Communication device with two modes of operation

Details Communication device with two modes of operation Communication device with two modes of operation

1996-05-29

2000-04-04

Hunter, Daniel S.

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

455 90, 455566, 455575, H04M 100

Patent

active

060471964

ABSTRACT:
The invention relates to a mobile station which comprises two separate user interfaces and an outer covering (10, 11) which can be unfolded. The device has the appearance and the size of a common mobile phone when the outer covering (10, 11) is closed, whereby available is a first user interface being substantially a telephone user interface. When the outer covering (10, 11) of the device is unfolded it exposes a second user interface having a relatively large-sized display (12) and an alphanumeric keypad (15). Alphanumeric messages and graphical information can be transmitted and received using the second user interface.

REFERENCES:
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patent: 5335276 (1994-08-01), Thompson et al.
patent: 5422656 (1995-06-01), Allard et al.
patent: 5491507 (1996-02-01), Umezawa et al.
patent: 5526411 (1996-06-01), Krieter
patent: 5646649 (1997-07-01), Iwata et al.
patent: 5692046 (1997-11-01), Jambhekar
patent: 5715524 (1998-02-01), Jambhekar et al.
patent: 5742912 (1998-04-01), Nishiyama et al.
patent: 5797089 (1998-08-01), Nguyen

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