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, 2011
Filed:
May. 29, 2007
Atsushi Shikata, Higashimurayama, JP;
Kunihiro Katayama, Chigasaki, JP;
Masato Matsumoto, Akishima, JP;
Kazuto Izawa, Musashino, JP;
Motoki Kanamori, Tachikawa, JP;
Atsushi Shikata, Higashimurayama, JP;
Kunihiro Katayama, Chigasaki, JP;
Masato Matsumoto, Akishima, JP;
Kazuto Izawa, Musashino, JP;
Motoki Kanamori, Tachikawa, JP;
Renesas Electronics Corporation, Kawasaki-shi, JP;
Abstract
A controllerof a memory card is a provided with a command decoding circuitfor decoding commands issued by a host HT, a command enable registerin which the validity or invalidity of the received command, and a command detection signal generating circuitfor detecting a valid command on the basis of the result of decoding by the command decoding circuitand a value set by the command enable register. If the command enable registerreceives a validly set command, the command detection signal generating circuitwill supply a detection signal to a control unitto execute processing prescribed for each command. the command enable registerreceives an invalidly set command, no detection signal will be supplied, and the command will be ignored.