H - Electricity – 04 – M
Patent
H - Electricity
04
M
379/78
H04M 1/65 (2006.01) H04M 1/652 (2006.01)
Patent
CA 1143495
ABSTRACT OF THE DISCLOSURE An acoustic code transmitter in the form of a hand held device provides remote control for a telephone answering machine by means of tone signals transmitted over a telephone liner. A receiver in the answering machine is provided for recognizing the transmitted tone signals in order to cause reproduction of the messages which have previously been recorded on a storage tape in the answering machine, via the telephone line, to the caller. The code transmitter has switching elements for the production of tone signals of unitary duration and frequency, and for the selective pro- duction of different sequences of these tone signals. A first selectable sequence is a code signal for the repro- duction or erasure of the messages recorded in the answering machine; a second sequence is a command signal for the con- tinuation of the playback; and a third sequence is a control signal for the rewinding of the storage tape. The receiver has switching elements for recognition of the received sequences of the tone signals, in order to correspondingly control the recording tape. In addition there exists in the answering machine several signal generators, connectable to the telephone line, for the production and transmission of announcement signals which acknowledge the received code signal to the caller, which indicate the end of the playback interval and the end of the recorded messages, and which provide an erasure inquiry to the caller. The system enables reliable and rapid remote inquiry to the answering machine, and may be made without great expense and without frequency equalization utilizing integrated electronic switching means. - 1 -
337735
Feller Ag
Goudreau Gage & Associates
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