Recorder system with demand actuation

Details Recorder system with demand actuation Recorder system with demand actuation

1989-05-24

1992-02-25

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

379083, G11B 1518, H04M 164

Patent

active

050918079

ABSTRACT:
A video cassette rotary scanner is adapted for high capacity, high speed, digital audio spectrum data recording by the use of a buffer memory and a servo control system. The buffer memory is operative at a speed much higher than that of the tape. The tape is maintained at relaxed tension until a high data occupancy signal from the buffer activates the data write operation. In response, the tape tension is increased for a write operation, and relaxed again only when the buffer sends a low data occupancy signal. The use of the buffer along with capstan, take-up reel and supply reel motors responsive to the two signals permits tape wear to be decreased substantially while increasing tape capacity.

REFERENCES:
patent: 4649441 (1987-03-01), Louth
patent: 4894728 (1990-01-01), Goodman

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