Class 348/501 - Reprocessing

Subclass of Class 348 - Television
Definition: Subject matter including means for extracting, processing,
No. of patents: 36
Last issue date: 09/11/2007

Number	Title	Issue Date
7268827	Circuit for transferring a timing signal between circuits having different clock frequencies A timing signal transferring circuit (10) that may be arranged to stably transfer a timing signal (S1) between two video signal processing circuits that may operate at different clock frequencies has been disclosed. A first timing signal (S1) ma...	09/11/2007
7206030	Fast-convergence two-stage automatic gain control (AGC) Disclosed are methods and systems for automatic gain control (AGC) in circuits. The disclosed methods and systems provide accurate and rapidly converging automatic gain control suited for video applications. According to disclosed preferred embodiments of the invent...	04/17/2007
7193657	Video signal processing apparatus and integrated circuit Disclosed is a video signal processing apparatus comprising a plurality of line memories to which in sequence input video signal data is written on a line-by-line basis; a timing controller for controlling a timing to write video signal data to the plurality of line...	03/20/2007
7100209	Method to provide the generation of an incorrect or unreliable vertical/frame rate signal Techniques for modifying the characteristic signals of the Vertical Blanking Interval (VBI) are disclosed for the generation of an incorrect or unreliable vertical or frame rate signal, via particular characteristics and/or peculiarities of the signals in the VBI. T...	08/29/2006
7071994	System and method for nondisruptively embedding an OFDM modulated data signal into a composite video signal A method and system for sending and receiving binary bit stream in a composite video signal, such as a NTSC signal. The binary bit stream is modulated according to quadrature amplitude modulation, converted to analog and translated to an intermediate frequency relat...	07/04/2006
7034722	ADC calibration to accommodate temperature variation using vertical blanking interrupts In digital display circuitry, configured to display an image encoded in an analog display signal, the digital display circuitry includes analog-to-digital converter (ADC) circuitry to recover pixel data elements of the image. During vertical blanking intervals of th...	04/25/2006
6999057	Timing of fields of video An apparatus and method to delay a field of video by one row in a two field frame to reduce DC build-up or stick caused by textual image. ...	02/14/2006
6980216	Graphics driver and method with time partitioning A graphics driver and method is provided that facilitates graphics rendering time partitioning to provide improved resource allocation between multiple windows and/or multiple graphics clients. The graphics driver receives high level graphics data from multiple grap...	12/27/2005
6959046	Resynchronization method for decoding video The present invention relates to a method of resynchronization that attempts to enable a resynchronization of a compressed video data signal received by a decoder, after a transmission error has been detected in said compressed video data signal. The method o...	10/25/2005
6950150	Method and a processor for processing two digital video signals clocked by respective clock signals of identical frequency but with a constant phase shift therebetween A method and a processor for processing two digital video signals clocked by respective clock signals of identical frequency but with a constant phase shift therebetween. Standard definition and progressive scan digital video signals which are clocked at first and s...	09/27/2005
6947060	Image forming apparatus, electron beam apparatus, modulation circuit, and image-forming apparatus driving method An image forming apparatus which performs pulsewidth modulation with a pulsewidth set by counting a clock. Especially, for grayscale level correction by setting the frequency of the clock, the periodic clock is counted, and an output pattern is changed in accordance...	09/20/2005
RE38618	Method and apparatus for automatic pixel clock phase and frequency correction in analog to digital video signal conversion A method for producing a digital video signal from an analog video signal, the analog video signal including an analog video data signal that is raster scanned in lines across a CRT screen to form consecutive frames of video information, the raster scanning controll...	10/12/2004
6545721	Video retiming through dynamic FIFO sizing A method and apparatus for retiming video. Vertical synchronization information (VSI) is detected in an incoming video stream. A VSI is also detected in both as output video stream and a reference video stream. Based on the difference between the VSI of t...	04/08/2003
6331875	Method and device for arranging digitized image signals or data in orthogonal rows and columns Television receivers are increasingly making use of digital signal processing. Present-day television receivers use a line-coupled clock system in this case, since this produces an orthogonal pixel array for signal processing on the picture screen. The di...	12/18/2001
6229579	Color encoder with chrominance subcarrier generator responsive to a plurality of clock rates or frequencies A color encoder is incorporated in an apparatus for reproducing a signal recorded on a disk for a video-CD, CD-G, or similar system. The color encoder serves as an interface between such an apparatus and a television receiver. The color encoder has a colo...	05/08/2001
6172716	Video processing circuit Improved circuitry for adjusting the video gain, black level, chroma gain and burst phase of a video signal includes composite to Y/C splitter, luminance processing section, sync separator and chroma processor. Unity and split mode selection is provided. ...	01/09/2001
6167048	Clock recovery for video communication over ATM network A method of clock recovery from a fast packet switched asynchronous network wherein a time stamp is transmitted over a network that has variable delay, involves maintaining an input counter at a sending device. The counter has a value dependent on an inpu...	12/26/2000
