JPS54121002A - Receiving frequency display circuit for radio receiver - Google Patents

Receiving frequency display circuit for radio receiver

Info

Publication number
JPS54121002A
JPS54121002A JP2969378A JP2969378A JPS54121002A JP S54121002 A JPS54121002 A JP S54121002A JP 2969378 A JP2969378 A JP 2969378A JP 2969378 A JP2969378 A JP 2969378A JP S54121002 A JPS54121002 A JP S54121002A
Authority
JP
Japan
Prior art keywords
intermediate frequency
correction
value
decimal counter
radio receiver
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
JP2969378A
Other languages
Japanese (ja)
Other versions
JPS5823020B2 (en
Inventor
Yasuhiko Okuyama
Takeshi Takitani
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP2969378A priority Critical patent/JPS5823020B2/en
Priority to US06/017,061 priority patent/US4247950A/en
Priority to FR7906299A priority patent/FR2420247B1/en
Priority to NLAANVRAGE7901954,A priority patent/NL179174C/en
Priority to DE2909784A priority patent/DE2909784C2/en
Publication of JPS54121002A publication Critical patent/JPS54121002A/en
Publication of JPS5823020B2 publication Critical patent/JPS5823020B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

PURPOSE: To secure the adjustment in the fine range with one piece of the input terminal by giving correction according to the shift of the intermediate frequency value and based on the multi-bit pulse signals.
CONSTITUTION: The range of the correctable frequency is divided into half, and the halved number 16 is subtracted when the intermediate frequency is preset to decimal counter 1a, 1b and so on. Accordingly, the value which is first preset to the decimal counter is the minimum value, and thus the correction is given according to the shift of the intermediate frequency. When the intermediate frequency is lower than the correct value, the correction number to be added to the decimal counter is larger than 17; while the intermediate frequency is higher than the correct value, the correction number becomes smaller than 15. And the correction number becomes 16 when the intermediate frequency is correct. Thus, the correction is possible even though the intermediate frequency shifts at a low or high level.
COPYRIGHT: (C)1979,JPO&Japio
JP2969378A 1978-03-13 1978-03-13 Radio receiver reception frequency display circuit Expired JPS5823020B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2969378A JPS5823020B2 (en) 1978-03-13 1978-03-13 Radio receiver reception frequency display circuit
US06/017,061 US4247950A (en) 1978-03-13 1979-03-02 Display for frequency received by radio receiver
FR7906299A FR2420247B1 (en) 1978-03-13 1979-03-12 DISPLAY DEVICE
NLAANVRAGE7901954,A NL179174C (en) 1978-03-13 1979-03-12 HETERODYNE RECEIVER.
DE2909784A DE2909784C2 (en) 1978-03-13 1979-03-13 Heterodyne receiver with digital reception frequency display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2969378A JPS5823020B2 (en) 1978-03-13 1978-03-13 Radio receiver reception frequency display circuit

Publications (2)

Publication Number Publication Date
JPS54121002A true JPS54121002A (en) 1979-09-19
JPS5823020B2 JPS5823020B2 (en) 1983-05-12

Family

ID=12283178

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2969378A Expired JPS5823020B2 (en) 1978-03-13 1978-03-13 Radio receiver reception frequency display circuit

Country Status (1)

Country Link
JP (1) JPS5823020B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6818873B2 (en) 2017-04-03 2021-01-20 三菱電機株式会社 Switching element drive unit
JP6509414B1 (en) 2018-07-30 2019-05-08 三菱電機株式会社 Power converter
JP6541859B1 (en) 2018-11-01 2019-07-10 三菱電機株式会社 Power converter

Also Published As

Publication number Publication date
JPS5823020B2 (en) 1983-05-12

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