ES2057736T3 - Un metodo y un dispositivo para tratar una señal analogica. - Google Patents

Un metodo y un dispositivo para tratar una señal analogica.

Info

Publication number
ES2057736T3
ES2057736T3 ES91201285T ES91201285T ES2057736T3 ES 2057736 T3 ES2057736 T3 ES 2057736T3 ES 91201285 T ES91201285 T ES 91201285T ES 91201285 T ES91201285 T ES 91201285T ES 2057736 T3 ES2057736 T3 ES 2057736T3
Authority
ES
Spain
Prior art keywords
signal
amplitude
processing
variation
reference voltage
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
ES91201285T
Other languages
English (en)
Inventor
Paul Wilkinson Dent
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.)
Ericsson Inc
Original Assignee
Ericsson GE Mobile Communications Inc
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 Ericsson GE Mobile Communications Inc filed Critical Ericsson GE Mobile Communications Inc
Application granted granted Critical
Publication of ES2057736T3 publication Critical patent/ES2057736T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
    • H04B1/64—Volume compression or expansion arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/02—Delta modulation, i.e. one-bit differential modulation
    • H03M3/022—Delta modulation, i.e. one-bit differential modulation with adaptable step size, e.g. adaptive delta modulation [ADM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

LA INVENCION SE REFIERE A UN METODO Y DISPOSITIVO PARA PROCESAR UNA SEÑAL DE ENTRADA ANALOGA (S) QUE VARIA MUCHO EN AMPLITUD, TAL COMO UN DISCURSO, CON EL PROPOSITO DE REDUCIR EL NIVEL DE VARIACIONES DE AMPLITUD DE MAXIMO A MINIMO DE UNA SEÑAL DE SALIDA (P), DESPUES DEL PROCESAMIENTO, A LA RAIZ CUADRADA DEL NIVEL EXISTENTE ANTES DEL PROCESAMIENTO EN ORDEN A TRANSMITIR MEJOR DICHA SEÑAL A TRAVES DE UN CANAL DE ESCALA DINAMICA RESTRINGIDA EN LA PRESENCIA DE RUIDO AÑADIDO. EL DISPOSITIVO COMPRENDE UN CONVERSOR DE ANALOGO-A-DIGITAL (2) MONTADO PARA CAMBIAR LA SEÑAL DE ENTRADA (S) A UNA CORRIENTE DE NUMEROS ENTEROS (N1, N2, N3 ...). LOS NUMEROS EN LA CORRIENTE REPRESENTAN EN ALGUNA MANERA PROPORCIONAL EL VALOR INSTANTANEO DE LA SEÑAL DE ENTRADA (S) DIVIDIDO POR UNA TENSION DE REFERENCIA (R). ESTA TENSION DE REFERENCIA (R) SE GENERA POR UN DISPOSITIVO DE AMPLITUD SUAVIZADO (4) EN PROPORCION A LA AMPLITUD DE LA SEÑAL DE SALIDA (P) QUE SE PRODUCE, CUANDO LA CORRIENTE DE NUMEROS SE RECONVIERTE A UNAFORMA DE ONDAS DE SEÑAL ANALOGA POR MEDIO DE UN CONVERSOR DE ANALOGO-A-DIGITAL (6) QUE TRABAJA CON UNA TENSION DE REFERENCIA CONSTANTE. LA INVENCION TAMBIEN SE REFIERE A UN DISPOSITIVO Y METODO PARA PROCESAR UNA SEÑAL DE VARIACION DE AMPLITUD COMPRIMIDA, TAL COMO LA QUE SE PUEDE PRODUCIR POR EL METODO Y DISPOSITIVO DESCRITO ARRIBA, EN ORDEN A PRODUCIR UNA SEÑAL DE VARIACION DE AMPLITUD VUELTA A LA ESCALA NORMAL, SIENDO EL CUADRADO DE LA ESCALA COMPRIMIDA.
ES91201285T 1990-06-26 1991-05-28 Un metodo y un dispositivo para tratar una señal analogica. Expired - Lifetime ES2057736T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9002254A SE465144B (sv) 1990-06-26 1990-06-26 Saett och anordning foer behandling av en analog signal
SG171894A SG171894G (en) 1990-06-26 1994-12-03 A method and device for processing an analog signal

Publications (1)

Publication Number Publication Date
ES2057736T3 true ES2057736T3 (es) 1994-10-16

Family

ID=26660807

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91201285T Expired - Lifetime ES2057736T3 (es) 1990-06-26 1991-05-28 Un metodo y un dispositivo para tratar una señal analogica.

