KR970076730A - How to generate data sector pulse - Google Patents

How to generate data sector pulse Download PDF

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Publication number
KR970076730A
KR970076730A KR1019970021852A KR19970021852A KR970076730A KR 970076730 A KR970076730 A KR 970076730A KR 1019970021852 A KR1019970021852 A KR 1019970021852A KR 19970021852 A KR19970021852 A KR 19970021852A KR 970076730 A KR970076730 A KR 970076730A
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South Korea
Prior art keywords
sector
servo
index
data sector
pattern information
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KR1019970021852A
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Korean (ko)
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KR100228799B1 (en
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정광조
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윤종용
삼성전자 주식회사
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G11B5/59605—Circuits
    • G11B5/59616—Synchronisation; Clocking
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G11B5/59633—Servo formatting
    • G11B5/59655—Sector, sample or burst servo format
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2508—Magnetic discs

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

요 약summary

가. 청구범위에 기재된 발명이 속한 기술분야end. The technical field to which the invention described in the claims belongs

자기 디스크 드라이브에서 데이타섹터펄스 발생하는 방법.How to generate data sector pulses on a magnetic disk drive.

나. 발명이 해결하려고 하는 기술적 과제I. The technical problem that the invention is trying to solve

섹터카운터에 의한 해당 서보섹터의 섹터번호를 계산하고 이를 이용하여 데이타섹터펄스를 발생한다.The sector number of the corresponding servo sector is calculated by the sector counter, and data sector pulses are generated using the sector number.

다. 그 발명의 해결방법의 요지All. Summary of the Solution of the Invention

본 발명은, 자기 디스크 드라이브에서 데이타섹터펄스를 발생하는 방법에 있어서, 각 서보섹터에 대응하는 한 비트의 인덱스패턴정보를 소정 규칙을 가지고 자기디스크상 서보영역의 인덱스영역에 서보라이트하는 제1가정과, 각 존의 특성에 따라 해당 조의 프레임 갯수를 달리하며 각 존의 대표 프레임에 대한 데이타 섹터펄스 타이밍 값을 내부 저장부에 맵핑하는 제2과정과, 소정 트랙에서 읽은 다수의 인덱스패턴정보를 상기 규칙에 의거하여 해석하여 상기 트랙의 소정 섹터에 대한 섹터펄스 타이밍 값을 상기 내부 저장부에 읽어 상기 데이타섹터펄스를 발생하는 게이트 어레이로 로드하는 제3과정으로 이루어진다.The present invention relates to a method for generating data sector pulses in a magnetic disk drive, comprising: a first assumption that servo bit writes an index pattern information of one bit corresponding to each servo sector to an index area of a servo area on a magnetic disk with a predetermined rule; And a second process of mapping the data sector pulse timing value of the representative frame of each zone to the internal storage according to the characteristics of each zone, and a plurality of index pattern information read from a predetermined track. And a third process of reading a sector pulse timing value for a predetermined sector of the track into the internal storage unit and loading the data sector pulse into a gate array that generates the data sector pulse.

라. 발명의 중요한 용도la. Important uses of the invention

데이타섹터펄스 발생Data sector pulse generation

Description

데이타섹터펄스 발생 방법How to generate data sector pulse

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제7a도 내지 제7c도는 본 발명의 실시예에 따라 데이타섹터펄스 발생을 위한 제어 흐름도.7A-7C are flow charts for generating data sector pulses in accordance with an embodiment of the present invention.

Claims (10)

