CA2000434A1 - Amplificateur-compresseur integre a tension de seuil programmable - Google Patents

Amplificateur-compresseur integre a tension de seuil programmable

Info

Publication number
CA2000434A1
CA2000434A1 CA2000434A CA2000434A CA2000434A1 CA 2000434 A1 CA2000434 A1 CA 2000434A1 CA 2000434 A CA2000434 A CA 2000434A CA 2000434 A CA2000434 A CA 2000434A CA 2000434 A1 CA2000434 A1 CA 2000434A1
Authority
CA
Canada
Prior art keywords
amplifier
threshold voltage
output
integrated
compression
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.)
Granted
Application number
CA2000434A
Other languages
English (en)
Other versions
CA2000434C (fr
Inventor
Manfred Mauthe
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
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.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of CA2000434A1 publication Critical patent/CA2000434A1/fr
Application granted granted Critical
Publication of CA2000434C publication Critical patent/CA2000434C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices
    • H03G7/08—Volume compression or expansion in amplifiers having semiconductor devices incorporating negative feedback
    • 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
    • H04R25/35—Electric hearing aids using translation techniques
    • H04R25/356—Amplitude, e.g. amplitude shift or compression

Landscapes

  • Amplifiers (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Control Of Amplification And Gain Control (AREA)
CA002000434A 1988-10-13 1989-10-11 Amplificateur-compresseur integre a tension de seuil programmable Expired - Fee Related CA2000434C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3834928 1988-10-13
DEP3834928.0 1988-10-13

Publications (2)

Publication Number Publication Date
CA2000434A1 true CA2000434A1 (fr) 1990-04-13
CA2000434C CA2000434C (fr) 1993-12-07

Family

ID=6365067

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002000434A Expired - Fee Related CA2000434C (fr) 1988-10-13 1989-10-11 Amplificateur-compresseur integre a tension de seuil programmable

Country Status (6)

Country Link
US (1) US4987383A (fr)
EP (1) EP0363714B1 (fr)
JP (1) JPH02149111A (fr)
AT (1) ATE120903T1 (fr)
CA (1) CA2000434C (fr)
DE (1) DE58909157D1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI90166C (fi) * 1991-10-16 1993-12-27 Nokia Mobile Phones Ltd Cmos-kompander
DE4444899C1 (de) * 1994-12-16 1996-01-25 Philips Patentverwaltung Schaltungsanordnung zur amplitudenabhängigen Bedämpfung eines Fernsehsignals
US5841812A (en) * 1995-09-06 1998-11-24 Analog Devices, Inc. NMOS pass transistor digital signal processor for a PRML system
US5838807A (en) * 1995-10-19 1998-11-17 Mitel Semiconductor, Inc. Trimmable variable compression amplifier for hearing aid
DE19630416C1 (de) 1996-07-26 1997-10-23 Sgs Thomson Microelectronics SC-Filter mit intrinsischer Anti-Aliasing-Funktion sowie damit ausgerüsteter Audiosignalprocessor
DE29615554U1 (de) * 1996-09-06 1998-01-08 Türk + Türk Electronic GmbH, 51469 Bergisch Gladbach Hörgerät und Steuergerät zur Programmierung des Hörgerätes
DE19740692A1 (de) * 1997-09-16 1999-03-04 Siemens Audiologische Technik Hörgerät mit AGC-Verstärkerelement mit großem Dynamikbereich
US20050116768A1 (en) * 2000-01-21 2005-06-02 Jens Sauerbrey Amplifier or filter circuit in switched capacitor circuit logic and method for amplifying or filtering signals
US7216033B2 (en) 2003-03-31 2007-05-08 Deere & Company Path planner and method for planning a contour path of a vehicle
TWI275243B (en) * 2005-09-14 2007-03-01 Princeton Technology Corp Voltage controlled amplifier for a signal processing system
TWI356582B (en) * 2008-07-31 2012-01-11 Ralink Technology Corp Method for calibrating a power amplifier and devic
WO2013077932A1 (fr) 2011-11-23 2013-05-30 Ag Phonak Prothese auditive cic
CN111193476B (zh) * 2020-02-27 2022-10-14 广州慧智微电子股份有限公司 一种放大器及放大方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719895A (en) * 1971-03-11 1973-03-06 Northern Electric Co Automatic gain control circuit
US3919654A (en) * 1974-08-14 1975-11-11 Bell Telephone Labor Inc Syllabic compandor
US4539440A (en) * 1983-05-16 1985-09-03 Michael Sciarra In-canal hearing aid

Also Published As

Publication number Publication date
EP0363714A3 (en) 1990-10-10
JPH02149111A (ja) 1990-06-07
US4987383A (en) 1991-01-22
EP0363714B1 (fr) 1995-04-05
DE58909157D1 (de) 1995-05-11
EP0363714A2 (fr) 1990-04-18
CA2000434C (fr) 1993-12-07
ATE120903T1 (de) 1995-04-15

Similar Documents

Publication Publication Date Title
CA2000434A1 (fr) Amplificateur-compresseur integre a tension de seuil programmable
GB2301964B (en) Method and apparatus for amplifying a signal
EP0332367A3 (fr) Amplificateur à réglage automatique du gain à gamme de proportionalité étendue
JPS5744338A (en) Noise reduction device
EP0138260A3 (fr) Amplificateur commandé
JPH01261008A (ja) 線形増幅兼検波回路装置
AU2960389A (en) Video noise reduction circuit
DE3878826D1 (de) Schaltungsanordnung mit einem an einen opto-elektrischen wandler angeschlossenen vorverstaerker.
MY109336A (en) Using d-c feedback with on-chip filtering to balance i-f drive to second detector in monolithic ic
US7411438B2 (en) Low-power integrated-circuit signal processor with wide dynamic range
JPS5564412A (en) Frequency characteristic regulator
JPS6468009A (en) Active filter type signal adjusting circuit
TW326543B (en) Amplifying circuit for dynamic focus
EP0921635A4 (fr) Dispositif amplificateur de puissance
EP0813296A3 (fr) Dispositifs amplificateurs à facteur d'amortissement élevé
JPS5738008A (en) Output amplifier
EP0106408A3 (en) Circuit arrangement for sound volume control
US3242436A (en) Audio volume compressor circuit in an amplifier circuit
US3683290A (en) Automatic volume control through preamplifier supply voltages
KR900005213B1 (ko) 비디오 카메라의 과대 광량 압축회로
JPS57141107A (en) Wide-band negative feedback amplifying circuit
SU1149382A1 (ru) Усилительное устройство
CA2065635A1 (fr) Amplificateur a transistors a couplage direct
JPS54100644A (en) Automatic gain control system
JPS56117413A (en) Digital agc system

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed