DK178990A - Kredsloeb med indstillelige aktive og/eller passive komponenter - Google Patents

Kredsloeb med indstillelige aktive og/eller passive komponenter Download PDF

Info

Publication number: DK178990A
Authority: DK; Denmark
Prior art keywords: telephone; adjustable; central store; intermediate stores; volatile
Prior art date: 1988-02-02

Application number

DK178990A

Other languages

English (en)

Other versions

DK178990D0 (da

Inventor

Armin Wurmitzer

Karl Formanek

Original Assignee

Siemens Ag

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.)

1988-02-02

Filing date

1990-07-27

Publication date

1990-07-27

1990-07-27 Application filed by Siemens Ag filed Critical Siemens Ag

1990-07-27 Publication of DK178990A publication Critical patent/DK178990A/da

1990-07-27 Publication of DK178990D0 publication Critical patent/DK178990D0/da

Links

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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Electric hearing aids
- 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Electric hearing aids
- 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)
Semiconductor Lasers (AREA)
Devices For Supply Of Signal Current (AREA)

DK178990A 1988-02-02 1990-07-27 Kredsloeb med indstillelige aktive og/eller passive komponenter DK178990D0 (da)

Applications Claiming Priority (2)

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
PCT/EP1989/000083 WO1989007366A1 (fr)	1988-02-02	1989-02-01	Circuit a composants actifs et/ou passifs reglables

Publications (2)

Publication Number	Publication Date
DK178990A true DK178990A (da)	1990-07-27
DK178990D0 DK178990D0 (da)	1990-07-27

Family

ID=3484329

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK178990A DK178990D0 (da)	1988-02-02	1990-07-27	Kredsloeb med indstillelige aktive og/eller passive komponenter

Country Status (10)

Country	Link
EP (2)	EP0389569B1 (da)
JP (1)	JPH03502993A (da)
AT (2)	AT392556B (da)
CA (1)	CA1298924C (da)
DK (1)	DK178990D0 (da)
ES (1)	ES2027071T3 (da)
GR (1)	GR3003524T3 (da)
PT (1)	PT89594B (da)
WO (1)	WO1989007366A1 (da)
ZA (1)	ZA89816B (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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
US20040179702A1 (en) *	2003-03-11	2004-09-16	Boor Steven E.	Transducer assembly with modifiable buffer circuit and method for adjusting thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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 JP JP1501879A patent/JPH03502993A/ja active Pending
- 1989-02-01 EP EP89902032A patent/EP0389569B1/de not_active Expired - Lifetime
- 1989-02-01 ES ES8989902032T patent/ES2027071T3/es not_active Expired - Lifetime
- 1989-02-01 EP EP89200357A patent/EP0380819A1/de active Pending
- 1989-02-01 WO PCT/EP1989/000083 patent/WO1989007366A1/de not_active Ceased
- 1989-02-01 AT AT89902032T patent/ATE68923T1/de not_active IP Right Cessation
- 1989-02-02 PT PT89594A patent/PT89594B/pt active IP Right Grant
- 1989-02-02 ZA ZA89816A patent/ZA89816B/xx unknown
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
WO1989007366A1 (fr)	1989-08-10
PT89594B (pt)	1994-01-31
JPH03502993A (ja)	1991-07-04
EP0389569B1 (de)	1991-10-23
CA1298924C (en)	1992-04-14
ATE68923T1 (de)	1991-11-15
ES2027071T3 (es)	1992-05-16
EP0380819A1 (de)	1990-08-08
ZA89816B (en)	1990-06-27
ATA20788A (de)	1990-09-15
AT392556B (de)	1991-04-25
DK178990D0 (da)	1990-07-27
PT89594A (pt)	1989-10-04
EP0389569A1 (de)	1990-10-03
GR3003524T3 (da)	1993-03-16

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Legal Events

Date	Code	Title	Description
1990-09-17	AHB	Application shelved due to non-payment
1997-10-20	AHB	Application shelved due to non-payment