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:
Nov. 03, 2009
Filed:
Aug. 14, 2006
Hideo Yasumoto, Osaka, JP;
Hiroyuki Sasai, Osaka, JP;
Hideo Yasumoto, Osaka, JP;
Hiroyuki Sasai, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In order to improve a transmission speed of multilevel light transmission, increasing the number of light emitting elements is effective. However, in a method in which light outputs from a plurality of light emitting elements are added, because common mode noise contained in the light outputs is added, deterioration in transmission quality caused by the common mode noise prominently arises. Therefore, a difference between two light outputs is previously assigned to data to be transmitted. Specifically, an optical transmitterconverts data Dt to multilevel optical signals OSmand OSmand transmits the converted multilevel optical signals to an optical receiver. The optical receiverrestores the data Dt which is previously assigned to a difference between electrical signals ESrand ESrconverted from the multilevel optical signals OSmand OSm
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile