Telephone answering device with plural message recording tapes

Details Telephone answering device with plural message recording tapes Telephone answering device with plural message recording tapes

1975-02-19

1976-03-23

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

Head

Core

360 91, G11B 1506, H04M 164

Patent

active

039461602

ABSTRACT:
The speed of either the feed reel or the take-up reel of a tape cassette is detected as an indication of the amount of recording time left on the message recording tape. When about five minutes or less of recording time is left, and when no incoming messages are being received over the telephone line, a control circuit switches the recording operation over to another available cassette.

REFERENCES:
patent: 3845248 (1974-10-01), Ando
patent: 3898385 (1975-08-01), Shimomiti et al.

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