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. 15, 2005
Filed:
Jun. 24, 2003
Yoshiyukie Yamanashi, Shizuoka, JP;
Keiji Satou, Fujikawa, JP;
Masami Ozaki, Fujieda, JP;
Masamichi Mochizuki, Fujinomiya, JP;
Tatsuya Sugiyama, Shizuoka, JP;
Noriyuki Bunkou, Shizuoka, JP;
Yoshiyukie Yamanashi, Shizuoka, JP;
Keiji Satou, Fujikawa, JP;
Masami Ozaki, Fujieda, JP;
Masamichi Mochizuki, Fujinomiya, JP;
Tatsuya Sugiyama, Shizuoka, JP;
Noriyuki Bunkou, Shizuoka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An air-conditioning system having a plurality of air conditioners, each air conditioner including an outdoor transmission/receiving unit for transmitting by superposing the operation data on an outdoor power line for supplying power to an outdoor unit and receiving the operation data superposed on the outdoor power line, an indoor transmission/receiving unit for transmitting by superposing the operation data on an indoor power line for supplying power to an indoor unit and receiving the operation data superposed on the indoor power line, an outdoor conversion unit for transmitting by converting the operation data superposed on the outdoor power line into a signal and receiving and superposing the signal on the outdoor power line, and an indoor conversion unit for transmitting by converting the operation data superposed on the indoor power line into a signal and receiving and superposing the signal on the indoor power line.