JPS5459811A - Receiver - Google Patents

Receiver

Info

Publication number
JPS5459811A
JPS5459811A JP12619577A JP12619577A JPS5459811A JP S5459811 A JPS5459811 A JP S5459811A JP 12619577 A JP12619577 A JP 12619577A JP 12619577 A JP12619577 A JP 12619577A JP S5459811 A JPS5459811 A JP S5459811A
Authority
JP
Japan
Prior art keywords
received
oscillator circuit
frequency
mixer
local oscillation
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
JP12619577A
Other languages
Japanese (ja)
Other versions
JPS6019857B2 (en
Inventor
Tsutomu Sato
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP12619577A priority Critical patent/JPS6019857B2/en
Publication of JPS5459811A publication Critical patent/JPS5459811A/en
Publication of JPS6019857B2 publication Critical patent/JPS6019857B2/en
Expired 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • 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
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

PURPOSE:To ensure the steady reception through a simple constitution by supplying the signals based on the variable oscillator circuit at the AM receiving time as well as the output signals of the synthesizer fixing oscillator circuit at the FM receiveing time to PLL respectively to use them as the local oscillation frequency. CONSTITUTION:The AM reception system detects (18) the electric wave received through antenna 11 via first and second mixers 14 and 16, and the FM system leads the reception wave of FM antenna 31 to mixer 34 for demodulation 36. When the AM frequency band is received, the signals based on variable frequency oscillator circuit VFO41 are supplied to PLL41. Then the first frequency conversion is carried out through mixer 14 with the output signal of PLL41 used as the first oscillation signal. At the same time, the second frequency conversion is performed through mixer 16 with the output signal of synthesizer fixing oscillator circuit 42 used as the second local oscillation signal. On the other hand, the output signal of circuit 42 is supplied to PLL40B when the FM frequency band is received, and the output receives frequency conversion 44 in the form of the local oscillation signal. In this way, both AM and FM can be received through a simple constitution.
JP12619577A 1977-10-20 1977-10-20 Receiving machine Expired JPS6019857B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12619577A JPS6019857B2 (en) 1977-10-20 1977-10-20 Receiving machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12619577A JPS6019857B2 (en) 1977-10-20 1977-10-20 Receiving machine

Publications (2)

Publication Number Publication Date
JPS5459811A true JPS5459811A (en) 1979-05-14
JPS6019857B2 JPS6019857B2 (en) 1985-05-18

Family

ID=14929042

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12619577A Expired JPS6019857B2 (en) 1977-10-20 1977-10-20 Receiving machine

Country Status (1)

Country Link
JP (1) JPS6019857B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56104252U (en) * 1980-02-20 1981-08-14

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56104252U (en) * 1980-02-20 1981-08-14
JPS6342601Y2 (en) * 1980-02-20 1988-11-08

Also Published As

Publication number Publication date
JPS6019857B2 (en) 1985-05-18

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Legal Events

Date Code Title Description
A131 Notification of reasons for refusal

Effective date: 20040831

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A313 Final decision of rejection without a dissenting response from the applicant

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Effective date: 20050124

A02 Decision of refusal

Effective date: 20050308

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