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:
May. 23, 2006
Filed:
Oct. 28, 2003
Koji Nitta, Fukuoka, JP;
Katsumi Nakagawa, Kasuga, JP;
Shinji Fukuda, Fukuoka, JP;
Yoshihiro Takehisa, Fukuoka, JP;
Takatsugu Ito, Chikushino, JP;
Koji Nitta, Fukuoka, JP;
Katsumi Nakagawa, Kasuga, JP;
Shinji Fukuda, Fukuoka, JP;
Yoshihiro Takehisa, Fukuoka, JP;
Takatsugu Ito, Chikushino, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
For the purpose of being capable of performing direct inter-handset communications while maintaining inter-handset communications via a base unit, smoothly making a transition from inter-handset communications via a base unit to direct inter-handset communications, and switching to inter-handset communications via a base unit without releasing the communications even in case direct inter-handset communications cannot be established, a local handset includes a direct inter-handset communications controller and a direct inter-handset communications transition controller for making control to establish direct inter-handset communications while maintaining communications with a base unit as well as transmitting control channels for direct inter-handset communications in vacant slots in the receiving time zones for communications with the base unit, while a distant handset includes a direct inter-handset communications controller and a direct inter-handset communications transition controller for scanning control channels for direct inter-handset communications in the time zones other than the slots occupied by communications with the base unit