Color Video Synthesizer with Improved Image Control Means. US Patent

Related records

• Direct Video: Electronic Artform for Color Television Tools

  In 1970 Stephen Beck received a grant to develop the Direct Video Synthesizer for the National Center for Experiments in Television at KQED-TV in San Francisco. He designed and built the synthesizer with support from the National Endowment for the Arts; the prototype comprises circuit and control modules that operate with the scanned video raster, accept sync and drive pulses, and output parallel RGBY for NTSC color. Beck outlines an aesthetic model of form, motion, texture and color and a technical mapping using pulse-width modulation, waveshaping and RGB distribution.

• The Video Synthesizer - Review of Existing Synthesizers, excerpted from "Design Device" Tools

  Tom Dewitt presents the Design Device, a proposed video synthesizer to be controlled by a mini-computer reading a formatted picture language; the instrument is intended to perform video synthesis and signal processing and to let artists prepare and record programs on paper. He reviews existing vector and intensity-based synthesizers and modular, matrix, and computer-controlled patch systems, citing Rutt/Etra, Stephen Beck, Dan Sandin, EMS Ltd., Computer Image Corp., Vector General, Arp, Woody and Steina Vasulka, Don Buchla and Bell Labs. Planned features include memory oscillators for arbitrary wipes, an outline generator to reduce volumes to lines, rotation via low-frequency sine-cosine control voltages, and colorization approaches using luminance, chrominance and hue.

• Techniques for Multiple Generation Color Videotapes- Today and Tomorrow Bibliography

  Techniques for Multiple Generation Color Videotapes- Today and Tomorrow. 15 pages. "...It is the purpose of this paper to discuss both current and future techniques and equipment for the making of color recordings of sufficient perfection to allow dubbing to several generations."

• National Endowment for the Arts: Computer Interface with Video Synthesizer. Proposal Bibliography

  Computer Interface with Video Synthesizers concentrates on the design and construction of an interface between computer and image synthesizer and the development of a computer language to permit the artist to enter the system to create images and notate compositions. Computer Interface with Video Sy…

• Colorizers Come of Age Tools

  Overview of video colorization and synthesizers, describing NTSC color theory and the Y-I-Q system and explaining color subcarrier and chrominance bandwidth (color burst 3.58 MHz). Reviews early analog colorizers and raster/video synthesizers and cites devices and practitioners including the Sandin Image Processor, Paik/Abe Synthesizer, Rutt/Etra, EAB Videolab, Colorado Video Corp. and Computer Image Scanimate; outlines the Video Modular System (VMS) colorizer: A/D (four-bit/16 levels, sampled at 14.3 MHz), D/A, RGB encoder, computer interface (Z-80, TRS-80 and others), and modules (8-input/3-output matrix, pattern generator, multiplexer, RGB decoder, frame buffers 390x600x4-bit); lists applications in labs, medicine, industry, security and video art and notes VMS price starting about $2,000.

• The Video Colorizer: 3,627,912 "Visual Display of Complex Color Television Sound Wave Signals" Bibliography

  Video Colorizer designed by Bill Hearn. Illustration of front panel with description: "The Video Colorizer is capable of simultaneously adding color to a monochrome video signal and total modification of gray scale. This instrument allows the operator to divide the gray scale of video into four or m…