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Class 348/526 - Field or frame identification


Subclass of Class 348 - Television
Definition: Subject matter wherein the apparatus detects a field or
No. of patents: 75
Last issue date: 11/29/2011


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NumberTitleIssue Date
8068175Method for detecting interlaced material and field order
Field order in a sequence of video frames is determined based on magnitude or relative motion of a motion vector between a bottom field of a current frame and a top field of a next frame, and magnitude or relative motion of a motion vector between a top field of the...
11/29/2011
7701512System and method for improved horizontal and vertical sync pulse detection and processing
We describe and claim a system and method for horizontal and vertical sync detection and processing. A method comprises detecting synchronization information within a video signal, estimating stability of the video signal according to the detected synchronization in...
04/20/2010
7443920Frame-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 on a frame-by-frame basis. A digitized signal representative of a wir...
10/28/2008
7333545Digital video decoding, buffering and frame-rate converting method and apparatus
A decoder decodes full frame MPEG-2 video by a single method that applies regardless of buffer memory and frame rate conversion considerations. A display control module handles frame rate and field sequence in response to host configuration, trick play command signa...
02/19/2008
7324162Method and apparatus to improve ADC dynamic range in a video decoder
A video decoder in which 1) resolution quality can be improved for a given bit count analog-to-digital converter, 2) a lower bit count analog-to-digital converter can be used with substantially similar quality or 3) a combination of improved resolution quality with ...
01/29/2008
7283176Method 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 correlator in order to estimate a field ID value for a current field. The su...
10/16/2007
7277581Method 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 compared. In another respect, embodiments of the invention provide pattern...
10/02/2007
7257508Timing generator, and timing generating method
There is provided a timing generator that outputs a second periodic signal having a desired phase difference to a first periodic signal by superimposing a voltage on a control voltage of a voltage-controlled oscillating unit of a PLL circuit for generating the secon...
08/14/2007
7215380Method 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 of the frame type resulting from excessive field difference and impr...
05/08/2007
7193657Video 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
7154555Automatic deinterlacing and inverse telecine
A video apparatus is provided with automatic deinterlacing and inverse telecine pre-filtering capability to automatically analyze the frames of the video to determine at least whether the video is one of telecine, non-telecine progressive and non-telecine interlaced...
12/26/2006
7072392Equalizer for time domain signal processing
A digital equalizer comprises a matched filter that, in conjunction with an FIR filter, assures a single peak with substantially greater energy than other peaks caused by ghosts, thereby permitting synchronization even with multiple, arbitrarily strong ghosts caused...
07/04/2006
7068325Video 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 is input. When a non-standard signal is input as an input video signal...
06/27/2006
7046301Vertical synchronous signal detection circuit
A vertical synchronous signal detection circuit includes an analog-digital converter, an average calculation circuit and a compare circuit. The analog-digital converter receives a composite video signal and converts the video signal into a digital signal having a ve...
05/16/2006
7023489Method 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 successive values of a parity bit are updated according to the successive ...
04/04/2006
7023491Method and device for displaying frozen pictures on video display device
A method and apparatus for constructing a frozen picture to be displayed on a display device in a video data decoding system; the apparatus and method including the steps of receiving video data to be spatially and temporally reconstructed in the decoding system, fi...
04/04/2006
7009661Video 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 to every vertical synchronous signal thus detected, and outputs a firs...
03/07/2006
7009604Frame 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 different pulse durations detected within a first field of a composi...
03/07/2006
7010046Method and/or architecture for implementing MPEG frame display using four frame stores
An apparatus comprising a decode frame store, a B frame store, a first anchor frame store, and a second anchor frame store. The decode frame store may be configured to decode one or more free frames and generate one or more B video images and one or more anchor vide...
03/07/2006
6992727Method for detecting video frame types with adaptive thresholds
A method for detecting dynamic video pixels by using adaptive counter threshold values according to field difference value of the frame in the video, thereby to determine whether the frame is an interlaced frame or a progressive frame and to eliminate incorrect judg...
01/31/2006
6967687Display control apparatus and method
A display control apparatus and a display control method are provided in which a resolution of an input image signal is judged, a change in the image signal is detected, and the image signal is adaptatively interpolated in accordance with the judgement and detection...
11/22/2005
6950144Apparatus 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. The method includes determining whether or not an input synchronizat...
09/27/2005
6947060Image 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
6839094Method and apparatus for eliminating motion artifacts from video
A method and apparatus for detecting and correcting motion artifacts in interlaced video signal converted for progressive video display. A correction is applied where interlaced video material is determined to originate from film source, thereby having been converte...
01/04/2005
6798921Method 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 same time the information about the image characteristic quantity of ...
09/28/2004
6774950Displaying 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 determined state. ...
08/10/2004
6728965Channel 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 to the synchronization frames. When a subscriber's channel change re...
04/27/2004
6727957External 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 to the invention, in a timing control circuit for separating a horiz...
04/27/2004
6720998Device 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, an interface unit for inserting either a frame sync pattern between fr...
04/13/2004
6661855Circuit 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 received signal and a reference signal and a generator for g...
12/09/2003
6621527Digital 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 filter receptive of rectified samples of digitized intermed...
09/16/2003
6567097Display 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 hand, when video data is even field data, interlaced data for ...
05/20/2003
6529248Method 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....
03/04/2003
6519298Circuit 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 received signal and a reference signal and a generator for g...
02/11/2003
6469745Image 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 fields of the telecinema signal and a duplicate field rem...
10/22/2002
6226044Field 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 FLIR sensor are utilized and there is outputted a vertical ...
05/01/2001
6211974Laboratory system, method of controlling operation thereof, playback apparatus and method, film image management method, image data copying system and method of copying image data
Images of film that has been developed are captured by image sensing. The original digital image data is converted to reduced digital image data representing images that are reduced in size and stored on a user's disk, and the original digital image data ...
04/03/2001
6160589Video 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 portion of any video composite synchronization signal conne...
12/12/2000
6144413Synchronization 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 sync signal detector that receives the data signal and filte...
11/07/2000
6118491System 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 converts the encoded data stream into a sequence of frames. ...
09/12/2000
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