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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.:

US 12463852 B1

PDFFull Text
Date of Patent:
Nov. 04, 2025

Filed:

Jul. 28, 2023

Semiconductor device and electronic apparatus

Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Takao Katayama, Matsumoto, JP;

Akihiro Fukuzawa, Hino, JP;

Fumihito Baisho, Kai, JP;

Tsutomu Nonaka, Hino, JP;

Assignee:

SEIKO EPSON CORPORATION, , JP;

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

Alexander Krzystan

Int. Cl.
CPC ...
H04L 25/49 (2006.01); H03F 3/20 (2006.01); H03M 3/00 (2006.01); H04R 3/00 (2006.01);
U.S. Cl.
CPC ...
H04L 25/4902 (2013.01); H03F 3/20 (2013.01); H03F 2200/03 (2013.01); H03M 3/30 (2013.01); H04R 3/00 (2013.01);
Abstract

Provided is a semiconductor device including: a first modulation circuit configured to receive a first sound source signal, sigma-delta modulate a signal based on the first sound source signal, and output a first sigma-delta modulated signal; a second modulation circuit configured to pulse-width modulate a signal based on the first sigma-delta modulated signal, and output a first pulse-width modulated signal; a first modulation inspection circuit configured to inspect the first modulation circuit; and a second modulation inspection circuit configured to inspect the second modulation circuit, in which the first modulation inspection circuit and the second modulation inspection circuit are separated from each other.

Find Patent Forward Citations

Katayama, Takao. (2025). Semiconductor device and electronic apparatus (U.S. Patent No. 12463852). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12463852

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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