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:
Sep. 18, 2012

Filed:

Nov. 12, 2008
Applicants:

Yasuyuki Watanabe, Tokyo, JP;

Kunihiro Esaki, Tokyo, JP;

Inventors:

Yasuyuki Watanabe, Tokyo, JP;

Kunihiro Esaki, Tokyo, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/268 (2006.01);
U.S. Cl.
CPC ...
Abstract

An electronic device includes a connection terminal to connect to an external device via an interface including a first transmission path capable of unidirectional transmission of digital signals and a second transmission path capable of bidirectional transmission of a predetermined message; a detecting unit to detect whether the unidirectional transmission to the external device is possible/impossible; an obtaining unit to obtain an address of the electronic device from the external device if the unidirectional transmission is possible; a storage unit to store the obtained address; a receiving unit to receive the predetermined message from the external device; a determining unit to determine whether a destination of the received message includes the stored address; a responding unit to respond to the received message if the destination includes the address; and a control unit to control the responding unit not to respond to the received message if the unidirectional transmission is impossible.


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