JPS5549040A - Unit time pulse generator - Google Patents

Unit time pulse generator

Info

Publication number
JPS5549040A
JPS5549040A JP12226478A JP12226478A JPS5549040A JP S5549040 A JPS5549040 A JP S5549040A JP 12226478 A JP12226478 A JP 12226478A JP 12226478 A JP12226478 A JP 12226478A JP S5549040 A JPS5549040 A JP S5549040A
Authority
JP
Japan
Prior art keywords
circuit
inputted
frequency
numeral
unit
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
JP12226478A
Other languages
Japanese (ja)
Inventor
Yoshiro Yanagi
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.)
SENDAI SEIMITSU ZAIRYO KENKYUS
Seiko Electronic Components Ltd
Original Assignee
SENDAI SEIMITSU ZAIRYO KENKYUS
Seiko Electronic Components 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 SENDAI SEIMITSU ZAIRYO KENKYUS, Seiko Electronic Components Ltd filed Critical SENDAI SEIMITSU ZAIRYO KENKYUS
Priority to JP12226478A priority Critical patent/JPS5549040A/en
Publication of JPS5549040A publication Critical patent/JPS5549040A/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

Landscapes

  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To make it possible to generate any repetitive pulse at any time interval by providing a reference oscillation frequency generating circuit, memory circuit for the number of repetitive pulses, circuit which obtains the inverse number of its output, and divider circuit. CONSTITUTION:Needed time unit (k) and its numeral (y) are inputted to unit time setting part 1, where they are stored. The numeral is inputted to 1/y circuit 2 to find its inverse number and single-time unit (k) is inputted to k.1/y.10<n> circuit 3, where it is multiplied by the output of circuit 2; and numeral (n) indicating the number of digits below a decimal point needed for it is inputted and operated and its result is inputted to k.1/y.10<n> oscillation circuit 4, thereby generating a reference frequency corresponding to the arithmetic value. Needed unit frequency (x) is stored in unit frequency setting part 5, whose output is operated by 1/x circuit 6 and 1/x.10<n> circuit 7, outputs of which are inputted to divider circuit 8, so that the reference from circuit 4 frequency will be divided by this numeral. Consequently, pulses of a desired frequency can be generated at any time intervals with any precision.
JP12226478A 1978-10-03 1978-10-03 Unit time pulse generator Pending JPS5549040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12226478A JPS5549040A (en) 1978-10-03 1978-10-03 Unit time pulse generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12226478A JPS5549040A (en) 1978-10-03 1978-10-03 Unit time pulse generator

Publications (1)

Publication Number Publication Date
JPS5549040A true JPS5549040A (en) 1980-04-08

Family

ID=14831643

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12226478A Pending JPS5549040A (en) 1978-10-03 1978-10-03 Unit time pulse generator

Country Status (1)

Country Link
JP (1) JPS5549040A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6277716A (en) * 1985-09-30 1987-04-09 Nec Corp Frequency division circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6277716A (en) * 1985-09-30 1987-04-09 Nec Corp Frequency division circuit

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