GB1438840A – Optical static card reader
– Google Patents
GB1438840A – Optical static card reader
– Google Patents
Optical static card reader
Info
Publication number
GB1438840A
GB1438840A
GB4808873A
GB4808873A
GB1438840A
GB 1438840 A
GB1438840 A
GB 1438840A
GB 4808873 A
GB4808873 A
GB 4808873A
GB 4808873 A
GB4808873 A
GB 4808873A
GB 1438840 A
GB1438840 A
GB 1438840A
Authority
GB
United Kingdom
Prior art keywords
sensors
row
compensating
sensor
oct
Prior art date
1972-10-17
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
Application number
GB4808873A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
1972-10-17
Filing date
1973-10-16
Publication date
1976-06-09
1972-10-17
Priority claimed from JP10427172A
external-priority
patent/JPS5322814B2/ja
1972-10-17
Priority claimed from JP10427072A
external-priority
patent/JPS5315618B2/ja
1973-07-23
Priority claimed from JP8295273A
external-priority
patent/JPS5315770B2/ja
1973-10-16
Application filed by Matsushita Electric Industrial Co Ltd
filed
Critical
Matsushita Electric Industrial Co Ltd
1976-06-09
Publication of GB1438840A
publication
Critical
patent/GB1438840A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
G06K7/10841—Particularities of the light-sensitive elements
Abstract
1438840 Optical sensor MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 16 Oct 1973 [17 Oct 1972 (2) 23 July 1973] 48088/73 Heading G4M Optical static punched card reader has a matrix of photo-electric sensors corresponding to perforation locations in a card and a further row or column of sensors compensating for variations in operating conditions. The sensors 21 for the card perforations are connected in series with a diode 22 between an output (row) line connected to an output circuit 23 and an input (column) line connected to an input circuit 24. The compensating sensors are connected to respective diodes acting in the opposite sense to the diodes connected to the data sensors and are connected between a corresponding row line and a potential reference which is earth if a positive interrogations pulse is supplied (Fig. la, not shown) or a positive voltage if a negative pulse is supplied. The columns are interrogated in turn so that in each row a data sensor and compensating sensor are connected in series to form a voltage divider. The sensors have similar characteristics to compensate for variations in light intensity, background illumination aging &c.
GB4808873A
1972-10-17
1973-10-16
Optical static card reader
Expired
GB1438840A
(en)
Applications Claiming Priority (3)
Application Number
Priority Date
Filing Date
Title
JP10427172A
JPS5322814B2
(en)
1972-10-17
1972-10-17
JP10427072A
JPS5315618B2
(en)
1972-10-17
1972-10-17
JP8295273A
JPS5315770B2
(en)
1973-07-23
1973-07-23
Publications (1)
Publication Number
Publication Date
GB1438840A
true
GB1438840A
(en)
1976-06-09
Family
ID=27304058
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4808873A
Expired
GB1438840A
(en)
1972-10-17
1973-10-16
Optical static card reader
Country Status (4)
Country
Link
US
(1)
US3900716A
(en)
CA
(1)
CA996259A
(en)
FR
(1)
FR2203547A5
(en)
GB
(1)
GB1438840A
(en)
Families Citing this family (9)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4128757A
(en)
*
1977-05-05
1978-12-05
Garner Jr Dudley E
Customer initiated ordering system
US4369372A
(en)
*
1979-06-18
1983-01-18
Canon Kabushiki Kaisha
Photo electro transducer device
JPS575371A
(en)
*
1980-06-11
1982-01-12
Ricoh Co Ltd
Image sensor
US4495409A
(en)
*
1982-02-16
1985-01-22
Hitachi, Ltd.
Photosensor with diode array
DE3580385D1
(en)
*
1984-04-14
1990-12-13
British Aerospace
RADIATION DETECTOR ARRANGEMENT.
JPH0650424B2
(en)
*
1985-08-30
1994-06-29
ダイセル化学工業株式会社
Cryptographic system and hardware device used therefor
JP2745529B2
(en)
*
1988-04-08
1998-04-28
ソニー株式会社
Optical recording medium playback device
DE69328440T3
(en)
*
1992-06-19
2009-05-07
Honeywell, Inc., Minneapolis
INFRARED CAMERA WITH THERMOELECTRIC TEMPERATURE STABILIZATION
US6644550B1
(en)
*
2002-07-03
2003-11-11
Hon Hai Precision Ind. Co., Ltd.
Electrical card connector having blocking means
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3596063A
(en)
*
1969-01-13
1971-07-27
Ibm
Apparatus for reading marks on documents
US3628031A
(en)
*
1969-02-06
1971-12-14
Automata Corp
Closed loop control system for automatic sensitivity control of transducer
US3680080A
(en)
*
1970-06-29
1972-07-25
Optical Memory Systems
Optical logic function generator
US3781553A
(en)
*
1972-11-28
1973-12-25
B Podlaskin
Apparatus for analyzing an image
1973
1973-10-12
US
US406038A
patent/US3900716A/en
not_active
Expired – Lifetime
1973-10-16
GB
GB4808873A
patent/GB1438840A/en
not_active
Expired
1973-10-16
FR
FR7336855A
patent/FR2203547A5/fr
not_active
Expired
1973-10-16
CA
CA183,496A
patent/CA996259A/en
not_active
Expired
Also Published As
Publication number
Publication date
DE2352169A1
(en)
1974-04-18
FR2203547A5
(en)
1974-05-10
US3900716A
(en)
1975-08-19
DE2352169B2
(en)
1975-07-10
CA996259A
(en)
1976-08-31
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Legal Events
Date
Code
Title
Description
1976-10-20
PS
Patent sealed [section 19, patents act 1949]
1979-10-17
746
Register noted ‘licences of right’ (sect. 46/1977)
1993-11-17
PE20
Patent expired after termination of 20 years
Effective date:
19931015
