GB845050A - Improvements in or relating to statistical record sensing systems - Google Patents
Improvements in or relating to statistical record sensing systemsInfo
- Publication number
- GB845050A GB845050A GB12410/58A GB1241058A GB845050A GB 845050 A GB845050 A GB 845050A GB 12410/58 A GB12410/58 A GB 12410/58A GB 1241058 A GB1241058 A GB 1241058A GB 845050 A GB845050 A GB 845050A
- Authority
- GB
- United Kingdom
- Prior art keywords
- counter
- pulses
- gate
- trigger
- record
- 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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
-
- 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 Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Mechanical Engineering (AREA)
- Artificial Intelligence (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Human Computer Interaction (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
845,050. Statistical record card apparatus. SIEMENS & HALSKE A.G. April 18, 1938 [April 18, 1957], No. 12410/58. Class 106 (1). A record to be checked has data thereon recorded in such a way that during sensing a train of ten signal pulses is produced for each character read, one pulse in the train being unique, and there are reference marks on the record such that ten synchronizing pulses are produced for each train of signal pulses, and means are provided for counting coincidences between synchronizing pulses and ordinary data signals and for indicating if the number of coincidences is ten or eight. A digit is recorded by darkening the appropriate column position and the record 1, Fig. 1, is sensed photoelectrically by being moved past photo-cells 7, 9. Cell 7, receiving light from the synchronization column, and cell 9, receiving light from one of the record columns, are connected through amplifiers 10, 11, Fig. 2, each having two outputs, to gates 12, 14, 16 and 17. Gates 12 and 14 control triggers 13, 15 and gates 16, 17 supply pulses to counters 18 and 19, counter 18 having ten steps and counter 19 eleven. If the first record position (digit " 1 ") is not marked both amplifiers produce positive pulses on those outputs connected to gate 17, the third input of which is from trigger 15 normally providing a positive control voltage. Coincidence between white spaces thereby causes a pulse to pass through gate 17 to counter 19. Upon detection of a marked column position, trigger 15 is set by a signal through gate 12, trigger 13 and gate 14. Trigger 15 then applies a negative voltage to close gate 17, so that no more pulses can pass to counter 19, and a positive voltage to gate 16, which opens to allow subsequent coincidental pulses to pass to counter 18. Pulses before the detection of a column mark therefore pass to counter 19 and those after it pass to counter 18 so that the contents of these counters should be complements to nine, e.g. four in counter 19 and five in 18. The ten stages of the counters are gated together to determine whether the numbers held therein are complementary and if they are, one of the gates (e.g. 25) passes a pulse via Or gate 23 to gate 24 which passes the output of the tenth stage of a counter 20 to set trigger 26 (counter 20 receives the sync. pulses and registers ten at the end of the sensing operation). Trigger 26 allows the set stages of one or both counters 18, 19 to be transmitted as output signals via code converter 27. If no column position has been marked counter 19 will count up to ten, a signal from this stage setting an error trigger 28. If two positions are marked in the same column the counters 18, 19 do not hold complementary numbers, so that gate 23 continues to produce a negative signal which passes through gate 29 when counter 20 reaches ten and sets error trigger 30. In a simpler embodiment a counter is adapted to count all data pulses except the one corresponding to the marked position. At the receipt of this, the value in the counter is transferred to a data store. The sync. pulses are counted as before. A correct column causes the first counter to register nine and the sync. pulse counter to register ten. These stages are gated together and control read-out of the sensed data from the store. Errors are detected by means similar to those described in connection with Fig. 2. Specification 845,049 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL356946X | 1957-04-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB845050A true GB845050A (en) | 1960-08-17 |
Family
ID=19785255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12410/58A Expired GB845050A (en) | 1957-04-18 | 1958-04-18 | Improvements in or relating to statistical record sensing systems |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE566924A (en) |
CH (1) | CH356946A (en) |
DE (1) | DE18140C (en) |
FR (1) | FR1212736A (en) |
GB (1) | GB845050A (en) |
NL (4) | NL290008A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2393373A1 (en) * | 1977-06-03 | 1978-12-29 | Obsa Spa |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1276378B (en) * | 1960-10-21 | 1968-08-29 | Basf Ag | Device for automatic encryption and storage of topologically representable structures, in particular chemical structural formulas, circuit diagrams and schemes |
US3303329A (en) * | 1962-12-03 | 1967-02-07 | Ibm | Mark sensing system |
DE1224970B (en) * | 1964-08-17 | 1966-09-15 | Licentia Gmbh | Arrangement for scanning a coded grid scale |
-
0
- NL NL123673D patent/NL123673C/xx active
- BE BE566924D patent/BE566924A/xx unknown
- NL NL216470D patent/NL216470A/xx unknown
- NL NL104624D patent/NL104624C/xx active
- DE DENDAT18140D patent/DE18140C/en active Active
- NL NL290008D patent/NL290008A/xx unknown
-
1958
- 1958-04-18 FR FR1212736D patent/FR1212736A/en not_active Expired
- 1958-04-18 GB GB12410/58A patent/GB845050A/en not_active Expired
- 1958-04-18 CH CH356946D patent/CH356946A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2393373A1 (en) * | 1977-06-03 | 1978-12-29 | Obsa Spa |
Also Published As
Publication number | Publication date |
---|---|
DE18140C (en) | |
CH356946A (en) | 1961-09-15 |
NL123673C (en) | |
NL290008A (en) | |
NL104624C (en) | |
NL216470A (en) | |
FR1212736A (en) | 1960-03-25 |
BE566924A (en) |
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