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.:

US 7840541 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 23, 2010

Filed:

Mar. 31, 2005
Applicants:

Hideaki Mukaida, Daito, JP;

Katsuyoshi Oki, Daito, JP;

Akira Imanaga, Daito, JP;

Inventors:

Hideaki Mukaida, Daito, JP;

Katsuyoshi Oki, Daito, JP;

Akira Imanaga, Daito, JP;

Assignee:

Sanyo Electric Co., Ltd., Moriguchi-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

This invention has for its object to eliminate failure of correct recording on a recording medium in an on-vehicle audio recording/reproduction device due to an instantaneous power cut-off or the like. In order to achieve this object, a file system is used for managing files hierarchically by using files having information and a directory as a storage place of a plurality of files so that predetermined information is recorded in a work sector for backup before performing the primary recording. The work sector is selected from a work sector area having a plurality of sectors and the work sector has recorded the number of mountings of the file system. Thus, an optimal work sector is used for data recovery.


Find Patent Forward Citations

Mukaida, Hideaki. (2010). Information recording method and information recording/reproduction device (U.S. Patent No. 7840541). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7840541

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…