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:
Jan. 02, 2024
Filed:
Feb. 26, 2021
Hitachi Astemo, Ltd., Hitachinaka, JP;
Yutaka Uematsu, Tokyo, JP;
Hideyuki Sakamoto, Tokyo, JP;
Hitachi Astemo, Ltd., Hitachinaka, JP;
Abstract
A signal transmission device includes a communication unit that is connected to an electronic device by a signal wiring and performs communication with the electronic device via the signal wiring, a signal processing unit that performs signal processing related to the communication, a power supply unit that supplies direct current to the electronic device via the signal wiring, and a filter circuit connected between the signal wiring and the power supply unit. The filter circuit includes a plurality of filters having frequency characteristics different from each other, and the signal processing unit acquires communication quality information indicating quality of the communication in at least two or more frequency bands, and determines a state of the filter circuit based on the communication quality information.