The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 1994
Filed:
Jul. 16, 1991
David E Wachob, Elkins Park, PA (US);
Hal M Krisbergh, Rydal, PA (US);
Other;
Abstract
A method and provides for transmitting a time reference throughout a residence or other facility for use by appliances operating within the facility. A time reference is received from the headend of a cable television (CATV) system at the subscriber converter and is retransmitted to set the internal clock timers of residential appliances throughout the house. The time reference is received by the CATV converter, then encoded and modulated for transmission on the residential AC wiring system which also carries AC power to all of the appliances in the house. Individual appliances receive the encoded time reference from the AC power line, demodulate the received signal and use the received time reference to set its internal clock timer. In such manner, a residential appliance does not need to have its internal clock set by the consumer.