GB1036837A - Improvements in or relating to electromechanical transducers - Google Patents

Improvements in or relating to electromechanical transducers

Info

Publication number
GB1036837A
GB1036837A GB15677/65A GB1567765A GB1036837A GB 1036837 A GB1036837 A GB 1036837A GB 15677/65 A GB15677/65 A GB 15677/65A GB 1567765 A GB1567765 A GB 1567765A GB 1036837 A GB1036837 A GB 1036837A
Authority
GB
United Kingdom
Prior art keywords
type silicon
layer
field effect
slice
ring
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
GB15677/65A
Other languages
English (en)
Inventor
Cyril Francis Drake
Michael Lawrence Gayford
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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
Priority to DENDAT1252258D priority Critical patent/DE1252258C2/de
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB15677/65A priority patent/GB1036837A/en
Priority to US524794A priority patent/US3445596A/en
Priority to NL6604883A priority patent/NL6604883A/xx
Priority to FR57377A priority patent/FR1476944A/fr
Priority to CH535266A priority patent/CH442430A/de
Publication of GB1036837A publication Critical patent/GB1036837A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H03F3/185—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only with field-effect devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/04—Microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/006—Transducers other than those covered by groups H04R9/00 - H04R21/00 using solid state devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Junction Field-Effect Transistors (AREA)
GB15677/65A 1965-04-13 1965-04-13 Improvements in or relating to electromechanical transducers Expired GB1036837A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DENDAT1252258D DE1252258C2 (de) 1965-04-13 Nach dem elektrostatischen prinzip arbeitender elektroakustischer wandler und verfahren zu seiner herstellung
GB15677/65A GB1036837A (en) 1965-04-13 1965-04-13 Improvements in or relating to electromechanical transducers
US524794A US3445596A (en) 1965-04-13 1966-02-03 Capacitor microphone employing a field effect semiconductor
NL6604883A NL6604883A (enExample) 1965-04-13 1966-04-12
FR57377A FR1476944A (fr) 1965-04-13 1966-04-13 Perfectionnements aux transducteurs électromécaniques
CH535266A CH442430A (de) 1965-04-13 1966-04-13 Elektromechanischer Wandler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15677/65A GB1036837A (en) 1965-04-13 1965-04-13 Improvements in or relating to electromechanical transducers

Publications (1)

Publication Number Publication Date
GB1036837A true GB1036837A (en) 1966-07-20

Family

ID=10063438

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15677/65A Expired GB1036837A (en) 1965-04-13 1965-04-13 Improvements in or relating to electromechanical transducers

Country Status (5)

Country Link
US (1) US3445596A (enExample)
CH (1) CH442430A (enExample)
DE (1) DE1252258C2 (enExample)
GB (1) GB1036837A (enExample)
NL (1) NL6604883A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5137928U (enExample) * 1974-09-14 1976-03-22

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3624315A (en) * 1967-01-23 1971-11-30 Max E Broce Transducer apparatus and transducer amplifier system utilizing insulated gate semiconductor field effect devices
US3609252A (en) * 1967-01-23 1971-09-28 Texas Instruments Inc Transducer apparatus and system utilizing insulated gate semiconductor field effect devices
CH466376A (de) * 1968-03-01 1968-12-15 Ibm Anordnung zur Umwandlung von Drücken in digitale elektrische Signale
US3634727A (en) * 1968-12-03 1972-01-11 Bendix Corp Capacitance-type pressure transducer
JPS5221046Y2 (enExample) * 1971-08-31 1977-05-14
US3920930A (en) * 1974-04-08 1975-11-18 John James Sobczyk Field effect recordings and semiconductor playback devices
JPS5516228A (en) * 1978-07-21 1980-02-04 Hitachi Ltd Capacity type sensor
CA1107382A (en) * 1978-11-03 1981-08-18 Beverley W. Gumb Electret microphone with simplified electrical connections by printed circuit board mounting
JPS55110924A (en) * 1979-02-20 1980-08-27 Murata Mfg Co Ltd Integrated construction type vibration detecter
US4812888A (en) * 1984-11-11 1989-03-14 Cornell Research Foundation, Inc. Suspended gate field effect semiconductor pressure transducer device
US10153740B2 (en) 2016-07-11 2018-12-11 Knowles Electronics, Llc Split signal differential MEMS microphone
EP3855129B1 (en) 2017-03-22 2023-10-25 Knowles Electronics, LLC Interface circuit for a capacitive sensor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754431A (en) * 1953-03-09 1956-07-10 Rca Corp Semiconductor devices
US3108162A (en) * 1960-04-11 1963-10-22 Schindler Mark Capacitor acousto-electric transducer and method of making the same
US3016752A (en) * 1960-11-16 1962-01-16 Eugene C Huebschmann Transistor type accelerometer
US3300585A (en) * 1963-09-04 1967-01-24 Northern Electric Co Self-polarized electrostatic microphone-semiconductor amplifier combination
US3274462A (en) * 1963-11-13 1966-09-20 Jr Keats A Pullen Structural configuration for fieldeffect and junction transistors
DE1197510B (de) * 1963-12-14 1965-07-29 Siemens Ag Elektroakustischer Wandler auf Halbleiterbasis

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5137928U (enExample) * 1974-09-14 1976-03-22

Also Published As

Publication number Publication date
NL6604883A (enExample) 1966-10-14
CH442430A (de) 1967-08-31
DE1252258C2 (de) 1974-06-20
DE1252258B (de) 1967-10-19
US3445596A (en) 1969-05-20

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