JPS54114967A - Comparison detection circuit - Google Patents

Comparison detection circuit

Info

Publication number
JPS54114967A
JPS54114967A JP2227778A JP2227778A JPS54114967A JP S54114967 A JPS54114967 A JP S54114967A JP 2227778 A JP2227778 A JP 2227778A JP 2227778 A JP2227778 A JP 2227778A JP S54114967 A JPS54114967 A JP S54114967A
Authority
JP
Japan
Prior art keywords
signal
clock pulse
counter
detection circuit
comparison
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
JP2227778A
Other languages
Japanese (ja)
Other versions
JPS601785B2 (en
Inventor
Yasoji Suzuki
Hiroshi Kawasaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2227778A priority Critical patent/JPS601785B2/en
Publication of JPS54114967A publication Critical patent/JPS54114967A/en
Publication of JPS601785B2 publication Critical patent/JPS601785B2/en
Expired 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

  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To establish the comparison detection circuit which can not cause malfunction from the effect of the stray capacitance of the signal lines through which the counter output of the counter circut is delivered. CONSTITUTION:The signals q1 to q3 before a half bit shift for the counter output signals Q1 to Q3 of counter circuit 21 counting sequentially the clock pulse phi supplied and the bit data LD1 to LD3 preset are compared 44 each other. Further, this comparison signal is shifted 48 in a half bit of the clock pulse phi, so that the ''1'' level signal of the pulse length less than a half bit of the clock pulse phi established in the comparison signal can not be detected. Thus, the coincidence signal is established only when the number of count is in agreement with the number of counts expressed in the bit data LD1 to LD3 preset, therefore no malfunction can not be caused independently of the value of stray capacitance of the delivery signal lines.
JP2227778A 1978-02-28 1978-02-28 Count comparison detection circuit for synchronous counter circuit Expired JPS601785B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2227778A JPS601785B2 (en) 1978-02-28 1978-02-28 Count comparison detection circuit for synchronous counter circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2227778A JPS601785B2 (en) 1978-02-28 1978-02-28 Count comparison detection circuit for synchronous counter circuit

Publications (2)

Publication Number Publication Date
JPS54114967A true JPS54114967A (en) 1979-09-07
JPS601785B2 JPS601785B2 (en) 1985-01-17

Family

ID=12078256

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2227778A Expired JPS601785B2 (en) 1978-02-28 1978-02-28 Count comparison detection circuit for synchronous counter circuit

Country Status (1)

Country Link
JP (1) JPS601785B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58171130A (en) * 1982-03-31 1983-10-07 Matsushita Electric Ind Co Ltd Programmable counter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3060029B1 (en) * 2015-02-17 2017-07-19 Illinois Tool Works Inc. Apparatus and method for defrosting and/or cooking foods

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58171130A (en) * 1982-03-31 1983-10-07 Matsushita Electric Ind Co Ltd Programmable counter
JPH0161267B2 (en) * 1982-03-31 1989-12-27 Matsushita Electric Ind Co Ltd

Also Published As

Publication number Publication date
JPS601785B2 (en) 1985-01-17

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