6084642	Receiver for adjusting sync levels in VSB systems A receiver for receiving a cable and terrestrial digital signals of differing VSB modes where the data levels of the various signals have a desired relationship that enables simple data level slicing and error determination. Some of the signals have sync ...	07/04/2000
6018367	Frame display dilation in video decoding A method and apparatus in a computer system for decoding and displaying video frames. An estimated number of intraframes which can be decoded in a current interframe run is determined. Based upon the estimated number of intraframes, determining an adjuste...	01/25/2000
5923377	Jitter reducing circuit A sync signal correction circuit generates a corrected sync signal which is obtained by correcting a timing of a sync signal on the basis of a time axis variation component (jitter component) of the sync signal separated from a picture signal. The correct...	07/13/1999
5907367	Video overlay circuit for synchronizing and combining analog and digital signals A video/graphics overlay circuit receives an analog input composite video signal and a digital input composite video signal and combines them into a linear combination output composite video signal depending on the state of one or more mixer control signa...	05/25/1999
5815212	Video overlay circuit for synchronizing and combining analog and digital signals A video/graphics overlay circuit receives an analog input composite video signal and a digital input composite video signal and combines them into a linear combination output composite video signal depending on the state of one or more mixer control signa...	09/29/1998
5767914	Video frame grabber comprising analog video signals analysis system In a video frame grabber for digitizing analog video signals which have a pure analog video signal component and a synchronisation signal component, the synchronisation signals are digitized along with the pure analog video signals. Video gain and offset,...	06/16/1998
5488481	Apparatus for generating a composite video signal A digital recording/reproducing apparatus having an external input digital interface is disclosed. A changeover switch is controlled by a changeover control circuit for selecting horizontal synchronizing signals generated by horizontal synchronizing gener...	01/30/1996
5440593	Combined aligner blender The present invention relates to a method of aligning and blending input digital samples, comprised of delaying the input samples by a clock pulse, to provide delayed data samples, subtracting a smaller fractional part from a larger fractional part of eit...	08/08/1995
5146336	Sync control for video overlay A video sync control circuit for controlling the stable synchronization of the display of locally generated signals on a TV screen in the presence or in the absence of a received signal which includes a sync signal. The circuit is comprised of apparatus f...	09/08/1992
5003391	Circuitry for processing a synchronizing signal Circuitry for processing, in a television signal, a first, low-frequency synchronizing signal on which a second, high-frequency synchronizing signal is superposed, for supplying standardized television signal capable of being processed by a customary tele...	03/26/1991
4860099	Video signal processing circuit for VTR system A video signal processing circuit for a VTR system is disclosed. In a special playback mode such as "STILL", "SLOW" and "QUICK" modes, a pseudo vertical synchronizing signal is supplied which has a train of pulses at a predetermined cycle proportional to ...	08/22/1989
4816907	Television synchronizing signal pattern correction circuit A television synchronizing signal pattern correction circuit has a change-over switch (23) which can supply a vertical synchronizing signal (V') obtained from an input (13) or from an output (17) of a delay circuit (15). The change-over switch (23) is ope...	03/28/1989
4803552	Vertical blanking interval standardizer circuit A vertical blanking interval standardizer circuit detects the vertical synchronization interval of a video signal and generates a vertical block sync pulse which replaces a serrated vertical sync signal in which the pulse spacing has been modified in a no...	02/07/1989
4583119	Signal interface circuit A synchronizing signal interface circuit for a television monitor comprises two exclusive-NOR gates G1 and G2 which function as controllable inverters. Line and field sync. signals applied at respective input terminals T1 and T2 are fed to signal inputs S...	04/15/1986
4543608	Video tape recorder R.F. signal processor A circuit for changing or improving the picture characteristics or quality sent from home consumer video tape recorders to television receivers by processing the radio frequency signals feeding such receivers after they have left the video tape recorder....	09/24/1985
4467358	Video tape recorder signal processor A circuit for reinserting full vertical sync pulse width back into a composite video signal which has been especially modified to contain a narrower, or weaker, vertical sync pulse so as to make video tape recording of this modified video signal difficult...	08/21/1984
4065790	Video processing amplifier providing black level correction An improved video processing amplifier includes means for correcting for any black level distortion present in a composite video signal input for restoring the black level to a substantially undistorted video signal black level. The composite blanking and...	12/27/1977
4028729	Provision and display of video signals Apparatus for providing visible video information has equipment for providing electrical video information including picture signals and picture synchronizing signals affected by flutter, and equipment for processing synchronizing signals. This processing...	06/07/1977
3995112	Television synchronizing pulse generating system A generator system for producing advanced mixed synchronizing pulses and comprising an equalizing pulse detector capable of detecting the presence of a first equalizing pulse of a mixed synchronizing pulse received at its input and a broad pulse generator...	11/30/1976

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Class 348/501 - Reprocessing