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. 21, 1993
Filed:
Jun. 03, 1992
Satoru Yoshida, Shimizu, JP;
Takashi Kato, Fujieda, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A system for sending programs for controlling an air conditioner, comprising at least one indoor unit and an outdoor unit connected to the indoor unit, the outdoor unit including a first memory for storing a program for controlling the room condition, a second memory for storing a program for controlling the outdoor unit in cooperation with the room condition control program, and a communication circuit for sending contents of the program in the memory to the indoor unit, the indoor unit including a third memory for storing a receiving execution program for executing the receiving of the room condition control program from the outdoor unit, a communication circuit for receiving the program from the outdoor unit, and a fourth memory for storing the program received. The third memory has stored therein the receiving program at an address at which the execution thereof is started when power is turned on. The control programs may be sent from the central control unit to the outdoor unit connected thereto and also to the indoor unit connected to the outdoor unit to implement control.