AU1475588A - Disk drive controller - Google Patents
Disk drive controllerInfo
- Publication number
- AU1475588A AU1475588A AU14755/88A AU1475588A AU1475588A AU 1475588 A AU1475588 A AU 1475588A AU 14755/88 A AU14755/88 A AU 14755/88A AU 1475588 A AU1475588 A AU 1475588A AU 1475588 A AU1475588 A AU 1475588A
- Authority
- AU
- Australia
- Prior art keywords
- disk drive
- drive controller
- controller
- disk
- drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
- G11B20/10212—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter compensation for data shift, e.g. pulse-crowding effects
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
-
- 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
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
- G11B20/1252—Formatting, e.g. arrangement of data block or words on the record carriers on discs for discontinuous data, e.g. digital information signals, computer programme data
-
- 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
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
- G11B20/1407—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol
- G11B20/1419—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol to or from biphase level coding, i.e. to or from codes where a one is coded as a transition from a high to a low level during the middle of a bit cell and a zero is encoded as a transition from a low to a high level during the middle of a bit cell or vice versa, e.g. split phase code, Manchester code conversion to or from biphase space or mark coding, i.e. to or from codes where there is a transition at the beginning of every bit cell and a one has no second transition and a zero has a second transition one half of a bit period later or vice versa, e.g. double frequency code, FM code
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0673—Single storage device
-
- 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
- G11B2020/1087—Digital recording or reproducing wherein a selection is made among at least two alternative ways of processing
-
- 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
- G11B2020/1087—Digital recording or reproducing wherein a selection is made among at least two alternative ways of processing
- G11B2020/10879—Digital recording or reproducing wherein a selection is made among at least two alternative ways of processing the kind of record carrier being the selection criterion
-
- 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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5544387A | 1987-05-28 | 1987-05-28 | |
US055443 | 1987-05-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU1475588A true AU1475588A (en) | 1988-12-01 |
AU606409B2 AU606409B2 (en) | 1991-02-07 |
Family
ID=21997833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU14755/88A Ceased AU606409B2 (en) | 1987-05-28 | 1988-04-19 | Disk drive controller |
Country Status (5)
Country | Link |
---|---|
AU (1) | AU606409B2 (en) |
CA (1) | CA1309189C (en) |
GB (3) | GB2205467B (en) |
HK (3) | HK72892A (en) |
SG (1) | SG63592G (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5543975A (en) * | 1993-11-12 | 1996-08-06 | Hewlett-Packard Company | Removal of precompensation in a write data signal from a flexible disk controller |
JP3345515B2 (en) * | 1994-08-31 | 2002-11-18 | アイワ株式会社 | Peak shift correction circuit and magnetic recording medium reproducing apparatus using the same |
GB2355095B (en) * | 1996-08-13 | 2001-05-23 | Fujitsu Ltd | Semiconductor circuitry |
TW340262B (en) | 1996-08-13 | 1998-09-11 | Fujitsu Ltd | Semiconductor device, system consisting of semiconductor devices and digital delay circuit |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3510786A (en) * | 1967-07-17 | 1970-05-05 | Ibm | Synchronizing circuit compensating for data bit shift |
