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. 13, 2007
Filed:
Jul. 29, 2004
Atousa Soroushi, North Vancouver, CA;
Patrick Wai-tong Leung, Vancouver, CA;
Atousa Soroushi, North Vancouver, CA;
Patrick Wai-Tong Leung, Vancouver, CA;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A power cut-off protection control circuit and method. A memory pair and a selecting circuit are provided. The memory pair stores data made available at respective storage inputs of first and second storage elements of the pair and provides the stored data at respective storage outputs thereof. The memory pair has a polarity selecting input through which the output of one of the first and second storage elements is caused to correspond to a first control state of the switch and the output of the other of the first and second storage elements is caused to correspond to a second control state of the switch. The selecting circuit has inputs coupled to the respective storage outputs of the memory pair and an output coupled to a control line of the switch for controlling the switch. A selecting line of the selecting circuit selects between the inputs, for selecting one or the other of the storage outputs of the first and second storage elements.