JPS5766494A - Device for driving piezoelectric element sound producing unit for portable small size information device - Google Patents

Device for driving piezoelectric element sound producing unit for portable small size information device

Info

Publication number
JPS5766494A
JPS5766494A JP55143169A JP14316980A JPS5766494A JP S5766494 A JPS5766494 A JP S5766494A JP 55143169 A JP55143169 A JP 55143169A JP 14316980 A JP14316980 A JP 14316980A JP S5766494 A JPS5766494 A JP S5766494A
Authority
JP
Japan
Prior art keywords
piezoelectric element
small size
size information
producing unit
sound producing
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
JP55143169A
Other languages
Japanese (ja)
Inventor
Youichi Wakai
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.)
Suwa Seikosha KK
Original Assignee
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 Suwa Seikosha KK filed Critical Suwa Seikosha KK
Priority to JP55143169A priority Critical patent/JPS5766494A/en
Publication of JPS5766494A publication Critical patent/JPS5766494A/en
Pending legal-status Critical Current

Links

Landscapes

  • Circuit For Audible Band Transducer (AREA)
JP55143169A 1980-10-14 1980-10-14 Device for driving piezoelectric element sound producing unit for portable small size information device Pending JPS5766494A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55143169A JPS5766494A (en) 1980-10-14 1980-10-14 Device for driving piezoelectric element sound producing unit for portable small size information device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55143169A JPS5766494A (en) 1980-10-14 1980-10-14 Device for driving piezoelectric element sound producing unit for portable small size information device

Publications (1)

Publication Number Publication Date
JPS5766494A true JPS5766494A (en) 1982-04-22

Family

ID=15332515

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55143169A Pending JPS5766494A (en) 1980-10-14 1980-10-14 Device for driving piezoelectric element sound producing unit for portable small size information device

Country Status (1)

Country Link
JP (1) JPS5766494A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02113800U (en) * 1989-02-28 1990-09-12
JP2008306269A (en) * 2007-06-05 2008-12-18 Yamaha Corp Power amplifying circuit
JP2008306270A (en) * 2007-06-05 2008-12-18 Yamaha Corp Power amplifying circuit
JP2013532442A (en) * 2010-06-14 2013-08-15 ノリス、エルウッド、ジー． Parametric signal processing / radiation system and related methods

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5048957A (en) * 1973-08-31 1975-05-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5048957A (en) * 1973-08-31 1975-05-01

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02113800U (en) * 1989-02-28 1990-09-12
JP2008306269A (en) * 2007-06-05 2008-12-18 Yamaha Corp Power amplifying circuit
JP2008306270A (en) * 2007-06-05 2008-12-18 Yamaha Corp Power amplifying circuit
JP2013532442A (en) * 2010-06-14 2013-08-15 ノリス、エルウッド、ジー． Parametric signal processing / radiation system and related methods

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