Hand held telephone set with separable keyboard

Details Hand held telephone set with separable keyboard Hand held telephone set with separable keyboard

1998-05-28

2000-09-05

Trost, William G.

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

455 90, 455550, 455575, 455 95, H04Q 708

Patent

active

061156167

ABSTRACT:
A detachable keyboard for a telephone set is provided in the form of a keyboard card clipped to the headset, which is completely detached from the body when unclipped. Wireless communication between the handset body and keyboard is used when the card is unclipped, while contacts are activated in the clipped position so that the wireless handset then functions as in the case of a non detachable keyboard.

REFERENCES:
patent: 4674111 (1987-06-01), Monet et al.
patent: 4969181 (1990-11-01), Ito
patent: 5537673 (1996-07-01), Nagashima et al.
patent: 5553312 (1996-09-01), Gattey et al.
patent: 5608739 (1997-03-01), Snodgrass et al.
patent: 5857157 (1999-01-01), Shindo
patent: 5924044 (1999-07-01), Vannatta et al.
patent: 5946635 (1999-08-01), Dominguez
patent: 5974301 (1999-10-01), Palmer et al.

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