Browse Prior Art Database

Video Color Recording System

IP.com Disclosure Number: IPCOM000093015D
Original Publication Date: 1967-Apr-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 47K

Publishing Venue

IBM

Related People

Johnson, RB: AUTHOR

Abstract

This video color recording has black and white vidicon camera 10, rotating color wheel 11, rotating head helical-scan assembly 12 comprising timing track 13 and three rotating write heads 14, rotating helical-scan head assembly 15 comprising three rotating read heads 16, color receiver 17 with three color guns 18...20. This system results in very high quality color and resolution in television for still images and for limited motion images. The motion limitation is that of a ten frame per second system.

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Video Color Recording System

This video color recording has black and white vidicon camera 10, rotating color wheel 11, rotating head helical-scan assembly 12 comprising timing track 13 and three rotating write heads 14, rotating helical-scan head assembly 15 comprising three rotating read heads 16, color receiver 17 with three color guns
18...20. This system results in very high quality color and resolution in television for still images and for limited motion images. The motion limitation is that of a ten frame per second system.

Rotating color wheel 11, comprised of red, green, and blue filters used in conjunction with vidicon camera 10, allows the sequential recording of three tracks 21...23 of intelligence. Each track corresponds to a color in the color wheel and requires 1/30 of a second to be recorded. The video tape is held in place until all three tracks are recorded on by write heads 14. Then the tape is advanced three tracks to record the next sequence of three tracks. Timing track 13 on assembly 12 generates horizontal line synchronization pulses. The latter trigger the camera's horizontal sweep for the purpose of insuring perfect time registration between the three tracks recorded on successive head revolutions.

Playback unit 15 contains three read heads 16 which read the three tracks of intelligence 21...23 simultaneously. Unit 15 directs the output of heads 16 into the circuits for the three color guns 18...20 of TV receiver 17. The sequential reco...