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. 30, 2025
Filed:
Aug. 15, 2023
Yazaki Corporation, Tokyo, JP;
Takamitsu Aiba, Kanagawa, JP;
YAZAKI CORPORATION, Tokyo, JP;
Abstract
A transmission device includes an RF signal generation unit, a pulse signal generation unit, a coupling unit, a linear driver, and a light-emitting element. The RF signal generation unit generates an RF signal to be modulated by a carrier wave. The pulse signal generation unit generates a pulse signal. The coupling unit couples the RF signal and the pulse signal to each other and generate a superimposed signal. The linear driver amplifies the superimposed signal and generate an amplified signal. The light-emitting element converts the amplified signal to an optical signal and generate a superimposed optical signal. The pulse signal generation unit generates the pulse signal in such a way to satisfy fr=n×fs, where fr is a carrier wave frequency of the RF signal, fs is a first frequency being a reciprocal of a modulation speed of the pulse signal, and n is a natural number.