JPS5597706A - Marker signal generator of sweep oscillator - Google Patents

Marker signal generator of sweep oscillator

Info

Publication number
JPS5597706A
JPS5597706A JP496879A JP496879A JPS5597706A JP S5597706 A JPS5597706 A JP S5597706A JP 496879 A JP496879 A JP 496879A JP 496879 A JP496879 A JP 496879A JP S5597706 A JPS5597706 A JP S5597706A
Authority
JP
Japan
Prior art keywords
marker
frequency
voltage
sweep
equivalent
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
JP496879A
Other languages
Japanese (ja)
Other versions
JPS6139762B2 (en
Inventor
Yoshikatsu Mino
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.)
READER DENSHI KK
Original Assignee
READER DENSHI 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 READER DENSHI KK filed Critical READER DENSHI KK
Priority to JP496879A priority Critical patent/JPS5597706A/en
Publication of JPS5597706A publication Critical patent/JPS5597706A/en
Publication of JPS6139762B2 publication Critical patent/JPS6139762B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B23/00—Generation of oscillations periodically swept over a predetermined frequency range

Landscapes

  • Manipulation Of Pulses (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

PURPOSE:To enable a simple constitution to simplify an adjustment and also to hold marker precision excellent for a long period, by holding a voltage equivalent to a marker frequency by each capacitor and by comparing and outputting a voltage equivalent to a sweep frequency. CONSTITUTION:The output signal of sweep oscillator 11 and those of marker frequency oscillators 12 and 13 are divided in time-division mode and then applied to frequency/voltage converter 18, where those time-divided signals are converted into voltages corresponding to respective frequencies. Then, a voltage equivalent to a marker frequency is held by using capacitors C1 and C2 and this held voltage is compared with voltages equivalent to sweep frequencies by comparators 23 and 24 to generate a marker signal. Consequently, the simple constitution simplifies an adjustment and maintains excellent marker precision for a long period.
JP496879A 1979-01-19 1979-01-19 Marker signal generator of sweep oscillator Granted JPS5597706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP496879A JPS5597706A (en) 1979-01-19 1979-01-19 Marker signal generator of sweep oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP496879A JPS5597706A (en) 1979-01-19 1979-01-19 Marker signal generator of sweep oscillator

Publications (2)

Publication Number Publication Date
JPS5597706A true JPS5597706A (en) 1980-07-25
JPS6139762B2 JPS6139762B2 (en) 1986-09-05

Family

ID=11598381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP496879A Granted JPS5597706A (en) 1979-01-19 1979-01-19 Marker signal generator of sweep oscillator

Country Status (1)

Country Link
JP (1) JPS5597706A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS499956A (en) * 1972-05-13 1974-01-29

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS499956A (en) * 1972-05-13 1974-01-29

Also Published As

Publication number Publication date
JPS6139762B2 (en) 1986-09-05

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