Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent
1996-06-03
1999-01-05
Chin, Wellington
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
455 90, 455556, 455566, H04B 102
Patent
active
058571574
ABSTRACT:
A portable communication terminal apparatus according to the present invention includes a first means having a microphone and a speaker, and a second means having operation keys and/or display means. At least one of the first and second means has a magnet for attaching the second means to the first means. The second means can be attached to the first means. Each of the first means and the second means has a light emitter and a light detector, whereby data is transmitted therebetween. The operation keys are provided on one surface of the second means. When the second means is attached to the first means with the one surface thereof being faced forward, data is transmitted between the light emitter of the first means corresponding to the light detector of the second means and the light emitter of the second means corresponding to the light detector of the first means. The second means has a memory means for storing identification information of a user.
REFERENCES:
patent: 5140632 (1992-08-01), Anten
patent: 5303291 (1994-04-01), Tagaki et al.
patent: 5559863 (1996-09-01), Hashimoto
patent: 5584054 (1996-12-01), Tyneski et al.
patent: 5715524 (1998-02-01), Jambhekar et al.
Chin Wellington
Maioli Jay H.
Nguyen Thuan T.
Sony Corporation
LandOfFree
Portable communication terminal apparatus 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 communication terminal apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable communication terminal apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-869336