Telephonic communications – Audio message storage – retrieval – or synthesis
Patent
1989-09-07
1991-04-23
Ng, Jin F.
Telephonic communications
Audio message storage, retrieval, or synthesis
379 63, H04M 1100
Patent
active
050105663
ABSTRACT:
A cordless telepone includes a base unit connected to a telephone line so as to communicate by radio waves for talking and a hanset. The handset includes a speaker, a microphone, and a transmitting and receiving circuit for communicating with the base unit by radio waves, transforming the signals from the caller into acoustic sound by the speaker, and sending the output from the microphone to the caller. The handset further includes a battery for providing the transmitting and receiving circuit with electric power. Still further, the handset includes a device for display to indicate the in-service state, a device for detecting the contact of the speaker area with a part of the body, a device for detecting talking to detect the in-service state, and a device for controlling to stop the display action of the display device when the speaker area is in contact with a part of the body and is in service this stopping of the display device occurs response to the output from the contact detecting device and the talk detecting device. The control device further affects the display action by the display device while the speaker area is not in contact with the body during service. The handset, in this device, is electrically powered by a battery.
REFERENCES:
patent: 3962553 (1976-06-01), Linder et al.
patent: 4332981 (1982-06-01), Palombi et al.
patent: 4894856 (1990-01-01), Nakanishi et al.
Publication of Autophon's Portatel-Cordless Telephone Technical Data Sheet.
Publication-Universal Tote & Talk 3400 User's Manual.
Bost Dwayne D.
Ng Jin F.
Sharp Kabushiki Kaisha
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