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. 21, 2009
Filed:
Aug. 06, 2004
Hirokazu Sato, Tokyo, JP;
Hideaki Hashimoto, Kanagawa-ken, JP;
Junji Ooaki, Kanagawa-ken, JP;
Fumio Ozaki, Kanagawa-ken, JP;
Hirokazu Sato, Tokyo, JP;
Hideaki Hashimoto, Kanagawa-ken, JP;
Junji Ooaki, Kanagawa-ken, JP;
Fumio Ozaki, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A main control apparatus is connected to a single signal line. A plurality of equipments is respectively connected to a multipoint line. Each multipoint line diverges from the single signal line. The main control apparatus sends a control signal to each equipment through the single signal line using a frequency band. Each equipment receives the control signal from the main control apparatus through the multipoint line using the frequency band. Each equipment is assigned a unique frequency from within the frequency band.