PH19179A - Adaptive threshold optical reader - Google Patents

Adaptive threshold optical reader

Info

Publication number: PH19179A
Authority: PH; Philippines
Prior art keywords: optical reader; adaptive threshold; threshold optical; adaptive; reader
Prior art date: 1978-09-18

Application number

PH22962A

Inventor

Richard John Casaly

Original Assignee

Transaction Technology Inc

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.)

1978-09-18

Filing date

1979-08-27

Publication date

1986-01-23

1979-05-07 Priority claimed from US06/036,686 external-priority patent/US4230265A/en

1979-08-27 Application filed by Transaction Technology Inc filed Critical Transaction Technology Inc

1986-01-23 Publication of PH19179A publication Critical patent/PH19179A/en

Links

Classifications

- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06K7/10851—Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Electromagnetism (AREA)
Artificial Intelligence (AREA)
Toxicology (AREA)
General Health & Medical Sciences (AREA)
Health & Medical Sciences (AREA)
Computer Vision & Pattern Recognition (AREA)
General Physics & Mathematics (AREA)
Theoretical Computer Science (AREA)
Optical Recording Or Reproduction (AREA)
Electronic Switches (AREA)
Geophysics And Detection Of Objects (AREA)
Credit Cards Or The Like (AREA)

PH22962A 1978-09-18 1979-08-27 Adaptive threshold optical reader PH19179A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US94320178A	1978-09-18	1978-09-18
US06/036,686 US4230265A (en)	1979-05-07	1979-05-07	Adaptive threshold optical reader

Publications (1)

Publication Number	Publication Date
PH19179A true PH19179A (en)	1986-01-23

Family

ID=26713392

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
PH22962A PH19179A (en)	1978-09-18	1979-08-27	Adaptive threshold optical reader

Country Status (11)

Country	Link
AU (1)	AU528801B2 (en)
BR (1)	BR7905873A (en)
CA (1)	CA1129549A (en)
CH (1)	CH632098A5 (en)
DE (1)	DE2937315A1 (en)
FR (1)	FR2436448B1 (en)
GB (1)	GB2031630B (en)
HK (1)	HK6783A (en)
IT (1)	IT1120575B (en)
NL (1)	NL7906448A (en)
PH (1)	PH19179A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1988006339A1 (en) *	1987-02-12	1988-08-25	Dai Nippon Insatsu Kabushiki Kaisha	Method for recording and reproducing data for an optical card
FR2650416B1 (en) *	1989-07-28	1995-04-21	Adventure	INFORMATION TRANSMISSION SYSTEM, PORTABLE OBJECT AND READER FOR USE IN SUCH A SYSTEM
EP1026619A3 (en) *	1999-02-04	2001-09-19	Matsushita Electronics Corporation	Optical information reader and optical information reading system
JP2005072925A (en)	2003-08-25	2005-03-17	Nec Kansai Ltd	Photoelectric current and voltage converting circuit
JP2005072924A (en) *	2003-08-25	2005-03-17	Nec Kansai Ltd	Photoelectric current and voltage converting circuit
DE102004024038A1 (en) *	2004-05-10	2005-12-01	Gardena Manufacturing Gmbh	Programming device and reader for irrigation devices

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2100346A5 (en) *	1970-07-14	1972-03-17	Honeywell Inf Systems Italia
DE2153910C3 (en) *	1971-10-29	1974-10-17	Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt	Arrangement for evaluating the output signal of an optical measuring device
US3789215A (en) *	1972-09-08	1974-01-29	Ibm	Photosensitive document detector with automatic compensation
US3872434A (en) *	1973-12-05	1975-03-18	Recognition Equipment Inc	Dynamic sample-by-sample automatic gain control

1979
- 1979-08-22 CA CA334,234A patent/CA1129549A/en not_active Expired
- 1979-08-24 AU AU50270/79A patent/AU528801B2/en not_active Ceased
- 1979-08-27 PH PH22962A patent/PH19179A/en unknown
- 1979-08-28 NL NL7906448A patent/NL7906448A/en unknown
- 1979-08-30 GB GB7930069A patent/GB2031630B/en not_active Expired
- 1979-09-13 CH CH830279A patent/CH632098A5/en not_active IP Right Cessation
- 1979-09-14 BR BR7905873A patent/BR7905873A/en unknown
- 1979-09-14 IT IT50262/79A patent/IT1120575B/en active
- 1979-09-14 DE DE19792937315 patent/DE2937315A1/en not_active Ceased
- 1979-09-17 FR FR7923108A patent/FR2436448B1/en not_active Expired
1983
- 1983-02-24 HK HK67/83A patent/HK6783A/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
FR2436448B1 (en)	1986-10-17
HK6783A (en)	1983-02-24
IT7950262A0 (en)	1979-09-14
IT1120575B (en)	1986-03-26
DE2937315A1 (en)	1980-03-27
CA1129549A (en)	1982-08-10
AU5027079A (en)	1980-03-27
FR2436448A1 (en)	1980-04-11
BR7905873A (en)	1980-05-27
AU528801B2 (en)	1983-05-12
NL7906448A (en)	1980-03-20
CH632098A5 (en)	1982-09-15
GB2031630B (en)	1982-06-23
GB2031630A (en)	1980-04-23

Publication	Publication Date	Title
JPS54128221A (en)	1979-10-04	Optical reader
GB2021955B (en)	1982-10-20	Intracular lenses
GB2025651B (en)	1983-02-09	Optical recordingsystem
JPS56136057A (en)	1981-10-23	Adaptive memory
JPS57209571A (en)	1982-12-22	Optical reader
DE2965243D1 (en)	1983-05-26	Optical scanner
JPS5587330A (en)	1980-07-02	Optical memory
DE3269059D1 (en)	1986-03-27	Optical reader
JPS5599682A (en)	1980-07-29	Optical character reader
JPS54163665A (en)	1979-12-26	Threshold circuit
GB2035619B (en)	1982-10-20	Optical scanners
GB2013501B (en)	1982-05-19	Intracular lens
JPS5720872A (en)	1982-02-03	Optical reader
JPS53111228A (en)	1978-09-28	Optical reader
JPS5537700A (en)	1980-03-15	Threshold device
GB2031630B (en)	1982-06-23	Adaptive threshold optical reader
JPS5764868A (en)	1982-04-20	Scanning reader
JPS5422130A (en)	1979-02-19	Optical reader
JPS5496327A (en)	1979-07-30	Optical reader
JPS5539583A (en)	1980-03-19	Plane threshold
JPS5496326A (en)	1979-07-30	Optical reader
GB2021793B (en)	1982-09-08	Reader/printer
JPS54116220A (en)	1979-09-10	Small wideeangle lens
JPS5423324A (en)	1979-02-21	Optical reader
GB2027964B (en)	1983-09-07	Character reader