JPS56114446A - Specified signal receiving equipment - Google Patents

Specified signal receiving equipment

Info

Publication number
JPS56114446A
JPS56114446A JP1749180A JP1749180A JPS56114446A JP S56114446 A JPS56114446 A JP S56114446A JP 1749180 A JP1749180 A JP 1749180A JP 1749180 A JP1749180 A JP 1749180A JP S56114446 A JPS56114446 A JP S56114446A
Authority
JP
Japan
Prior art keywords
frequency
frequency amplifier
oscillator
low frequency
amplified
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
JP1749180A
Other languages
Japanese (ja)
Inventor
Kiyotake Fukui
Shuichi Ninomiya
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 JP1749180A priority Critical patent/JPS56114446A/en
Publication of JPS56114446A publication Critical patent/JPS56114446A/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
    • H04B1/06—Receivers
    • H04B1/16—Circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

PURPOSE:To enable to exactly listen to an emergency broadcast without causing an operation error, by constituting the equipment so that it tunes with an optional broadcast in a normal state that the low frequency amplifier is operated, and it receives a specified broadcasting station automatically by switching to a holding state. CONSTITUTION:An incoming wave signal from the antenna 1 is amplified by the high frequency amplifier 2, it is converted to the intermediate frequency by the frequency transducer 3, is amplified by the intermediate frequency amplifier 6, and is detected by the detector 7. This detection signal is further amplified by the low frequency amplifier 10, and it is converted to a sound by the speaker 11. On the other hand, an emergency information signal contained in the detection signal is discriminated by the decoder 8, and the switch 9 for controlling the operation of the low frequency amplifier 10 is driven by the output of the decoder 8. In this case, the switch 12 is a holding state change-over switch for controlling the operation of the low frequency amplifier 10 from the outside. Also, this equipment is provided with a variable frequency oscillator 4 which is equipped with a 2 system oscillator as a frequency converting local oscillator, and can vary the frequency optionally, and also a fixed frequency oscillator 5 which can be fixed so that only the specified broadcasting frequency can be received.
JP1749180A 1980-02-14 1980-02-14 Specified signal receiving equipment Pending JPS56114446A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1749180A JPS56114446A (en) 1980-02-14 1980-02-14 Specified signal receiving equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1749180A JPS56114446A (en) 1980-02-14 1980-02-14 Specified signal receiving equipment

Publications (1)

Publication Number Publication Date
JPS56114446A true JPS56114446A (en) 1981-09-09

Family

ID=11945467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1749180A Pending JPS56114446A (en) 1980-02-14 1980-02-14 Specified signal receiving equipment

Country Status (1)

Country Link
JP (1) JPS56114446A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56134846A (en) * 1980-03-25 1981-10-21 Matsushita Electric Ind Co Ltd Specific signal receiving device
JPS635634A (en) * 1986-06-25 1988-01-11 Matsushita Electric Works Ltd Alert receiver
JPH0555640U (en) * 1991-12-25 1993-07-23 株式会社ケンウッド FM receiver

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56134846A (en) * 1980-03-25 1981-10-21 Matsushita Electric Ind Co Ltd Specific signal receiving device
JPS635634A (en) * 1986-06-25 1988-01-11 Matsushita Electric Works Ltd Alert receiver
JPH0555640U (en) * 1991-12-25 1993-07-23 株式会社ケンウッド FM receiver

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