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AR000415A1 - Una disposición de comunicación fm digital de mododual para comunicar una señal durante la operació n en modos de frecuencia modulada y acceso multiple un método de comunicación digital de modo dual que utiliza dicha disposición y un receptor para dicha disposición - Google Patents

Una disposición de comunicación fm digital de mododual para comunicar una señal durante la operació n en modos de frecuencia modulada y acceso multiple un método de comunicación digital de modo dual que utiliza dicha disposición y un receptor para dicha disposición

Info

Publication number
AR000415A1
AR000415A1 AR33474695A AR33474695A AR000415A1 AR 000415 A1 AR000415 A1 AR 000415A1 AR 33474695 A AR33474695 A AR 33474695A AR 33474695 A AR33474695 A AR 33474695A AR 000415 A1 AR000415 A1 AR 000415A1
Authority
AR
Argentina
Prior art keywords
arrangement
multiple access
dual mode
communication
mode
Prior art date
Application number
AR33474695A
Other languages
English (en)
Inventor
Peter J Black
Nathaniel B Wilson
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of AR000415A1 publication Critical patent/AR000415A1/es

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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4904—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using self-synchronising codes, e.g. split-phase codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H04L27/142—Compensating direct current components occurring during the demodulation and which are caused by mistuning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2335—Demodulator circuits; Receiver circuits using non-coherent demodulation using temporal properties of the received signal
    • H04L27/2337—Demodulator circuits; Receiver circuits using non-coherent demodulation using temporal properties of the received signal using digital techniques to measure the time between zero-crossings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70707—Efficiency-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transceivers (AREA)
  • Transmitters (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

La invención se refiere a una disposición de comunicación digital de modo dual para comunicar una senal de información durante la operación en modo defrecuencia modulada (FM) y de acceso múltiple a un método de comunicación digital de mododu al que utiliza dicha disposición y a un receptor. Disposiciónde comunicación digital incluye un transmisor de modo dual 14 para transmitir la senal de información utilizando una senal de comunicación FM durante laoperación en modo FM,y paratransmi tir la senal de información utilizando una senal de comunicación de acceso múltiple durante la operación en modo accesomúltiple. El sistema de comunicación incluye además un receptor de modo dual 16 para recibir la senal de comunicación FMdurante la operación en modo FM, ypara recibir la senal de comunicación de acceso múltiple durante la operación en modo de acceso múltiple. Un demodulador digital 96 se encuentra incorporadodentro del receptor de modo dual 16 para recuperar lasenal de inf ormación de la senal FM recibida durante la operación en modo FM, y para recuperar la senalde información de la senal de acceso múltiple recibida durante la operación en de acceso múltiple.
AR33474695A 1994-12-23 1995-12-21 Una disposición de comunicación fm digital de mododual para comunicar una señal durante la operació n en modos de frecuencia modulada y acceso multiple un método de comunicación digital de modo dual que utiliza dicha disposición y un receptor para dicha disposición AR000415A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37312294A 1994-12-23 1994-12-23

Publications (1)

Publication Number Publication Date
AR000415A1 true AR000415A1 (es) 1997-06-18

Family

ID=23471060

Family Applications (1)

Application Number Title Priority Date Filing Date
AR33474695A AR000415A1 (es) 1994-12-23 1995-12-21 Una disposición de comunicación fm digital de mododual para comunicar una señal durante la operació n en modos de frecuencia modulada y acceso multiple un método de comunicación digital de modo dual que utiliza dicha disposición y un receptor para dicha disposición

Country Status (20)

Country Link
US (1) US5757858A (es)
EP (1) EP0799530B1 (es)
JP (1) JP3436372B2 (es)
KR (1) KR100427836B1 (es)
CN (1) CN1098569C (es)
AR (1) AR000415A1 (es)
AT (1) ATE264025T1 (es)
AU (1) AU700691B2 (es)
BR (1) BR9510534A (es)
CA (1) CA2208081C (es)
DE (1) DE69532863T2 (es)
ES (1) ES2222469T3 (es)
FI (1) FI972590A7 (es)
IL (1) IL116475A (es)
MX (1) MX9704695A (es)
MY (1) MY114286A (es)
RU (1) RU2142205C1 (es)
TW (1) TW294867B (es)
WO (1) WO1996020540A2 (es)
ZA (1) ZA9510509B (es)

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IL116475A0 (en) 1996-03-31
WO1996020540A3 (en) 1996-09-06
AU4599896A (en) 1996-07-19
BR9510534A (pt) 1998-07-14
EP0799530B1 (en) 2004-04-07
WO1996020540A2 (en) 1996-07-04
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ES2222469T3 (es) 2005-02-01
DE69532863D1 (de) 2004-05-13
ZA9510509B (en) 1996-05-30
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IL116475A (en) 1999-10-28
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