DE3612708A1 - Mikrofonsystem - Google Patents
MikrofonsystemInfo
- Publication number
- DE3612708A1 DE3612708A1 DE19863612708 DE3612708A DE3612708A1 DE 3612708 A1 DE3612708 A1 DE 3612708A1 DE 19863612708 DE19863612708 DE 19863612708 DE 3612708 A DE3612708 A DE 3612708A DE 3612708 A1 DE3612708 A1 DE 3612708A1
- Authority
- DE
- Germany
- Prior art keywords
- signal
- microphone
- threshold
- microphones
- loudspeaker
- 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.)
- Ceased
Links
- 230000001629 suppression Effects 0.000 claims description 44
- 230000035945 sensitivity Effects 0.000 claims description 14
- 230000003321 amplification Effects 0.000 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 4
- 241000723353 Chrysanthemum Species 0.000 claims description 2
- 235000005633 Chrysanthemum balsamita Nutrition 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims 8
- 238000012806 monitoring device Methods 0.000 claims 3
- 238000007599 discharging Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 239000004020 conductor Substances 0.000 description 66
- 239000003990 capacitor Substances 0.000 description 39
- 238000011330 nucleic acid test Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 13
- 230000008901 benefit Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 230000008859 change Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000005236 sound signal Effects 0.000 description 6
- 230000002238 attenuated effect Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000009966 trimming Methods 0.000 description 5
- 239000000872 buffer Substances 0.000 description 4
- 238000013016 damping Methods 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000005669 field effect Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000000747 cardiac effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000005357 Hall field Effects 0.000 description 1
- 206010039740 Screaming Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 239000012636 effector Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
- H04M3/568—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants
- H04M3/569—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants using the instant speaker's algorithm
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
-
- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/326—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
- H04R2201/401—2D or 3D arrays of transducers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Circuit For Audible Band Transducer (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US72530285A | 1985-04-19 | 1985-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3612708A1 true DE3612708A1 (de) | 1986-10-23 |
Family
ID=24913986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19863612708 Ceased DE3612708A1 (de) | 1985-04-19 | 1986-04-16 | Mikrofonsystem |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS61242499A (enrdf_load_stackoverflow) |
| AT (2) | AT388480B (enrdf_load_stackoverflow) |
| CA (1) | CA1256036A (enrdf_load_stackoverflow) |
| DE (1) | DE3612708A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2580882B1 (enrdf_load_stackoverflow) |
| GB (1) | GB2174268B (enrdf_load_stackoverflow) |
| NL (1) | NL193041C (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3734447C1 (de) * | 1987-10-12 | 1989-05-18 | Telefonbau & Normalzeit Gmbh | Konferenz-Freisprecheinrichtung |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0271948A3 (en) * | 1986-12-16 | 1989-05-03 | Alcatel N.V. | Telecommunication circuit |
| DE69224680T2 (de) * | 1991-05-29 | 1998-09-17 | Koninkl Philips Electronics Nv | Elektroakustische Verstärker-Anordnung und Mikrofonanordnung zur Verwendung in der elektroakustischen Verstärker-Anordnung |
| KR100233166B1 (ko) * | 1997-07-04 | 1999-12-01 | 윤종용 | 다수의 마이크들을 구비하는 핸드 프리 장치 및 그 제어 방법 |
| US11039260B2 (en) | 2019-09-19 | 2021-06-15 | Jerry Mirsky | Communication system for controlling the sequence and duration of speeches at public debates |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3751602A (en) * | 1971-08-13 | 1973-08-07 | Bell Telephone Labor Inc | Loudspeaking telephone |
| US4090032A (en) * | 1976-05-05 | 1978-05-16 | Wm. A. Holmin Corporation | Control system for audio amplifying system having multiple microphones |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4933601A (enrdf_load_stackoverflow) * | 1972-07-24 | 1974-03-28 | ||
