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1. WO2005062477 - METHOD, APPARATUS AND SYSTEMS FOR DIGITAL RADIO COMMUNICATION SYSTEMS

Publication Number WO/2005/062477
Publication Date 07.07.2005
International Application No. PCT/US2004/037851
International Filing Date 12.11.2004
IPC
H04B 1/40 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
38Transceivers, 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
40Circuits
CPC
H04B 1/0003
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details 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
0003Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
H04B 1/40
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details 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
38Transceivers, 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
40Circuits
Applicants
  • MAXIM INTEGRATED PRODUCTS, INC. [US]/[US] (AllExceptUS)
  • DROGI, Serge, Francois [FR]/[US] (UsOnly)
  • DROPMANN, Hans [DE]/[US] (UsOnly)
  • VINAYAK, Vikas [IN]/[US] (UsOnly)
  • PIRIY APOKSOMBUT, Pramote (UsOnly)
  • OLSEN, Gordon (UsOnly)
  • KING, Joel (UsOnly)
Inventors
  • DROGI, Serge, Francois
  • DROPMANN, Hans
  • VINAYAK, Vikas
  • PIRIY APOKSOMBUT, Pramote
  • OLSEN, Gordon
  • KING, Joel
Agents
  • BLAKELY, Roger, W., Jr.
Priority Data
10/727,23002.12.2003US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD, APPARATUS AND SYSTEMS FOR DIGITAL RADIO COMMUNICATION SYSTEMS
(FR) PROCEDE, APPAREIL ET SYSTEMES POUR SYSTEMES DE RADIOCOMMUNICATION NUMERIQUE
Abstract
(EN)
A radio system includes a radio frequency (RF) integrated circuit (IC) and a baseband digital signal processing (DSP) IC. A serial digital interface couples data between the RF IC and the DSP IC to provide a high data rate and low noise. In one embodiment, the RF IC has a single bit sigma delta modulator to convert an analog signal into a serial digital bit stream, and a differential output driver to drive the serial digital bit stream as a differential data signal. In one embodiment, the DSP IC has a differential input receiver to receive the differential data signal and generate the serial digital bit stream therein, a decimator to lower the data rate of the serial digital bit stream and convert it into parallel digital data samples, and a demodulator to digitally demodulate the parallel digital data samples into data words for digital signal processing.
(FR)
Un système radio comprend un circuit intégré à radiofréquence (RF) et un CI de traitement de signal numérique dans la bande de base (DSP). Une interface numérique série couple des données entre le CI RF et le CI DSP afin de produire un débit de données élevée et un faible bruit. Dans un mode de réalisation, le CI RF comprend un modulateur delta sigma à un seul bit conçu pour convertir un signal analogique en un train de bits numérique série, et un excitateur de sortie différentielle conçu pour exciter le train de bits numérique série sous forme de signal données différentiel. Dans un mode de réalisation, le CI DSP possède un récepteur d'entrée différentielle conçu pour recevoir le signal de données différentiel et pour générer le train de bits numérique série, un décimateur pour abaisser le débit de données du train de bits numérique série et le convertir en échantillons de données numériques parallèles, et un démodulateur conçu pour moduler numériquement les échantillons de données en mots de données pour le traitement numérique des signaux.
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