JPS5722584A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS5722584A
JPS5722584A JP9783380A JP9783380A JPS5722584A JP S5722584 A JPS5722584 A JP S5722584A JP 9783380 A JP9783380 A JP 9783380A JP 9783380 A JP9783380 A JP 9783380A JP S5722584 A JPS5722584 A JP S5722584A
Authority
JP
Japan
Prior art keywords
circuit
frequency
metronome
comparator
tuning
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
JP9783380A
Other languages
Japanese (ja)
Inventor
Kazutoshi Ichise
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.)
Ricoh Elemex Corp
Ricoh Co Ltd
Original Assignee
Ricoh Elemex Corp
Ricoh 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 Ricoh Elemex Corp, Ricoh Co Ltd filed Critical Ricoh Elemex Corp
Priority to JP9783380A priority Critical patent/JPS5722584A/en
Publication of JPS5722584A publication Critical patent/JPS5722584A/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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0064—Visual time or date indication means in which functions not related to time can be displayed
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10G—REPRESENTATION OF MUSIC; RECORDING MUSIC IN NOTATION FORM; ACCESSORIES FOR MUSIC OR MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR, e.g. SUPPORTS
    • G10G7/00—Other auxiliary devices or accessories, e.g. conductors' batons or separate holders for resin or strings
    • G10G7/02—Tuning forks or like devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE:To impart an electronic watch functions of tuning, a metronome and the like by indicating results from the comparation, computation or the like between the set frequency and the input frequency with a comparator, an arithmetic circuit and the like. CONSTITUTION:When a push button 3 is operated specified times, the number such as 440Hz is set at a presetting circuit 12 through a switching matrix circuit 13 or the like to turn the reference signal to 440Hz in a comparator circuit 15. The frequency of a sound from a guitar through a microphone is compared with the signal and needle of an analog indication section 5 oscillates to positive or one side through an arithmtic circuit 16 thereby enabling tuning. In response to the operation of the switch 3, the number of tempo is displayed on a digital indication section making the watch function as a metronome.
JP9783380A 1980-07-17 1980-07-17 Electronic watch Pending JPS5722584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9783380A JPS5722584A (en) 1980-07-17 1980-07-17 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9783380A JPS5722584A (en) 1980-07-17 1980-07-17 Electronic watch

Publications (1)

Publication Number Publication Date
JPS5722584A true JPS5722584A (en) 1982-02-05

Family

ID=14202712

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9783380A Pending JPS5722584A (en) 1980-07-17 1980-07-17 Electronic watch

Country Status (1)

Country Link
JP (1) JPS5722584A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2293286A1 (en) * 2009-09-07 2011-03-09 ETA SA Manufacture Horlogère Suisse Watch with integrated chromatic tuner
US9500515B2 (en) 2013-10-21 2016-11-22 Mass Moment LLC Multifunctional wearable audio-sensing electronic device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2293286A1 (en) * 2009-09-07 2011-03-09 ETA SA Manufacture Horlogère Suisse Watch with integrated chromatic tuner
WO2011026798A1 (en) * 2009-09-07 2011-03-10 Eta Sa Manufacture Horlogère Suisse Watch having a built-in chromatic tuner
CN102598116A (en) * 2009-09-07 2012-07-18 Eta瑞士钟表制造股份有限公司 Watch having a built-in chromatic tuner
US8811121B2 (en) 2009-09-07 2014-08-19 Eta Sa Manufacture Horlogere Suisse Watch with an integrated chromatic tuner
US9500515B2 (en) 2013-10-21 2016-11-22 Mass Moment LLC Multifunctional wearable audio-sensing electronic device

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