Radio telephone

Details Radio telephone Radio telephone

1989-03-02

1990-03-20

Lev, Robert

Telephonic communications

Audio message storage, retrieval, or synthesis

379 58, 455127, H04Q 704

Patent

active

049107615

ABSTRACT:
A radio telephone having a base unit connected to a wired telephone line, a handset unit connectable to the base unit over a radio channel and provided with a hook switch, and a charger for selectively charging the handset unit. The handset unit is automatically controlled to either an on-hook state or an off-hook state when removed from the charger, depending upon the hook state in which the handset unit has been held before the start of charging.

REFERENCES:
patent: 4513446 (1985-04-01), Leslie
patent: 4544924 (1985-10-01), French
patent: 4591914 (1986-05-01), Hakamada et al.
patent: 4595795 (1986-06-01), Endo
patent: 4723304 (1988-02-01), Maeda
patent: 4726052 (1988-02-01), Kato et al.
patent: 4731814 (1988-03-01), Becker et al.
patent: 4761806 (1988-08-01), Toki

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