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:
Jan. 24, 2006
Filed:
Mar. 18, 2004
Takeshi Toda, Kawasaki, JP;
Yuuta Nakaya, Kawasaki, JP;
Yasuyuki Oishi, Kawasaki, JP;
Kaoru Yokoo, Kawasaki, JP;
Shinsuke Hara, Suita, JP;
Yuji Irie, Suita, JP;
Takeshi Toda, Kawasaki, JP;
Yuuta Nakaya, Kawasaki, JP;
Yasuyuki Oishi, Kawasaki, JP;
Kaoru Yokoo, Kawasaki, JP;
Shinsuke Hara, Suita, JP;
Yuji Irie, Suita, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An adaptive controller adaptively controls a plurality of variable high frequency devices. A calculation part calculates a scalar function value by using a signal varied in accordance with impedances of the variable high frequency devices, a reference signal, and a predetermined scalar function. An impedance variation part creates a signal that sequentially varies the impedances of the variable high frequency devices. A determination part determines, when the impedance of one of the variable high frequency devices is varied, whether a direction in which the scalar function value is varied is in a predetermined sloped direction. The impedance variation part includes a first variation part that, when a decision result in the determination part is in the predetermined direction, creates a signal that further varies the impedance of the one of the variable high frequency devices in the predetermined sloped direction. The impedance variation part also includes a second variation part that, when the decision result in the determination part is not in the predetermined sloped direction, creates one of a signal that varies the impedance of the one of the variable high frequency devices in an oppositely sloped direction and a signal that varies the impedance of another one of the variable high frequency devices.