자기 디스크 드라이브에서 데이타섹터펄스를 발생하는 방법에 있어서, 각 서보섹터에 대응하는 한 비트의 인덱스패턴정보를 소정 규칙을 가지고 자기디스크상 서보영역의 인덱스역에 서보라이트하는 제1과정과, 각존의 특성에 따라 해당 존의 프레임 갯수를 달리하며 각 존의 대표 프레임에 대한 데이타 섹터펄스 타이밍 값을 내부 저장부에 맵핑하는 제2과정과, 소정 트랙에서 읽은 다수의 인덱스패턴정보를 상기 규칙에 의거하여 해석하여 상기 트랙의 소정 섹터에 대한 섹터펄스 타이밍 값을 상기 내주 저장부에서 읽어 상기 데이타섹터펄스를 발생하는 게이트 어레이로 로드하는 제3과정으로 이루어짐을 특징으로 하는 방법.A method for generating data sector pulses in a magnetic disk drive, comprising: a first process of servo writing one bit index pattern information corresponding to each servo sector to an index region of a servo region on a magnetic disk with a predetermined rule; The second process of mapping the data sector pulse timing value of the representative frame of each zone to the internal storage according to the characteristics, and the number of frames of the corresponding zone, and a plurality of index pattern information read from a predetermined track based on the above rule. And analyzing and reading a sector pulse timing value of a predetermined sector of the track from the inner storage unit and loading the data sector pulse into a gate array generating the data. 제1항에 있어서, 상기 인덱스비트정보들은 8개의 인덱스비트정보가 하나의 그룹을 이루고 상기 그룹의 다수개의 하나의 트랙에 있음을 특징으로 방법.The method of claim 1, wherein the index bit information includes eight index bit information in one group and in a plurality of tracks of the group. 제2항에 있어서, 상기 그룹은 올바른 인덱스비트정보의 패턴 체크를 위한 키 패턴과 해당 그룹의 정보 제공을 위한 그룹값으로 이루어짐을 특징으로 하는 방법.The method of claim 2, wherein the group comprises a key pattern for checking a pattern of correct index bit information and a group value for providing information of the corresponding group. 제3항에 있어서, 인접한 서보섹터간의 상기 그룹값은 순착적임을 특징으로 하는 방법.4. A method according to claim 3, wherein the group value between adjacent servo sectors is net. 제3항에 있어서, 상기 키패턴은 4개의 인덱스비트정보로 이루어짐을 특징으로 하는 방법.The method of claim 3, wherein the key pattern comprises four index bit information. 제5항에 있어서, 상기 키패턴은 4개의 인덱스비트정보로 이루어짐을 특징으로 하는 방법.The method of claim 5, wherein the key pattern comprises four index bit information. 서보라이트시 각 서보섹터에 대응하는 한 비트의 인덱스패턴정보를 소정 규칙을 가지고 해당 서보영역중 인덱스영역에 기록된 자기디스크와, 각 존의 특성에 따라 해당 존의 프레임 갯수를 달리하며 각 존의 대표 프레임에 대한 데이타 섹터 펄스 타이밍 값을 내부 저장부에 맵핑하고 있는 자기 디스크 드라이브에서 데이타 섹터펄스를 발생하는 방법에 있서, 소정 트랙에서 읽은 다수의 인덱스패턴정보를 입력으로 순서적인 소정 개의 제1인덱스패턴 정보들이 미리 설정된 키이패턴과 일치할 때 상기 제1인덱스패턴정보 뒤에 이어지는 소정 개의 인덱스패턴정보들을 제1그룹값으로 저장하는 제1과정과, 제1과정후 상기 제1그룹값 뒤세 이어지는 소정 개의 제2인덱스패턴정보들이 상기 키이패턴과 상기 키이패턴과 일치할 때 상기 제2인덱스 패턴정보 뒤에 이어지는 소정 개의 인덱스패턴정보들응 제2그룹값으로 저장하는 제2과정과, 상기 제1그룹값과 상기 제2그룹값이 순차적일때 상기 제2그룹값을 이용하여 섹터번호를 계산하는 제3과정과, 상기 제3과정후 인가되는 인덱스패턴정보가 예상 인덱스패턴정보와 일치하면 상기 계산에 의한 섹터번호를 이용하여 현재의 섹터번호를 결정하는 제4과정과 서보영역의 서보정보를 이용하여 현재 트랙이 존번호를 확인하고 상기 현재의 섹터번호에 의거하여 상기 확인된 존의 현재의 섹터번호에 대응된 데이타 섹터 펄스 타이밍 값을 상기 데이타섹터펄스를 발생하는 게이트 어레이로 로드하는 제5과정으로 이루어짐을 특징으로 하는 방법.In servo writing, one-bit index pattern information corresponding to each servo sector has a predetermined rule, and the magnetic disk recorded in the index area among the servo areas and the frame number of the corresponding zone vary according to the characteristics of each zone. A method of generating data sector pulses in a magnetic disk drive that maps data sector pulse timing values for a representative frame to internal storage, wherein a plurality of predetermined first indexes are sequentially inputted with a plurality of index pattern information read from a predetermined track. A first process of storing predetermined index pattern information following the first index pattern information as a first group value when the pattern information matches a preset key pattern; and a predetermined process following the first group value after the first process After the second index pattern information when the second index pattern information matches the key pattern and the key pattern. A second process of storing a predetermined number of index pattern information following a second group value; and calculating a sector number by using the second group value when the first group value and the second group value are sequential. Process and, if the index pattern information applied after the third process matches the expected index pattern information, the fourth process of determining the current sector number using the sector number calculated by the calculation and the servo information of the servo area. A fifth step of the track identifying the zone number and loading a data sector pulse timing value corresponding to the current sector number of the identified zone based on the current sector number into the gate array for generating the data sector pulses. Characterized by the above. 제7항에 있어서, 상기 키이패선, 제1그룹값 및 제2그룹값은 4개의 인덱스패턴정보로 이루어짐을 특징으로 하는 방법.10. The method of claim 7, wherein the key lose line, the first group value, and the second group value comprise four index pattern information. 제7항에 있어서, 상기 데이타섹터펄스 타이밍 값은 하기의 수학식(2)를 이용하여 구함을 특징으로 하는 방법.The method of claim 7, wherein the data sector pulse timing value is calculated using Equation (2) below. 의 나머지의 서보섹터에 대한 타이밍값(단, 나머지가 0이면 제일 마지막 서보섹터에 대한 타이밍 값Timing values for the remaining servo sectors in (if the remainder is 0, timing values for the last servo sector) 자기 디스크 드라이브에서 데이타섹터펄스를 발생하는 방법에 있어서, 각 존의 데이타섹터구조의 반복성을 이용하여 반복되는 데이타섹터구조를 프레임 단위로 구분하고, 상기 해당 존의 특성에 의거하여 각 존마다 프레임내 서보 섹터수를 다르게 하는 과정과, 자기디스크상의 서보섹트를 카운트함에 의해 상기 서보섹터의 번호를 계산하고, 계산된 번호를 이용하여 상기 데이타섹터펄스를 발생하는 과정으로 이루어짐을 특징으로 하는 방법.In a method of generating data sector pulses in a magnetic disk drive, the data sector structure is repeated in units of frames by using the repeatability of the data sector structure of each zone, and within each frame based on the characteristics of the corresponding zone. And varying the number of servo sectors, calculating the number of servo sectors by counting the number of servo sectors on a magnetic disk, and generating the data sector pulses using the calculated numbers. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019970021852A 1996-05-30 1997-05-30 Method for generating data sector pulse KR100228799B1 (en)

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US8/659,736 1996-05-30
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100482354B1 (en) * 1998-01-16 2005-06-08 삼성전자주식회사 Servo sector counting device and servo pattern writing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100482354B1 (en) * 1998-01-16 2005-06-08 삼성전자주식회사 Servo sector counting device and servo pattern writing method

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