GB1331170A - Card reader system - Google Patents
Card reader systemInfo
- Publication number
- GB1331170A GB1331170A GB3552571A GB3552571A GB1331170A GB 1331170 A GB1331170 A GB 1331170A GB 3552571 A GB3552571 A GB 3552571A GB 3552571 A GB3552571 A GB 3552571A GB 1331170 A GB1331170 A GB 1331170A
- Authority
- GB
- United Kingdom
- Prior art keywords
- card
- data
- clock
- reader
- marks
- 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.)
- Expired
Links
Classifications
-
- 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
-
- 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
- G06F3/08—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers from or to individual record carriers, e.g. punched card, memory card, integrated circuit [IC] card or smart card
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
- G06K1/12—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
-
- 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
- G06K7/0163—Synchronisation of sensing process by means of additional timing marks on the record-carrier
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Conveying Record Carriers (AREA)
Abstract
1331170 Card reader RAYTHEON CORP 28 July 1971 [31 Aug 1970] 35525/71 Heading G4M A data reader system has a card carrying both clock and data codes and an optical reader partially enclosing the card and allowing the card to be moved by hand at different speeds. The card 3 carries clock marks 32 and data marks 57 which are a continuation of the clock marks. The card is received in a channel formed by an arm 38 and an aligning base portion 36 in a reader formed from transparent or translucent material. The reader contains a light source 44 and is coated with a opaque material 53 except for a face 46 adjacent the card light is reflected from the card or absorbed by the marks and is detected by photo-cells 51, 52 for the clock and data respectively. Signals from the photo-cells are amplified and the data signals are fed to a latch circuit 72 and the clock signals are fed to a delay circuit producing a short pulse at the trailing edge of the pulse signal. The short pulse is used to reset the latch (Fig. 3, not shown) and feeds a switch 74 to gate the data into a shift register. Data may be read from the shift register at a different rate in series or in parallel under the control of a computer or may be recirculated in the shift register. Several card readers may feed one computer and a card may be a boarding pass for a bus.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US6808870A | 1970-08-31 | 1970-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1331170A true GB1331170A (en) | 1973-09-26 |
Family
ID=22080340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3552571A Expired GB1331170A (en) | 1970-08-31 | 1971-07-28 | Card reader system |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS535495B1 (en) |
| AU (1) | AU458959B2 (en) |
| BE (1) | BE771959A (en) |
| CA (1) | CA953024A (en) |
| CH (1) | CH551047A (en) |
| DE (1) | DE2142584C3 (en) |
| FR (1) | FR2106190A5 (en) |
| GB (1) | GB1331170A (en) |
| NL (1) | NL7111972A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2205672A (en) * | 1987-05-05 | 1988-12-14 | Checkmate Electronics Inc | Manually operable magnetic character recognition system |
| US5054092A (en) * | 1988-03-31 | 1991-10-01 | Checkmate Electronics, Inc. | Hand-operated low cost magnetic character recognition system |
-
1971
- 1971-07-23 AU AU31598/71A patent/AU458959B2/en not_active Expired
- 1971-07-28 GB GB3552571A patent/GB1331170A/en not_active Expired
- 1971-08-25 DE DE19712142584 patent/DE2142584C3/en not_active Expired
- 1971-08-26 CH CH1262871A patent/CH551047A/en not_active IP Right Cessation
- 1971-08-30 BE BE771959A patent/BE771959A/en unknown
- 1971-08-30 CA CA121,702A patent/CA953024A/en not_active Expired
- 1971-08-30 FR FR7131293A patent/FR2106190A5/fr not_active Expired
- 1971-08-31 JP JP6694771A patent/JPS535495B1/ja active Pending
- 1971-08-31 NL NL7111972A patent/NL7111972A/xx not_active Application Discontinuation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2205672A (en) * | 1987-05-05 | 1988-12-14 | Checkmate Electronics Inc | Manually operable magnetic character recognition system |
| GB2205672B (en) * | 1987-05-05 | 1992-01-08 | Checkmate Electronics Inc | Manually operable magnetic character recognition system |
| US5054092A (en) * | 1988-03-31 | 1991-10-01 | Checkmate Electronics, Inc. | Hand-operated low cost magnetic character recognition system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2142584C3 (en) | 1974-09-12 |
| CH551047A (en) | 1974-06-28 |
| NL7111972A (en) | 1972-03-02 |
| AU3159871A (en) | 1973-01-25 |
| BE771959A (en) | 1971-12-31 |
| AU458959B2 (en) | 1975-03-13 |
| CA953024A (en) | 1974-08-13 |
| JPS535495B1 (en) | 1978-02-28 |
| DE2142584B2 (en) | 1974-02-14 |
| FR2106190A5 (en) | 1972-04-28 |
| DE2142584A1 (en) | 1972-03-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |