JPS639687B2 - - Google Patents

Info

Publication number
JPS639687B2
JPS639687B2 JP56074403A JP7440381A JPS639687B2 JP S639687 B2 JPS639687 B2 JP S639687B2 JP 56074403 A JP56074403 A JP 56074403A JP 7440381 A JP7440381 A JP 7440381A JP S639687 B2 JPS639687 B2 JP S639687B2
Authority
JP
Japan
Prior art keywords
analog
shift register
counter
output voltage
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
JP56074403A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57190424A (en
Inventor
Hiroshi Morito
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.)
NEC Corp
Original Assignee
Nippon Electric Co Ltd
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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP56074403A priority Critical patent/JPS57190424A/ja
Publication of JPS57190424A publication Critical patent/JPS57190424A/ja
Priority to US06/756,566 priority patent/US4573178A/en
Publication of JPS639687B2 publication Critical patent/JPS639687B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/353—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of field-effect transistors with internal or external positive feedback
    • H03K3/356—Bistable circuits
    • H03K3/3565—Bistables with hysteresis, e.g. Schmitt trigger
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
    • H03K23/40—Gating or clocking signals applied to all stages, i.e. synchronous counters
    • H03K23/50—Gating or clocking signals applied to all stages, i.e. synchronous counters using bi-stable regenerative trigger circuits
    • H03K23/54—Ring counters, i.e. feedback shift register counters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/286—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable
    • H03K3/2893—Bistables with hysteresis, e.g. Schmitt trigger
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/84—Generating pulses having a predetermined statistical distribution of a parameter, e.g. random pulse generators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manipulation Of Pulses (AREA)
  • Analogue/Digital Conversion (AREA)
JP56074403A 1981-05-18 1981-05-18 Counter Granted JPS57190424A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56074403A JPS57190424A (en) 1981-05-18 1981-05-18 Counter
US06/756,566 US4573178A (en) 1981-05-18 1985-07-18 Counter employing feedback shift register controlling hysteresis circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56074403A JPS57190424A (en) 1981-05-18 1981-05-18 Counter

Publications (2)

Publication Number Publication Date
JPS57190424A JPS57190424A (en) 1982-11-24
JPS639687B2 true JPS639687B2 (en]) 1988-03-01

Family

ID=13546183

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56074403A Granted JPS57190424A (en) 1981-05-18 1981-05-18 Counter

Country Status (2)

Country Link
US (1) US4573178A (en])
JP (1) JPS57190424A (en])

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2692843B2 (ja) * 1988-03-31 1997-12-17 株式会社東芝 除算器
US7280253B2 (en) * 2002-08-09 2007-10-09 Xerox Corporation System for identifying low-frequency halftone screens in image data

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846670A (en) * 1955-03-29 1958-08-05 Sperry Rand Corp Scale of n counter
US4348597A (en) * 1980-05-27 1982-09-07 Weber Harold J Latchup resistant pseudorandom binary sequence generator

Also Published As

Publication number Publication date
JPS57190424A (en) 1982-11-24
US4573178A (en) 1986-02-25

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