Method for automatic mode selection for a dual-mode telephone ha

Details Method for automatic mode selection for a dual-mode telephone ha Method for automatic mode selection for a dual-mode telephone ha

1993-08-02

1996-04-02

Bost, Dwayne D.

Telephonic communications

Having light wave or ultrasonic link for speech or paging...

Including fiber optic link within telephone network

379 61, 455 331, 455 332, 455 341, 455542, H04Q 732

Patent

active

055048030

ABSTRACT:
A personal communications system permits a wireless handset to access either a cellular mobile telephone system (CMTS) or a private wireless telephone system (WTS) which shares the CMTS frequency band by utilizing those CMTS channels which are idle in the area serviced by the WTS. The wireless handset automatically selects between the WTS and CMTS operating modes by maintaining a list of previously accessed WTS control channels and periodically scanning that list for a WTS available at the location of the handset. If a WTS control channel is not found in that list, then the handset periodically scans all possible WTS control channels for the purpose of registering on an available WTS. If no WTS is found, then the handset switches to CMTS mode. The scanning methodology permits the wireless handset to rapidly lock on to an available WTS which will provide service to the handset, so as to reduce the possibility of the wireless handset missing incoming paging signals.

REFERENCES:
patent: 4768220 (1988-08-01), Yoshihara et al.
patent: 4790000 (1988-12-01), Kinoshita
patent: 4792984 (1988-12-01), Matsuo
patent: 4850033 (1989-07-01), Eizenhofer et al.
patent: 5040238 (1991-08-01), Comroe et al.
patent: 5056109 (1991-10-01), Gilhousen et al.
patent: 5067147 (1991-11-01), Lee
patent: 5101500 (1992-03-01), Marui
patent: 5127042 (1992-06-01), Gillig et al.
patent: 5193101 (1993-03-01), McDonald et al.
patent: 5193109 (1993-03-01), Lee
patent: 5197093 (1993-03-01), Knuth et al.
patent: 5203015 (1993-04-01), George
patent: 5212805 (1993-05-01), Comroe et al.
patent: 5218618 (1993-06-01), Sagey
patent: 5237603 (1993-08-01), Yamagara et al.
patent: 5243641 (1993-09-01), Evans et al.
patent: 5257400 (1993-10-01), Yoshida
patent: 5257401 (1993-10-01), Dahlin et al.
patent: 5260988 (1993-11-01), Schellinger et al.
patent: 5353341 (1994-10-01), Gillis et al.
patent: 5373547 (1994-12-01), Patsiokas et al.
patent: 5379451 (1995-01-01), Nakagoshi et al.
Steele, "The Cellular Environment of Lightweight Handheld Portables", IEEE, 1989.

Affiliated with

Also associated with

Rating

Method for automatic mode selection for a dual-mode telephone ha does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for automatic mode selection for a dual-mode telephone ha, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for automatic mode selection for a dual-mode telephone ha will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2022506