FR1603889A - - Google Patents
Info
- Publication number
- FR1603889A FR1603889A FR1603889DA FR1603889A FR 1603889 A FR1603889 A FR 1603889A FR 1603889D A FR1603889D A FR 1603889DA FR 1603889 A FR1603889 A FR 1603889A
- Authority
- FR
- France
- 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
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0072—Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/005—Details of transducers, loudspeakers or microphones using digitally weighted transducing elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/22—Analogue/digital converters pattern-reading type
- H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
- H03M1/26—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with weighted coding, i.e. the weight given to a digit depends on the position of the digit within the block or code word, e.g. there is a given radix and the weights are powers of this radix
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Pressure Sensors (AREA)
- Analogue/Digital Conversion (AREA)
- Measuring Fluid Pressure (AREA)
- Circuit For Audible Band Transducer (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH312968A CH466376A (de) | 1968-03-01 | 1968-03-01 | Anordnung zur Umwandlung von Drücken in digitale elektrische Signale |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1603889A true FR1603889A (fr) | 1971-06-07 |
Family
ID=4249234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1603889D Expired FR1603889A (fr) | 1968-03-01 | 1968-12-30 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3626096A (fr) |
CH (1) | CH466376A (fr) |
DE (1) | DE1910156C3 (fr) |
FR (1) | FR1603889A (fr) |
GB (1) | GB1248088A (fr) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2175611A1 (fr) * | 1972-03-16 | 1973-10-26 | Rybak Boris | |
CH539845A (de) * | 1972-06-30 | 1973-07-31 | Ibm | Elektroakustischer Wandler |
US3958237A (en) * | 1975-03-31 | 1976-05-18 | Gte Laboratories Incorporated | Acoustic to pulse code transducer |
US4395593A (en) * | 1979-11-27 | 1983-07-26 | Bell Telephone Laboratories, Incorporated | Acoustic differential digital coder |
DE3020247C2 (de) * | 1980-05-28 | 1982-09-02 | Franz Vertriebsgesellschaft mbH, 7634 Kippenheim | Verfahren und Anordnung zur Umwandlung von Schallwellen in digitale elektrische Signale mit Hilfe von elektroakustischen Wandlern |
US4515997A (en) * | 1982-09-23 | 1985-05-07 | Stinger Jr Walter E | Direct digital loudspeaker |
US4704556A (en) * | 1983-12-05 | 1987-11-03 | Leslie Kay | Transducers |
DE3642055A1 (de) * | 1986-12-09 | 1988-07-07 | Wolfgang Dr Littmann | Einrichtung zur direkten umwandlung von schall in digitale information - digitales mikrofon |
DE69325732T2 (de) * | 1992-03-18 | 2000-04-27 | Knowles Electronics, Inc. | Festkörper-Kondensatormikrofon |
US5490220A (en) * | 1992-03-18 | 1996-02-06 | Knowles Electronics, Inc. | Solid state condenser and microphone devices |
US5949892A (en) * | 1995-12-07 | 1999-09-07 | Advanced Micro Devices, Inc. | Method of and apparatus for dynamically controlling operating characteristics of a microphone |
US5870482A (en) * | 1997-02-25 | 1999-02-09 | Knowles Electronics, Inc. | Miniature silicon condenser microphone |
JP3377173B2 (ja) * | 1998-02-16 | 2003-02-17 | 松下電器産業株式会社 | ディジタル式電気音響変換器 |
KR20050075659A (ko) | 2004-01-17 | 2005-07-21 | 삼성전자주식회사 | 디지털 출력을 갖는 압력센서, 그 제조방법 및 그 센싱방법 |
DE102009035973B4 (de) * | 2009-08-04 | 2011-07-07 | Baumer Innotec Ag | Anordnung und Verfahren zur kapazitiven Druckmessung |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3236947A (en) * | 1961-12-21 | 1966-02-22 | Ibm | Word code generator |
DE1252258C2 (de) * | 1965-04-13 | 1974-06-20 | Nach dem elektrostatischen prinzip arbeitender elektroakustischer wandler und verfahren zu seiner herstellung |
-
1968
- 1968-03-01 CH CH312968A patent/CH466376A/de unknown
- 1968-12-30 FR FR1603889D patent/FR1603889A/fr not_active Expired
-
1969
- 1969-02-24 US US801384A patent/US3626096A/en not_active Expired - Lifetime
- 1969-02-28 DE DE1910156A patent/DE1910156C3/de not_active Expired
- 1969-02-28 GB GB00803/69A patent/GB1248088A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3626096A (en) | 1971-12-07 |
GB1248088A (en) | 1971-09-29 |
DE1910156C3 (de) | 1979-07-26 |
DE1910156A1 (de) | 1969-10-23 |
CH466376A (de) | 1968-12-15 |
DE1910156B2 (de) | 1978-11-30 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |