Analog/digital voice storage cellular telephone

Details Analog/digital voice storage cellular telephone Analog/digital voice storage cellular telephone

1993-02-01

1995-06-20

Brown, Thomas W.

Telephonic communications

Audio message storage, retrieval, or synthesis

Multilingual system or operation

379 59, 379 63, H04M 165, H04M 1100

Patent

active

RE0349763

ABSTRACT:
An analog-to-digital voice storage cellular telephone for recording voice messages while the user is away from the cellular telephone unit. In a preferred embodiment, the analog-to-digital voice storage cellular telephone comprises call answering circuitry which is activated after a predetermined number of rings. Detection circuitry waits to detect a SAT signal during a preset period of time. Once the SAT signal is detected a prerecorded outgoing message is transmitted to the caller. The voice storage cellular telephone records incoming voice messages. which are retrieved and replayed by users at their convenience. If the SAT signal is not detected, call terminating circuitry immediately terminates call. In accordance with one aspect, voice messages may be recorded at the central cellular station in real time, subsequently transmitted to the voice storage cellular telephone at a high speed and reproduced at normal speed to reduce air transmission time and cost.

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