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.

Date of Patent:
Jun. 04, 2002

Filed:

Jun. 02, 2000
Applicant:
Inventors:

Ikuo Yamato, Hitachi, JP;

Yasuo Notohara, Hitachiohta, JP;

Akihiro Tanba, Hitachi, JP;

Tadashi Fukushima, Hitachi, JP;

Assignee:

Hitachi, Ltd., Tokoyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25D 1/700 ;
U.S. Cl.
CPC ...
F25D 1/700 ;
Abstract

A circuit for controlling the outdoor unit of an air conditioner comprises a microcomputer which controls two brushless motors and a microcomputer which controls the whole outdoor unit. In accordance with the present invention, separation of a function for controlling the brushless motors from a function for controlling the whole outdoor unit can simplify software for said microcomputers.


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