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. 05, 2005
Filed:
Mar. 20, 2002
Hiromichi Yamada, Hitachi, JP;
Dai Fujii, Tokai, JP;
Yasuhiro Nakatsuka, Tokai, JP;
Takashi Hotta, Hitachi, JP;
Kotaro Shimamura, Hitachinaka, JP;
Tatsuki Inuduka, Mito, JP;
Takanaga Yamazaki, Tama, JP;
Hiromichi Yamada, Hitachi, JP;
Dai Fujii, Tokai, JP;
Yasuhiro Nakatsuka, Tokai, JP;
Takashi Hotta, Hitachi, JP;
Kotaro Shimamura, Hitachinaka, JP;
Tatsuki Inuduka, Mito, JP;
Takanaga Yamazaki, Tama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A micro-controller includes a dictionary memory for storing instruction codes which appear in a program, and a compressed code memory for storing compressed codes each converted from each of the instruction codes included in the program. Each compressed code has a word length sufficiently long to identify all instruction codes included in the program. Each compressed code has a value indicative of an address in the dictionary memory at which an associated instruction code is stored. The micro-controller is responsive to an instruction code read request which specifies an address of a compressed code to read the compressed code stored in the specified address in the compressed code memory, and to subsequently read an instruction code stored in an address indicated by the compressed code in the dictionary memory.