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WO/1991/001613A1 |
The method of the present invention operates upon the imaging signals from a color filter array image sensor to compress the image signals prior to color interpolation by separating the signals into three color planes. Missing green pixe...
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WO/1991/001072A1 |
Process and system for broadcasting a high-definition television programme on a channel with capacity below the signal band. The process includes: at the transmission stage, a pseudo-selection of the image dividing the spatial informatio...
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WO/1990/014732A1 |
Additional information may be transmitted in the active picture period of a video signal by providing the lines of the signal which carry the additional information with a black reference at a higher level than usual (4) thus avoiding vi...
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WO/1990/013876A1 |
Disclosed is a digital data processing system for scanning, compressing, storing, decompressing, and displaying digital video data (Fig. 3), e.g., full motion video sequences such as those from a color television sequence or still photog...
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WO/1990/013980A1 |
A high definition B-MAC television signal transmission system comprises a scan converter and a signal pre-processor for accepting signals in various high definition formats. In particular, an 1125 line or 1050 line to 525 line scan conve...
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WO/1990/013969A1 |
A video signal with 1250 lines, line interlacing and 100 Hz picture frequency, transcoded from a video signal with 1250 lines, line interlacing and 50 Hz picture frequency is free from extensive flickering. However, interferences due to ...
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WO/1990/013210A1 |
Owing to transmission with meshing spectra, crosstalk interference occurs in colour television systems which to some extent rather adversely affect the image quality. It is known to undertake three-diemsional filtering on the transmissio...
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WO/1990/013203A1 |
Existing colour TV transmission systems, e.g. D2-MAC, use the interlaced scanning method for image scanning. An interlaced scanning image signal meeting the current TV standards is produced by filtering and scanning a progressively scann...
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WO/1990/011663A1 |
Starting from the fact that a multitude of "subchannels" can be distinguished in a composite television signal, it is proposed to fill these subchannels with digital information including at least a partial video signal component, the si...
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WO/1990/010352A1 |
An electronic image-reproducing device for digital video signals comprises a block-limit light-diffusing screen for reducing the visibility of block limits in video signals. In the case of calculation specifications which differ from blo...
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WO/1990/009723A1 |
A high index color encoding system (10) is provided for the purpose of receiving RGB video input from a personal computer or similar device and generating video signals in other formats for use by conventional video equipment. The color ...
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WO/1990/009081A1 |
A receiver-compatible enhanced definition television (EDTV) system wherein a non-compatible production video signal is separated into plural frequency groups (20). The components of one of the frequency groups contain NTSC compatible vid...
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WO/1990/009080A1 |
Extra information is carried in a television signal (such as a PAL signal) comprising two chrominance signals (U, V) in phase quadrature via one or more enhancement signals (Ue, Ve) which are themselves in phase quadrature with the respe...
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WO/1990/008432A1 |
A method for transmission and reception of reflex-modulated signals in which a reflex-modulated signal containing all the frequency components of the upper (flim + fo) and lower (flim - fo) side bands is generated at the transmitting sid...
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WO/1990/008444A1 |
To obtain an improved PAL-compatible television system with reduced crosstalk between luminance and chrominance spectra, which can be adapted to existing terrestrial channels, the luminance signal spectrum is split on the emission side i...
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WO/1990/008445A1 |
A television system whose full coloured television signal (EM(t)) is formed by the use of reflex-modulated signals (E3(t)), where, at the transmitting side, the quadrature modulation of subcarrier frequencies in the phases ''0'' and U(pi...
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WO/1990/007248A2 |
A process is disclosed for storing colour television signals in a digital memory. In known devices, the colour signal is first demodulated before being stored in a memory, then modulated again when it is read out of the memory, at great ...
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WO/1990/006655A1 |
In the system disclosed, scanning is carried out on the image source side with a frame corresponding to an enlarged 16:9 picture ratio. On the emitter side, every fourth line of the picture signal is first isolated and the remaining line...
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WO/1990/006379A1 |
Furnace for reheating, holding and accumulating steelworks products, in which the products move along a path on beams, whereby said path is located so as to link at right angles a line of feeding rollers and a line of withdrawing rollers...
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WO/1990/006658A1 |
In a colour television transmission system according to the NTSC standard, so-called ''Fukinuki holes'' in the spectrum and an overscan region of the tubes are used for compatible transmission of edge data of a 16:9 picture ratio. An act...
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WO/1990/006657A1 |
The invention concerns a television transmission system which is compatible with conventional TV systems, in which image generation is based on a scanning pattern corresponding to an enlarged-aspect ratio of 16:9. For transmission, every...
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WO/1990/006037A1 |
Since the advent of digital video recorders, it is possible to record in digital format a conventional video signal which complies with the CCIR Standard 601. Problems arise, however, in the recording and mixing of different video standa...
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WO/1990/006038A1 |
Apparatus for encoding a high definition multiplexed analog components television signal by decimating predetermined samples for transmission comprises separate processing paths (Figs. 17 and 18) for luminance and chrominance component s...
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WO/1990/005427A1 |
A video signal processing system employs an amplitude compander for reducing the effects of transmission noise. The compander includes a transmitter nonlinear amplitude compressor (12) for amplifying small signals and compressing large s...
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WO/1990/005430A1 |
By employing different independent polarity codes to polarity-modulate (302, 310, 312) respective quads of averaged values (300, 306, 308) in the vertical-temporal plane of luma, chroma, sidepanel and enhanced-luma components in the mid-...
