NL7509703A - PROCESS OF MANUFACTURING A MICROPHONE OF THE TYPE SPECIFIED AS ELECTRICAL, AND A MICROPHONE MANUFACTURED IN ACCORDANCE WITH SUCH PROCESS. - Google Patents

PROCESS OF MANUFACTURING A MICROPHONE OF THE TYPE SPECIFIED AS ELECTRICAL, AND A MICROPHONE MANUFACTURED IN ACCORDANCE WITH SUCH PROCESS.

Info

Publication number
NL7509703A
NL7509703A NL7509703A NL7509703A NL7509703A NL 7509703 A NL7509703 A NL 7509703A NL 7509703 A NL7509703 A NL 7509703A NL 7509703 A NL7509703 A NL 7509703A NL 7509703 A NL7509703 A NL 7509703A
Authority
NL
Netherlands
Prior art keywords
microphone
electrical
accordance
manufacturing
type specified
Prior art date
Application number
NL7509703A
Other languages
Dutch (nl)
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of NL7509703A publication Critical patent/NL7509703A/en

Links

Classifications

    • 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
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • 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
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • H04R19/016—Electrostatic transducers characterised by the use of electrets for microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
NL7509703A 1974-08-15 1975-08-14 PROCESS OF MANUFACTURING A MICROPHONE OF THE TYPE SPECIFIED AS ELECTRICAL, AND A MICROPHONE MANUFACTURED IN ACCORDANCE WITH SUCH PROCESS. NL7509703A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7410408A SE7410408L (en) 1974-08-15 1974-08-15 PROCEDURE FOR MANUFACTURING AN ELECTRIC MICROPHONE WITH A CAREFULLY DETERMINED AIR GAP.

Publications (1)

Publication Number Publication Date
NL7509703A true NL7509703A (en) 1976-02-17

Family

ID=20321900

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7509703A NL7509703A (en) 1974-08-15 1975-08-14 PROCESS OF MANUFACTURING A MICROPHONE OF THE TYPE SPECIFIED AS ELECTRICAL, AND A MICROPHONE MANUFACTURED IN ACCORDANCE WITH SUCH PROCESS.

Country Status (11)

Country Link
CH (1) CH589994A5 (en)
DE (1) DE2532980C3 (en)
DK (1) DK147670C (en)
ES (1) ES440246A1 (en)
FI (1) FI57680C (en)
FR (1) FR2282195A1 (en)
GB (1) GB1510833A (en)
IT (1) IT1042081B (en)
NL (1) NL7509703A (en)
NO (1) NO136387C (en)
SE (1) SE7410408L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE398588B (en) * 1977-03-23 1977-12-27 Ericsson Telefon Ab L M TEMPERATURE STABLE ELECTRIC MICROPHONE
GB2079055B (en) * 1980-06-30 1985-02-20 Tokyo Shibaura Electric Co Electret device
GB2136207B (en) * 1983-03-07 1987-06-17 Harold Wilson Meredith Pook Manufacture of electrets
DE3927254A1 (en) * 1989-08-18 1991-02-21 Reifenhaeuser Masch METHOD AND SPINNING NOZZLE UNIT FOR THE PRODUCTION OF PLASTIC THREADS AND / OR PLASTIC FIBERS INTO THE PRODUCTION OF A SPINNING FLEECE FROM THERMOPLASTIC PLASTIC

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA832651A (en) * 1970-01-20 Thermo Electron Corporation Electroacoustic transducers and method of making the same
DE844306C (en) * 1948-10-02 1952-07-17 Siemens Ag Condenser microphone with a very small distance between membrane and counter surface
FR1324076A (en) * 1962-05-30 1963-04-12 Accumulatoren Fabrik Ag Accumulator, the electrical energy of which is stored in a dielectric and method for its manufacture
US3373251A (en) * 1965-02-23 1968-03-12 Shure Bros Electrostatic transducer
NL146969B (en) * 1969-11-12 1975-08-15 Tno IMPROVEMENT OF METHOD FOR FORMING A ONE-SIDED METALLIZED ELECTRICAL FOIL.
JPS5115599B1 (en) * 1971-07-28 1976-05-18
SE362571B (en) * 1971-12-02 1973-12-10 Ericsson Telefon Ab L M
NL7210088A (en) * 1972-07-21 1974-01-23

Also Published As

Publication number Publication date
DE2532980C3 (en) 1985-07-11
SE382297B (en) 1976-01-19
FI752120A (en) 1976-02-16
DK147670B (en) 1984-11-05
DK368875A (en) 1976-02-16
FI57680B (en) 1980-05-30
ES440246A1 (en) 1977-03-01
DE2532980A1 (en) 1976-03-04
IT1042081B (en) 1980-01-30
NO136387B (en) 1977-05-16
NO752839L (en) 1976-02-17
DK147670C (en) 1985-05-20
NO136387C (en) 1977-08-31
GB1510833A (en) 1978-05-17
FR2282195B1 (en) 1979-05-11
CH589994A5 (en) 1977-07-29
FR2282195A1 (en) 1976-03-12
DE2532980B2 (en) 1976-08-05
FI57680C (en) 1980-09-10
SE7410408L (en) 1976-01-19

