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5499294 |
Digital camera with apparatus for authentication of images produced from an image file
A digital camera equipped with a processor for authentication of images produced from an image file taken by the digital camera is provided. The digital camera processor has embedded therein a...
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5497198 |
Circuit for converting HDTV signals into conventional TV signals with the letter box mode
A high definition television signal conversion circuit using a side cut mode or a letter box mode. The conversion circuit using the side cut mode comprises an A/D converter for converting a high...
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5495296 |
Digital signal processing circuit for filtering an image signal vertically
In order to thin an input signal a second multiplexer is switched to output an output of a first adder and a third multiplexer is switched to output an output of a second adder, and a first...
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5493338 |
Scan converter of television receiver and scan converting method thereof
A method and apparatus is provided for increasing scanning line numbers for TV video signal utilizing a three dimensional medial filter. The method and apparatus inhibit the picture quality from...
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5488410 |
System and method for disk software publishers to control disk distribution
A system for allowing software publishers to control which video standard(s) can be recovered from an optical disk containing video source material. The disk may be digitally encoded so that any of...
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5485216 |
Video format conversion apparatus for high definition television
A video format conversion apparatus for a high definition television comprising a decoding circuit for decoding a transmitted, encoded signal into a video signal, a frame rate conversion circuit...
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5475436 |
Sampling rate converting system for converting the sampling rate of a video signal
A plurality of circuit blocks that output digital signals with different sampling frequencies are connected to data buses in common. One of outputs of the circuit blocks is selected and the output...
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5475437 |
Double scan circuit for inserting a new scan line between adjacent scan lines of a television
A double scan circuit has first and second data converters for converting n-bit real line data and n-bit interpolated line data into 2n-bit data; first and second RAMs in which the real line data...
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5473382 |
Video signal converting apparatus for converting an interlace video signal into a non-interlace video signal for reduction
A method of converting and displaying scan lines for displaying interlace video signals permitting television or the like, represented by the NTSC standard, on a non-interlace display apparatus,...
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5473381 |
Apparatus for converting frame format of a television signal to a display format for a high definition television (HDTV) receiver
An apparatus for converting a frame format of a television signal to a display format includes a scanning format conversion circuit for converting a scanning format of an input video signal to a...
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5469216 |
Apparatus and method for processing a digital video signal to produce interpolated data
Apparatus and method for processing a digital video signal having an inner block of pixel data that represents an image spatially located within an outer block of pixel data. A class code of the...
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5459525 |
Video signal converting device and noise eliminator used therein
An apparatus for converting an input video signal to a modified video signal comprises a memory for storing data corresponding to the input video signal, an address signal generating device for...
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5455627 |
Programmable video output format generator
A programmable video output format (VOF) generator that enables a processing system to drive different video display devices with varying video format requirements. The programmable VOF generator...
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5453792 |
Double video standards converter
A double standards converter for converting video signals formatted according to a first standard having a slower frame rate to a second standard having a faster frame rate prior to intermediate...
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5446496 |
Frame rate conversion with asynchronous pixel clocks
A frame rate conversion system synchronizes data transfers to and from a VRAM frame buffer which are concurrent, continuous, and asynchronous. The system comprises a frame buffer having a split...
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5444491 |
Television system with multiple transmission formats
A television receiver for receiving and decoding a transmitted television signal, wherein the television signal comprises a succession of encoded image frames encoded in transmission formats...
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5442409 |
Motion vector generation using interleaved subsets of correlation surface values
A system for generating motion vectors from image data calculates correlation surface values representing image correlation between temporally adjacent images. The system provides a stream of...
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5442460 |
Unidirectional format signal converter
A television signal format converter is provided for converting without loss of picture information any high definition television format to or from a given recorder/player format. An interface...
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5440342 |
Logic system and method for controlling any one of different charge coupled device image sensors to provide video image signals in accordance with a television standard
Apparatus and method for controlling a charge coupled device (CCD) image sensor provides in accordance with a television standard horizontal and vertical CCD control signals. The apparatus includes...
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5410358 |
Method and device for frame interpolation of a moving image
Apparatus and method for forming an interpolated image corresponding to a given temporal distance ratio between a first and a second image including respectively, a first image in which the first...
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5410354 |
Method and apparatus for providing compressed non-interlaced scanned video signal
A compression/decompression system includes a source of (1:1 60 Hz) non-interlaced scanned video signal. A preprocessor constructs (2:1 60 Hz) interlaced scanned video signal from the...
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5404171 |
Method and apparatus for synchronizing digital packets of information to an arbitrary rate
A method and apparatus for synchronizing sequence of digital information packets is disclosed. The sequence of digital information packets is provided from a digital information source at a source...
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5400077 |
System for generating multiple aspect ratio video signals from motion picture disk recorded in a single aspect ratio
A system for generating a video signal in a selected one of multiple aspect ratios from play of a disk on which is recorded a motion picture in only one aspect ratio. The disk includes a code...
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5389923 |
Sampling rate converter
In a sampling rate converter for converting a sampling frequency L of a digital signal to a sampling frequency M (L:M conversion) or for converting a sampling frequency M of a digital signal to a...
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5384598 |
System and method for frame differencing video compression and decompression with frame rate scalability
A system and method of compressing original video data expressed in a plurality of digitally coded frames which enable decompression and playback of resulting compressed video data at one of a...
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5381183 |
Motion-adaptive scanning-line conversion circuit
A motion-adaptive scanning-line conversion circuit which converts part or the entirety of a first video signal into a second video signal. The circuit includes a data reducing circuit, such as a...
