GB1324187A - Mechanico-electric transducer utilizing piezoresistance effect - Google Patents

Mechanico-electric transducer utilizing piezoresistance effect

Info

Publication number
GB1324187A
GB1324187A GB4420070A GB4420070A GB1324187A GB 1324187 A GB1324187 A GB 1324187A GB 4420070 A GB4420070 A GB 4420070A GB 4420070 A GB4420070 A GB 4420070A GB 1324187 A GB1324187 A GB 1324187A
Authority
GB
United Kingdom
Prior art keywords
vacuum deposited
electric transducer
mechanico
sept
selenium
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.)
Expired
Application number
GB4420070A
Other languages
English (en)
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.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Publication of GB1324187A publication Critical patent/GB1324187A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Pressure Sensors (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
GB4420070A 1969-09-22 1970-09-16 Mechanico-electric transducer utilizing piezoresistance effect Expired GB1324187A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7469069A JPS5438491B1 (cg-RX-API-DMAC7.html) 1969-09-22 1969-09-22

Publications (1)

Publication Number Publication Date
GB1324187A true GB1324187A (en) 1973-07-18

Family

ID=13554449

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4420070A Expired GB1324187A (en) 1969-09-22 1970-09-16 Mechanico-electric transducer utilizing piezoresistance effect

Country Status (3)

Country Link
US (1) US3624430A (cg-RX-API-DMAC7.html)
JP (1) JPS5438491B1 (cg-RX-API-DMAC7.html)
GB (1) GB1324187A (cg-RX-API-DMAC7.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145284A (en) * 1983-08-18 1985-03-20 Transamerica Delaval Inc Processes for applying a semiconductor material to a substrate

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8705774B2 (en) * 2009-01-14 2014-04-22 Hewlett-Packard Development Company, L.P. Acoustic pressure transducer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2912353A (en) * 1956-01-03 1959-11-10 Itt Selenium rectifier
US2974203A (en) * 1958-04-29 1961-03-07 Bell Telephone Labor Inc Ceramic electromechanical transducers
US3547596A (en) * 1967-10-12 1970-12-15 Bell Telephone Labor Inc Method for producing substantially trigonal piezoelectric selenium
US3486046A (en) * 1968-10-17 1969-12-23 Westinghouse Electric Corp Thin film piezoelectric resonator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145284A (en) * 1983-08-18 1985-03-20 Transamerica Delaval Inc Processes for applying a semiconductor material to a substrate

Also Published As

Publication number Publication date
US3624430A (en) 1971-11-30
JPS5438491B1 (cg-RX-API-DMAC7.html) 1979-11-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years