JPS5762633A - Counting device - Google Patents

Counting device

Info

Publication number
JPS5762633A
JPS5762633A JP13832880A JP13832880A JPS5762633A JP S5762633 A JPS5762633 A JP S5762633A JP 13832880 A JP13832880 A JP 13832880A JP 13832880 A JP13832880 A JP 13832880A JP S5762633 A JPS5762633 A JP S5762633A
Authority
JP
Japan
Prior art keywords
count
notation
output
becomes
count value
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.)
Pending
Application number
JP13832880A
Other languages
Japanese (ja)
Inventor
Hiroyuki Sugiyama
Ryozo Abe
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.)
Victor Company of Japan Ltd
Nippon Victor KK
Original Assignee
Victor Company of Japan Ltd
Nippon Victor KK
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 Victor Company of Japan Ltd, Nippon Victor KK filed Critical Victor Company of Japan Ltd
Priority to JP13832880A priority Critical patent/JPS5762633A/en
Publication of JPS5762633A publication Critical patent/JPS5762633A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
    • H03K23/64—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
    • H03K23/66—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses
    • H03K23/667—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses by switching the base during a counting cycle

Landscapes

  • Debugging And Monitoring (AREA)

Abstract

PURPOSE:To form a counting device which realizes the count operation of a desired M notation with a simple constitution, by repeating count operations of an N notation and an N+1 notation periodically. CONSTITUTION:In case that the count operation of am M notation, for example, 12.5 notation, BCD 1011 (decimal 11) is stored in a memory 4; and first, the output of an FF7 is 0, and the output of the memory is set to a down counter 3 through exclusive OR circuits 61-63 as it is. When 11 count pulses from an input terminal 2 come, the count value becomes 0000; and the count value of the counter 3 becomes 1111 by the 12th pulse input, and a borrow signal B is outputted, and the output of the FF7 is 1, and outputs of circuit 61-63 are 001, and 1100 is set to the down counter 3. Therefore, the count value of the counter 3 becomes 0000 when the next 12 count pulses come, and the count value becomes 1111 by the 13th pulse, and the borrow signal output is issued, and the FF is set to 0. A count signal of 12.5 notation is taken out as the whole to a borrow signal output terminal.
JP13832880A 1980-10-03 1980-10-03 Counting device Pending JPS5762633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13832880A JPS5762633A (en) 1980-10-03 1980-10-03 Counting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13832880A JPS5762633A (en) 1980-10-03 1980-10-03 Counting device

Publications (1)

Publication Number Publication Date
JPS5762633A true JPS5762633A (en) 1982-04-15

Family

ID=15219328

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13832880A Pending JPS5762633A (en) 1980-10-03 1980-10-03 Counting device

Country Status (1)

Country Link
JP (1) JPS5762633A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01238220A (en) * 1988-03-18 1989-09-22 Fujitsu Ltd Variable frequency dividing circuit
JPH06197855A (en) * 1992-11-11 1994-07-19 Shimomura Komuten:Kk Cleaning unit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53112651A (en) * 1977-03-12 1978-10-02 Nec Corp Variable frequency demultiplier
JPS5460547A (en) * 1977-10-24 1979-05-16 Hitachi Ltd Programable divider

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53112651A (en) * 1977-03-12 1978-10-02 Nec Corp Variable frequency demultiplier
JPS5460547A (en) * 1977-10-24 1979-05-16 Hitachi Ltd Programable divider

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01238220A (en) * 1988-03-18 1989-09-22 Fujitsu Ltd Variable frequency dividing circuit
JPH06197855A (en) * 1992-11-11 1994-07-19 Shimomura Komuten:Kk Cleaning unit

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