CH622896A5 - - Google Patents

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Publication number
CH622896A5
CH622896A5 CH299578A CH299578A CH622896A5 CH 622896 A5 CH622896 A5 CH 622896A5 CH 299578 A CH299578 A CH 299578A CH 299578 A CH299578 A CH 299578A CH 622896 A5 CH622896 A5 CH 622896A5
Authority
CH
Switzerland
Prior art keywords
light sensor
reading
document
reading device
light
Prior art date
Application number
CH299578A
Other languages
German (de)
English (en)
Inventor
David Leslie Greenaway
Original Assignee
Landis & Gyr Ag
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.)
Filing date
Publication date
Application filed by Landis & Gyr Ag filed Critical Landis & Gyr Ag
Priority to CH299578A priority Critical patent/CH622896A5/de
Priority to DE2814890A priority patent/DE2814890C2/de
Priority to FR7835407A priority patent/FR2420794B1/fr
Priority to US06/008,427 priority patent/US4250393A/en
Priority to JP54026844A priority patent/JPS6046470B2/ja
Priority to GB7908981A priority patent/GB2016775B/en
Priority to IT21053/79A priority patent/IT1111936B/it
Priority to ES478763A priority patent/ES478763A1/es
Priority to BE194107A priority patent/BE874955A/xx
Priority to SE7902465A priority patent/SE436944B/sv
Publication of CH622896A5 publication Critical patent/CH622896A5/de

Links

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
    • G06K7/10831—Arrangement of optical elements, e.g. lenses, mirrors, prisms
    • 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
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/08—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
    • G06K19/10—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards
    • G06K19/16—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards the marking being a hologram or diffraction grating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S283/00—Printed matter
    • Y10S283/904—Credit card
CH299578A 1978-03-20 1978-03-20 CH622896A5 (ja)

Priority Applications (10)

Application Number Priority Date Filing Date Title
CH299578A CH622896A5 (ja) 1978-03-20 1978-03-20
DE2814890A DE2814890C2 (de) 1978-03-20 1978-04-06 Optisches Lesegerät
FR7835407A FR2420794B1 (fr) 1978-03-20 1978-12-15 Appareil de lecture optique
US06/008,427 US4250393A (en) 1978-03-20 1979-01-31 Photoelectric apparatus for detecting altered markings
JP54026844A JPS6046470B2 (ja) 1978-03-20 1979-03-09 光学読取り装置
GB7908981A GB2016775B (en) 1978-03-20 1979-03-14 Optical reading apparatus for documents
IT21053/79A IT1111936B (it) 1978-03-20 1979-03-16 Lettore ottico
ES478763A ES478763A1 (es) 1978-03-20 1979-03-17 Un aparato lector optico para documentos que contienen una informacion en forma de marcaciones opticas.
BE194107A BE874955A (fr) 1978-03-20 1979-03-19 Appareil de lecture optique
SE7902465A SE436944B (sv) 1978-03-20 1979-03-19 Optisk lesanordning for dokument vilka innehaller information i form av optiska markeringar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH299578A CH622896A5 (ja) 1978-03-20 1978-03-20

Publications (1)

Publication Number Publication Date
CH622896A5 true CH622896A5 (ja) 1981-04-30

Family

ID=4246279

Family Applications (1)

Application Number Title Priority Date Filing Date
CH299578A CH622896A5 (ja) 1978-03-20 1978-03-20

Country Status (10)

Country Link
US (1) US4250393A (ja)
JP (1) JPS6046470B2 (ja)
BE (1) BE874955A (ja)
CH (1) CH622896A5 (ja)
DE (1) DE2814890C2 (ja)
ES (1) ES478763A1 (ja)
FR (1) FR2420794B1 (ja)
GB (1) GB2016775B (ja)
IT (1) IT1111936B (ja)
SE (1) SE436944B (ja)

