DE3070126D1 - Buffer memory control circuit - Google Patents

Buffer memory control circuit

Info

Publication number
DE3070126D1
DE3070126D1 DE8080106693T DE3070126T DE3070126D1 DE 3070126 D1 DE3070126 D1 DE 3070126D1 DE 8080106693 T DE8080106693 T DE 8080106693T DE 3070126 T DE3070126 T DE 3070126T DE 3070126 D1 DE3070126 D1 DE 3070126D1
Authority
DE
Germany
Prior art keywords
control circuit
buffer memory
memory control
buffer
circuit
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
Application number
DE8080106693T
Other languages
English (en)
Inventor
George Joseph Laurer
Charles Michael Pierce
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE3070126D1 publication Critical patent/DE3070126D1/de
Expired 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
    • G06K7/10821—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; 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
    • G06K7/01—Details
    • G06K7/016—Synchronisation of sensing process
    • G06K7/0166—Synchronisation of sensing process by means of clock-signals derived from the code marks, e.g. self-clocking code

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Complex Calculations (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
DE8080106693T 1979-11-29 1980-10-31 Buffer memory control circuit Expired DE3070126D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/098,461 US4344152A (en) 1979-11-29 1979-11-29 Buffer memory control circuit for label scanning system

Publications (1)

Publication Number Publication Date
DE3070126D1 true DE3070126D1 (en) 1985-03-21

Family

ID=22269373

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080106693T Expired DE3070126D1 (en) 1979-11-29 1980-10-31 Buffer memory control circuit

Country Status (5)

Country Link
US (1) US4344152A (de)
EP (1) EP0029923B1 (de)
JP (1) JPS5679371A (de)
CA (1) CA1148259A (de)
DE (1) DE3070126D1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4500880A (en) * 1981-07-06 1985-02-19 Motorola, Inc. Real time, computer-driven retail pricing display system
US4914623A (en) * 1986-09-18 1990-04-03 Hudson-Allen Limited Digital processing of sensor signals for reading binary storage media
JPS63135827U (de) * 1987-02-26 1988-09-06
JP3313362B2 (ja) * 1990-10-04 2002-08-12 日本電気株式会社 音声処理装置のメモリーアドレス発生器
WO1993003455A1 (en) * 1991-08-02 1993-02-18 Intermec Corporation Method and apparatus for scanning symbols
DE69232493T2 (de) * 1991-10-21 2003-01-09 Canon K.K., Tokio/Tokyo Verfahren und Gerät zur Zeichenerkennung
CA2230076A1 (en) * 1996-06-21 1997-12-24 Norand Corporation Code reader performing coded image decoding
US20040064455A1 (en) * 2002-09-26 2004-04-01 Eastman Kodak Company Software-floating palette for annotation of images that are viewable in a variety of organizational structures

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3798421A (en) * 1971-12-07 1974-03-19 Ncr Double field code reading system
US3868634A (en) * 1972-11-03 1975-02-25 Scanner Reading of contrasting data by means of continuously attempting to decode read signals
US3868636A (en) * 1973-06-18 1975-02-25 Isotec Inc Optical character reader having feature recognition capability
US3909787A (en) * 1974-07-01 1975-09-30 Ibm Candidate selection processor
JPS586982B2 (ja) * 1976-08-18 1983-02-07 株式会社デンソー バ−コ−ド読取方法および装置
US4125765A (en) * 1977-06-27 1978-11-14 International Business Machines Corporation Label find method and circuit
US4086477A (en) * 1977-06-27 1978-04-25 International Business Machines Corporation Decoding method and circuit
US4162035A (en) * 1977-09-23 1979-07-24 General Signal Corporation High resolution optical position code detector for information recorded on record carrier partially in humanly intelligible form
US4298954A (en) * 1979-04-30 1981-11-03 International Business Machines Corporation Alternating data buffers when one buffer is empty and another buffer is variably full of data

Also Published As

Publication number Publication date
CA1148259A (en) 1983-06-14
EP0029923B1 (de) 1985-02-06
JPS5679371A (en) 1981-06-29
JPS6113636B2 (de) 1986-04-14
US4344152A (en) 1982-08-10
EP0029923A1 (de) 1981-06-10

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee