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Document Title |
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7532252 |
Video mode detection circuit
A video signal mode detector for automatically detecting and indicating the type of video signal being received in terms of its video signal characteristics, including horizontal line count and...
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7443920 |
Frame-based carrier frequency and phase recovery system and method
Header information is used to facilitate coarse frequency and frame recovery. The coarse frequency and frame recovery is thereafter utilized to perform adaptive phase and frequency synchronization...
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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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7277581 |
Method for video format detection
The invention provide methods and code for better detecting 3:2 pulldown or other video formats. In one respect, embodiments of the invention improve the way in which fields of video data are...
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7215380 |
Method for detecting video frame types with median filtering
The invention relates to a method for detecting video frame types with median filtering, which proceeds a denoising step after calculating the comb factor of each pixel, to avoid incorrect judgment...
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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...
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7068325 |
Video signal processor and video signal processing method
The present invention relates to a video signal processing device for avoiding a phenomenon that noise is upwardly or downwardly shifted due to noise reducing operation when a non-standard signal...
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7023489 |
Method and device for detecting the parity of successive fields of an interlaced video signal
Successive values of a horizontal phase of a video signal are determined a predetermined integer number of video lines after the successive occurrences of vertical synchronization pulses. The...
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7009661 |
Video signal detecting circuit for adjusting sync signals with a mean difference of the number of pixels from a standard
A video signal detecting circuit includes a synchronization detector for detecting a vertical synchronous signal in an input video signal. A counter starts counting pixel clock pulses in response...
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7009604 |
Frame detector for use in graphics systems
One embodiment of a method of frame detection may involve storing data indicative of a pulse duration and a number of successive occurrences of pulses having that pulse duration for each of several...
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6950144 |
Apparatus and method of controlling image display
An apparatus and a method of controlling image display in an image display apparatus having a panel and wherein an image output is synchronized to a frame synchronization signal of an input signal....
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6798921 |
Method for image designating and modifying process
Images in a plurality of related images are processed such that a specific region of the image in the first frame is designated and a specific image in the specific region is modified while at the...
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6774950 |
Displaying video images
Displaying video images includes determining which of at least two video field polarities a video display is in a state to display and choosing a stored video field for display based on the...
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6728965 |
Channel changer for use in a switched digital video system
A rapid channel changer for use in a digital broadband access system. The subject rapid channel changer includes a cache buffer for storing the video data and a processor for detecting and pointing...
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6727957 |
External synchronizing system and camera system using thereof
When a field is determined by using a counter, a number of gates are needed in fabricating the counter and accordingly, the circuit scale is magnified and high cost formation is resulted. According...
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6720998 |
Device for managing snap shot in USB camera and method therefor
Device and method for managing a snap shot in a USB camera, the device including a camera for taking, and digitizing an image, and providing the image through an end point exclusive for an image,...
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6661855 |
Circuit for discriminating between received signals and method therefor
A circuit for discriminating between received signals and a method therefor are provided. The circuit includes a detector for detecting a peak signal based on the degree of correlation between a...
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6621527 |
Digital receiver with match filter responsive to field synchronization code in the final I-F signal envelope
A radio receiver for receiving a selected digital TV signal uses final intermediate frequency signals the carrier frequencies of which are multiples of symbol rate. The radio receiver has a match...
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6567097 |
Display control apparatus
When video data is odd field data, interlaced data for an even field consisting of all black even line data is appended to that video data by an interlaced data appending circuit. On the other...
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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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6469745 |
Image signal processor for detecting duplicate fields
An image signal processor is provided which accurately detects duplicate fields of a telecinema signal. The image signal processor includes a duplicate field detecting means for detecting duplicate...
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6226044 |
Field synchronization system and technique
A field synchronization system of a field detect circuit adaptable for use with non-standard output digital data of forward looking infrared (FLIR) sensors. Timing signals and digital data from a...
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6160589 |
Video frame detector readily adaptable to video signal formats without manual programming and method for same
A video frame detector circuit used in synchronizing one video signal with another video signal. The video frame detector of the present invention is able to automatically detect a start of frame...
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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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6118491 |
System and method for enforcing interlaced field synchronization in the presence of broken alternation in an MPEG video datastream
A system and method for synchronizing a decoded, interlaced-field data stream with an interlaced field display. A system for displaying an MPEG encoded data stream includes an MPEG decoder which...
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6100935 |
Sync generator unit and field decision unit using it
A field decision unit capable of solving a problem involved in a conventional field decision unit in that an internal synchronizing signal can be erroneously synchronized with the equalizing pulses...
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5955618 |
Circuit for generating field identification signal and method therefor
A field identification signal generating circuit for a receiver for receiving a high-definition signal, and a method therefor. According to the method, a first correlation value is calculated,...
