JPS54101369A - Watch with noise meter - Google Patents

Watch with noise meter

Info

Publication number
JPS54101369A
JPS54101369A JP807378A JP807378A JPS54101369A JP S54101369 A JPS54101369 A JP S54101369A JP 807378 A JP807378 A JP 807378A JP 807378 A JP807378 A JP 807378A JP S54101369 A JPS54101369 A JP S54101369A
Authority
JP
Japan
Prior art keywords
noise
square
wristwatch
meter
indicator
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
JP807378A
Other languages
Japanese (ja)
Inventor
Shinichi Sueki
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP807378A priority Critical patent/JPS54101369A/en
Publication of JPS54101369A publication Critical patent/JPS54101369A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G21/00—Input or output devices integrated in time-pieces
    • G04G21/02—Detectors of external physical values, e.g. temperature

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To enable the users to detect his own ambient noise levels by incorporating a noise meter into the wristwatch. CONSTITUTION:A noise meter 41 thru 43 comprising a noise receiving sensor 1 consisting of a non-directional microphone or the like, a preamplifier 2, an attenuator 3, a weighting network 4, a main amplifier 5, a square-law detection circuit 6 and an indicator 7 is incorporated into the wristwatch. Then, the noise in the watch user's ambient is received in the receiving sensor 1. After amplification and attenuation, only the frequency components correspnding to hearing sensation sensitivity are inputted to the square-law detection circuit 6, where the square root of square means is taken and is displayed in the indicator 7, thus the noise is displayed in the time display part and noise level display part 42 when a switch button 43 is operated. In the case of an electronic wristwatch provided with an alarm function, the buzzer of the alarm mechanism may be utilized as the sensor of the noise meter.
JP807378A 1978-01-27 1978-01-27 Watch with noise meter Pending JPS54101369A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP807378A JPS54101369A (en) 1978-01-27 1978-01-27 Watch with noise meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP807378A JPS54101369A (en) 1978-01-27 1978-01-27 Watch with noise meter

Publications (1)

Publication Number Publication Date
JPS54101369A true JPS54101369A (en) 1979-08-09

Family

ID=11683157

Family Applications (1)

Application Number Title Priority Date Filing Date
JP807378A Pending JPS54101369A (en) 1978-01-27 1978-01-27 Watch with noise meter

Country Status (1)

Country Link
JP (1) JPS54101369A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57187624A (en) * 1981-05-15 1982-11-18 Akebono Brake Ind Co Ltd Brake noise meter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57187624A (en) * 1981-05-15 1982-11-18 Akebono Brake Ind Co Ltd Brake noise meter

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