Telephone subscriber line circuit

Details Telephone subscriber line circuit Telephone subscriber line circuit

H - Electricity

04

Q

196/189, 379/67

H04Q 1/28 (2006.01) H04M 19/00 (2006.01)

Patent

CA 1089133

TELEPHONE SUBSCRIBER LINE CIRCUIT Abstract of the Disclosure A line interface circuit for detecting both off-hook and dial pulse signaling on a line. The circuit is comprised of a constant current power supply having an output transformer, a sense winding magnetically coupled to the transformer, a source of reference potential, a comparator circuit having one input connected to the sense winding and another input connected to the source of reference potential and a circuit device connected between the sense winding and the source of reference potential. The circuit device is responsive to a potential induced in the sense winding. A signal generator is provided which is alternatively responsive to the comparator circuit and the circuit device for generating an output signal.

291542

Affiliated with

Also associated with

Rating

Telephone subscriber line circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Telephone subscriber line circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Telephone subscriber line circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1023732