JPS57162842A - Receiver - Google Patents

Receiver

Info

Publication number
JPS57162842A
JPS57162842A JP4879881A JP4879881A JPS57162842A JP S57162842 A JPS57162842 A JP S57162842A JP 4879881 A JP4879881 A JP 4879881A JP 4879881 A JP4879881 A JP 4879881A JP S57162842 A JPS57162842 A JP S57162842A
Authority
JP
Japan
Prior art keywords
signal
circuit
deltaf
constitution
frequency
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
JP4879881A
Other languages
Japanese (ja)
Other versions
JPH0128545B2 (en
Inventor
Shigenobu Kimura
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.)
Nippon Gakki Co Ltd
Original Assignee
Nippon Gakki 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 Nippon Gakki Co Ltd filed Critical Nippon Gakki Co Ltd
Priority to JP4879881A priority Critical patent/JPS57162842A/en
Publication of JPS57162842A publication Critical patent/JPS57162842A/en
Publication of JPH0128545B2 publication Critical patent/JPH0128545B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference

Abstract

PURPOSE:To achieve an audio signal with possible excellent sound quality, by detecting the state of an interference signal through the change in the tuning frequency for a prescribed frequency width taking a desired reception frequency as the center and setting the constitution of an amplifying circuit to a most suited state. CONSTITUTION:A control signal Vc is outputted to change the tuning frequency upper and lower by taking a frequency f0 as the center by DELTAf from a channel selection circuit 9. From a narrow band amplifying circuit 6, an intermediate frequency signal corresponding to the signal level at a point apart by DELTAf is outputted, the level is detected via a level detection circuit 7 and a signal E(DELTAf) is obtained. A signal corresponding to DELTAf is outputted from the circuit 9 and applied to an RF constitution amplifying circuit 10. The circuit 10 compares a signal corresponding to the DELTAf and the signal E(DELTAf) with the stored data, and the optimum constitution of the circuit 10 is obtained to the state of the interference signal, and a set signal VX corresponding to the constitution is applied to an RF amplifying circuit 2. As a result, the tuning characteristics or gain of the circuit 2 can be set to the most suited content in matching with the reception state at that time.
JP4879881A 1981-04-01 1981-04-01 Receiver Granted JPS57162842A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4879881A JPS57162842A (en) 1981-04-01 1981-04-01 Receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4879881A JPS57162842A (en) 1981-04-01 1981-04-01 Receiver

Publications (2)

Publication Number Publication Date
JPS57162842A true JPS57162842A (en) 1982-10-06
JPH0128545B2 JPH0128545B2 (en) 1989-06-02

Family

ID=12813239

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4879881A Granted JPS57162842A (en) 1981-04-01 1981-04-01 Receiver

Country Status (1)

Country Link
JP (1) JPS57162842A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55130242A (en) * 1979-03-30 1980-10-08 Matsushita Electric Ind Co Ltd Receiver
JPS5755610A (en) * 1980-09-19 1982-04-02 Matsushita Electric Ind Co Ltd Synthesizer receiver

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55130242A (en) * 1979-03-30 1980-10-08 Matsushita Electric Ind Co Ltd Receiver
JPS5755610A (en) * 1980-09-19 1982-04-02 Matsushita Electric Ind Co Ltd Synthesizer receiver

Also Published As

Publication number Publication date
JPH0128545B2 (en) 1989-06-02

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