Magnetic recording/reproducing with added intersymbol interferen

Details Magnetic recording/reproducing with added intersymbol interferen Magnetic recording/reproducing with added intersymbol interferen

1994-02-01

1996-07-23

Kim, W. Chris

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

360 45, 360 65, G11B 509, G11B 5035

Patent

active

055395880

ABSTRACT:
A magnetic recording/reproducing uses a wide frequency band of a DC component to the next lowest spectral null frequency point and higher by using an existing recording/reproducing head and medium. Intersymbol interference is added to a magnetic recording channel so that an impulse response comes to a partial-response channel shown by polynomial 1-D.sup.n (D.sup.n is an n-bit signal delay); in which T is a Nyquist interval (reproduction-bit time interval), the values of (n>2) and T are selected by assuming equal frequency interval between the spectral null frequency points 1
T, and thereby a symbol string having a Nyquist frequency equal to or higher than the second spectral null frequency point from the lowest frequency side excluding the vicinity of the DC component of the recording/reproducing characteristic is recorded or reproduced.

REFERENCES:
patent: 4571734 (1986-02-01), Dolivo et al.
patent: 4984099 (1991-01-01), Kanota et al.
patent: 5036524 (1991-07-01), Bergmans et al.
patent: 5270876 (1993-12-01), Inoue et al.
patent: 5276709 (1994-01-01), Kazawa et al.
IEEE Transactions on Communications, vol. COM-23, No. 9, Sep. 1975, "Partial-Response Signaling", Kabal et al, pp. 921-934.
IEEE Transactions on Magnetis, vol. MAG-16, No. 5, Sep. 1980, "Studies of the Perpendicular Magnetization Mode in Co-Cr Sputtered Films", Iwasaki et al, pp. 1111-1113.

Affiliated with

Also associated with

Rating

Magnetic recording/reproducing with added intersymbol interferen 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/reproducing with added intersymbol interferen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic recording/reproducing with added intersymbol interferen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-717937