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. 26, 2008
Filed:
Sep. 02, 2005
Applicants:
David K. Mathews, Dallas, TX (US);
Alfred C. Griffin, Hillsboro, TX (US);
Inventors:
David K. Mathews, Dallas, TX (US);
Alfred C. Griffin, Hillsboro, TX (US);
Assignee:
RadioShack Corporation, Fort Worth, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
G08B 1/08 (2006.01); G08B 5/00 (2006.01); H04M 11/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus for converting a low voltage alternating current (AC) wiring circuit to a high speed data communications link, comprising a primary coupling circuit and a secondary coupling circuit. The apparatus provides low voltage AC power to a data device and couples data signals between the data device and the AC power line via the converted low voltage AC wiring circuit. An example is provided for retrofitting a door chime system to a high speed data link such as a video camera system.