IT7928135A0 - Struttura per separare un segnale ottico dalla luce ambiente. - Google Patents

Struttura per separare un segnale ottico dalla luce ambiente.

Info

Publication number: IT7928135A0
Authority: IT; Italy
Prior art keywords: separate; optical signal; ambient light; ambient; light
Prior art date: 1978-12-20

Application number

IT7928135A

Other languages

English (en)

Other versions

IT1165437B (it

Inventor

Bapst Urs Heinrich

Gfeller Fritz

Vettiger Peter

Original Assignee

Ibm

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.)

1978-12-20

Filing date

1979-12-18

Publication date

1979-12-18

1979-12-18 Application filed by Ibm filed Critical Ibm

1979-12-18 Publication of IT7928135A0 publication Critical patent/IT7928135A0/it

1987-04-22 Application granted granted Critical

1987-04-22 Publication of IT1165437B publication Critical patent/IT1165437B/it

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
- G06K7/10544—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
- G06K7/10554—Moving beam scanning
- G06K7/10594—Beam path
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems

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)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Optical Communication System (AREA)
Photometry And Measurement Of Optical Pulse Characteristics (AREA)

IT28135/79A 1978-12-20 1979-12-18 Struttura per separare un segnale ottico dalla luce ambiente IT1165437B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH1292378A CH638067A5 (de)	1978-12-20	1978-12-20	Anordnung zur trennung eines optischen signals von umgebungslicht.

Publications (2)

Publication Number	Publication Date
IT7928135A0 true IT7928135A0 (it)	1979-12-18
IT1165437B IT1165437B (it)	1987-04-22

Family

ID=4387646

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT28135/79A IT1165437B (it)	1978-12-20	1979-12-18	Struttura per separare un segnale ottico dalla luce ambiente

Country Status (7)

Country	Link
US (1)	US4303855A (it)
EP (1)	EP0012818B1 (it)
JP (1)	JPS6010613B2 (it)
CA (1)	CA1124798A (it)
CH (1)	CH638067A5 (it)
DE (1)	DE2967024D1 (it)
IT (1)	IT1165437B (it)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3242219C1 (de) *	1982-11-15	1984-02-16	Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch	Optisches Markenerkennungsgeraet
JPS59215138A (ja) *	1983-05-23	1984-12-05	Nec Corp	光受信器
HU193436B (en) *	1984-07-23	1987-10-28	Tavkoezlesi Kutato Intezet	Selective optical sensing apparatus, mainly for optical telecommunication equipments and optical locators
US4864647A (en) *	1987-12-18	1989-09-05	Modcom Corporation	Wireless infrared remote control extender
US5151580A (en) *	1990-08-03	1992-09-29	Symbol Technologies, Inc.	Light emitting diode scanner
SE9100916L (sv) *	1991-03-27	1992-09-28	Nobeltech Electronics Ab	Laservarnare
DE4117011A1 (de) *	1991-05-24	1992-11-26	Gao Ges Automation Org	Optischer sensor
US5473461A (en) *	1994-08-26	1995-12-05	Interactive Light, Inc.	Wide dynamic range optical receiver
US5910653A (en) *	1997-04-09	1999-06-08	Telxon Corporation	Shelf tag with ambient light detector
DE19724903A1 (de) *	1997-06-12	1998-12-17	Zeiss Carl Fa	Lichtintensitätsmeßanordnung
US6184521B1 (en)	1998-01-06	2001-02-06	Masimo Corporation	Photodiode detector with integrated noise shielding
CN100446723C (zh) *	2001-06-19	2008-12-31	宾夕法尼亚大学理事会	用于侵入性导管定位的光导系统
US7002131B1 (en)	2003-01-24	2006-02-21	Jds Uniphase Corporation	Methods, systems and apparatus for measuring average received optical power
US7215883B1 (en)	2003-01-24	2007-05-08	Jds Uniphase Corporation	Methods for determining the performance, status, and advanced failure of optical communication channels
JP4826284B2 (ja) *	2006-02-28	2011-11-30	ミツミ電機株式会社	光検出装置
US20070263099A1 (en) *	2006-05-09	2007-11-15	Pixim Inc.	Ambient Light Rejection In Digital Video Images
US8006905B2 (en) *	2008-04-18	2011-08-30	Intermec Ip Corp.	Method of reducing noise in an optically read image using an optical collection device
DE102009056461A1 (de) *	2009-12-01	2011-06-09	Vishay Semiconductor Gmbh	Infrarot-Empfängerschaltung
US9016579B2 (en)	2013-05-23	2015-04-28	Symbol Technologies, Inc.	Apparatus for and method of electro-optically reading a target in the presence of ambient light
CN205091752U (zh) *	2015-09-18	2016-03-16	手持产品公司	一种消除环境光闪烁噪声的条形码扫描设备及噪声消除电路

