Magnetic recording apparatus

Details Magnetic recording apparatus Magnetic recording apparatus

2005-07-19

2005-07-19

Tran, Sinh (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S078110

Reexamination Certificate

active

06920010

ABSTRACT:
A magnetic recording apparatus which, even when crosstalk occurs between signals from three photosensitive parts of a photodetector, can detect a high-precision tracking error signal with stability. In a signal processing unit which processes electrical signals outputted from a photosensitive part of a photodetector to detect a tracking error signal, an output signal from and I-V converting unit is subjected to voltage division by voltage-dividing units, and voltage-divided output signals and output signals from I-V converting units are subjected to differential calculation by differential arithmetic units, respectively.

REFERENCES:
patent: 5636201 (1997-06-01), Ooki
patent: 5892741 (1999-04-01), Kadowaki et al.
patent: 5946283 (1999-08-01), Kobori et al.
patent: 6009054 (1999-12-01), Kadowaki et al.
patent: 6128155 (2000-10-01), Sugawara et al.
patent: 6327110 (2001-12-01), Sano et al.
patent: 6327235 (2001-12-01), Hayashi
patent: 6407378 (2002-06-01), Sakaguchi
patent: 6442114 (2002-08-01), Ishibashi et al.
patent: 6504667 (2003-01-01), Sugawara
patent: 6563662 (2003-05-01), Smith
patent: 6574066 (2003-06-01), Stubbs et al.
patent: 6580580 (2003-06-01), Kojima et al.
patent: 6628599 (2003-09-01), Maeda et al.
patent: 0753851 (1996-07-01), None
patent: 3-252925 (1991-11-01), None
patent: 5-81687 (1993-04-01), None
patent: 11-175990 (1999-07-01), None
Alan B. Marchant, “Optical Recording”, 1990, pp. 178-179.

Affiliated with

Also associated with

Rating

Magnetic recording apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic recording apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic recording apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3375876