JPS55143847A - Wide band receiving circuit - Google Patents

Wide band receiving circuit

Info

Publication number
JPS55143847A
JPS55143847A JP5208879A JP5208879A JPS55143847A JP S55143847 A JPS55143847 A JP S55143847A JP 5208879 A JP5208879 A JP 5208879A JP 5208879 A JP5208879 A JP 5208879A JP S55143847 A JPS55143847 A JP S55143847A
Authority
JP
Japan
Prior art keywords
signal
wide band
oscillator
mixer
supplied
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
JP5208879A
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 JP5208879A priority Critical patent/JPS55143847A/en
Publication of JPS55143847A publication Critical patent/JPS55143847A/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

Abstract

PURPOSE:To make it possible to receive the 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 switching circuit 15 and tuning oscillator 29 which can switch the frequency. Now, when the FM broadcasting wave is received, switching circuit 15 is switched, and oscillator 29 is switched to a prescribed frequency. 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 oscillator 29 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, this output is amplified by 11 and is supplied to speaker 12. Thus, the FM broadcasting wave can be received besides VHF and UHF-band TV broadcasting waves.
JP5208879A 1979-04-26 1979-04-26 Wide band receiving circuit Pending JPS55143847A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5208879A JPS55143847A (en) 1979-04-26 1979-04-26 Wide band receiving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5208879A JPS55143847A (en) 1979-04-26 1979-04-26 Wide band receiving circuit

Publications (1)

Publication Number Publication Date
JPS55143847A true JPS55143847A (en) 1980-11-10

Family

ID=12905065

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5208879A Pending JPS55143847A (en) 1979-04-26 1979-04-26 Wide band receiving circuit

Country Status (1)

Country Link
JP (1) JPS55143847A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6373721A (en) * 1986-09-16 1988-04-04 Sony Corp Fm-tv receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6373721A (en) * 1986-09-16 1988-04-04 Sony Corp Fm-tv receiver

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