GB2344486B - Optical reader and adaptive exposure control - Google Patents

Optical reader and adaptive exposure control

Info

Publication number
GB2344486B
GB2344486B GB0001224A GB0001224A GB2344486B GB 2344486 B GB2344486 B GB 2344486B GB 0001224 A GB0001224 A GB 0001224A GB 0001224 A GB0001224 A GB 0001224A GB 2344486 B GB2344486 B GB 2344486B
Authority
GB
United Kingdom
Prior art keywords
exposure control
optical reader
adaptive exposure
adaptive
reader
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 - Fee Related
Application number
GB0001224A
Other versions
GB2344486A (en
GB0001224D0 (en
Inventor
Bryan L Olmstead
James E Colley
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.)
PSC Inc USA
Original Assignee
PSC Inc USA
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 PSC Inc USA filed Critical PSC Inc USA
Priority claimed from GB9707140A external-priority patent/GB2308267B/en
Publication of GB0001224D0 publication Critical patent/GB0001224D0/en
Publication of GB2344486A publication Critical patent/GB2344486A/en
Application granted granted Critical
Publication of GB2344486B publication Critical patent/GB2344486B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G06K7/10712—Fixed beam scanning
    • G06K7/10722—Photodetector array or CCD scanning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/40—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/70—SSIS architectures; Circuits associated therewith
    • H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
    • H04N25/77—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
GB0001224A 1995-08-25 1996-08-23 Optical reader and adaptive exposure control Expired - Fee Related GB2344486B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US325695P 1995-08-25 1995-08-25
GB9707140A GB2308267B (en) 1995-08-25 1996-08-23 Optical reader with imaging array having reduced pattern density

Publications (3)

Publication Number Publication Date
GB0001224D0 GB0001224D0 (en) 2000-03-08
GB2344486A GB2344486A (en) 2000-06-07
GB2344486B true GB2344486B (en) 2000-07-19

Family

ID=26311339

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0001224A Expired - Fee Related GB2344486B (en) 1995-08-25 1996-08-23 Optical reader and adaptive exposure control
GB0001225A Expired - Fee Related GB2343079B (en) 1995-08-25 1996-08-23 Optical reader with condensed CMOS circuitry

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0001225A Expired - Fee Related GB2343079B (en) 1995-08-25 1996-08-23 Optical reader with condensed CMOS circuitry

Country Status (1)

Country Link
GB (2) GB2344486B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7874485B2 (en) 2003-05-12 2011-01-25 Hand Held Products, Inc. Adaptive optical image reader

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060033826A1 (en) * 2004-08-12 2006-02-16 Xinqiao Liu Imaging array having variable pixel size
US7852519B2 (en) 2007-02-05 2010-12-14 Hand Held Products, Inc. Dual-tasking decoder for improved symbol reading
US8628015B2 (en) 2008-10-31 2014-01-14 Hand Held Products, Inc. Indicia reading terminal including frame quality evaluation processing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0163547A2 (en) * 1984-05-31 1985-12-04 Fujitsu Limited Image sensor
GB2255465A (en) * 1991-04-30 1992-11-04 Sony Broadcast & Communication Image capture apparatus with increased dynamic range.
GB2262678A (en) * 1991-12-18 1993-06-23 Samsung Electronics Co Ltd A circuit for controlling the speed of an electronic shutter for a video camera

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991004633A1 (en) * 1989-09-23 1991-04-04 Vlsi Vision Limited I.c. sensor
US5262871A (en) * 1989-11-13 1993-11-16 Rutgers, The State University Multiple resolution image sensor
US5319182A (en) * 1992-03-04 1994-06-07 Welch Allyn, Inc. Integrated solid state light emitting and detecting array and apparatus employing said array
GB2269505B (en) * 1992-08-07 1996-07-24 Gec Ferranti Defence Syst Integrated-circuit image processing device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0163547A2 (en) * 1984-05-31 1985-12-04 Fujitsu Limited Image sensor
GB2255465A (en) * 1991-04-30 1992-11-04 Sony Broadcast & Communication Image capture apparatus with increased dynamic range.
GB2262678A (en) * 1991-12-18 1993-06-23 Samsung Electronics Co Ltd A circuit for controlling the speed of an electronic shutter for a video camera

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7874485B2 (en) 2003-05-12 2011-01-25 Hand Held Products, Inc. Adaptive optical image reader

Also Published As

Publication number Publication date
GB2344486A (en) 2000-06-07
GB0001225D0 (en) 2000-03-08
GB0001224D0 (en) 2000-03-08
GB2343079A (en) 2000-04-26
GB2343079B (en) 2000-06-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20150823