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:
Sep. 06, 2005
Filed:
Mar. 03, 2003
Applicants:
Takuji Uneyama, Yamatokoriyama, JP;
Manabu Onozaki, Nara, JP;
Inventors:
Takuji Uneyama, Yamatokoriyama, JP;
Manabu Onozaki, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F012/00 ; G06F013/00 ;
U.S. Cl.
CPC ...
Abstract
An arbitration circuit adjusts timings of a write request signal from a first external device and a read request signal from a second external device. An RAM performs data write/data read in response to the external write request/read request. A next-state function is provided, which has a function to calculate a write address/read address to be input to the RAM in response to the external write request/read request, and a function to accurately count data stored in a FIFO.