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1797327C2 (de) *	1964-09-25	1974-07-25	Kollmorgen Corp., Garden City, N.Y. (V.St.A.)	Gerät zur Messung des optischen Reflexionsvermögens bzw. der Durchlässigkeit. Ausscheidung aus: 1622484
US3456997A (en) *	1967-07-20	1969-07-22	Sylvania Electric Prod	Apparatus for eliminating image distortions
US3821550A (en) *	1969-07-18	1974-06-28	Deere & Co	Plant thinner having radiant energy plant detecting means
FR2127096A5 (it)	1971-02-23	1972-10-13	Thomson Csf
NO141283L (it) *	1973-07-03	1900-01-01
US4057352A (en) *	1976-05-13	1977-11-08	Genevieve I. Hanscom	Color grading apparatus utilizing infrared light source
US4127773A (en) *	1977-03-31	1978-11-28	Applied Photophysics Limited	Characterizing and identifying materials
US4228349A (en) *	1978-08-28	1980-10-14	Rca Corporation	III-V Direct-bandgap semiconductor optical filter

1978
- 1978-12-20 CH CH1292378A patent/CH638067A5/de not_active IP Right Cessation
1979
- 1979-11-06 CA CA339,220A patent/CA1124798A/en not_active Expired
- 1979-11-06 EP EP79104342A patent/EP0012818B1/de not_active Expired
- 1979-11-06 DE DE7979104342T patent/DE2967024D1/de not_active Expired
- 1979-11-16 JP JP54147839A patent/JPS6010613B2/ja not_active Expired
- 1979-12-06 US US06/101,330 patent/US4303855A/en not_active Expired - Lifetime
- 1979-12-18 IT IT28135/79A patent/IT1165437B/it active

Also Published As

Publication number	Publication date
DE2967024D1 (en)	1984-07-05
CA1124798A (en)	1982-06-01
JPS5587127A (en)	1980-07-01
IT1165437B (it)	1987-04-22
EP0012818B1 (de)	1984-05-30
JPS6010613B2 (ja)	1985-03-19
US4303855A (en)	1981-12-01
EP0012818A1 (de)	1980-07-09
CH638067A5 (de)	1983-08-31

Publication	Publication Date	Title
IT7928135A0 (it)	1979-12-18	Struttura per separare un segnale ottico dalla luce ambiente.
ATA676279A (de)	1987-12-15	Lichtleiter - steckverbindung
IT7925544A0 (it)	1979-09-07	Dispositivo ottico di illuminazione.
IT1160893B (it)	1987-03-11	Fanale per autoveicoli
IT1151464B (it)	1986-12-17	Modulo costruttivo leggero
NL7901042A (nl)	1979-08-17	Optisch meetstelsel.
NL7903361A (nl)	1979-10-30	Lichtemitterende halfgeleidereenheid.
FI790716A7 (fi)	1979-09-04	Optisk vaogledare
DK156379A (da)	1979-10-19	Lysbeskyttelsesmiddel
IT7927653A0 (it)	1979-11-28	Propagatore ottico.
IT1156906B (it)	1987-02-04	Fanale per autoveicoli
SE7810729L (sv)	1979-04-16	Flerskalig ljuskupol
FI791281A7 (fi)	1979-10-25	Ljussignalanordning
IT1120776B (it)	1986-03-26	Fanale per veicolo
DK472779A (da)	1980-05-10	Stabiliseret optisk system
FI794049A7 (fi)	1981-01-01	Ulkonevan valokilpikotelon kehysrakenne.
YU91777A (en)	1982-05-31	Signal light
NL7808120A (nl)	1979-04-03	Lichtsignaal.
AT370541B (de)	1983-04-11	Lichtsignaleinrichtung
NO791292L (no)	1979-10-25	Lyssignalanordning.
NO151759C (no)	1985-05-29	Trafikksignallykt.
ATA490578A (de)	1980-12-15	Lichtsignal
JPS5553800A (en)	1980-04-19	Multiicolor signal light
ATA784078A (de)	1983-07-15	Lichtsignaleinrichtung
PL203024A1 (pl)	1979-07-16	Oswietlacz optyczny