Cordless telephone

Details Cordless telephone Cordless telephone

H - Electricity

04

M

379/11

H04M 1/00 (2006.01) H04M 1/725 (2006.01) H04M 1/72 (2006.01)

Patent

CA 1206638

ABSTRACT OF THE DISCLOSURE A cordless telephone in which communication between a base unit connected to a telephone network and a handset unit is carried out by radio waves, includes a transmitting and receiving system in the base unit and a transmitting and receiving system in the handset and first and second control circuits provided in the base unit system and in the handset, respectively, each include a detecting circuit for detecting whether any signal is present in an initally selected channel at the time communication is to be initiated between the base unit and the handset unit. Such signals being present in the initially selected channel may be caused by interference from other cordless telephone systems in the vicinity. Channel selector apparatus acts to change the base unit and handset from the occupied channel to a vacant channel. Depending on whether it is an incoming call or an outgoing call either the first control circuit of the base unit or the second control circuit of the handset selects the vacant channel in response to an instruction command from the other control circuit.

451196

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1175350