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:
Dec. 04, 2012
Filed:
Mar. 19, 2008
Tadashi Matsumoto, Osaka, JP;
Makoto Nishikawa, Kadoma, JP;
Shoji Koise, Fukuoka, JP;
Masayuki Amano, Kadoma, JP;
Tadashi Matsumoto, Osaka, JP;
Makoto Nishikawa, Kadoma, JP;
Shoji Koise, Fukuoka, JP;
Masayuki Amano, Kadoma, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A communication devicehas a first protocol analysis sectionthat analyzes a status of a transmission signal Vs received at a transmission signal receiver. A transmission controllerdetermines a communication available period and a communication unavailable period based upon the analysis result. When the communication available period is determined, the transmission controllerallows a second protocol signal transmitterto transmit a packet in accordance with a second protocol to a signal line Ls. With this result, it is possible to transmit a relatively large amount of data while suppressing noise influence caused by a varying condition of a carrier, in contrast to a prior system in which the transmission signal is superimposed only by a simple determination of the carrier condition. Thus, it is possible to share the signal line Ls with the time-division multiplexing transmission system and improve reliability of data transmission.