JPS5767343A - Loud radio equipment - Google Patents

Loud radio equipment

Info

Publication number
JPS5767343A
JPS5767343A JP55144973A JP14497380A JPS5767343A JP S5767343 A JPS5767343 A JP S5767343A JP 55144973 A JP55144973 A JP 55144973A JP 14497380 A JP14497380 A JP 14497380A JP S5767343 A JPS5767343 A JP S5767343A
Authority
JP
Japan
Prior art keywords
broadcast
circuit
loud
noise
detected
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
JP55144973A
Other languages
Japanese (ja)
Inventor
Masakatsu Tamura
Toshio Koyama
Kunio Akiba
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 JP55144973A priority Critical patent/JPS5767343A/en
Publication of JPS5767343A publication Critical patent/JPS5767343A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
    • H04H20/59—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for emergency or urgency
    • 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
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • 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
    • H04W52/0238—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is an unwanted signal, e.g. interference or idle signal
    • 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)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE:To economize the electric power consumption, by supplying power after detecting a broadcast start signal and detecting a noise during the time from poweron to the broadcast start and controlling, the sound volume in accordance with the level of the noise to perform the loud ratio broadcast with a sound volume adapted to the broadcast region. CONSTITUTION:Broadcast information is transmitted by radio waves, and this information is detected by a loud ratio equipment provided with an antenna 17 and is loundened. Broadcast information is detected by a detecting circuit 8 of this loud radio equipment, and the tone signal of broadcast information is detected by a tone detector 13, and a power supply part 15 is controlled by the detection output to apply power to an audio circuit block 16. The tone signal is applied to a sample hold control signal generating circuit 14, and the output is applied to a sample hold circuit 6 which holds the noise level during broadcasting, and the noise during the time from the tone detection to the broadcast start is held in the circuit 6. The noise level is held in the circuit 6 during broadcasting by the control signal, and a voltage control attenuator 10 is controlled to obtain a sound volume adapted to the broadcast region.
JP55144973A 1980-10-15 1980-10-15 Loud radio equipment Pending JPS5767343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55144973A JPS5767343A (en) 1980-10-15 1980-10-15 Loud radio equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55144973A JPS5767343A (en) 1980-10-15 1980-10-15 Loud radio equipment

Publications (1)

Publication Number Publication Date
JPS5767343A true JPS5767343A (en) 1982-04-23

Family

ID=15374499

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55144973A Pending JPS5767343A (en) 1980-10-15 1980-10-15 Loud radio equipment

Country Status (1)

Country Link
JP (1) JPS5767343A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009054418A (en) * 2007-08-27 2009-03-12 Tokai Rika Co Ltd Switch device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50134312A (en) * 1974-04-09 1975-10-24

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50134312A (en) * 1974-04-09 1975-10-24

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009054418A (en) * 2007-08-27 2009-03-12 Tokai Rika Co Ltd Switch device

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