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JPS57185707A - Frequency conversion circuit - Google Patents

Frequency conversion circuit

Info

Publication number
JPS57185707A
JPS57185707A JP7099381A JP7099381A JPS57185707A JP S57185707 A JPS57185707 A JP S57185707A JP 7099381 A JP7099381 A JP 7099381A JP 7099381 A JP7099381 A JP 7099381A JP S57185707 A JPS57185707 A JP S57185707A
Authority
JP
Japan
Prior art keywords
frequency
signal
input high
high frequency
frequency conversion
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
JP7099381A
Other languages
Japanese (ja)
Other versions
JPH0261803B2 (en
Inventor
Shigeru Tanimoto
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.)
Hewlett Packard Japan Inc
Original Assignee
Yokogawa Hewlett Packard 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 Yokogawa Hewlett Packard Ltd filed Critical Yokogawa Hewlett Packard Ltd
Priority to JP7099381A priority Critical patent/JPS57185707A/en
Publication of JPS57185707A publication Critical patent/JPS57185707A/en
Publication of JPH0261803B2 publication Critical patent/JPH0261803B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

PURPOSE:To make a synchronizing time almost zero and to obtain a frequency conversion with the same sampling order at all times, by frequency-dividing a frequency lower than an input high frequency signal by a desired value and generating sampling pulses based on said frequency-divided frequency. CONSTITUTION:An input high frequency signal f0 is given to a signal generator 23 having a PLL circuit and a sampler circuit 25. The reference frequency fM of the signal generator 23 is selected equally as the frequency after frequency conversion. Thus, the signal generator 23 generates a frequency fs lower than the input high frequency f0 by a desired frequency fM. A sample pulse generator 29 generates pulse signals with narrow width in the frequency fs. An output signal f'M by mixing this pulse signal and the input high frequency signal at the sampler 25 in an open loop for the higher hormonics.
JP7099381A 1981-05-12 1981-05-12 Frequency conversion circuit Granted JPS57185707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7099381A JPS57185707A (en) 1981-05-12 1981-05-12 Frequency conversion circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7099381A JPS57185707A (en) 1981-05-12 1981-05-12 Frequency conversion circuit

Publications (2)

Publication Number Publication Date
JPS57185707A true JPS57185707A (en) 1982-11-16
JPH0261803B2 JPH0261803B2 (en) 1990-12-21

Family

ID=13447573

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7099381A Granted JPS57185707A (en) 1981-05-12 1981-05-12 Frequency conversion circuit

Country Status (1)

Country Link
JP (1) JPS57185707A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100825762B1 (en) * 2006-08-07 2008-04-29 한국전자통신연구원 Circuit for measuring a discontinuous metal-insulator transitionMIT continuously and MIT sensor using the same circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239305A (en) * 1975-09-25 1977-03-26 Hitachi Ltd Code transmission system
JPS55162413U (en) * 1979-05-11 1980-11-21

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239305A (en) * 1975-09-25 1977-03-26 Hitachi Ltd Code transmission system
JPS55162413U (en) * 1979-05-11 1980-11-21

Also Published As

Publication number Publication date
JPH0261803B2 (en) 1990-12-21

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