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:
Aug. 16, 2011
Filed:
Apr. 04, 2006
Makoto Sasaki, Kanagawa, JP;
Yasumi Imagawa, Ishikawa, JP;
Satoshi Kaga, Ishikawa, JP;
Kazuhiko Nakayama, Ishikawa, JP;
Keiko Izumi, Ishikawa, JP;
Makoto Sasaki, Kanagawa, JP;
Yasumi Imagawa, Ishikawa, JP;
Satoshi Kaga, Ishikawa, JP;
Kazuhiko Nakayama, Ishikawa, JP;
Keiko Izumi, Ishikawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
It is a theme of the present invention to provide a diversity receiving device and a receiving scheme switching method, capable of attaining a power saving by executing a switching between a diversity reception and a single reception with high accuracy. A receiving scheme switching portion () switches a receiving mode between a single reception and a diversity reception based on a receiving scheme switching threshold, updates the receiving scheme switching threshold based on the receiving rate calculated by a receiving rate calculating portion (), switches the receiving mode into the single reception in which respective ones of antennas (), radio demodulating portions (), and decoding portions () are employed respectively and also turns OFF respective power supplies of the remaining antenna (or), the remaining radio demodulating portion (or), and the remaining decoding portion (or) when the received quality calculated by the received quality calculating portion () exceeds the receiving scheme switching threshold, and switches the receiving mode into the diversity reception in which the antennas, the radio demodulating portions, and the decoding portions are employed in both branches when the received quality is below the receiving scheme switching threshold.