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:
Apr. 29, 1980
Filed:
Dec. 28, 1977
Applicant:
Inventors:
David C Campbell, Fife, GB;
David R Thompson, Fife, GB;
Assignee:
Pico Electronics Limited, Fife, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
3403 / ; 307-3 ; 340695 ; 3403 / ;
Abstract
An applicance control system comprises a data transmitter and plurality of slave units plugged into outlet sockets of a power main of a building, appliances being coupled to the slave units. The transmitter housing includes a data input arrangement by which slave unit addresses and operation signal can be input and means for producing therefrom digital address and operation signals injected onto the main for receipt by the slave units. Each slave unit is enabled by a digital signal complying its address to effect an appliance operation as defined by a received digital operation signal.