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:
Dec. 05, 2006
Filed:
May. 14, 2002
Koji Tsukada, Tokyo, JP;
Tohru Hoshi, Yokohama, JP;
Keiko Tanigawa, Kawasaki, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
By adopting a method of requesting a band for each plurality of calls, or a method of requesting a band independently of origination or termination of a call, a method of reducing the frequency of origination of a call is provided. A first aspect may provide that a gate keeper requests security and release of a band not every call, but collectively for a plurality of calls, and the security and the release of a band are requested at frequency less than that of origination or termination of calls. A second aspect may provide that an estimated value of a time series change in necessary band is previously set in a gate keeper, and security and release of a band required for communication are requested depending on a time, but independently of origination and termination of a call.