JPS56500434A - - Google Patents
Info
- Publication number
- JPS56500434A JPS56500434A JP50102380A JP50102380A JPS56500434A JP S56500434 A JPS56500434 A JP S56500434A JP 50102380 A JP50102380 A JP 50102380A JP 50102380 A JP50102380 A JP 50102380A JP S56500434 A JPS56500434 A JP S56500434A
- Authority
- JP
- Japan
- 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.)
- Pending
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
- G11B20/14—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
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/01—Details
- G06K7/016—Synchronisation of sensing process
Landscapes
- Engineering & Computer Science (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
- Credit Cards Or The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/032,130 US4264934A (en) | 1979-04-23 | 1979-04-23 | Rate adaptive writer for a card having a magnetizable surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56500434A true JPS56500434A (ja) | 1981-04-02 |
Family
ID=21863264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50102380A Pending JPS56500434A (ja) | 1979-04-23 | 1980-03-17 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4264934A (ja) |
| JP (1) | JPS56500434A (ja) |
| CA (1) | CA1127761A (ja) |
| ES (1) | ES490742A0 (ja) |
| FR (1) | FR2455319B1 (ja) |
| GB (1) | GB2063535B (ja) |
| WO (1) | WO1980002341A1 (ja) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5753810A (en) * | 1980-07-24 | 1982-03-31 | Nippon Denso Co Ltd | Magnetic card recorder |
| US4381524A (en) * | 1980-12-08 | 1983-04-26 | International Business Machines Corporation | Self-clocking write head |
| US4345278A (en) * | 1980-12-08 | 1982-08-17 | International Business Machines Corporation | Acceleration correction for self-clocking write-head |
| US4394621A (en) * | 1980-12-08 | 1983-07-19 | International Business Machines Corporation | Electronic velocity measurement especially for self-clocking write head |
| EP0053224B1 (en) * | 1980-12-08 | 1986-07-30 | International Business Machines Corporation | Magnetic recording apparatus |
| US4486653A (en) * | 1981-10-28 | 1984-12-04 | International Business Machines | Adaptive rate card data reproducing and storing apparatus |
| US4626670A (en) * | 1983-06-16 | 1986-12-02 | Xico, Inc. | Method and system for decoding time-varying, two-frequency, coherent-phase data |
| US4752837A (en) * | 1983-10-26 | 1988-06-21 | Deland Jr Robert S | Data synchronizer for use with a variable rate input source |
| US4791283A (en) * | 1986-06-03 | 1988-12-13 | Intellicard International, Inc. | Transaction card magnetic stripe emulator |
| US5453603A (en) * | 1994-01-04 | 1995-09-26 | Best Lock Corporation | Method and apparatus for decoding bi-phase encoded data |
| DE19821931C2 (de) * | 1998-05-15 | 2000-05-18 | Siemens Nixdorf Inf Syst | Einrichtung zum Aufzeichnen binärer Informationen auf einer Magnetspeicherkarte unter Verwendung einer DMA-Einheit |
| JP3748178B2 (ja) * | 1999-08-19 | 2006-02-22 | 日立オムロンターミナルソリューションズ株式会社 | 磁気媒体処理装置 |
| EP2256702A1 (en) | 2009-05-28 | 2010-12-01 | Dmitri Pakhomov | Portable card writer, card system and method of using a protable card writer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5240311A (en) * | 1975-09-26 | 1977-03-29 | Sankyo Seiki Mfg Co Ltd | Data writing equipment for magnetic cards |
| JPS52146611A (en) * | 1976-06-01 | 1977-12-06 | Star Mfg Co | Magnetic recorder |
| JPS5418715A (en) * | 1977-07-12 | 1979-02-13 | Star Mfg Co | Manual information signal recorder |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE755662A (fr) * | 1969-09-17 | 1971-02-15 | Burroughs Corp | Procede et appareil d'enregistrement et de detection magnetiques par modulation de frequence |
| US3708748A (en) * | 1970-04-27 | 1973-01-02 | Ibm | Retrospective pulse modulation and apparatus therefor |
| US3914789A (en) * | 1973-11-19 | 1975-10-21 | Ibm | Manually operated magnetic card encoder |
| JPS5085320A (ja) * | 1973-11-27 | 1975-07-09 | ||
| DE2544119A1 (de) * | 1975-10-02 | 1977-04-14 | Interroll Foerdertechnik Gmbh | Anordnung zur synchronisierung einer informations-leseeinrichtung mit der geschwindigkeit eines informationstraegers |
| US4053736A (en) * | 1976-04-02 | 1977-10-11 | Burroughs Corporation | Digital rate compensator for a card reader |
| US4176259A (en) * | 1976-10-04 | 1979-11-27 | Honeywell Information Systems, Inc. | Read apparatus |
-
1979
- 1979-04-23 US US06/032,130 patent/US4264934A/en not_active Expired - Lifetime
-
1980
- 1980-03-17 WO PCT/US1980/000272 patent/WO1980002341A1/en unknown
- 1980-03-17 GB GB8040307A patent/GB2063535B/en not_active Expired
- 1980-03-17 JP JP50102380A patent/JPS56500434A/ja active Pending
- 1980-03-27 CA CA348,600A patent/CA1127761A/en not_active Expired
- 1980-04-17 FR FR8008626A patent/FR2455319B1/fr not_active Expired
- 1980-04-21 ES ES490742A patent/ES490742A0/es active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5240311A (en) * | 1975-09-26 | 1977-03-29 | Sankyo Seiki Mfg Co Ltd | Data writing equipment for magnetic cards |
| JPS52146611A (en) * | 1976-06-01 | 1977-12-06 | Star Mfg Co | Magnetic recorder |
| JPS5418715A (en) * | 1977-07-12 | 1979-02-13 | Star Mfg Co | Manual information signal recorder |
Also Published As
| Publication number | Publication date |
|---|---|
| ES8104612A1 (es) | 1981-04-16 |
| GB2063535B (en) | 1983-08-24 |
| FR2455319B1 (fr) | 1987-04-17 |
| CA1127761A (en) | 1982-07-13 |
| US4264934A (en) | 1981-04-28 |
| WO1980002341A1 (en) | 1980-10-30 |
| GB2063535A (en) | 1981-06-03 |
| FR2455319A1 (fr) | 1980-11-21 |
| ES490742A0 (es) | 1981-04-16 |