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.
Patent No.:
Date of Patent:
Jan. 17, 2012
Filed:
Sep. 21, 2007
Masahiro Nakano, Tokyo, JP;
Kazuhiro Sato, Tokyo, JP;
Mitsuhiro Suzuki, Chiba, JP;
Taketoshi Shimizu, Kanagawa, JP;
Masahiro Nakano, Tokyo, JP;
Kazuhiro Sato, Tokyo, JP;
Mitsuhiro Suzuki, Chiba, JP;
Taketoshi Shimizu, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
Remote control data is securely transmitted to a device under control. A remote control device transmits an acknowledge request for A ch to the device under control (S). When the device under control has assigned A ch as the reception channel, acknowledge ACK is received. A ch is assigned as the transmission channel (S), and a command frame is transmitted through A ch (S). When acknowledge ACK has not been received, an acknowledge request for B ch is transmitted to the device under control (S). When the device under control has assigned B ch as the reception channel, acknowledge ACK is received. B ch is assigned as the transmission channel (S), and a command frame is transmitted through B ch (S). The remote control device can transmits a command through a channel through which the device under control can receive the command, so that secure remote control can be accomplished.