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.

Date of Patent:
Aug. 24, 2021

Filed:

Mar. 20, 2020
Applicant:

Lapis Semiconductor Co., Ltd., Yokohama, JP;

Inventor:

Hiroji Akahori, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 29/00 (2006.01); H04R 3/00 (2006.01); G06F 3/16 (2006.01);
U.S. Cl.
CPC ...
H04R 29/001 (2013.01); G06F 3/165 (2013.01); H04R 3/00 (2013.01);
Abstract

A playback device includes a playback function unit, a data signal monitoring unit configured to output a data change trigger signal based on a change in the data signal, a clock signal monitoring unit configured to output a clock change trigger signal based on a change in the clock signal, an enable signal monitoring unit configured to output an enabled/disabled state signal that indicates a disabled or enabled state of the enable signal, and a determining unit configured to determine whether the data signal, the clock signal, or the enable signal is properly inputted into the playback function unit or not, based on the data change trigger signal, the clock change trigger signal, and the enabled/disabled state signal.


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