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. 11, 2012
Filed:
Jul. 22, 2009
Makoto Suwada, Kawasaki, JP;
Makoto Suwada, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
According to an aspect of the embodiment, According to an aspect of the invention, a signal transmission apparatus transmits a first signal to a transmission line. The apparatus measures a reflection characteristic of the transmission line based on a signal resulting from reflection of the first signal, and measures a transmission characteristic of the transmission line based on a signal resulting from transmission of the first signal through the transmission line. The apparatus determines a transmission clock frequency and a multi-value number based on the reflection characteristic and the transmission characteristic, and modulates information using the transmission clock frequency and the multi-value number to transmit a second signal resulting from the modulation to the transmission line. The apparatus receives the second signal through the transmission line and demodulates the received second signal.