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:
Dec. 08, 2009
Filed:
Apr. 27, 2005
Hiroshi Saito, Osaka, JP;
Takeshi Otsuka, Hyogo, JP;
Hiroshi Saito, Osaka, JP;
Takeshi Otsuka, Hyogo, JP;
Panasonic Corporation, Osaka, JP;
Abstract
To guarantee a data transfer rate irrespective of a performance of a memory card. A parameter to show a data transfer efficiency is previously recorded in a recording mediumin which data is written per data size that can be increased and decreased stepwise and the data transfer efficiency is variable in accordance with the data size. Next, a data accessing apparatusissues a parameter acquisition command to the recording medium. The recording mediumwhich received the parameter acquisition command transmits the parameter. The data accessing apparatuscollates the received parameter with the data transfer efficiency required in the data to be written/read to thereby select an optimum data size. Then, the data accessing apparatuswrites/reads the data to the recording mediumbased on the selected optimum data size.