GB9223923D0 - Writing of a first set of data in dependence upon reading a second set of data - Google Patents
Writing of a first set of data in dependence upon reading a second set of dataInfo
- Publication number
- GB9223923D0 GB9223923D0 GB929223923A GB9223923A GB9223923D0 GB 9223923 D0 GB9223923 D0 GB 9223923D0 GB 929223923 A GB929223923 A GB 929223923A GB 9223923 A GB9223923 A GB 9223923A GB 9223923 D0 GB9223923 D0 GB 9223923D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- data
- dependence
- writing
- reading
- 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
- G11B20/16—Digital recording or reproducing using non self-clocking codes, i.e. the clock signals are either recorded in a separate clocking track or in a combination of several information tracks
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/08—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
- G06K19/10—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards
- G06K19/12—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards the marking being sensed by magnetic means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
- G06Q20/34—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
- G06Q20/347—Passive cards
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
- G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
- G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
- G07F7/12—Card verification
- G07F7/125—Offline card verification
-
- 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
-
- 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00884—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9223923A GB2272560B (en) | 1992-11-14 | 1992-11-14 | Writing of a second set of data in dependence upon reading a first set of data |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9223923A GB2272560B (en) | 1992-11-14 | 1992-11-14 | Writing of a second set of data in dependence upon reading a first set of data |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9223923D0 true GB9223923D0 (en) | 1993-01-06 |
GB2272560A GB2272560A (en) | 1994-05-18 |
GB2272560B GB2272560B (en) | 1996-07-17 |
Family
ID=10725109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9223923A Expired - Lifetime GB2272560B (en) | 1992-11-14 | 1992-11-14 | Writing of a second set of data in dependence upon reading a first set of data |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2272560B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4545832B2 (en) * | 1997-11-10 | 2010-09-15 | ティーエスエスアイ システムズ リミティド | How to label items |
CN102446525B (en) * | 2010-09-30 | 2015-04-22 | 山东新北洋信息技术股份有限公司 | Magnetic recording method and equipment |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2186732B (en) * | 1986-01-15 | 1989-11-01 | Uniqey | Improvements in encoding magnetic cards |
FR2637102B1 (en) * | 1988-09-27 | 1990-11-16 | Cga Hbs | SYSTEM FOR READING AND ENCODING A MAGNETIC TRACK CARRIED BY A SUPPORTED DOCUMENT, BY MANUAL MOVING OF THE DOCUMENT |
-
1992
- 1992-11-14 GB GB9223923A patent/GB2272560B/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB2272560A (en) | 1994-05-18 |
GB2272560B (en) | 1996-07-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PE20 | Patent expired after termination of 20 years |
Expiry date: 20121113 |