Similar Documents

Publication Publication Date Title
NL7510903A (en) PROCESS FOR MANUFACTURING A SEMI-GUIDE DEVICE, AND DEVICE MANUFACTURED ACCORDING TO THE PROCESS.
NL7701015A (en) PROCESS FOR MANUFACTURING A SEMI- PERMEABEL MEMBRANE, AS WELL AS MEMBRANE MADE IN ACCORDANCE WITH THIS PROCESS.
NL7510160A (en) METHOD OF MANUFACTURING A SEPARATION MEMBRANE AND THE MEMBRANE THEREFORE MANUFACTURED.
NL7504461A (en) METHOD OF MANUFACTURE OF A LENS AND LENS MADE IN ACCORDANCE WITH THIS METHOD.
NL7501775A (en) PROCEDURE FOR MANUFACTURING A MELINED YARN USING COSPIN OBTAINED ELMENTARY WIRES OF THE SHELL-CORE TYPE AND SPINDLE COMPOSITION FOR USE IN THE PROCESS.
NL7402641A (en) MATRIX CONNECTOR AND METHOD FOR MANUFACTURING THE SAME.
NL7503550A (en) SEMICONDUCTOR STRUCTURE WITH SUPERIOR COLLECTOR AND METHOD FOR MANUFACTURING SUCH STRUCTURE.
NL7614535A (en) PROCESS FOR THE MANUFACTURE OF ARTICLES WITH A MICROPATTERY AND THE ARTICLES OBTAINED AS SUCH.
NL161463B (en) PROCESS FOR POLYMERIZING ALKES AND MOLDED OBJECTS.
NL7506519A (en) PROCEDURE FOR MANUFACTURING A VELDEFFEKT TRANSISTOR, AND VELDEFFEKT TRANSISTOR MANUFACTURED ACCORDING TO THIS PROCESS.
NL7612458A (en) METHOD OF MANUFACTURING AN INTERCONNECTOR.
NL7611530A (en) METHOD OF COVERING A COPPER SUBSTRATE, AND COVERING THE COPPER SUBSTRATE IN ACCORDANCE WITH THIS METHOD.
NL7504260A (en) CELL STRUCTURE PLATE AND METHOD FOR MANUFACTURING THIS.
NL7512593A (en) METHOD OF MANUFACTURING AN ELECTRODE.
NL7508657A (en) PHOTOCELL AND METHOD FOR MANUFACTURING THIS.
NL156425B (en) PROCESS FOR THE PREPARATION OF ENTCOPOLYMERS AND FORMED PRODUCTS, WHOLE OR PARTLY CONSISTING OF AN ENTCOPOLYMER, PREPARED IN ACCORDANCE WITH THIS PROCESS.
NL157740B (en) PROCESS FOR THE MANUFACTURE OF A SWITCHING ELEMENT SERVING AS THE KEYBOARD OF AN ELECTRICAL SWITCHING DEVICE AND A KEYBOARD THEREFORE MANUFACTURED.
NL7712057A (en) PROCESS FOR MANUFACTURING AN ELECTROMAGNET AND ELECTROMAGNET MADE IN ACCORDANCE WITH THIS PROCESS.
NL7508514A (en) PROCESS FOR MANUFACTURING A PERFORATED WORKPIECE AND WORKPIECE MADE IN ACCORDANCE WITH THIS PROCESS.
NL7509767A (en) PROCESS FOR THE PREPARATION OF A LEAD ALLOY FOR BATTERY GRILLES, AND A FORMED PRODUCTION, WHOLLY OR PARTIALLY CONSTITUTED OF THIS ALLOY.
NL172920C (en) HEMODIALYSIS MEMBRANE AND METHOD FOR MANUFACTURING THE SAME
NL7508044A (en) SPRING SWITCH AND METHOD FOR MANUFACTURING SUCH SPRING SWITCH.
NL7509703A (en) PROCESS OF MANUFACTURING A MICROPHONE OF THE TYPE SPECIFIED AS ELECTRICAL, AND A MICROPHONE MANUFACTURED IN ACCORDANCE WITH SUCH PROCESS.
NL166638C (en) METHOD AND BENCH FOR MANUFACTURING MOLDED ELEMENTS
NL160888B (en) YARN MADE IN VOLUME AND METHOD FOR MANUFACTURING SUCH YARN.

Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
BV The patent application has lapsed