FI914884A - Cmos-kompander - Google Patents

Cmos-kompander Download PDF

Info

Publication number
FI914884A
FI914884A FI914884A FI914884A FI914884A FI 914884 A FI914884 A FI 914884A FI 914884 A FI914884 A FI 914884A FI 914884 A FI914884 A FI 914884A FI 914884 A FI914884 A FI 914884A
Authority
FI
Finland
Prior art keywords
compander
cmos
Prior art date
Application number
FI914884A
Other languages
English (en)
Other versions
FI914884A0 (fi
FI90166C (fi
FI90166B (fi
Inventor
Jouni Poeloenen
Mika Groenroos
Kim Kaltiokallio
Original Assignee
Nokia Mobile Phones Ltd
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 Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Priority to FI914884A priority Critical patent/FI90166C/fi
Publication of FI914884A0 publication Critical patent/FI914884A0/fi
Priority to EP92309253A priority patent/EP0537959B1/en
Priority to DE69214083T priority patent/DE69214083T2/de
Priority to US07/960,960 priority patent/US5293139A/en
Priority to JP27869692A priority patent/JP3313783B2/ja
Publication of FI914884A publication Critical patent/FI914884A/fi
Application granted granted Critical
Publication of FI90166B publication Critical patent/FI90166B/fi
Publication of FI90166C publication Critical patent/FI90166C/fi

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • H03G7/005—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers using discontinuously variable devices, e.g. switch-operated

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Amplifiers (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Control Of Amplification And Gain Control (AREA)
FI914884A 1991-10-16 1991-10-16 Cmos-kompander FI90166C (fi)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI914884A FI90166C (fi) 1991-10-16 1991-10-16 Cmos-kompander
EP92309253A EP0537959B1 (en) 1991-10-16 1992-10-12 CMOS-Compander
DE69214083T DE69214083T2 (de) 1991-10-16 1992-10-12 CMOS-Kompander
US07/960,960 US5293139A (en) 1991-10-16 1992-10-13 CMOS-compander
JP27869692A JP3313783B2 (ja) 1991-10-16 1992-10-16 Ｃｍｏｓ圧伸器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI914884 1991-10-16
FI914884A FI90166C (fi) 1991-10-16 1991-10-16 Cmos-kompander

Publications (4)

Publication Number Publication Date
FI914884A0 FI914884A0 (fi) 1991-10-16
FI914884A true FI914884A (fi) 1993-04-17
FI90166B FI90166B (fi) 1993-09-15
FI90166C FI90166C (fi) 1993-12-27

Family

ID=8533306

Family Applications (1)

Application Number Title Priority Date Filing Date
FI914884A FI90166C (fi) 1991-10-16 1991-10-16 Cmos-kompander

Country Status (5)

Country Link
US (1) US5293139A (fi)
EP (1) EP0537959B1 (fi)
JP (1) JP3313783B2 (fi)
DE (1) DE69214083T2 (fi)
FI (1) FI90166C (fi)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3229051B2 (ja) * 1993-01-29 2001-11-12 株式会社東芝 アナログコンパンダ回路
JP3217557B2 (ja) * 1993-10-01 2001-10-09 株式会社東芝 電圧利得制御回路
GB2330961B (en) 1997-11-04 2002-04-24 Nokia Mobile Phones Ltd Automatic Gain Control
FI116505B (fi) 1998-03-23 2005-11-30 Nokia Corp Menetelmä ja järjestelmä suunnatun äänen käsittelemiseksi akustisessa virtuaaliympäristössä
US7616052B1 (en) * 2003-03-04 2009-11-10 National Semicondcutor Corporation Fast adapting filter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2181184A6 (fi) * 1972-04-20 1973-11-30 Erap Elf Entr Rech Activ Petro
NL7901477A (nl) * 1979-02-26 1980-08-28 Philips Nv Geluidsweergave in een ruimte met een onafhankelijke geluidsbron.
DE58909157D1 (de) * 1988-10-13 1995-05-11 Siemens Ag Integrierter Kompressionsverstärker mit programmierbarer Schwellspannung.

Also Published As

Publication number Publication date
EP0537959A3 (en) 1993-06-23
FI914884A0 (fi) 1991-10-16
JP3313783B2 (ja) 2002-08-12
US5293139A (en) 1994-03-08
FI90166C (fi) 1993-12-27
DE69214083D1 (de) 1996-10-31
DE69214083T2 (de) 1997-02-27
EP0537959A2 (en) 1993-04-21
FI90166B (fi) 1993-09-15
EP0537959B1 (en) 1996-09-25
JPH05259785A (ja) 1993-10-08

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Legal Events

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BB Publication of examined application
MA Patent expired