FR2440582A1 - Automatic search facility for microfilm reader - uses microprocessor to execute instructions from keyboard to control projector step motors operations - Google Patents

Automatic search facility for microfilm reader - uses microprocessor to execute instructions from keyboard to control projector step motors operations

Info

Publication number
FR2440582A1
FR2440582A1 FR7831138A FR7831138A FR2440582A1 FR 2440582 A1 FR2440582 A1 FR 2440582A1 FR 7831138 A FR7831138 A FR 7831138A FR 7831138 A FR7831138 A FR 7831138A FR 2440582 A1 FR2440582 A1 FR 2440582A1
Authority
FR
France
Prior art keywords
keyboard
step motors
microfilm reader
execute instructions
automatic search
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.)
Withdrawn
Application number
FR7831138A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7831138A priority Critical patent/FR2440582A1/en
Publication of FR2440582A1 publication Critical patent/FR2440582A1/en
Withdrawn legal-status Critical Current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
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G06K17/0016—Selecting or retrieving of images by means of their associated code-marks, e.g. coded microfilm or microfiche

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

The microfilm reader projector contains a platform which is moved in two perpendicular directions and controlled by two step motors controlled from a keyboard console. The keyboard contains several buttons whose functions are identified by a circuit followed by an interface circuit prior to entry to a microprocessor. The microprocessor executes instructions corresponding to the buttons operated to direct signals to control circuits (50X, 50Y) for the motors to allow them to be driven in either direction as required. An alpha numeric display allows display of the function being executed.
FR7831138A 1978-11-03 1978-11-03 Automatic search facility for microfilm reader - uses microprocessor to execute instructions from keyboard to control projector step motors operations Withdrawn FR2440582A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7831138A FR2440582A1 (en) 1978-11-03 1978-11-03 Automatic search facility for microfilm reader - uses microprocessor to execute instructions from keyboard to control projector step motors operations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7831138A FR2440582A1 (en) 1978-11-03 1978-11-03 Automatic search facility for microfilm reader - uses microprocessor to execute instructions from keyboard to control projector step motors operations

Publications (1)

Publication Number Publication Date
FR2440582A1 true FR2440582A1 (en) 1980-05-30

Family

ID=9214436

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7831138A Withdrawn FR2440582A1 (en) 1978-11-03 1978-11-03 Automatic search facility for microfilm reader - uses microprocessor to execute instructions from keyboard to control projector step motors operations

Country Status (1)

Country Link
FR (1) FR2440582A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503901A1 (en) * 1981-04-10 1982-10-15 Piaton Alain TELEMATIC NETWORK FOR DISTANCE INFORMATION CONSULTATION

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503901A1 (en) * 1981-04-10 1982-10-15 Piaton Alain TELEMATIC NETWORK FOR DISTANCE INFORMATION CONSULTATION
EP0063080A1 (en) * 1981-04-10 1982-10-20 Alain Nicolas Piaton Use of a network for the remote consultation of information

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Legal Events

Date Code Title Description
ST Notification of lapse