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. 10, 2002

Filed:

Sep. 08, 1998
Applicant:
Inventors:

Sakae Washikawa, Chiba, JP;

Koji Hirano, Kanagawa, JP;

Shigeru Saegusa, Tokyo, JP;

Keiichi Nakamura, Ibaraki, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 5/00 ;
U.S. Cl.
CPC ...
H04L 5/00 ;
Abstract

An audio signal processing apparatus including a plurality of jack units each of which has at least an audio signal contact piece and a control signal contact piece. A control circuit judges a kind of an audio appliance connected to each of the plurality of jack units based on a control signal obtained at the control signal contact piece, and when a function change-over command to select any one of the audio appliances is supplied, a function selecting circuit selects one of the jack units to which the audio appliance is connected. An audio appliance can be connected to any of the plurality of jack units.


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