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:
Mar. 23, 2010
Filed:
Nov. 07, 2006
Yoshikazu Terayama, Kawasaki, JP;
Noriaki Mizuguchi, Kawasaki, JP;
Eiji Ishikawa, Kawasaki, JP;
Takashi Toyomaki, Kawasaki, JP;
Kenichi Kaburagi, Kawasaki, JP;
Takeshi Hoshida, Kawasaki, JP;
Jens Rasmussen, Kawasaki, JP;
Akihiko Isomura, Kawasaki, JP;
Yoshikazu Terayama, Kawasaki, JP;
Noriaki Mizuguchi, Kawasaki, JP;
Eiji Ishikawa, Kawasaki, JP;
Takashi Toyomaki, Kawasaki, JP;
Kenichi Kaburagi, Kawasaki, JP;
Takeshi Hoshida, Kawasaki, JP;
Jens Rasmussen, Kawasaki, JP;
Akihiko Isomura, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A calculation processing unit controls temperature of a Peltier device based on a slope of a waveform obtained by subtracting a waveform of a B-arm monitoring signal from a waveform of an A-arm monitoring signal and a value obtained by subtracting a value B of the B-arm monitoring signal from a value A of the A-arm monitoring signal. Similarly, the calculation processing unit controls a phase of the A-arm and a phase of the B-arm. An A-arm side micro-controller controls temperature of an A-arm side heaterbased on the value of the A-arm monitoring signal, and controls the phase of the A-arm. A B-arm side micro-controller controls temperature of a B-arm side heater based on the value B of the B-arm monitoring signal, and controls the phase of the B-arm.