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. 12, 2013
Filed:
Apr. 28, 2009
Tsutomu Baba, Nagano, JP;
Tsutomu Baba, Nagano, JP;
Nidec Sankyo Corporation, Nagano, JP;
Abstract
A method for detecting an improper removal of the electronic equipment. In the method, having received a command from a higher-level device, the electronic equipment (card reader) executes processing operations in accordance with the command. The electronic equipment includes a first RAM for saving electronic information including the confidential data, a detection means (such as a switching circuit) for detecting the improper removal of the electronic equipment, a power supply control IC for shutting off a power supply to the RAM in accordance with a signal coming from the detection means, and a second RAM being separate from and independent of the first RAM. Data saved in the RAM is not deleted even if the power supply is shut off by the power supply control IC. Then, the detection means is activated after the confidential data saved in the first RAM is copied to the second RAM.