Cordless telephone apparatus

Details Cordless telephone apparatus Cordless telephone apparatus

1995-12-12

1999-02-09

Kuntz, Curtis A.

Telecommunications

Radiotelephone system

Including private cordless extension system

455462, 455574, H04Q 700

Patent

active

058706780

ABSTRACT:
A cordless telephone is composed of a base unit connected to a telephone line and a handset unit capable of radio communications with the base unit. When the handset unit or the base unit initially transmits radio waves for forming a radio link, a channel is selected from a group of channels through which transmission is permitted irrespective of their electric field states, and the radio waves are transmitted through the selected channel. After the radio link has been formed, a speech channel is selected from all channels through which transmission is permitted. In this way, when the base unit or the handset unit initially transmits control data, the transmission is immediately carried out irrespective of an electric field state on the selected channel, whereby the radio link can be established in a reduced time. Further, when a speech communication is started, 15 channels additionally provided by the revised standard can be effectively utilized.

REFERENCES:
patent: 4694485 (1987-09-01), Iwase
patent: 4768219 (1988-08-01), Yamagata
patent: 5044010 (1991-08-01), Frenkiel
patent: 5247567 (1993-09-01), Hirano
patent: 5375163 (1994-12-01), Kamimoto
patent: 5384827 (1995-01-01), Orikassa
patent: 5418839 (1995-05-01), Knuth
patent: 5428669 (1995-06-01), McCarthy
patent: 5442809 (1995-08-01), Diaz et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1959673