Country Status (17)

Country Link
US (1) US5276764A (es)
EP (1) EP0463656B1 (es)
JP (1) JPH0750535A (es)
CN (1) CN1028826C (es)
AU (1) AU647797B2 (es)
CA (1) CA2044817C (es)
DE (1) DE69103346T2 (es)
DK (1) DK0463656T3 (es)
ES (1) ES2057736T3 (es)
FI (1) FI105621B (es)
HK (1) HK9595A (es)
IE (1) IE66907B1 (es)
NO (1) NO176740C (es)
NZ (1) NZ238314A (es)
PT (1) PT98103B (es)
SE (1) SE465144B (es)
SG (1) SG171894G (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE173866T1 (de) * 1992-07-31 1998-12-15 Aphex Systems Ltd Anordnung zur anhebung der bassfrequenz eines audiosignals
KR0170259B1 (ko) * 1993-07-26 1999-03-30 김광호 신호처리방법 및 장치
US5796359A (en) * 1995-10-25 1998-08-18 Norand Corporation Data conversion and processing system
GB9601885D0 (en) * 1996-01-31 1996-04-03 Wolfson Ltd Compandors
US6269338B1 (en) * 1996-10-10 2001-07-31 U.S. Philips Corporation Data compression and expansion of an audio signal
ES2292066T3 (es) * 1996-11-07 2008-03-01 Koninkl Philips Electronics Nv Transmision de una señal de flujo de bits.
US6148086A (en) * 1997-05-16 2000-11-14 Aureal Semiconductor, Inc. Method and apparatus for replacing a voice with an original lead singer's voice on a karaoke machine
US7489790B2 (en) * 2000-12-05 2009-02-10 Ami Semiconductor, Inc. Digital automatic gain control
US6452524B1 (en) 2001-02-08 2002-09-17 Ericsson Inc. Delta sigma converter incorporating a multiplier
SG114498A1 (en) * 2001-08-31 2005-09-28 Univ Nanyang Method and apparatus for generating directional sound using an ultrasonic carrier wave
SG113393A1 (en) * 2001-08-31 2005-08-29 Univ Nanyang Method and apparatus for enhancing the sound quality of an ultrasonic loudspeaker system
US20040062362A1 (en) * 2002-09-18 2004-04-01 Yasuyuki Matsuya Data communication method, data transmitting apparatus, data receiving apparatus, and data transmission program
GB0414420D0 (en) * 2004-06-28 2004-07-28 Cambridge Silicon Radio Ltd Speech activity detection
US7685493B2 (en) * 2006-09-29 2010-03-23 Agere Systems Inc. Buffer compression in automatic retransmission request (ARQ) systems
CN106248125B (zh) * 2016-08-30 2019-02-05 浙江西子富沃德电机有限公司 一种带信号质量自检测功能的正余弦光电编码器
US10531099B2 (en) * 2016-09-30 2020-01-07 The Mitre Corporation Systems and methods for distributed quantization of multimodal images

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2967992A (en) * 1954-06-15 1961-01-10 Philips Corp Signal expansion device
DE1912218A1 (de) * 1968-05-17 1969-10-02 Ames Automobielbedrijf N V Schlafstelle fuer Automobile
US3949299A (en) * 1974-11-05 1976-04-06 North Electric Company Signal coding for telephone communication system
SU919098A1 (ru) * 1980-01-10 1982-04-07 Предприятие П/Я Г-4488 Устройство сжати динамического диапазона речевых сигналов
JPS57146297A (en) * 1981-03-04 1982-09-09 Nippon Electric Co Voice processor
US4493091A (en) * 1982-05-05 1985-01-08 Dolby Laboratories Licensing Corporation Analog and digital signal apparatus
JPS6046139A (ja) * 1983-08-24 1985-03-12 Nippon Telegr & Teleph Corp <Ntt> コンパンダ回路
GB8804811D0 (en) * 1988-03-01 1988-03-30 Shaye Communications Ltd Waveform encoder/decoder
US5079550A (en) * 1989-10-27 1992-01-07 Crystal Semiconductor Corporation Combining continuous time and discrete time signal processing in a delta-sigma modulator
US5124703A (en) * 1990-04-05 1992-06-23 Matsushita Electric Industrial Co., Ltd. Digital signal requantizing circuit using multistage noise shaping

Also Published As

Publication number Publication date
NO912483D0 (no) 1991-06-25
NZ238314A (en) 1993-09-27
HK9595A (en) 1995-01-27
JPH0750535A (ja) 1995-02-21
DE69103346T2 (de) 1995-02-16
EP0463656B1 (en) 1994-08-10
IE66907B1 (en) 1996-02-07
IE912097A1 (en) 1992-01-01
FI913099A (fi) 1991-12-27
AU647797B2 (en) 1994-03-31
SG171894G (en) 1995-06-16
US5276764A (en) 1994-01-04
CA2044817C (en) 2000-03-07
NO176740B (no) 1995-02-06
CN1028826C (zh) 1995-06-07
DK0463656T3 (da) 1994-10-03
CA2044817A1 (en) 1991-12-27
SE465144B (sv) 1991-07-29
PT98103B (pt) 1999-02-26
EP0463656A1 (en) 1992-01-02
FI105621B (fi) 2000-09-15
CN1057742A (zh) 1992-01-08
AU7924991A (en) 1992-01-02
NO176740C (no) 1995-05-16
DE69103346D1 (de) 1994-09-15
NO912483L (no) 1991-12-27
FI913099A0 (fi) 1991-06-25
SE9002254D0 (sv) 1990-06-26
PT98103A (pt) 1993-08-31

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