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WO1993012506A1 (en) * 1991-12-19 1993-06-24 Control Module Inc. Secure optomagnetic identification
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US6219015B1 (en) * 1992-04-28 2001-04-17 The Board Of Directors Of The Leland Stanford, Junior University Method and apparatus for using an array of grating light valves to produce multicolor optical images
US5629801A (en) * 1995-06-07 1997-05-13 Silicon Light Machines Diffraction grating light doubling collection system
US5661592A (en) * 1995-06-07 1997-08-26 Silicon Light Machines Method of making and an apparatus for a flat diffraction grating light valve
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US5841579A (en) * 1995-06-07 1998-11-24 Silicon Light Machines Flat diffraction grating light valve
US6064404A (en) * 1996-11-05 2000-05-16 Silicon Light Machines Bandwidth and frame buffer size reduction in a digital pulse-width-modulated display system
US5982553A (en) * 1997-03-20 1999-11-09 Silicon Light Machines Display device incorporating one-dimensional grating light-valve array
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US6215579B1 (en) 1998-06-24 2001-04-10 Silicon Light Machines Method and apparatus for modulating an incident light beam for forming a two-dimensional image
US6303986B1 (en) * 1998-07-29 2001-10-16 Silicon Light Machines Method of and apparatus for sealing an hermetic lid to a semiconductor die
US6872984B1 (en) 1998-07-29 2005-03-29 Silicon Light Machines Corporation Method of sealing a hermetic lid to a semiconductor die at an angle
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US6707591B2 (en) * 2001-04-10 2004-03-16 Silicon Light Machines Angled illumination for a single order light modulator based projection system
US20030208753A1 (en) * 2001-04-10 2003-11-06 Silicon Light Machines Method, system, and display apparatus for encrypted cinema
US6865346B1 (en) 2001-06-05 2005-03-08 Silicon Light Machines Corporation Fiber optic transceiver
US6747781B2 (en) * 2001-06-25 2004-06-08 Silicon Light Machines, Inc. Method, apparatus, and diffuser for reducing laser speckle
US6782205B2 (en) * 2001-06-25 2004-08-24 Silicon Light Machines Method and apparatus for dynamic equalization in wavelength division multiplexing
US6646778B2 (en) * 2001-08-01 2003-11-11 Silicon Light Machines Grating light valve with encapsulated dampening gas
US6639722B2 (en) * 2001-08-15 2003-10-28 Silicon Light Machines Stress tuned blazed grating light valve
US6829092B2 (en) * 2001-08-15 2004-12-07 Silicon Light Machines, Inc. Blazed grating light valve
US6785001B2 (en) * 2001-08-21 2004-08-31 Silicon Light Machines, Inc. Method and apparatus for measuring wavelength jitter of light signal
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US6692129B2 (en) * 2001-11-30 2004-02-17 Silicon Light Machines Display apparatus including RGB color combiner and 1D light valve relay including schlieren filter
US6800238B1 (en) 2002-01-15 2004-10-05 Silicon Light Machines, Inc. Method for domain patterning in low coercive field ferroelectrics
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US6728023B1 (en) 2002-05-28 2004-04-27 Silicon Light Machines Optical device arrays with optimized image resolution
US6839479B2 (en) * 2002-05-29 2005-01-04 Silicon Light Machines Corporation Optical switch
US7054515B1 (en) 2002-05-30 2006-05-30 Silicon Light Machines Corporation Diffractive light modulator-based dynamic equalizer with integrated spectral monitor
US6822797B1 (en) 2002-05-31 2004-11-23 Silicon Light Machines, Inc. Light modulator structure for producing high-contrast operation using zero-order light
US6829258B1 (en) 2002-06-26 2004-12-07 Silicon Light Machines, Inc. Rapidly tunable external cavity laser
US6714337B1 (en) 2002-06-28 2004-03-30 Silicon Light Machines Method and device for modulating a light beam and having an improved gamma response
US6813059B2 (en) * 2002-06-28 2004-11-02 Silicon Light Machines, Inc. Reduced formation of asperities in contact micro-structures
US6908201B2 (en) * 2002-06-28 2005-06-21 Silicon Light Machines Corporation Micro-support structures
US6801354B1 (en) 2002-08-20 2004-10-05 Silicon Light Machines, Inc. 2-D diffraction grating for substantially eliminating polarization dependent losses
US7057795B2 (en) * 2002-08-20 2006-06-06 Silicon Light Machines Corporation Micro-structures with individually addressable ribbon pairs
US6712480B1 (en) 2002-09-27 2004-03-30 Silicon Light Machines Controlled curvature of stressed micro-structures
US6928207B1 (en) 2002-12-12 2005-08-09 Silicon Light Machines Corporation Apparatus for selectively blocking WDM channels
US7057819B1 (en) 2002-12-17 2006-06-06 Silicon Light Machines Corporation High contrast tilting ribbon blazed grating
US6987600B1 (en) 2002-12-17 2006-01-17 Silicon Light Machines Corporation Arbitrary phase profile for better equalization in dynamic gain equalizer
US6934070B1 (en) 2002-12-18 2005-08-23 Silicon Light Machines Corporation Chirped optical MEM device
US6927891B1 (en) 2002-12-23 2005-08-09 Silicon Light Machines Corporation Tilt-able grating plane for improved crosstalk in 1×N blaze switches
US7068372B1 (en) 2003-01-28 2006-06-27 Silicon Light Machines Corporation MEMS interferometer-based reconfigurable optical add-and-drop multiplexor
US7286764B1 (en) 2003-02-03 2007-10-23 Silicon Light Machines Corporation Reconfigurable modulator-based optical add-and-drop multiplexer
US6947613B1 (en) 2003-02-11 2005-09-20 Silicon Light Machines Corporation Wavelength selective switch and equalizer
US6922272B1 (en) 2003-02-14 2005-07-26 Silicon Light Machines Corporation Method and apparatus for leveling thermal stress variations in multi-layer MEMS devices
US6922273B1 (en) 2003-02-28 2005-07-26 Silicon Light Machines Corporation PDL mitigation structure for diffractive MEMS and gratings
US6806997B1 (en) 2003-02-28 2004-10-19 Silicon Light Machines, Inc. Patterned diffractive light modulator ribbon for PDL reduction
US7027202B1 (en) 2003-02-28 2006-04-11 Silicon Light Machines Corp Silicon substrate as a light modulator sacrificial layer
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Also Published As

Publication number Publication date
FR2420794B1 (fr) 1985-11-29
JPS6046470B2 (ja) 1985-10-16
SE436944B (sv) 1985-01-28
GB2016775B (en) 1982-03-17
ES478763A1 (es) 1979-05-16
FR2420794A1 (fr) 1979-10-19
JPS54128221A (en) 1979-10-04
GB2016775A (en) 1979-09-26
US4250393A (en) 1981-02-10
SE7902465L (sv) 1979-09-21
DE2814890C2 (de) 1979-08-09
IT7921053A0 (it) 1979-03-16
BE874955A (fr) 1979-07-16
IT1111936B (it) 1986-01-13
DE2814890B1 (de) 1978-12-07

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PL Patent ceased