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:
Jun. 30, 1992
Filed:
Aug. 22, 1989
Toru Shinagawa, Toride, JP;
Hitachi Maxell, Ltd., Osaka, JP;
Abstract
An IC card including a processor, a first memory for storing therein a system program which runs on the processor and which is associated with a basic operation of the IC card, a second memory for storing therein an application program which runs on the processor and which corresponds to a usage of the IC card, a third memory for storing therein data processed by the processor, an input/output unit for effecting input and output operations of programs and data, a program stop section for stopping the program being executed on the processor at a specified address and a data output section for supplying the input/output unit with either one of a content of a register in the processor and a content of an area at an address of at least one of the first, second, and third memories when the program running on the processor is stopped.