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:
Feb. 20, 1990
Filed:
Dec. 27, 1988
Keiko Kitagawa, Tokyo, JP;
Osamu Yamakami, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
In a broadcast satellite receiver having a power source circuit for supplying a power source voltage to a tuner circuit through a power switch and a socket or receptacle for connecting an external appliance, such as, a video tape recorder, to the power source circuit; power consumption by the video tape recorder connected through the socket or receptacle to the power source circuit of the receiver is detected, and the power switch is closed for operating the tuner circuit when the detected value of power consumption by the video tape recorder is characteristic of operation of the latter, for example, when the power consumption exceeds by a predetermined amount a previously detected value of power consumption in a standby condition of the video tape recorder.