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. 28, 2021
Filed:
Feb. 26, 2019
Seiko Epson Corporation, Tokyo, JP;
Jun Ishida, Chino, JP;
Akira Morita, Chino, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A circuit device includes a first input terminal, a second input terminal, a reception circuit including a non-inverted input terminal and an inverted input terminal, a first signal line electrically coupling a non-inverted input terminal of the reception circuit and the first input terminal and having a first coupling node and a second coupling node, a second signal line electrically coupling an inverted input terminal of the reception circuit and the second input terminal and having a third coupling node and fourth coupling node, a first variable capacitance circuit having an end coupled to the first coupling node and another end coupled to the second coupling node, and a second variable capacitance circuit having an end coupled to the third coupling node and another end coupled to the fourth coupling node.