MX9710357A - Metodo para evaluar el periodo de espera en un descodificador vocal en transmision discontinua, y los correspondientes decodificador vocal y transmisor-receptor para sistemas de comunicacion. - Google Patents

Metodo para evaluar el periodo de espera en un descodificador vocal en transmision discontinua, y los correspondientes decodificador vocal y transmisor-receptor para sistemas de comunicacion.

Info

Publication number
MX9710357A
MX9710357A MX9710357A MX9710357A MX9710357A MX 9710357 A MX9710357 A MX 9710357A MX 9710357 A MX9710357 A MX 9710357A MX 9710357 A MX9710357 A MX 9710357A MX 9710357 A MX9710357 A MX 9710357A
Authority
MX
Mexico
Prior art keywords
period
periods
frame
silence
information
Prior art date
Application number
MX9710357A
Other languages
English (en)
Inventor
Pekka Kapanen
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
Publication of MX9710357A publication Critical patent/MX9710357A/es

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Electric Clocks (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

La invencion se refiere a un método para sincronizacion mutua del codificador vocal del transmisor y del decodificador vocal del receptor en un sistema de comunicacion que utiliza transmision discontinua entre el transmisor y el receptor. La transmision discontinua comprende periodos de bloques secuenciados temporalmente, algunos de cuyos periodos contendrán bloques transmitidos y algunos periodos no contendrán transmision; por lo cual el método contiene etapas para generar periodos de transmision de informacion (200) que comprenden al menos un bloque y que contiene informacion dada por un usuario a dicho dispositivo transmisor, y periodos de silencio (208, 209) que tienen una duracion de al menos el periodo de un bloque y que contiene informacion distinta a la dada por el usuario. La transmision discontinua comprende adicionalmente un periodo (T) que ocurre irregularmente, que comprende entre el periodo de transmision de informacion (200) y el periodo de silencio (208, 209) siguiente al menos un bloque, formando este periodo irregular un periodo de espera para determinar la informacion relativa al periodo de silencio. En el método de acuerdo con la invencion, el numero de periodos de bloques se contabliliza en el receptor hasta un cierto instante; se detecta el comienzo de dicho periodo de silencio (208, 209); y en base a dicho numero contabilizado de periodos de bloques y al comienzo del periodo de silencio (208, 209) se decide si existe o no un periodo de espera (T) de dicho tipo entre dicho perido de transmision de informacion (200) y el periodo de silencio (208) siguientes al periodo de transmision de informacion. (Figura 8).
MX9710357A 1995-06-30 1997-12-18 Metodo para evaluar el periodo de espera en un descodificador vocal en transmision discontinua, y los correspondientes decodificador vocal y transmisor-receptor para sistemas de comunicacion. MX9710357A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI953252A FI105001B (fi) 1995-06-30 1995-06-30 Menetelmä odotusajan selvittämiseksi puhedekooderissa epäjatkuvassa lähetyksessä ja puhedekooderi sekä lähetin-vastaanotin

Publications (1)

Publication Number Publication Date
MX9710357A true MX9710357A (es) 1998-07-31

Family

ID=8543714

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9710357A MX9710357A (es) 1995-06-30 1997-12-18 Metodo para evaluar el periodo de espera en un descodificador vocal en transmision discontinua, y los correspondientes decodificador vocal y transmisor-receptor para sistemas de comunicacion.

Country Status (17)

Country Link
US (1) US5835889A (es)
JP (1) JP3826185B2 (es)
CN (1) CN1135759C (es)
AT (1) AT405346B (es)
AU (1) AU701220B2 (es)
BR (1) BR9608734A (es)
CA (1) CA2222501C (es)
DE (1) DE19617630B4 (es)
ES (1) ES2114820B1 (es)
FI (1) FI105001B (es)
FR (1) FR2736186B1 (es)
GB (1) GB2303034B (es)
IT (1) IT1283133B1 (es)
MX (1) MX9710357A (es)
RU (1) RU2158446C2 (es)
SE (1) SE518907C2 (es)
WO (1) WO1997002561A1 (es)

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Also Published As

Publication number Publication date
CN1135759C (zh) 2004-01-21
ES2114820A1 (es) 1998-06-01
CN1189911A (zh) 1998-08-05
AU701220B2 (en) 1999-01-21
IT1283133B1 (it) 1998-04-07
ATA93596A (de) 1998-11-15
FR2736186B1 (fr) 1999-02-12
JP3826185B2 (ja) 2006-09-27
SE518907C2 (sv) 2002-12-03
AU6226096A (en) 1997-02-05
WO1997002561A1 (en) 1997-01-23
BR9608734A (pt) 1999-07-06
GB9612833D0 (en) 1996-08-21
ITMI961200A0 (es) 1996-06-12
FR2736186A1 (fr) 1997-01-03
GB2303034B (en) 2000-01-26
FI105001B (fi) 2000-05-15
ES2114820B1 (es) 1999-01-16
GB2303034A (en) 1997-02-05
FI953252A0 (fi) 1995-06-30
JPH11514168A (ja) 1999-11-30
DE19617630A1 (de) 1997-01-02
DE19617630B4 (de) 2005-12-08
CA2222501C (en) 2002-04-23
ITMI961200A1 (it) 1997-12-12
FI953252A (fi) 1996-12-31
RU2158446C2 (ru) 2000-10-27
AT405346B (de) 1999-07-26
SE9602230L (sv) 1996-12-31
CA2222501A1 (en) 1997-01-23
US5835889A (en) 1998-11-10
SE9602230D0 (sv) 1996-06-05

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