29, 2011
8059200 Video clock generator for multiple video formats Nov. 15, 2011
7948556 Electronic apparatus and display control method May. 24, 2011
7817207 Image signal processing device Oct. 19, 2010
7773153 Frame-based phase-locked display controller and method thereof Aug. 10, 2010
7742045 System and method for an enhanced analog video interface Jun. 22, 2010
7701512 System and method for improved horizontal and vertical sync pulse detection and processing Apr. 20, 2010
7697067 Digital video processing systems and methods for estimating horizontal sync in digital video signals Apr. 13, 2010
7663697 Sync-threshold adjust Feb. 16, 2010
7586543 System and method for overlay of a motion video signal on an analog video signal Sep. 8, 2009
7583322 Television and adjustment method for the same Sep. 1, 2009
RE40675 Method and apparatus for automatic pixel clock phase and frequency correction in analog to digital video signal conversion Mar. 24, 2009
7505055 Method and apparatus for auto-generation of horizontal synchronization of an analog signal to a digital display Mar. 17, 2009
7480007 Display system and method of converting sync signal thereof Jan. 20, 2009
7471338 Synchronous image signal data generator Dec. 30, 2008
7443450 Sync processor of flat panel display for determining signal safety on the basis of HSYNC/VSYNC signal generated according to data enable signal Oct. 28, 2008
7432980 Method for reducing analog PLL jitter in video application Oct. 7, 2008
7345714 Video signal clamp Mar. 18, 2008
7321398 Digital windowing for video sync separation Jan. 22, 2008
7312793 Liquid crystal display controller Dec. 25, 2007
7295248 External synchronous signal generating circuit and phase difference measuring circuit Nov. 13, 2007
7271843 Method and apparatus for analyzing a digitally converted analogue signal Sep. 18, 2007
7209135 Image display apparatus Apr. 24, 2007
7184096 Method and circuit for providing a horizontal scan signal for a television set Feb. 27, 2007
7180550 Video reproducing apparatus and method and apparatus and method for adjusting horizontal synchronous signal Feb. 20, 2007
7173668 Equilibrium based horizontal sync detector for video decoder Feb. 6, 2007

1 2 3 4 5

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