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WO/1990/004895A2 |
According to known information coding processes, channels are condensed by frequency or time multiplexing, at a high cost and requiring a large bandwidth. According to the invention, serially arranged code elements are individually arran...
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WO/1990/004309A1 |
A method for encoding a high definition television signal consistent with the B-MAC composite signal format comprises the steps of orthogonally sampling the high definition signal, diagonally filtering diagonal resolution information, de...
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WO/1990/004311A1 |
The luminance component of a video signal is processed (12, 16, 18, 20, 21, 32) to produce a luminance component with groups of mutually exclusive spatially correlated image pixels of identical value within each group. In one embodiment ...
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WO/1990/003084A1 |
An NTSC compatible widescreen EDTV system encodes a television signal via a process including intraframe averaging (38) of mutually exclusive successive paired groups of image pixels above a given frequency. At a decoder, intraframe aver...
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WO/1990/003082A1 |
In a transmission system for television signals of high temporal and spatial definition, the signals are subdivided into two components, in view of the limited band of the transmission channels, and transmitted by two separate channels. ...
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WO/1990/003085A1 |
Apparatus and a method of synchronizing the component signals of a multi-component augmented television signal between its generation reception are disclosed. The disclosed apparatus includes circuitry which generates a training signal t...
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WO/1990/002468A1 |
At the receiving end, the system includes a signal parameter detector (40) responsive to signal to be processed for generating control signals to adaptively control signal processing (36). The apparatus further includes a detector (42) f...
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WO/1990/002469A1 |
A video signal generating system develops an encoded video signal (314) representing less than all of the video information. Auxiliary signal generating circuitry develops a pair of auxiliary signals (S1, S2) representing in part the rem...
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WO/1990/001852A1 |
A method for increasing the definition of an NTSC video signal using an augmentation channel involves the generation of both a line summation signal as well as a line difference signal. From the line summation signal, a horizontal detail...
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WO/1990/000338A1 |
A widescreen television signal containing center panel information and time compressed side panel information in an overscan region is intraframe processed above a given frequency only with respect to the center panel information. The in...
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WO/1989/012943A1 |
A system for manipulating video image signals, in which digitized composite video signals (i.e. D2 digitally encoded PAL or NTSC) are converted to component video signals (i.e. luminance and colour difference signals) allowing selected p...
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WO/1989/012939A1 |
Video imaging apparatus provides a relatively lower resolution verification image from a high resolution image sensor (12). By orienting a color filter array (10) so that the luminance (green) elements are arranged in same-color stripes ...
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WO/1989/012371A1 |
System for detecting innovations in an image. A method includes gnerating plural parallel signals representing light incident on adjacent pixels (masks) which form an n by one vector, (Z), n being the number of mask pixels. L groups of a...
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WO/1989/012372A1 |
Extended definition television (EDTV) signals including a compatible composite wideband signal (SWB) and a separate helper or extended definition signal (SNB) are combined (18), for example, for recording purposes (20), using frequency m...
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WO/1989/010673A1 |
The method and system for compressing and decompressing digital color video data utilizes a plurality of digitized signals representing combinations of run lengths (128) and compressed color component codes (126), and a look up table (12...
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WO/1989/010672A1 |
Processes for transmitting video signals, video cameras equipped for said transmission and devices equipped with said cameras. A video camera according to the invention comprises a lens unit (1), an image analyser (2), control circuits (...
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WO/1989/010674A1 |
The method and system of compressing and decompressing digital color video data (112) in a video communication system utilizes a digital color video signal having three video color components, and involves the determination of a predeter...
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WO/1989/010676A1 |
The method and system of decompressing color video data for use in a video information communication system utilizes digitized run length (50) and color (56) information to represent the pixels in the scan lines of a video picture frame....
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WO/1989/010675A1 |
The method and system for compressing color video data in a vdieo communication sytem utilizes a three color digital signal (12), and involves the determination of a luminance function (18) for each pixel in a series of video picture fra...
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WO/1989/010041A1 |
A hybrid television signal of less transmission power or better signal to noise performance is made up by removing low frequency analog components from the video signal (20, 24, 26, 32), digitizing them (26) and sending them as data in n...
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WO/1989/009529A1 |
A computer-based video compression system (20a) for processing natural information signals, such as video signals or audio signals, for the purpose of forming a compact data file of compressed signals which can be expanded to produce the...
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WO/1989/009527A1 |
In a Multiplexed Analog Component (MAC) color television transmission system in which the MAC signal is to be converted at the receiver to a composite color television signal having a 227.5 fH color subcarrier, frequency-generation equip...
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WO/1989/008367A1 |
Apparatus is disclosed for reducing unwanted jagged diagonal artifacts in a video signal. At an encoder, apparatus (38) intraframe averages moving image information over a given frequency range, e.g., above 1.4 MHz, while still image inf...
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WO/1989/008368A1 |
An NTSC compatible widescreen EDTV system encodes and decodes a television signal (N) comprising (1) a main, standard format NTSC signal with auxiliary low frequency side panel image information compressed into an overscan region thereof...
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WO/1989/008366A1 |
A system for transmitting and receiving signals representing a high-definition television (HDTV) image is disclosed. The signals are sent over two conventional 6 MHz NTSC channels. A first signal, the main signal, is developed by encodin...
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