US Patent 7483362 Recording/reproducing apparatus

Patent 7483362 was granted and assigned to Hitachi on January, 2009 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Hitachi

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

74833620

Patent Inventor Names

Takeshi Harada0

Mieko Ishii0

Date of Patent

January 27, 2009

Patent Application Number

111923960

Date Filed

July 29, 2005

Patent Primary Examiner

‌

Thang V. Tran

Patent abstract

In a recording/reproducing apparatus having a large number of probes, being still usable continuously when several pieces of the probes are in trouble, wherein a plural number of probes are so disposed that they can make recording and/or reproducing onto the same recording area, which is in charge of the probes, respectively, and when defect, such as, a trouble is generated within a first probe, that defect is detected, automatically, so as to exchanged into a spare probe built within the frame, thereby compensating the defect.