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:
Sep. 06, 2005
Filed:
Oct. 02, 2003
Mitsuyoshi Nagao, Fujieda, JP;
Hidenori Sato, Fujieda, JP;
Mitsuyoshi Nagao, Fujieda, JP;
Hidenori Sato, Fujieda, JP;
Murakami Corporation, Shizuoka, JP;
Abstract
An RF converter circuitthat constitutes a video signal superposing/power deriving unitconverts video signals generated from images taken by a surveillance camera, which derives a direct current voltage as a driving power from an antenna lead-in wirethrough a filter circuit (LPF circuit), to radio-frequency signals. The radio-frequency signals are transmitted through the antenna lead-in wireto a television receiver. Images taken by the surveillance cameracan be viewed on the television receiveronly by selecting the channel assigned to the surveillance camera. Accordingly, the driving power for the surveillance camerais not relied upon a solar battery or secondary batteries, and wiring work therefor may be simplified.