Portable cellular phone capable of detecting its folding state

Details Portable cellular phone capable of detecting its folding state Portable cellular phone capable of detecting its folding state

2005-07-26

2005-07-26

Perez-Gutierrez, Rafael (Department: 2686)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C379S433130, C335S192000, C335S170000, C324S207200

Reexamination Certificate

active

06922573

ABSTRACT:
A portable cellular phone is provided which is capable of surely detecting a state of folding of phone bodies by detection of a weak magnetic field produced by a receiver. A first phone body has a Hall integrated circuit (IC) adapted to detect a magnetic flux formed by a receiver. When the first phone body and a second phone body are folded closed, a magnetic flux density of the magnetic flux that is formed by the receiver and passes through the Hall IC is changed by a magnetic material placed in the second phone body.

REFERENCES:
patent: 4947759 (1990-08-01), Uhl
patent: 5673314 (1997-09-01), Olkoshi et al.
patent: 6060969 (2000-05-01), Hufgard et al.
patent: 6230028 (2001-05-01), Shirakawa
patent: 6314183 (2001-11-01), Pehrsson et al.
patent: 6701166 (2004-03-01), Lim
patent: 2001/0041543 (2001-11-01), Lim
patent: 2002/0019216 (2002-02-01), Horiguchi
patent: 2002/0119802 (2002-08-01), Hijii
patent: 2321177 (1999-05-01), None
patent: 199 05 302 (1999-08-01), None

Affiliated with

Also associated with

Rating

Portable cellular phone capable of detecting its folding state does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Portable cellular phone capable of detecting its folding state, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable cellular phone capable of detecting its folding state will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3382419