JPS573420A - Digital phase comparison circuit - Google Patents

Digital phase comparison circuit

Info

Publication number
JPS573420A
JPS573420A JP7747180A JP7747180A JPS573420A JP S573420 A JPS573420 A JP S573420A JP 7747180 A JP7747180 A JP 7747180A JP 7747180 A JP7747180 A JP 7747180A JP S573420 A JPS573420 A JP S573420A
Authority
JP
Japan
Prior art keywords
terminal
phase comparison
duty ratio
comparison circuit
digital phase
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
JP7747180A
Other languages
Japanese (ja)
Other versions
JPS6361806B2 (en
Inventor
Hiroshi Suzuki
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.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
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 Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP7747180A priority Critical patent/JPS573420A/en
Publication of JPS573420A publication Critical patent/JPS573420A/en
Publication of JPS6361806B2 publication Critical patent/JPS6361806B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
    • H03K5/26—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being duration, interval, position, frequency, or sequence

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Manipulation Of Pulses (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

PURPOSE:To change a threshold value of a comparator, by providing a circuit which changes the duty ratio of an input signal at the prestage of a phase comparator. CONSTITUTION:A reference signal is given to a terminal 13, delayed at a phase shift circuit 17 and applied to a trigger terminal of a D-FF22. An input signal of an input terminal 12 is given to a D terminal of the D-FF22 via a duty ratio conversion circuit 23. The changing point of an output of a D-FF23, that is, the threshold value of a phase comparison device, can be changed by changing the duty ratio at a conversion circuit 23.
JP7747180A 1980-06-09 1980-06-09 Digital phase comparison circuit Granted JPS573420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7747180A JPS573420A (en) 1980-06-09 1980-06-09 Digital phase comparison circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7747180A JPS573420A (en) 1980-06-09 1980-06-09 Digital phase comparison circuit

Publications (2)

Publication Number Publication Date
JPS573420A true JPS573420A (en) 1982-01-08
JPS6361806B2 JPS6361806B2 (en) 1988-11-30

Family

ID=13634892

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7747180A Granted JPS573420A (en) 1980-06-09 1980-06-09 Digital phase comparison circuit

Country Status (1)

Country Link
JP (1) JPS573420A (en)

Also Published As

Publication number Publication date
JPS6361806B2 (en) 1988-11-30

Similar Documents

Publication Publication Date Title
JPS52147729A (en) Frequency converter
JPS5672510A (en) Muting circuit
JPS573420A (en) Digital phase comparison circuit
JPS57106221A (en) Analogue-digital converter
JPS5232655A (en) Logic low-pass filter circuit
JPS5339048A (en) Delay circuit
JPS5523606A (en) Analog digital converter
JPS57159107A (en) Range changeover amplifier
JPS5723334A (en) Tuning circuit equipped with vco
JPS5689125A (en) Binary circuit
JPS545370A (en) Digital quantity-pulse duration converter
JPS5682453A (en) Effective value converter
JPS6410742A (en) Digital signal transmission system
JPS56103535A (en) Level converting circuit of binary signal
JPS5275236A (en) Signal processing circuit
JPS5378157A (en) Delta modulatio circuit
JPS56120247A (en) Signal detection circuit
JPS5779732A (en) Waveform coder
JPS5389646A (en) Automatic gain control circuit
JPS5516523A (en) Preset channel selector
JPS5357733A (en) Pulse subtraction circuit
JPS54159246A (en) Resistance value output circuit
JPS52110508A (en) Digital limiter circuit
JPS5412208A (en) Gain-stabilized transmitter
JPS52100865A (en) Signal conversion circuit