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:
Dec. 29, 2015

Filed:

Feb. 10, 2015
Applicant:

Sony Corporation, Tokyo, JP;

Inventors:

Keitarou Kondou, Tokyo, JP;

Makoto Noda, Tokyo, JP;

Shinya Tamonoki, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/08 (2006.01); G01R 19/165 (2006.01); H04L 27/38 (2006.01); H03F 3/19 (2006.01); H03G 3/30 (2006.01);
U.S. Cl.
CPC ...
G01R 19/16528 (2013.01); G01R 19/1659 (2013.01); H03F 3/19 (2013.01); H03G 3/3042 (2013.01); H04L 27/3809 (2013.01); H03F 2200/451 (2013.01);
Abstract

An automatic gain control apparatus includes: a first counter configured to calculate a first count value that is the number of times when a voltage of an input signal exceeds a first voltage threshold within a predetermined period; a second counter configured to calculate a second count value that is the number of times when the voltage of the input signal drops below a second voltage threshold in the predetermined period; and an over-range detector configured to detect an over-range, based on a comparison result obtained by comparing either one of each of the first count value and the second count value and a calculation result of the first count value and the second count value with a predetermined threshold, and output a detection result.


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