PT89594B - Sistema de circuitos com componentes activos ou passivos regulaveis - Google Patents
Sistema de circuitos com componentes activos ou passivos regulaveis Download PDFInfo
- Publication number
- PT89594B PT89594B PT89594A PT8959489A PT89594B PT 89594 B PT89594 B PT 89594B PT 89594 A PT89594 A PT 89594A PT 8959489 A PT8959489 A PT 8959489A PT 89594 B PT89594 B PT 89594B
- Authority
- PT
- Portugal
- Prior art keywords
- telephone
- adjustable
- volatile
- data words
- adjustment values
- Prior art date
Links
- 230000001105 regulatory effect Effects 0.000 title claims description 6
- 238000009434 installation Methods 0.000 claims abstract description 7
- 230000006870 function Effects 0.000 claims abstract description 6
- 230000015654 memory Effects 0.000 claims description 36
- 239000000872 buffer Substances 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract 1
- 210000000056 organ Anatomy 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 7
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
- H03G3/3026—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being discontinuously variable, e.g. controlled by switching
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/001—Digital control of analog signals
-
- 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
- H04M1/6025—Substation equipment, e.g. for use by subscribers including speech amplifiers implemented as integrated speech networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
- H04R25/603—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of mechanical or electronic switches or control elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
- H04R25/609—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of circuitry
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Networks Using Active Elements (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Interface Circuits In Exchanges (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Filters And Equalizers (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Devices For Supply Of Signal Current (AREA)
- Semiconductor Lasers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT207/88A AT392556B (de) | 1988-02-02 | 1988-02-02 | Schaltungsanordnung mit stellbaren verstaerkern und bzw. oder stellbaren widerstaenden |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PT89594A PT89594A (pt) | 1989-10-04 |
| PT89594B true PT89594B (pt) | 1994-01-31 |
Family
ID=3484329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PT89594A PT89594B (pt) | 1988-02-02 | 1989-02-02 | Sistema de circuitos com componentes activos ou passivos regulaveis |
Country Status (10)
| Country | Link |
|---|---|
| EP (2) | EP0389569B1 (show.php) |
| JP (1) | JPH03502993A (show.php) |
| AT (2) | AT392556B (show.php) |
| CA (1) | CA1298924C (show.php) |
| DK (1) | DK178990D0 (show.php) |
| ES (1) | ES2027071T3 (show.php) |
| GR (1) | GR3003524T3 (show.php) |
| PT (1) | PT89594B (show.php) |
| WO (1) | WO1989007366A1 (show.php) |
| ZA (1) | ZA89816B (show.php) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4124585A1 (de) * | 1991-07-24 | 1993-01-28 | Siemens Ag | Steuerbare schaltungsanordnung |
| US5634592A (en) * | 1994-04-07 | 1997-06-03 | Flow-Rite Controls, Ltd. | Flow control apparatus and method for making same |
| WO2004082324A2 (en) * | 2003-03-11 | 2004-09-23 | Knowles Electronics, Llc | Transducer asembly with modifiable buffer circuit and method for adjusting thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2448193B1 (fr) * | 1979-02-01 | 1985-12-06 | Michel Andre | Attenuateur electronique multivoies a reglages memorises et a visualisation par diodes electroluminescentes |
| GB8322440D0 (en) * | 1983-08-19 | 1983-09-21 | Gen Electric Co Plc | Frequency division multiplex transmission equipment |
| AT379929B (de) * | 1984-07-18 | 1986-03-10 | Viennatone Gmbh | Hoergeraet |
| DE3642828C3 (de) * | 1986-02-03 | 1995-05-04 | Toepholm & Westermann | Fernsteuerbares Hörgerät |
-
1988
- 1988-02-02 AT AT207/88A patent/AT392556B/de not_active IP Right Cessation
-
1989
- 1989-01-31 CA CA000589607A patent/CA1298924C/en not_active Expired - Lifetime
- 1989-02-01 ES ES8989902032T patent/ES2027071T3/es not_active Expired - Lifetime
- 1989-02-01 EP EP89902032A patent/EP0389569B1/de not_active Expired - Lifetime
- 1989-02-01 AT AT89902032T patent/ATE68923T1/de not_active IP Right Cessation
- 1989-02-01 JP JP1501879A patent/JPH03502993A/ja active Pending
- 1989-02-01 EP EP89200357A patent/EP0380819A1/de active Pending
- 1989-02-01 WO PCT/EP1989/000083 patent/WO1989007366A1/de not_active Ceased
- 1989-02-02 ZA ZA89816A patent/ZA89816B/xx unknown
- 1989-02-02 PT PT89594A patent/PT89594B/pt active IP Right Grant
-
1990
- 1990-07-27 DK DK178990A patent/DK178990D0/da not_active Application Discontinuation
-
1992
- 1992-01-08 GR GR910401677T patent/GR3003524T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DK178990A (da) | 1990-07-27 |
| ES2027071T3 (es) | 1992-05-16 |
| WO1989007366A1 (fr) | 1989-08-10 |
| CA1298924C (en) | 1992-04-14 |
| ATA20788A (de) | 1990-09-15 |
| EP0380819A1 (de) | 1990-08-08 |
| GR3003524T3 (show.php) | 1993-03-16 |
| PT89594A (pt) | 1989-10-04 |
| EP0389569B1 (de) | 1991-10-23 |
| ATE68923T1 (de) | 1991-11-15 |
| AT392556B (de) | 1991-04-25 |
| ZA89816B (en) | 1990-06-27 |
| DK178990D0 (da) | 1990-07-27 |
| JPH03502993A (ja) | 1991-07-04 |
| EP0389569A1 (de) | 1990-10-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG3A | Patent granted, date of granting |
Effective date: 19930706 |
|
| PC3A | Transfer or assignment |
Free format text: 931006 SIEMENS AKTIENGESELLSCHAFT OSTERREICH AT |