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:
Apr. 22, 2014

Filed:

Jul. 26, 2006
Applicants:

Masaru Aiso, Hamamatsu, JP;

Masaaki Okabayashi, Hamamatsu, JP;

Takamitsu Aoki, Hamamatsu, JP;

Inventors:

Masaru Aiso, Hamamatsu, JP;

Masaaki Okabayashi, Hamamatsu, JP;

Takamitsu Aoki, Hamamatsu, JP;

Assignee:

Yamaha Corporation, Hamamatsu-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/00 (2006.01); H03G 3/00 (2006.01); H03G 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Digital mixer includes a plurality of input ports each capable of performing gain adjustment, and a plurality of signal processing channels. Signal of each of the input ports is allocated to one or more desired ones of the channels. Each of the input channels includes an attenuator and can control the level of each signal supplied thereto. Gain value of any one of the input ports is updated in accordance with the gain adjustment performed in that input port, and, when an automatic gain adjustment function is ON in any one of the input channels set as patched-to destinations of the input port, an attenuator value of the input channel is automatically adjusted so as to cancel out an amount of variation of the gain value.


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