Transceiver

Details Transceiver Transceiver

1975-09-17

1977-01-11

Claffy, Kathleen H.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340150, H04Q 900

Patent

active

040028372

ABSTRACT:
A data receiver for transmitting interrogating signals to activate in sequence a plurality of data transponders, receiving data from the transponders, processing the data, correcting the data, storing the data in a temporary memory, and delivering the data to output equipment. Preferably, the transceiver may be used with a switched telephone network. Means are provided to detect when the telephone subscriber goes "off hook" and releases the line to the subscriber. The transceiver includes means to detect failure of response and stores signals indicating failures. Means are provided to transmit a second interrogation signal in a polarity opposite to the first to overcome the effect of a reversed subscriber line pair.

REFERENCES:
patent: 3700816 (1972-10-01), Evans
patent: 3820075 (1974-06-01), Ebner
patent: 3842218 (1974-10-01), DeLuca
patent: 3899639 (1975-08-01), Cleveley

Affiliated with

Also associated with

Rating

Transceiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1744771