| US4008376A (en) * | 1975-10-17 | 1977-02-15 | Bell Telephone Laboratories, Incorporated | Loudspeaking teleconferencing circuit |
| CA1050154A (en) * | 1977-01-14 | 1979-03-06 | Conrad D. Lafrance | Telephone conferencing apparatus |
| FR2390864A1 (fr) * | 1977-05-09 | 1978-12-08 | France Etat | Systeme d'audioconference par liaison telephonique |
| US4359602A (en) * | 1979-01-17 | 1982-11-16 | Ponto Robert A | Multiple input audio program system |
| US4449238A (en) * | 1982-03-25 | 1984-05-15 | Bell Telephone Laboratories, Incorporated | Voice-actuated switching system |
| JPS5977710A (ja) * | 1982-10-02 | 1984-05-04 | Fujitsu Ltd | マイクロホン増巾回路 |
-
1985
- 1985-07-08 JP JP60148468A patent/JPS61242499A/ja active Pending
-
1986
- 1986-03-20 GB GB8606874A patent/GB2174268B/en not_active Expired
- 1986-03-24 CA CA000504842A patent/CA1256036A/en not_active Expired
- 1986-04-16 DE DE19863612708 patent/DE3612708A1/de not_active Ceased
- 1986-04-18 AT AT0103086A patent/AT388480B/de not_active IP Right Cessation
- 1986-04-18 FR FR8605620A patent/FR2580882B1/fr not_active Expired - Lifetime
- 1986-04-18 NL NL8600996A patent/NL193041C/nl not_active IP Right Cessation
-
1988
- 1988-07-04 AT AT0172888A patent/AT389202B/de not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3751602A (en) * | 1971-08-13 | 1973-08-07 | Bell Telephone Labor Inc | Loudspeaking telephone |
| US4090032A (en) * | 1976-05-05 | 1978-05-16 | Wm. A. Holmin Corporation | Control system for audio amplifying system having multiple microphones |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3734447C1 (de) * | 1987-10-12 | 1989-05-18 | Telefonbau & Normalzeit Gmbh | Konferenz-Freisprecheinrichtung |
Also Published As
| Publication number | Publication date |
|---|---|
| NL193041B (nl) | 1998-04-01 |
| FR2580882A1 (fr) | 1986-10-24 |
| FR2580882B1 (fr) | 1993-12-10 |
| GB2174268A (en) | 1986-10-29 |
| AT389202B (de) | 1989-11-10 |
| AT388480B (de) | 1989-06-26 |
| ATA172888A (de) | 1989-03-15 |
| GB8606874D0 (en) | 1986-04-23 |
| CA1256036A (en) | 1989-06-20 |
| CA1263608C (enrdf_load_stackoverflow) | 1989-12-05 |
| ATA103086A (de) | 1988-11-15 |
| NL8600996A (nl) | 1986-11-17 |
| GB2174268B (en) | 1989-12-06 |
| NL193041C (nl) | 1998-08-04 |
| JPS61242499A (ja) | 1986-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2646924C3 (de) | Fernsprech-Konferenzanlage | |
| DE3325815C2 (enrdf_load_stackoverflow) | ||
| DE69527731T2 (de) | Sender-Empfänger mit einem akustischen Wandler vom Ohrpassstück-Typ | |
| DE69637203T2 (de) | Mikrofonauswahlverfahren zur Anwendung in einem sprachgesteuerten Mehrmikrofonvermittlungssystem | |
| US4658425A (en) | Microphone actuation control system suitable for teleconference systems | |
| DE2259290A1 (de) | Hoergeraet | |
| EP0942627A2 (de) | Hörgerät mit einem Richtmikrofon-System sowie Verfahren zum Betrieb desselben | |
| DE2526034B2 (de) | Hoerhilfeverfahren und vorrichtung zur durchfuehrung des verfahrens | |
| DE10359198A1 (de) | System und Verfahren mit Lauthörtelefon | |
| EP1499160A2 (de) | Richthörhilfegerät | |
| DE2313247A1 (de) | Schaltungsanordnung fuer einen fernsprechapparat mit sprachgesteuerter freisprecheinrichtung | |
| DE60004863T2 (de) | EINE METHODE ZUR REGELUNG DER RICHTWIRKUNG DER SCHALLEMPFANGSCHARAkTERISTIK EINES HÖRGERÄTES UND EIN HÖRGERÄT ZUR AUSFÜHRUNG DER METHODE | |
| DE3406899C2 (enrdf_load_stackoverflow) | ||
| DE3243818C2 (enrdf_load_stackoverflow) | ||
| DE4445877A1 (de) | Verfahren und Anordnung zur Echokompensation | |
| DE2628259C3 (de) | Gegensprechanlage | |
| DE3612708A1 (de) | Mikrofonsystem | |
| DE69224680T2 (de) | Elektroakustische Verstärker-Anordnung und Mikrofonanordnung zur Verwendung in der elektroakustischen Verstärker-Anordnung | |
| DE102020117299A1 (de) | Mikrofonarray, Konferenzsystem mit Mikrofonarray und Verfahren zur Steuerung eines Mikrofonarrays | |
| DE3606973A1 (de) | Schaltungsanordnung fuer ein freisprechtelefon | |
| DE3629596A1 (de) | Schaltungsanordnung zur entkopplung der uebertragungszweige einer freisprecheinrichtung | |
| DE2163126C3 (de) | Verstärkeranordnung für einen Telefonapparat | |
| EP0311754B1 (de) | Konferenz-Freisprecheinrichtung | |
| DE3822353C2 (enrdf_load_stackoverflow) | ||
| DE1487227A1 (de) | Zweikanal-Verstaerker fuer elektroakustische Systeme |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8131 | Rejection |