1
Armando Campioni: Color television signal including auxiliary information. Indesit Industria Elettrodomestici Italiana S p A, Sughrue Rothwell Mion Zinn and Macpeak, January 9, 1979: US04134127 (186 worldwide citation)

A color television system, such as the NTSC system, in which at least a part of the chromatic information is transmitted as suppressed carrier amplitude modulation of a subcarrier, and a subcarrier burst is inserted in the signal as a reference signal for use in demodulating the signal in which the ...


2
Yee S Ng: Input scanner color mapping and input/output color gamut transformation. Eastman Kodak Company, Norman Rushefsky, February 9, 1993: US05185661 (81 worldwide citation)

An input scanner and print engine system corrects for color interpretation errors in the input scanner's color filter set and maps the requested input colors to an output color printable by the printer in a uniform color space. A 3.times.3 transform matrix partially corrects for the color interpreta ...


3
Barin G Haskell: Technique for generating semi-compatible high definition television signals for transmission over two cable TV channels. AT&T Bell Laboratories, Erwin W Pfeifle, August 13, 1985: US04535352 (65 worldwide citation)

The present invention relates to a technique for generating a Semi-Compatible High Definition Television (SC-HDTV) signal which can be sent over two present-day Cable Television (CATV) channels. In accordance with the present invention, a HDTV signal is formed comprising a line scan rate which is a ...


4
Abraham A Goldberg, Renville H McMann, John P Rossi: Two channel compatible high definition television broadcast system. CBS, Spencer E Olson, August 12, 1986: US04605950 (61 worldwide citation)

A television system for broadcasting high definition television on two channels of a direct broadcast satellite, a first of which carries a compatible 525-line picture. A second channel carries an augmentation signal, which in conjunction with the signal from the first channel, produces at a receive ...


5
Rodney D Stock: YIQ Computer graphics system. Ampex Corporation, Gregory L Roth, Joel D Talcott, October 2, 1984: US04475161 (38 worldwide citation)

A YIQ computer graphics system includes a data processing system having a data tablet for receiving inputs from an artist and a video processing system connected to the data processing system. The video processing system includes a two component expandable frame store with the first component storin ...


6
James H Wharton, Jack E James: Video processor employing variable amplitude compression of the chrominance component. RCA Corporation, E M Whitacre, J S Tripoli, R G Coalter, February 16, 1982: US04316213 (19 worldwide citation)

A composite video signal is separated into luminance and chrominance components which are processed in separate channels having transfer functions which differ in terms of frequency response and large signal amplitude response. The luminance channel subjects the luminance signal to high frequency pr ...


7
Stephen G Wozniak: Apparatus for digitally controlling pal color display. Apple Computer, Blakely Sokoloff Taylor & Zafman, August 12, 1980: US04217604 (19 worldwide citation)

An apparatus for digitally controlling the display of color in a phase alternation line (PAL) video display is disclosed. Coded digital signals are shifted in a recirculating shift register. The direction of shifting in the register and the stage at which the signals in the register are sensed are c ...


8
Glenn A Reitmeier, Robert A Dischert: Adaptive composite-component transcoding hierarchy for digital video. RCA Corporation, E M Whitacre, W H Meise, H T Steckler, September 28, 1982: US04352122 (17 worldwide citation)

An apparatus for providing component-to-composite and vice versa transcodings of a sampled video signal features generating steering bits that indicate which of combinations of surrounding samples of a composite signal has a component that provides the closest match to the corresponding component of ...


9
Richard Claxton Palmer: Video disc recording apparatus and methods. RCA Corporation, Eugene M Whitacre, William H Meagher, January 20, 1976: US03934263 (17 worldwide citation)

Frequency modulated sound carrier waves and frequency modulated picture carrier waves are combined in an adder, and the sum is clipped to develop a recording signal input for an electron beam disc recorder. To reduce possible sound carrier interference in pictures reproduced from signals recovered d ...


10
Maarten R de Haan: Color television signal having color-difference signals alternating between two carriers. U S Philips Corporation, Thomas A Briody, William J Streeter, Edward W Goodman, February 12, 1980: US04188638 (13 worldwide citation)

A transmission system for a color television signal, in particular a system for recording on and reproducing from a record carrier. The chrominance signal is divided into two separate color signals, which in a line-sequentially alternating fashion are modulated on two separate color carrier waves. T ...