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:
Oct. 01, 2002
Filed:
Dec. 15, 1999
Takafumi Ueno, Nara, JP;
Junichi Komeno, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A data transfer apparatus and a data transfer system intended to transfer data continuously input or output to/from a main memory without any interruption and to transfer continuous data on a general-purpose bus such as a PCI bus, and a recording medium storing a program that commands a computer to execute all or some of functions of each component of the data transfer apparatus or the data transfer system. If it is supposed that a capacity of a write buffer memory is CAPW, an input rate of continuously input data is T , and a maximum assumed value of an interval of bus access permissions issued by a CPU is TW, data omissions can be prevented by setting CAPW, T and TW at values that satisfy: CAPW≧TW×T