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:
Apr. 25, 2006
Filed:
Jan. 16, 2002
Michinori Kishimoto, Iizuka, JP;
Toshiyuki Wakisaka, Iizuka, JP;
Shoichi Koga, Fukuoka-Ken, JP;
Masami Wada, Fukuoka-Ken, JP;
Michinori Kishimoto, Iizuka, JP;
Toshiyuki Wakisaka, Iizuka, JP;
Shoichi Koga, Fukuoka-Ken, JP;
Masami Wada, Fukuoka-Ken, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An antenna diversity communications device switches communications paths between a plurality of antennas to improve reception in a frequency diversity communications system. Antenna selection is done in response to measurement of the receiving condition of the selected antenna. A memory unit stores frequency difference information between the current channel and the next channel. When the frequency difference between the current channel and the next channel is small enough to predict good correlation between the channels, and if current receiving conditions are good, the current channel remains connected. When the frequency difference between the current channel and the next channel is large enough to predict poor correlation, or if the receiving conditions on the current channel are bad, one of the other channels is selected.