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:
Jul. 09, 2002
Filed:
Mar. 30, 1999
Shinkichi Gama, Yokohama, JP;
Yoshiki Okumura, Yokohama, JP;
Takeshi Nagase, Yokohama, JP;
Tomohiro Hayashi, Yokohama, JP;
Yoshihiro Takamatsuya, Yokohama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A memory card realizes two interface standards. The memory card includes an input terminal receiving a grounded or open-circuited signal from a host unit when using the memory card in conformance with a first interface standard, and receiving a binary signal from the host unit when using the memory card in conformance with a second interface standard, a first circuit acquiring standard information which indicates the first or second interface standard, from a signal issued from the host unit, a second circuit outputting a high-level voltage when using the memory card in conformance with the first interface standard and outputting a high-impedance signal when using the memory card in conformance with the second interface standard, depending on the standard information acquired by the first circuit, and a resistor coupling an output of the second circuit and the input terminal.