JPS55143845A - Wide band receiving circuit - Google Patents

Wide band receiving circuit

Info

Publication number
JPS55143845A
JPS55143845A JP5208679A JP5208679A JPS55143845A JP S55143845 A JPS55143845 A JP S55143845A JP 5208679 A JP5208679 A JP 5208679A JP 5208679 A JP5208679 A JP 5208679A JP S55143845 A JPS55143845 A JP S55143845A
Authority
JP
Japan
Prior art keywords
signal
wide band
mixer
supplied
converted
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.)
Pending
Application number
JP5208679A
Other languages
Japanese (ja)
Inventor
Mitsuo Saito
Sadahiko Yamashita
Morikazu Sagawa
Hiroshi Onishi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP5208679A priority Critical patent/JPS55143845A/en
Publication of JPS55143845A publication Critical patent/JPS55143845A/en
Pending 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)
  • Television Receiver Circuits (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

PURPOSE:To make it possible to receive an FM broadcasting wave also, by adding a prescribed circuit to the wide band receiver of the double mixture system. CONSTITUTION:The wide band receiver of the double mixture system is provided with fixed oscillator 17 and switching circuits 14 and 15. Now, switching circuits 14 and 15 are switched when the FM broadcasting wave is received. Then, the signal from wide band amplifier 1 is converted to the first IF signal by mixer 2 and tuning oscillator 3 and is supplied to mixer 5 through BPF4. This converted signal is mixed with the signal of fixed oscillator 17 in mixer 5 and is converted to the second FM IF signal 19 and is supplied to sound FM detector 10 through IF amplifier 9. Next, the detected sound signal is supplied to speaker 12. Thus, the FM broadcasting wave can be received besides VHF and UHF-band TV broadcasting waves.
JP5208679A 1979-04-26 1979-04-26 Wide band receiving circuit Pending JPS55143845A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5208679A JPS55143845A (en) 1979-04-26 1979-04-26 Wide band receiving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5208679A JPS55143845A (en) 1979-04-26 1979-04-26 Wide band receiving circuit

Publications (1)

Publication Number Publication Date
JPS55143845A true JPS55143845A (en) 1980-11-10

Family

ID=12905008

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5208679A Pending JPS55143845A (en) 1979-04-26 1979-04-26 Wide band receiving circuit

Country Status (1)

Country Link
JP (1) JPS55143845A (en)

Similar Documents

Publication Publication Date Title
JPS57155885A (en) Television and fm receiver
JPS55143845A (en) Wide band receiving circuit
JPS55143847A (en) Wide band receiving circuit
JPS55143846A (en) Wide band receiving circuit
JPS52102626A (en) Tv receiver
JPS5318912A (en) Signal reception circuit of television receiver
JPS5555618A (en) Radio receiver
JPS5579538A (en) Tuner unit of television receiver
SU587641A1 (en) Tv system
JPS5564478A (en) Television sound multiplex receiver
JPS5644276A (en) Television receiver
JPS5678239A (en) Tuner
JPS55162637A (en) Fm receiver
JPS5586229A (en) Receiver
JPS54150921A (en) Television voice receiver
JPS5783944A (en) Am stereophonic receiver
TH6372B (en) The use of the first center frequency of 43.5 MHz or less on the FM radio in the tuner of the television.
JPS61141225A (en) Am receiver
JPS55136775A (en) Television audio multiplex receiver
JPS6432579A (en) Earphone exclusive use television audio receiver
JPS5821449B2 (en) Automatic tuning trigger circuit
JPS55104112A (en) Agc circuit
JPS5330809A (en) Tuning circuit for vhf television receiver set
JPS57148417A (en) Fm preset receiver for radio common system
JPS5555630A (en) Multiplex broadcast reception system in television receiver