Folded-type portable telephone set

Details Folded-type portable telephone set Folded-type portable telephone set

1998-06-23

2000-12-26

Hunter, Daniel S.

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

455421, 455 90, 455575, 455422, H04Q 720

Patent

active

061672882

ABSTRACT:
A control circuit 7 investigates, based on inputs from an opening/closing condition detecting circuit 3 and a display button switch 1, a radio wave receiving condition when the display button switch 1 is operated while first and second main bodies 8 and 9 are closed, instructs, if although out of bounds is displayed when the display button switch 1 is operated, the display is then changed to within bounds, a sounder 6 to issue an informing sound in order to inform a user of the change in condition and also instructs a display lamp 2 for displaying. The sounder 6 informs the user of the change in condition from out of bounds to within bounds and the display lamp 2 displays within bounds.

REFERENCES:
patent: 5644620 (1997-07-01), Shimura
patent: 5706332 (1998-01-01), Nagai
patent: 5809414 (1998-07-01), Coverdale et al.
patent: 5832386 (1998-11-01), Nojima et al.
patent: 5867782 (1999-02-01), Yoon
patent: 5956656 (1999-09-01), Yamazaki
patent: 5966656 (1999-10-01), Elkin et al.
patent: 5966671 (1999-10-01), Mitchelle et al.
patent: 5991644 (1999-11-01), Ogawa

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