Security control system
CA 1260100 A · Owner: Black & Decker Inc. · Inventors: Pezzolo, Donald E.; Mitasev, Blazo A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A security and control system for use in a home or building, utilizes a coded audio link between entry detectors/transmitters (12) and relay modules (18) and a digital, pulse coded power line communication (PLC) link between the relay modules (18) and a system controller (20) as well as between the system controller (20) and various remotely located slave units (22 24, 26) which control the energization of lamps appliances, and, alarms. The controller (20) is also adapted to receive coded audio signals directly from an entry detector/transmitter (12). The relay modules (22, 24, 26) and controller (20) include constant false alarm rate receivers for isolating the coded audio signal from …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.