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7633552 |
Self-calibrating timing circuits for use in a sync separator
Provided herein are self-calibrating timing circuits and methods for use in a sync separator. A comparator compares a video signal to a video reference voltage to produce a sliced sync signal that...
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7580078 |
Sync separator apparatus
An input video signal is inputted into a first clamp circuit, and then inputted into a second clamp circuit as a clamped video signal so as to be inputted into a switch circuit. The second clamp...
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7576771 |
Method and apparatus of providing video synchronization
Video control signals are received at a video input port of a system. A determination is made whether the video control signals are valid or invalid. When video control signals represent a valid...
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7570305 |
Sampling of video data and analyses of the sampled data to determine video properties
A method, an apparatus, and a carrier medium carrying code to implement the method. The method includes accepting blindly video samples of at least one video signal representing lines of video. At...
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7557864 |
Video signal judgment circuit
A video signal judgment circuit for judging the condition of a video signal compounded of a picture signal and a synchronization signal is provided. The video signal judgment circuit is adapted to...
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7522216 |
Video synchronization signal detection circuit
A video synchronization signal detector for detecting occurrences of single and double frequency synchronization signal pulses present during a vertical synchronization interval.
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7508453 |
Synchronization signal processor
A video data stream containing picture video and a vertical synchronization signal is processed in a microprocess that performs statistical evaluation of the frequency of the vertical...
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7480009 |
Synchronization signal detection in a digital television receiver
A digital television (DTV) receiver is provided, comprising: a demodulator that demodulates television signals and outputs equalizer training signals in the form of real (I) and imaginary (Q) data;...
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7460174 |
Apparatus and method for detecting synchronization signal of data signal utilizing synchronization symbols
A synchronization signal detector includes: a first circuit configured to delay the data signal by a period of at least one data segment of the data signal to generate a delayed signal; a second...
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7456903 |
Video signal processing circuit
A video signal processing circuit is supplied with an analog composite video signal formed by combining at least a luminance signal with a sync signal, and processes the analog composite video...
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7423694 |
Self-calibrating timing circuits for use in a sync separator
Provided herein are self-calibrating timing circuits and methods for use in a sync separator. A comparator compares a video signal to a video reference voltage to produce a sliced sync signal that...
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7417687 |
Video synchronization signal removal circuitry
A video synchronization signal removal circuit in which a synchronization signal component of an incoming video signal is detected whereupon a reference signal corresponding to a black video level...
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RE40412 |
Synchronizing signal separating apparatus and method
The present invention provides a synchronizing signal separation. In accordance with the present invention, a sync pulse processing circuitry slices a video signal and senses the peaks of the...
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7349032 |
Circuit to resize and enlarge an image signal and resizing and enlargement method for an image signal
The invention provides an image processing circuit having a capability of performing a reduction (resizing) process and an enlargement process on horizontal-scanning-line data inputted in...
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7345714 |
Video signal clamp
A circuit and method for clamping a composite video component signal at the video black level by using horizontal synchronization timing information contained within the signal and clamping the...
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7312793 |
Liquid crystal display controller
In a liquid crystal television, a display controller prevents burning of a liquid crystal panel due to irregularity in a synchronization signal. A counter of a liquid crystal display controller...
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7295248 |
External synchronous signal generating circuit and phase difference measuring circuit
An external synchronous signal circuit comprises: means for measuring a phase difference between the external frame synchronous signal (FRM_SYNC) and the frame synchronous signal (FRM) of the...
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7283176 |
Method and system for detecting field ID
Methods and systems for determining fields in a video signal are disclosed. Historic field ID values for a received video signal may be stored and subsequently utilized by a summer and/or a...
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7260149 |
Digital data transmission apparatus, digital data reception apparatus, digital broadcast reception apparatus, digital data transmission method, digital data reception method, digital broadcast reception method, and computer program
A multiplexer 106 conducts time division multiplexing on various data trains input from a digital broadcast reception tuner 103 and various interfaces 104 and 105 while adding packet...
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7253844 |
Method and arrangement for synchronising on-screen display functions during analog signal reception
A method and an arrangement are disclosed for synchronizing on-screen display functions during analog signal reception in a terminal arrangement that is capable of receiving both digital and analog...
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7250980 |
Automatic detection of sync polarity in video timing and generation of blanking period indicator from sync information
The present invention relates to a system and method for generating a blanking period indicator signal from sync information in video timing. The invention comprises an auto polarity detect...
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7215379 |
Alternative video sync detector
A circuit for generating video synchronization timing signals includes a negative peak detector (FIG. 5 ) for following variations of a composite video signal (FIG. 1 ), rather than clamping the...
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7190407 |
System, method and apparatus for sandcastle signal generation in a television signal processing device
A system, method and apparatus are provided for generating 98 a sandcastle signal in a television signal receiver 90 , and utilizing the sandcastle signal during television signal processing. In...
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7110620 |
Apparatus for processing digital image and method therefor
An apparatus which processes a digital image and a method therefor which can reduce an error when calculating an output value obtained by interpolating pixel values of the input digital image. The...
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7002635 |
Method for superimposing pictures
In the case of picture insertions, such as picture-in-picture, for example, fluctuations in the line duration are manifested in position displacements relative to the desired position of the...
