Digital radio communications apparatus

Details Digital radio communications apparatus Digital radio communications apparatus

2006-05-23

2006-05-23

Cong, Danh (Department: 2683)

Telecommunications

Radiotelephone system

Including private cordless extension system

C455S465000, C455S554200, C379S428020, C379S422000

Reexamination Certificate

active

07050821

ABSTRACT:
For the purpose of being capable of performing direct inter-handset communications while maintaining inter-handset communications via a base unit, smoothly making a transition from inter-handset communications via a base unit to direct inter-handset communications, and switching to inter-handset communications via a base unit without releasing the communications even in case direct inter-handset communications cannot be established, a local handset includes a direct inter-handset communications controller and a direct inter-handset communications transition controller for making control to establish direct inter-handset communications while maintaining communications with a base unit as well as transmitting control channels for direct inter-handset communications in vacant slots in the receiving time zones for communications with the base unit, while a distant handset includes a direct inter-handset communications controller and a direct inter-handset communications transition controller for scanning control channels for direct inter-handset communications in the time zones other than the slots occupied by communications with the base unit100.

REFERENCES:
patent: 5123041 (1992-06-01), Brinkmoeller
patent: 5734639 (1998-03-01), Bustamante et al.
patent: 5748621 (1998-05-01), Masuda et al.
patent: 5990069 (1999-11-01), Andre et al.
patent: 6754483 (2004-06-01), Beamish et al.
patent: 6865372 (2005-03-01), Mauney et al.
patent: 2001/0018350 (2001-08-01), Hachimura et al.
patent: 0713345 (1996-05-01), None
patent: 0921668 (1999-06-01), None
patent: 5167523 (1993-07-01), None
patent: 8251653 (1996-09-01), None
patent: 8289361 (1996-11-01), None
International Search Report dated Mar. 11, 2004.

Affiliated with

Also associated with

Rating

Digital radio communications 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 Digital radio communications apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital radio communications apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3639880