JPS5791039A - Fm receiver - Google Patents

Fm receiver

Info

Publication number
JPS5791039A
JPS5791039A JP55168896A JP16889680A JPS5791039A JP S5791039 A JPS5791039 A JP S5791039A JP 55168896 A JP55168896 A JP 55168896A JP 16889680 A JP16889680 A JP 16889680A JP S5791039 A JPS5791039 A JP S5791039A
Authority
JP
Japan
Prior art keywords
electric field
amplifier
audio
strength
detector
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
JP55168896A
Other languages
Japanese (ja)
Inventor
Hideyo Ono
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP55168896A priority Critical patent/JPS5791039A/en
Publication of JPS5791039A publication Critical patent/JPS5791039A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0245—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal according to signal strength
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

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

Abstract

PURPOSE:To preferentially demodulate audio reproduction with fidelity at a strong electric field and with reception articulation at a weak electric field, by providing an electric field strength detector at an intermediate frequency band and switchig an audio demodulation frequency characteristic according to the strength of electric field. CONSTITUTION:Signal sent from a high frequency amplifier 1 and a local oscillator 2 are received at a mixer 3, converted into an intermediate frequency, amplified at an intermediate frequency amplifier 4 and inputted to a frequency discriminator 5. The output of the amplifier 4 is inputted to electric field detector 7, which derives a switch circuit 9 when the strength of electric field is higher than a specified level to connect the demodulated audio output from the discriminator 5 to an audio amplifier 6a, and if the strength of electric field is a weak electric field of a prescribed level of less, the output of the discriminator 5 is given to an audio amplifier 6b. The amplifier 6a has a wide frequency characteristic of audio band and provides the reproduction with fidelity, and the amplifier 6b attenuates low and high frequncies of audio band and emphasizes middle frequencies to give a preference to articulation. A hysteresis characteristic is given for the operation of a detector to keep the output of the detector 7 consistant to the frequent variance of strength of electric field.
JP55168896A 1980-11-27 1980-11-27 Fm receiver Pending JPS5791039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55168896A JPS5791039A (en) 1980-11-27 1980-11-27 Fm receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55168896A JPS5791039A (en) 1980-11-27 1980-11-27 Fm receiver

Publications (1)

Publication Number Publication Date
JPS5791039A true JPS5791039A (en) 1982-06-07

Family

ID=15876571

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55168896A Pending JPS5791039A (en) 1980-11-27 1980-11-27 Fm receiver

Country Status (1)

Country Link
JP (1) JPS5791039A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57198141U (en) * 1981-06-10 1982-12-16
JPS63111036U (en) * 1987-01-08 1988-07-16
JPS6478035A (en) * 1987-09-18 1989-03-23 Mazda Motor Receiver
US5028883A (en) * 1988-09-22 1991-07-02 Kabushiki Kaisha Toshiba Tone controller for attenuating noise in the signal generated by receiver from weak electric field, and receiver having the tone controller

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS579391A (en) * 1980-06-17 1982-01-18 Nikkiso Co Ltd Quick connector device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS579391A (en) * 1980-06-17 1982-01-18 Nikkiso Co Ltd Quick connector device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57198141U (en) * 1981-06-10 1982-12-16
JPS63111036U (en) * 1987-01-08 1988-07-16
JPS6478035A (en) * 1987-09-18 1989-03-23 Mazda Motor Receiver
US5028883A (en) * 1988-09-22 1991-07-02 Kabushiki Kaisha Toshiba Tone controller for attenuating noise in the signal generated by receiver from weak electric field, and receiver having the tone controller

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