US3537084A (en) * | 1967-08-14 | 1970-10-27 | Burroughs Corp | Data storage timing system with means to compensate for data shift |
US3622894A (en) * | 1970-12-07 | 1971-11-23 | Ibm | Predetection signal compensation |
BE788030A (en) * | 1971-08-27 | 1973-02-26 | Siemens Ag | DIGITAL CORRECTION CIRCUIT FOR CORRECTING READING PULSE TRAINS PROVIDED BY MAGNETIC FILM MEMORIES |
US3794987A (en) * | 1972-11-01 | 1974-02-26 | Burroughs Corp | Mfm readout with assymetrical data window |
US3827078A (en) * | 1972-11-01 | 1974-07-30 | Burroughs Corp | Digital data retrieval system with dynamic window skew |
US3831194A (en) * | 1973-07-19 | 1974-08-20 | Honeywell Inf Systems | Digital data recovery system with circuitry which corrects for peak shifting |
US4281356A (en) * | 1979-11-28 | 1981-07-28 | R. C. Sanders Technology Systems, Inc. | Magnetic disk memory |
JPS6063704A (en) * | 1983-09-19 | 1985-04-12 | Hitachi Ltd | Magnetic recorder |
US4566044A (en) * | 1984-10-29 | 1986-01-21 | International Business Machines Corporation | Direction-constrained ternary codes using peak and polarity detection |
IT1200426B (en) * | 1985-03-21 | 1989-01-18 | Honeywell Inf Systems | DIGITAL APPARATUS FOR RECOVERY SYSTEM OF BINARY INFORMATION RECORDED ON MAGNETIC MEDIA |
-
1987
- 1987-08-25 GB GB8720026A patent/GB2205467B/en not_active Expired - Fee Related
-
1988
- 1988-04-19 AU AU14755/88A patent/AU606409B2/en not_active Ceased
- 1988-04-19 CA CA000564533A patent/CA1309189C/en not_active Expired - Fee Related
-
1991
- 1991-05-20 GB GB9110826A patent/GB2243059B/en not_active Expired - Fee Related
- 1991-05-20 GB GB9110827A patent/GB2243060B/en not_active Expired - Fee Related
-
1992
- 1992-06-18 SG SG63592A patent/SG63592G/en unknown
- 1992-09-24 HK HK728/92A patent/HK72892A/en unknown
- 1992-09-24 HK HK727/92A patent/HK72792A/en unknown
- 1992-12-03 HK HK956/92A patent/HK95692A/en unknown
Also Published As
Publication number | Publication date |
---|---|
GB2243060A (en) | 1991-10-16 |
SG63592G (en) | 1992-09-04 |
HK72792A (en) | 1992-10-02 |
CA1309189C (en) | 1992-10-20 |
GB2243060B (en) | 1992-02-05 |
GB9110827D0 (en) | 1991-07-10 |
GB9110826D0 (en) | 1991-07-10 |
GB2243059B (en) | 1992-02-05 |
HK72892A (en) | 1992-10-02 |
GB2205467B (en) | 1992-02-12 |
GB8720026D0 (en) | 1987-09-30 |
AU606409B2 (en) | 1991-02-07 |
HK95692A (en) | 1992-12-11 |
GB2205467A (en) | 1988-12-07 |
GB2243059A (en) | 1991-10-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU575920B2 (en) | Disk drive apparatus | |
AU587965B2 (en) | Disk drive system | |
GB2186734B (en) | Disk drive | |
HK1004578A1 (en) | Disk drive apparatus | |
GB8709170D0 (en) | Disk drive | |
GB8814681D0 (en) | Head lifter for disk drive | |
AU8239382A (en) | Disk drive | |
AU1417688A (en) | Swing drive mechanism | |
AU2790984A (en) | Disk drive controller | |
AU591101B2 (en) | Electromechanical controller | |
AU2401888A (en) | Magnetron drive apparatus | |
AU5511686A (en) | Rack drive | |
AU2791184A (en) | Disk drive controller | |
AU616025B2 (en) | Electrically-powered drive apparatus | |
AU580854B2 (en) | Microfloppy disc drive head cleaner | |
EP0347812A3 (en) | Disc drive apparatus | |
AU1475588A (en) | Disk drive controller | |
AU2792184A (en) | Disk drive controller | |
AU8208587A (en) | An improved conveyor drive unit | |
KR0115899Y1 (en) | Auto-ejector for disk drive | |
EP0283921A3 (en) | Disk drive device | |
EP0336706A3 (en) | Disk drive apparatus | |
AU564250B2 (en) | Disk servo drive controller | |
AU2824589A (en) | Controller | |
AU2619788A (en) | Roller-brush drive |