JPS56169939A - Counting circuit - Google Patents

Counting circuit

Info

Publication number
JPS56169939A
JPS56169939A JP7511480A JP7511480A JPS56169939A JP S56169939 A JPS56169939 A JP S56169939A JP 7511480 A JP7511480 A JP 7511480A JP 7511480 A JP7511480 A JP 7511480A JP S56169939 A JPS56169939 A JP S56169939A
Authority
JP
Japan
Prior art keywords
ffs
output
stage
flip
constitution
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
JP7511480A
Other languages
Japanese (ja)
Other versions
JPH0221177B2 (en
Inventor
Toyota Noguchi
Kenjiro Nakayama
Hironori Kato
Mamoru Kaneko
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7511480A priority Critical patent/JPS56169939A/en
Publication of JPS56169939A publication Critical patent/JPS56169939A/en
Publication of JPH0221177B2 publication Critical patent/JPH0221177B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers
    • H03K21/02—Input circuits
    • H03K21/023—Input circuits comprising pulse shaping or differentiating circuits

Landscapes

  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To prevent the production of spikes due to the difference between gate delay times, by passing through the Q output of a flip-flop immediately before and the Q' output of all the flip-flops before that. CONSTITUTION:At least >=2, e.g., flip-flops FFs 11-14 are used, and the operation of the FFs depends upon the output of the FFs located before for an objective FF, and the constitution is made that the change in the 1st stage FF and other FFs after the stage are operated in opposite phase. and the Q output of the FF13 and the Q' output of all the FFs before the stage are given to the same gate circuit 16, to decide to obtain toggle type FFs or that the content of the FFs are unchanged. Thus, when one pulse is inputted, the internal state is changed only by one in comparison with the stage before, allowing to avoid the production of spikes.
JP7511480A 1980-06-03 1980-06-03 Counting circuit Granted JPS56169939A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7511480A JPS56169939A (en) 1980-06-03 1980-06-03 Counting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7511480A JPS56169939A (en) 1980-06-03 1980-06-03 Counting circuit

Publications (2)

Publication Number Publication Date
JPS56169939A true JPS56169939A (en) 1981-12-26
JPH0221177B2 JPH0221177B2 (en) 1990-05-14

Family

ID=13566823

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7511480A Granted JPS56169939A (en) 1980-06-03 1980-06-03 Counting circuit

Country Status (1)

Country Link
JP (1) JPS56169939A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63180218A (en) * 1987-01-21 1988-07-25 Nec Corp Counting circuit
JP2011004092A (en) * 2009-06-17 2011-01-06 Sharp Corp A/d conversion apparatus, solid-state image capturing apparatus and electronic information device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63180218A (en) * 1987-01-21 1988-07-25 Nec Corp Counting circuit
JP2011004092A (en) * 2009-06-17 2011-01-06 Sharp Corp A/d conversion apparatus, solid-state image capturing apparatus and electronic information device

Also Published As

Publication number Publication date
JPH0221177B2 (en) 1990-05-14

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