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5379072 |
Digital video signal resolution converting apparatus using an average of blocks of a training signal
A digital video signal converting apparatus for converting a first digital video signal having a first resolution to a second digital video signal having a second resolution higher than the first...
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5373375 |
Metric conversion mechanism for digital images in a hierarchical, multi-resolution, multi-use environment
A mechanism for facilitating metric conversion of digitized images intended for use with a multi-resolution, multi-application environment is integrated into the encoding and decoding mechanisms of...
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5369447 |
Video image filtering
A video image filtering system is described which utilises multi-tap filters (70). In order to reduce the effects of edge distortion due to the finite size of the input image, extension data is...
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5361135 |
Magnetic tape recording and reproducing apparatus for digital signals of still pictures in the pal system
To record and reproduce appropriately video signals of PAL system as still picture in a magnetic tape recording and reproducing apparatus. As still picture data, video signals for one field or two...
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5351087 |
Two stage interpolation system
A two stage interpolation system provides greater bandwidth for signals compressed and expanded by interpolation, for example video signals displayed in a zoom or enlarged mode. A finite impulse...
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5351088 |
Image display apparatus for displaying images of a plurality of kinds of video signals with asynchronous synchronizing signals and a timing correction circuit
In an image display apparatus including a display unit for displaying an image of an inputted video signal thereon with a predetermined field frequency and a predetermined number of scanning lines...
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5341178 |
Send-out convertors for a recording/reproducing system
A first recording/reproducing unit 1, a second recording/reproducing unit 2 and a third recording/reproducing unit 3 are interconnected by a routing switch 4 to which is connected a bit rate...
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5339164 |
Method and apparatus for encoding of data using both vector quantization and runlength encoding and using adaptive runlength encoding
A method is disclosed of encoding location information pertaining to a source position signal characterized by positions of a set of selected coefficients, ordered in at least one dimension, there...
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5339109 |
Apparatus for interpolating scanning lines of TV signal in TV
An apparatus for interpolating scanning lines of a TV signal in a TV, comprising a scanning line interpolator for discriminating vertical, horizontal and diagonal edge patterns of a received video...
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5337153 |
Image transforming device for changing frame frequencies of a video image
An image transforming device transforms images by transforming video signals into a spatial frequency range, by frame-interpolating the transformed signals in the spatial frequency range and by...
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5335074 |
Phase locked loop synchronizer for a resampling system having incompatible input and output sample rates
A video signal conversion system converts input video signals in a studio format, such as CCIR 601 (625/25), into output video signals in another format, such as the Phase Alternate Line (PAL)...
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5334998 |
Method and apparatus for utilizing blanking on both zero setup and pedestal setup display monitors with a conventional computer system
In a computer system having a frame buffer, apparatus for providing an overlay for the frame buffer, and a digital-to-analog converter for furnishing analog signals from the frame buffer to a...
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5331346 |
Approximating sample rate conversion system
A sample rate conversion system converts from an input sample rate stream having a predetermined input sample rate to an output sample stream having a predetermined output sample rate by...
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5327125 |
Apparatus for and method of converting a sampling frequency according to a data driven type processing
A sampling frequency converting apparatus includes an input port converting an input image data (X) into a data packet, a data driven engine executing interpolation on the data packet applied from...
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5327240 |
Methods, systems and apparatus for providing improved definition video
A method is provided for deinterlacing pixels in a video display system operable to display images as a plurality of pixels arranged in first and second fields of interlaced rows, at least one...
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5327235 |
Video conversions of video signal formats
A digital video signal is real-time converted from a high definition format (such as 1250 lines, 50 field/s, 2:1 interlace, with a 16:9 aspect ratio) to a conventional definition format (such as...
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5317398 |
Video/film-mode (3:2 pulldown) detector using patterns of two-field differences
A film/video detector includes circuitry for generating the differences between corresponding pixel values in successive frames of video signal. These differences are accumulated over respective...
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5315385 |
Inverting the phase of the carrier of a first signal on a line-by-line basis to prevent co-channel interference with a second independently transmitted signal
The proposed method of broadcasting television signals is such that the phase of the carrier signal as modulated with the video signal is shifted through 180° from one line to the next within a...
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5315617 |
QAM encoding for high-definition television system
An encoding scheme resistant to transmission errors encodes a data bitstream for application to a quadrature amplitude modulator (QAM) in a high definition television system. The error-resistant...
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5311317 |
Video signal processing apparatus for displaying stored video signal during channel selection
A video signal processing apparatus in which a video signal channel-selected and received by a tuner is supplied through a switch to a video output circuit and a signal from the video output...
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5309233 |
Apparatus for converting the scanning period of a video signal to a period not necessarily an integer times the original period
A general scanning-period converting device is equipped with two frame memories (first and second frames), and a video signal is written in any one of the frame memories (e.g., first memory) at a...
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5309227 |
Video signal processing system for electronic endoscope
A video signal processing system for electronic endoscope, employing a high-sensitivity solid-state image sensor device having an approximately doubled sensitivity along with improved dynamic range...
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5307165 |
Television signal kind discriminating apparatus
A television signal kind discriminating apparatus discriminates an input television signal in a short time between a MUSE signal having a three-value type horizontal synchronizing signal and a...
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5305112 |
Video signal recording/reproducing system for recording and reproducing video signals in high quality picture television system
A video signal recording and reproducing system enables recording and reproducing of a video signal with high quality. The system includes a recording system for recording the video signal on a...
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