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5912713 |
Display control apparatus using display synchronizing signal
A horizontal synchronizing signal is applied as a reference signal and a voltage-controlled oscillator outputs a display clock signal on the basis of the frequency of the horizontal synchronizing...
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5903324 |
Transport processor interface for a digital television system
A transmitted high definition television signal is represented by a packetized datastream configured as a sequence of data fields with a non-uniform data rate due to different types of different...
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5877816 |
Apparatus and method for detecting field sync signals and generating useable field sync signals in a high definition television receiver
An apparatus for detecting a field sync signal in a HDTV includes a sign bit selector for selecting only a sign bit from a received HDTV signal; a correlation portion for determining the...
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5734443 |
Method and device for performing source transitions in a video system which performs entropy encoding
A method and device for performing source transitions in a video system which performs entropy encoding such that a transition occurs only after the fields which define a frame picture have been...
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5619275 |
TV line and field detection apparatus with good noise immunity
An auxiliary video information decoder for decoding information such as closed caption data in a video signal identifies a desired horizontal line of video in a video signal. A reference pulse in a...
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5608461 |
Programmable video frame detector
A synchronizing device is described. The synchronizing device detects a video frame. The synchronizing device determines a duration of a first signal state of a video signal, determines a duration...
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5583574 |
Video-data transmitter, video-data receiver, and video-data transceiver for connecting parallel video-data into serial video-data and vice versa
A video data transmitter includes: chrominance-data multiplexer which multiplexes parallel data obtained by digitizing a chrominance signal Pb, which is a component signal of an analog HDTV video...
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5502501 |
Field type detector for video signal
Jitter of an overlay display with respect to the primary display of a television receiver is avoided by assuring that the vertical and horizontal blanking signal components are sufficiently time...
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5485220 |
Sync stripper circuit
A sync stripper circuit receives from a medical imaging modality a composite video signal with a horizontal sync frequency within one of first, second, third or fourth frequency ranges. The sync...
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5483538 |
Audio frame synchronization for embedded audio demultiplexers
Audio frame synchronization for embedded audio demultiplexers counts the number of audio samples for each video frame of a digital video signal. The pattern of audio samples per video frame for an...
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5479604 |
Image processing apparatus which provides an indication of whether an odd or an even field is displayed
An ODD/EVEN signal, showing whether odd fields or even fields of the image are displayed on a screen, is supplied to each unit operating for data transmission. In accordance with the ODD/EVEN...
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5473387 |
Field decision circuit
The field decision circuit includes: a field information generating circuit for outputting one of a plurality of signals as a first field information for each field in response to a pulse signal; a...
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5452011 |
Method and device for film-mode detection and field elimination
A method for determining which of similar video fields may be excised to enhance video signal compression evaluates parameters of four successive fields denoted 0, 1, 2, and 3. Accumulated...
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5442405 |
Frame synchronizing circuit for frame synchronization of digital signals
A frame synchronizing apparatus is disclosed which includes a serial-parallel converter for converting input serial data into parallel data of a plurality of channels; a plurality of intra-channel...
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5420640 |
Memory efficient method and apparatus for sync detection
A receiver is provided for receiving a digital data stream over a communication path. The digital data is arranged as a sequence of frames, each frame including a plurality of lines of data. The...
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5369444 |
Field type matching system
First and second field type detectors for first and second video signals have outputs indicating whether the video signals have first or second field types. The first video signal is synchronized...
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5365280 |
Method and apparatus for discriminating between movie film and non-movie film and generating a picture signal processing mode control signal
In a method of controlling a picture signal processing mode, first and second motion vectors are determined (ME, D T ) for first and second fields, and a picture signal processing mode control...
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5327175 |
Circuit for detecting odd and even fields of a video signal
A circuit for detecting odd and even numbered fields of a video signal includes a first counter circuit for counting a clock pulse input to detect a vertical synchronous pulse interval of the video...
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5247359 |
Field decision circuit for providing error free odd/even field information
Field information for a predetermined number of fields produced by another field judgment circuit is stored in a first memory. The output of the field decision circuit which is indicative of the...
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5175620 |
Synchronism detecting circuit utilizing pulse width
A synchronizing detecting circuit removing video and audio noises by discriminating the non-broadcasting channels from the broadcasting channels. The synchronizing detecting circuit has a first...
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5157492 |
Sync validity detecting utilizing a microcomputer
A tuning system includes a microcomputer-based synchronization signal detector which does not require the use of a hardware timer/counter. The microcomputer samples the output signal of a sync...
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5025496 |
Odd/even field detector for video signals
In a video signal processing system apparatus for differentiating between video field types includes circuitry for measuring an interval between a vertical signal component and a predetermined...
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5012339 |
Field discrimination circuit
A field discrimination circuit for use in a television receiver, which includes a shift register for shifting an input vertical synchronizing signal so as to produce n (n≥6) pseudo vertical...
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