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, 2005
Filed:
Sep. 18, 2000
Junichi Aizawa, Yokohama, JP;
Osamu Kato, Yokosuka, JP;
Mitsuru Uesugi, Yokosuka, JP;
Takeshi Akiyama, Sagamihara, JP;
Junichi Aizawa, Yokohama, JP;
Osamu Kato, Yokosuka, JP;
Mitsuru Uesugi, Yokosuka, JP;
Takeshi Akiyama, Sagamihara, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
Radio sectionmultiplies modulated transmission signals A to D respectively by a carrier with a frequency of fA, fB, fC or fD, thereby performs the frequency conversion, and outputs the resultant signals to switch. Switchswitches between frequency conversion sections fA to fD and between antennas A to D to connect, and timing control sectionoutputs a timing control signal to switching control sectionat time intervals for which timeris preset. Switching control sectioncontrols the switching of switchaccording to switching patterns which are preset in switching pattern storage sectionand which are each indicative of a connection relationship between antennas A to D and frequency conversion sections fA to fD.