HK50882A - Electronic buzzer - Google Patents

Electronic buzzer

Info

Publication number
HK50882A
HK50882A HK508/82A HK50882A HK50882A HK 50882 A HK50882 A HK 50882A HK 508/82 A HK508/82 A HK 508/82A HK 50882 A HK50882 A HK 50882A HK 50882 A HK50882 A HK 50882A
Authority
HK
Hong Kong
Prior art keywords
vibrating
air spring
resonant frequencies
plate
plates
Prior art date
Application number
HK508/82A
Other languages
English (en)
Original Assignee
Seiko Instr & Electronics
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 Instr & Electronics filed Critical Seiko Instr & Electronics
Publication of HK50882A publication Critical patent/HK50882A/xx

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00—Producing acoustic time signals by electrical means
    • G04C21/02—Constructional details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/08—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers separated by air or other fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Electromechanical Clocks (AREA)
  • Glass Compositions (AREA)
HK508/82A 1976-07-13 1982-11-25 Electronic buzzer HK50882A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8331776A JPS538594A (en) 1976-07-13 1976-07-13 Electronic buzzer

Publications (1)

Publication Number Publication Date
HK50882A true HK50882A (en) 1982-12-03

Family

ID=13799036

Family Applications (1)

Application Number Title Priority Date Filing Date
HK508/82A HK50882A (en) 1976-07-13 1982-11-25 Electronic buzzer

Country Status (6)

Country Link
US (1) US4159472A (cs)
JP (1) JPS538594A (cs)
CH (1) CH629067B (cs)
GB (1) GB1568112A (cs)
HK (1) HK50882A (cs)
SG (1) SG44082G (cs)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5493391A (en) * 1977-12-30 1979-07-24 Seiko Instr & Electronics Ltd Small sized audio unit
US4251807A (en) * 1979-03-08 1981-02-17 Pickering & Company Miniature buzzer
JPS5665012A (en) * 1979-11-02 1981-06-02 Kanegafuchi Chem Ind Co Ltd Production of soft resin
DE3138068A1 (de) * 1980-11-10 1982-07-08 Marukokeihouki Co. Ltd., Nagano Piezoelektrische mehrfrequenz-schallerzeugungsvorrichtung
JPS60134700A (ja) * 1983-12-23 1985-07-17 Nippon Denso Co Ltd 発音装置
KR900003594B1 (ko) * 1985-01-07 1990-05-26 니홍덴소 가부시기 가이샤 경보음 발생장치
US5990797A (en) * 1997-03-04 1999-11-23 Bkk Brands, Inc. Ultraloud smoke detector
FR2777095A1 (fr) * 1998-04-02 1999-10-08 Christophe Claret Sa Montre sonore
DE102008011302A1 (de) * 2008-02-27 2009-09-10 Siemens Aktiengesellschaft Flächenlautsprecher
EP2461220B1 (fr) * 2010-12-02 2019-11-06 Montres Breguet SA Membrane de rayonnement acoustique pour une boîte à musique ou une montre à sonnerie
EP2461219B1 (fr) * 2010-12-02 2020-10-14 Montres Breguet SA Membrane de rayonnement acoustique pour une boîte à musique ou une montre à sonnerie
EP3009894B1 (fr) * 2014-10-15 2017-11-29 Montres Breguet SA Agencement à membranes de rayonnement acoustique pour une montre à sonnerie

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1773605A (en) * 1927-05-18 1930-08-19 Sefton Wilfred Loud-speaker
GB440041A (en) * 1934-06-19 1935-12-19 Robert Rodger Glen Improvements in or relating to loud-speakers and the like
US2903673A (en) * 1954-01-06 1959-09-08 Harris Transducer Corp Acoustical impedance-matching transducer
US3074504A (en) * 1961-05-25 1963-01-22 Liberty Mfg Corp Loud-speaker

Also Published As

Publication number Publication date
JPS5736598B2 (cs) 1982-08-04
CH629067B (fr)
GB1568112A (en) 1980-05-29
CH629067GA3 (cs) 1982-04-15
SG44082G (en) 1983-02-25
US4159472A (en) 1979-06-26
JPS538594A (en) 1978-01-26

Similar Documents

Publication Publication Date Title
JPS5736598B2 (cs)
GB1359624A (en) Electric alarm watch
FR2363853B1 (cs)
GB1357403A (en) Electroacoustic transducer
FR2336721A1 (fr) Transducteur electro-acoustique, notamment pour chronometres electroniques
CH636494GA3 (cs)
GB1432884A (en) Acoustical sound producer for timepieces
DK164950C (da) Aktiveringskobling for piezoelektriske lydgivere
CH634455B (fr) Montre comportant un vibreur electro-acoustique.
JPS5765092A (en) Microphone in common use with speaker
SU1137502A1 (ru) Учебный прибор по физике
GB2008814B (en) Electronic timepiece
GB1246551A (en) Alarm wrist-watch
JPS55134379A (en) Electronic wrist watch with alarm
JPS5440589A (en) Crystal vibrator of tuning fork type
GB1525818A (en) Alarm generating apparatus
GB1088741A (en) A device for emitting and receiving ultra-sonic vibrations
JPS5536762A (en) Electronic alarm clock
JPS57101784A (en) Wrist watch with alarm
JPS54123067A (en) Electroacoustic converter for electronic watch water- proof type
ES469981A1 (es) Un dispositivo para generar calor dielectrico en hojas delgadas, en particular para la soldadura o sellado de material de embalaje.
JPS5312322A (en) Electroacoustic transducer
JPS5316620A (en) Electroacoustic transducer
JPS57166717A (en) Piezoelectric bimorph oscillator
JPS5752884A (en) Electronic clock with built-in speaker