JPS61242499A - マイクロホン装置 - Google Patents
マイクロホン装置Info
- Publication number
- JPS61242499A JPS61242499A JP60148468A JP14846885A JPS61242499A JP S61242499 A JPS61242499 A JP S61242499A JP 60148468 A JP60148468 A JP 60148468A JP 14846885 A JP14846885 A JP 14846885A JP S61242499 A JPS61242499 A JP S61242499A
- Authority
- JP
- Japan
- Prior art keywords
- microphone
- signal
- threshold
- gating
- generating
- 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.)
- Pending
Links
- 230000004044 response Effects 0.000 claims description 24
- 230000003044 adaptive effect Effects 0.000 claims description 10
- 230000007423 decrease Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims 14
- 230000002401 inhibitory effect Effects 0.000 claims 3
- 230000010255 response to auditory stimulus Effects 0.000 claims 3
- 238000007599 discharging Methods 0.000 claims 2
- 239000004020 conductor Substances 0.000 description 70
- 239000003990 capacitor Substances 0.000 description 37
- 238000000034 method Methods 0.000 description 23
- 230000006870 function Effects 0.000 description 20
- 230000035945 sensitivity Effects 0.000 description 13
- 230000002238 attenuated effect Effects 0.000 description 6
- 230000005669 field effect Effects 0.000 description 6
- 238000003491 array Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 230000005764 inhibitory process Effects 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 5
- 239000000872 buffer Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000005236 sound signal Effects 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000002592 echocardiography Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 230000035943 smell Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000002747 voluntary 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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US72530285A | 1985-04-19 | 1985-04-19 | |
| US725302 | 2003-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61242499A true JPS61242499A (ja) | 1986-10-28 |
Family
ID=24913986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60148468A Pending JPS61242499A (ja) | 1985-04-19 | 1985-07-08 | マイクロホン装置 |
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) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0271948A3 (en) * | 1986-12-16 | 1989-05-03 | Alcatel N.V. | Telecommunication circuit |
| DE3734447C1 (de) * | 1987-10-12 | 1989-05-18 | Telefonbau & Normalzeit Gmbh | Konferenz-Freisprecheinrichtung |
| EP0516220B1 (en) * | 1991-05-29 | 1998-03-11 | Koninklijke Philips Electronics N.V. | Electroacoustic amplifier arrangement and microphone arrangement to be used in the electroacoustic amplifier arrangement |
| 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 |
|---|---|---|---|---|
| JPS4933601A (enrdf_load_stackoverflow) * | 1972-07-24 | 1974-03-28 | ||
| JPS5977710A (ja) * | 1982-10-02 | 1984-05-04 | Fujitsu Ltd | マイクロホン増巾回路 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3751602A (en) * | 1971-08-13 | 1973-08-07 | Bell Telephone Labor Inc | Loudspeaking telephone |
| US4008376A (en) * | 1975-10-17 | 1977-02-15 | Bell Telephone Laboratories, Incorporated | Loudspeaking teleconferencing circuit |
| US4090032A (en) * | 1976-05-05 | 1978-05-16 | Wm. A. Holmin Corporation | Control system for audio amplifying system having multiple microphones |
| 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 |
-
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 |
|---|---|---|---|---|
| JPS4933601A (enrdf_load_stackoverflow) * | 1972-07-24 | 1974-03-28 | ||
| JPS5977710A (ja) * | 1982-10-02 | 1984-05-04 | Fujitsu Ltd | マイクロホン増巾回路 |
Also Published As
| Publication number | Publication date |
|---|---|
| AT389202B (de) | 1989-11-10 |
| NL8600996A (nl) | 1986-11-17 |
| FR2580882B1 (fr) | 1993-12-10 |
| NL193041B (nl) | 1998-04-01 |
| ATA103086A (de) | 1988-11-15 |
| CA1256036A (en) | 1989-06-20 |
| CA1263608C (enrdf_load_stackoverflow) | 1989-12-05 |
| GB2174268B (en) | 1989-12-06 |
| GB2174268A (en) | 1986-10-29 |
| AT388480B (de) | 1989-06-26 |
| ATA172888A (de) | 1989-03-15 |
| FR2580882A1 (fr) | 1986-10-24 |
| GB8606874D0 (en) | 1986-04-23 |
| DE3612708A1 (de) | 1986-10-23 |
| NL193041C (nl) | 1998-08-04 |
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