Research/Patents/US 4669070
US 4669070Tier 3 — General Defense

SIGNAL FORMAT FOR OPTICAL TAPE RECORD/PLAYBACK SYSTEM

Assignee

General Electric

Filed as: GENERAL ELECTRIC COMPANY

Filed

Sep 18, 1979

Granted

May 26, 1987

Location

EAST WINDSOR NJ US

Abstract

An optical tape record/playback apparatus is provided for recording/reproducing information signals onto an optical tape. The record apparatus comprises laser sources which are modulated in accordance with the information signals. A sequence number is recorded by the laser sources to aid in the recovery of information. In the playback mode a light detector is arranged to intercept the light reflected from the optical tape. The reflected light contains the information which was recorded on the optical tape during the recording operations. The high packing density of the information recorded in the tape may affect the proper recovery of the recorded information. During the recording operation a sequence number is recorded in a special section of the optical tape to aid in the recovery of the recorded information signals.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Apr 16, 1982

Rescinded

Nov 7, 1986

Duration

4 years, 6 months

Inventor

  • 1ALAN E. BELL

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records