Foldable portable telephone set

Details Foldable portable telephone set Foldable portable telephone set

1994-06-28

1996-02-20

Hofsass, Jeffery A.

Telephonic communications

Audio message storage, retrieval, or synthesis

379 58, 379 61, 379387, 379421, H04M 119

Patent

active

054936900

ABSTRACT:
A foldable portable telephone set which allows switching between a speech holding condition and a speaking condition without the necessity of an operation of a key thereby to prevent an operation in error. An open or closed condition of a cover section relative to a body section is detected by means of a reed switch provided on the cover section, a magnet provided on the body section, and a detection circuit for detecting an on- or off-state of the reed switch. A speech holding condition is established when it is detected that the cover section is closed during speech. In the speech holding condition, manually operable keys are covered with the body section and not exposed outside.

REFERENCES:
patent: 4707853 (1987-11-01), Hasegawa
patent: 4924193 (1990-05-01), Saito et al.
patent: 5111503 (1992-05-01), Takagi
patent: 5175759 (1992-12-01), Metroka et al.
patent: 5214688 (1993-05-01), Szlam et al.

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