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6972803 |
Video signal format detector and generator system and method
A video processing system and method are provided for generating clock and timing signals from an incoming video signal. The system includes a timing reference circuit for generating a reference...
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6917387 |
Arrangement for time-correct combination of two data streams
Methods and apparatus are described for time-correct combination of two data streams, particularly video data streams. In this case, a sync signal of the first video data stream is a horizontal...
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6882360 |
Method and apparatus for determining a level of a video signal
A method for estimating a level of a predetermined portion of a video signal comprising the steps of determining a location of the predetermined portion of the video signal, sampling the video...
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6816631 |
Calculations of coordinates of target image displayed on monitor screen
Coordinates of a target are calculated by measuring time between the generation of a vertical synchronizing signal fetched from a composite signal for displaying the target image on a video monitor...
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6795124 |
External synchronization system using composite synchronization signal and camera system using the same
When a composite synchronization signal is used as a synchronization signal provided from an external source, since the period of the composite synchronization signal is irregular, it is impossible...
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6766382 |
Method of information transfer using optical zones
A method of transmitting data from a host computer to a portable information device is disclosed. Optical pulses are displayed by illuminating an area of pixels, or optical zone, on a display...
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6654065 |
Apparatus for generating timing and synchronizing signals for a digital display device
A standard signal processing apparatus for a digital display that is adaptive for a digital display device. In the apparatus, a synchronizing signal/image signal separator separates an input signal...
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6606410 |
Method and apparatus for detecting a synchronous signal
A method for detecting a synchronous signal contained in an input image signal is provided. In the method, horizontal and vertical periods are established during which horizontal and vertical...
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6529248 |
Method and apparatus for improved signal restoration
A method and/or apparatus is capable of performing high accuracy digital level restoration with a high degree of noise immunity provided by a passive clamping stage.
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6529175 |
Stereoscopic LCD shutter glass driver system
The preferred embodiment a stereoscopic LCD shutter glass driver system requires only a total of 3 CMOS integrated circuit chips in order to convert horizontal and vertical sync signals into LCD...
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6519304 |
Circuitry operative on selected symbol slicing results for synchronizing data fields in a digital television receiver
A digital television signal receiver includes a bin amplitude comparator for symbol decoding and match filtering to recover data synchronizing information from selected bin amplitude comparator...
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6504578 |
Apparatus and method for detecting vertical synchronizing signal of digital TV
An apparatus and method for detecting a vertical synchronizing signal in a digital TV receiver using a VSB system is disclosed. The present invention includes a vertical obtaining the correlation...
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6456332 |
Device for generating sync signals of composite video signal
A device which generates horizontal and vertical sync signals of a composite signal to create a soft picture on a display monitor by preventing a free running effect of a composite signal which is...
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6424379 |
Vertical synchronization separation circuit
A vertical synchronization separation circuit eliminates distortion in a television picture produced when the synchronization signal is complex and includes a copy guard signal.
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6380980 |
Method and apparatus for recovering video color subcarrier signal
An embodiment of the present invention provides a signal generator for generating a signal with a predetermined frequency. The signal generator includes a first comparator for generating a first...
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6369856 |
Synchronous signal detection circuit and method
A synchronous signal detection circuit which detect a vertical synchronous signal and a horizontal synchronous signal from composite synchronous signal, including: a reset generation means for...
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6271888 |
Method for obtaining line synchronization information items from a video signal, and apparatus for carrying out the method
A method for obtaining line synchronization information items from a video signal is proposed. To that end, the following improvement measures are proposed: a) an accurate determination of the...
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6262766 |
Method for assessing the quality of a television image
A method assesses the quality of a television image. In diversity reception installations including several receivers, it is necessary to establish a criterion for selecting the receiver with the...
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6259485 |
Sync separating circuit
A level is preset into a counter. The level held in the counter is compared with the minimum value of the present video signal by a level detecting circuit. When the minimum value of the present...
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6230270 |
Integrated circuit identification system
An improved integrated circuit including decryption functions employs a method for determining if its environment has been modified, by providing a first VCXO as part of the integrated circuit,...
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6175391 |
Digital TV receiver
Digital TV receiver including an antenna, a tuner for synchronizing one of a plurality of digital TV signals received at the antenna, the digital TV signal having data streams, and each data stream...
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6169581 |
Phase-locked sync stripper
A method and circuit to strip the composite synchronization (sync) from a composite video signal is disclosed. This invention utilizes a phase-locked loop and a switchable input operational...
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6144413 |
Synchronization signal detection and phase estimation apparatus and method
A digital television (DTV) receiver receives a data signal that is divided into a plurality of segments each separated by a known data segment sync sequence. The receiver includes a data segment...
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6133959 |
Device and method for detecting sync signal from digital TV signal
Method and device for detecting a synchronizing signal from a digital T.V. signal is disclosed. An initial value is stored as a maximum value in each of memories arranged to match to symbols...
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6104435 |
Apparatus and method for generating data segment sync signal for HDTV
An apparatus for generating a sync signal of a data segment in a high definition television is disclosed including: a circuit (41) for delaying and integrating received data segment signals in the...
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