Title:
【発明の名称】アナログ/デジタル音声記憶セルラ電話
Document Type and Number:
Japanese Patent JPH04505526
Kind Code:
A
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.
Inventors:
Hellferich, Richard Jay
Application Number:
JP50707190A
Publication Date:
September 24, 1992
Filing Date:
April 13, 1990
Export Citation:
Assignee:
Martin A. Schwartz Revokable (Living) 1991 Trust
Hellferich, Richard Jay
Hellferich, Richard Jay
International Classes:
G08B3/10; H04B1/66; H04M1/64; H04M1/65; H04M1/00; H04M1/656; H04M1/72433; H04W88/06; (IPC1-7): H04B7/26; H04M1/00; H04M1/65
Domestic Patent References:
| JPS58173923A | 1983-10-12 | |||
| JPS61225933A | 1986-10-07 |
Attorney, Agent or Firm:
Hisami Fukami (4 outside)