ES2027071T3 - Circuito con componentes activos y/o pasivos ajustables. - Google Patents

Circuito con componentes activos y/o pasivos ajustables.

Info

Publication number
ES2027071T3
ES2027071T3 ES8989902032T ES89902032T ES2027071T3 ES 2027071 T3 ES2027071 T3 ES 2027071T3 ES 8989902032 T ES8989902032 T ES 8989902032T ES 89902032 T ES89902032 T ES 89902032T ES 2027071 T3 ES2027071 T3 ES 2027071T3
Authority
ES
Spain
Prior art keywords
telephone
adjustable
central store
intermediate stores
volatile
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.)
Expired - Lifetime
Application number
ES8989902032T
Other languages
English (en)
Spanish (es)
Inventor
Armin Wurtmitzer
Karl Formanek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG Oesterreich
Siemens Corp
Original Assignee
Siemens AG Oesterreich
Siemens Corp
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.)
Filing date
Publication date
Application filed by Siemens AG Oesterreich, Siemens Corp filed Critical Siemens AG Oesterreich
Application granted granted Critical
Publication of ES2027071T3 publication Critical patent/ES2027071T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G3/00Gain control in amplifiers or frequency changers
    • H03G3/20Automatic control
    • H03G3/30Automatic control in amplifiers having semiconductor devices
    • H03G3/3005Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/3026Automatic 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
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G3/00Gain control in amplifiers or frequency changers
    • H03G3/001Digital control of analog signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/60Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6025Substation equipment, e.g. for use by subscribers including speech amplifiers implemented as integrated speech networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/60Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
    • H04R25/603Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of mechanical or electronic switches or control elements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/60Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
    • H04R25/609Mounting 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)
ES8989902032T 1988-02-02 1989-02-01 Circuito con componentes activos y/o pasivos ajustables. Expired - Lifetime ES2027071T3 (es)

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 (1)

Publication Number Publication Date
ES2027071T3 true ES2027071T3 (es) 1992-05-16

Family

ID=3484329

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8989902032T Expired - Lifetime ES2027071T3 (es) 1988-02-02 1989-02-01 Circuito con componentes activos y/o pasivos ajustables.

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)

* 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
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)

* 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

Also Published As

Publication number Publication date
DK178990A (da) 1990-07-27
PT89594B (pt) 1994-01-31
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

Similar Documents

Publication Publication Date Title
SE8202318L (sv) Krets mellan abonnentlinjer och forbindelseledningar
US4631359A (en) Arrangement for supplying current to a subscriber telephone set
EP0063672B1 (en) Telephone music device
ES2027071T3 (es) Circuito con componentes activos y/o pasivos ajustables.
ATE59510T1 (de) Schaltungsanordnung zur seriellen datenuebertragung zwischen mehreren teilnehmerstellen.
JPS6135669A (ja) 音楽保留装置
US3691311A (en) Telephone user set
US3731012A (en) Current limiting and resistance monitoring circuit
US4345117A (en) Telephone line feed circuit
SE8205342L (sv) Metod och anordning vid strommatning av en abonnentapparat fran en telefonvexel
CA1178353A (en) Remote supply circuit for an analog two-wire connection
JPS6223950B2 (show.php)
TW255085B (show.php)
KR100343343B1 (ko) 호출음신호발생방법및장치
GB1290869A (show.php)
CA1116767A (en) Electronic bridge circuit for supplying dc power and tone signals to subscriber line
WO1999026348A3 (en) Subscriber line interface circuit
KR950004048Y1 (ko) 마이콤의 볼륨 콘트롤 전압 제어회로
CA2065635A1 (en) Transistor direct-coupled amplifier
ES2150958T3 (es) Disposicion de circuito de conexiones para la alimentacion de terminales digitales de comunicaciones.
AU8216187A (en) Telephone circuit
GB2119207A (en) Computer input/output circuit
JPS6481411A (en) Differential circuit
JPS5459014A (en) Talking device
JPS63219000A (ja) 音声発生装置

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 389569

Country of ref document: ES