G - Physics – 11 – B
Patent
G - Physics
11
B
179/17, 352/20.5
G11B 19/02 (2006.01) G11B 27/28 (2006.01) H04M 11/10 (2006.01)
Patent
CA 1047940
ABSTRACT OF THE DISCLOSURE A central dictation system including a plurality of remote dictate stations, a plurality of record/reproduce stations and a plurality of trans- cribing stations operatively connected to respective ones of the record/re- produce stations. Any one of the remote dictate stations is capable of communicating with any one of the record/reproduce stations so as to ex- ecute a dictate and/or playback operation. When a record/reproduce station is communicating with a dictate station, the remaining dictate stations are prevented from gaining access to that communicating record-reproduce station. A transcribing operation can be performed substantially inde- pendent of the dictate and/or playback operation. Code recording appara- tus is provided to automatically record a predetermined code signal at the conclusion of each dictated message. This recorded code signal prevents the recorded message from being reviewed or erased by the subsequent use of a remote dictate station. During a transcribing operation, these pre- determined code signals are detected and are used to implement a scanning operation so that a desired one of the dictated messages can be transcribed, notwithstanding the particular sequence in which that message had been re- corded. The record medium may comprise a magnetic tape and noise suppressing circuitry is provided to suppress the inherent tape hiss attending a play- back operation when the tape is driven at a very slow speed, In an embodi- ment wherein the dictation and transcription transducing sites are spaced apart, apparatus is provided to insure that a sufficient amount of magnetic tape is furnished to the transcription transducer site to permit an entire dictated message to be transcribed.
242573
Foster Edward J.
Matz Bjorn J.
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