Dynamic magnetic information storage or retrieval – Miscellaneous
Patent
1976-11-11
1978-02-07
Lucas, Jay P.
Dynamic magnetic information storage or retrieval
Miscellaneous
242197, G11B 2308, G11B 2338
Patent
active
040729958
ABSTRACT:
An apparatus for allowing the monitoring of a tape running through a window formed in a tape cassette is provided. The apparatus comprises a light transmitting area formed in the bottom surface of a cassette receiving chamber of a cassette tape recorder, the light transmitting area being located within viewing area of the cassette window. External light admitted through at least a portion of the casing of the tape recorder is passed through the light transmitting area to be incident on the rear side of the tape cassette, thereby enabling a monitoring of the tape running under the aid of the incident light, by visual inspection through the viewing window.
REFERENCES:
patent: 3485963 (1969-12-01), Murata
patent: 3557360 (1971-01-01), Aldridge
patent: 3584941 (1971-06-01), Downey
patent: 3615155 (1971-10-01), Gelbman
patent: 3619625 (1971-11-01), Wood
patent: 3638955 (1972-02-01), Wada
patent: 3675876 (1972-07-01), Frederick
patent: 3722828 (1973-03-01), Kremp
Lucas Jay P.
Olympus Optical Co,. Ltd.
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