JPS5452423A - Clock signal generator - Google Patents

Clock signal generator

Info

Publication number
JPS5452423A
JPS5452423A JP11916077A JP11916077A JPS5452423A JP S5452423 A JPS5452423 A JP S5452423A JP 11916077 A JP11916077 A JP 11916077A JP 11916077 A JP11916077 A JP 11916077A JP S5452423 A JPS5452423 A JP S5452423A
Authority
JP
Japan
Prior art keywords
card
data
converted
clock signals
disc
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.)
Granted
Application number
JP11916077A
Other languages
English (en)
Other versions
JPS5926071B2 (ja
Inventor
Tsutomu Yamada
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.)
Seiko Epson Corp
Suwa Seikosha KK
Epson Corp
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
Epson 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 Seiko Epson Corp, Suwa Seikosha KK, Epson Corp filed Critical Seiko Epson Corp
Priority to JP52119160A priority Critical patent/JPS5926071B2/ja
Priority to US05/948,619 priority patent/US4196349A/en
Publication of JPS5452423A publication Critical patent/JPS5452423A/ja
Publication of JPS5926071B2 publication Critical patent/JPS5926071B2/ja
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/01Details
    • G06K7/016Synchronisation of sensing process

Landscapes

  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
JP52119160A 1977-10-04 1977-10-04 クロツク信号発生装置 Expired JPS5926071B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP52119160A JPS5926071B2 (ja) 1977-10-04 1977-10-04 クロツク信号発生装置
US05/948,619 US4196349A (en) 1977-10-04 1978-10-04 Clock signal producing device for a card reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52119160A JPS5926071B2 (ja) 1977-10-04 1977-10-04 クロツク信号発生装置

Publications (2)

Publication Number Publication Date
JPS5452423A true JPS5452423A (en) 1979-04-25
JPS5926071B2 JPS5926071B2 (ja) 1984-06-23

Family

ID=14754394

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52119160A Expired JPS5926071B2 (ja) 1977-10-04 1977-10-04 クロツク信号発生装置

Country Status (2)

Country Link
US (1) US4196349A (ja)
JP (1) JPS5926071B2 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4322614A (en) * 1980-01-04 1982-03-30 Consolidated Foods Corporation Ticket reader
US4628200A (en) * 1984-08-20 1986-12-09 Westinghouse Electric Corp. Pulse wheel system with shaft mounting

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3796861A (en) * 1970-04-22 1974-03-12 Ricoh Kk Information card read-out device
US3735098A (en) * 1971-08-09 1973-05-22 Ricoh Kk Recording medium feed system for reader of data processing equipment
US3914789A (en) * 1973-11-19 1975-10-21 Ibm Manually operated magnetic card encoder

Also Published As

Publication number Publication date
US4196349A (en) 1980-04-01
JPS5926071B2 (ja) 1984-06-23

Similar Documents

Publication Publication Date Title
JPS5452423A (en) Clock signal generator
JPS53144707A (en) Signal detecting system by variable thresholds
JPS51135430A (en) Signal processing unit
JPS52129236A (en) Reading control method
JPS53121644A (en) Detecting method of focal position using holograph
JPS55110377A (en) Optical character reader
JPS5379327A (en) Character recognition unit
JPS5520575A (en) Information input pen
JPS53129005A (en) Optical information reader
JPS5216915A (en) Facsimile device
JPS53127235A (en) Skew detection system
JPS5210634A (en) Optical letter reading method of movable type
JPS5282399A (en) Mark reading apparatus
JPS51124347A (en) Information processing and recording unit for magnetic cards
JPS529322A (en) Mark information reading system
JPS5265631A (en) Optical data read device
JPS5279917A (en) Servo signal writing start timing generation system
JPS5299716A (en) Bar code symbol reading device
JPS5437471A (en) Code reading device for wafer
JPS5329644A (en) Detecting circuit for data signal
JPS5611307A (en) Spin type solar sensor
JPS524299A (en) Automatic ticket examining and collecting method and magnetic card for automatic ticket examination and collection
JPS5344A (en) Information position detecting method
JPS51142914A (en) Sampling pulse generator for card reader
JPS52134758A (en) Angle detector