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1. WO2000041354 - ACTIVATION OF MULTIPLE xDSL MODEMS WITH HALF DUPLEX AND FULL DUPLEX PROCEDURES

Publication Number WO/2000/041354
Publication Date 13.07.2000
International Application No. PCT/US1999/030006
International Filing Date 29.12.1999
IPC
H04L 5/14 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
14Two-way operation using the same type of signal, i.e. duplex
H04M 11/06 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
11Telephonic communication systems specially adapted for combination with other electrical systems
06Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
CPC
H04L 5/1438
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
14Two-way operation using the same type of signal, i.e. duplex
1438Negotiation of transmission parameters prior to communication
H04M 11/06
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
11Telephonic communication systems adapted for combination with other electrical systems
06Simultaneous speech and telegraphic or other data transmission over the same conductors
H04M 11/062
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
11Telephonic communication systems adapted for combination with other electrical systems
06Simultaneous speech and telegraphic or other data transmission over the same conductors
062using different frequency bands for speech and other data
Applicants
  • MATSUSHITA GRAPHIC COMMUNICATION SYSTEMS, INC. [JP/JP]; 2-3-8, Shimomeguro Meguro-ku, Tokyo 153, JP (AllExceptUS)
  • PALM, Stephen [US/JP]; JP (UsOnly)
Inventors
  • PALM, Stephen; JP
Agents
  • PAPERNER, Leslie, J.; Greenblum & Bernstein, P.L.C. 1941 Roland Clarke Place Reston, VA 20191, US
Priority Data
60/115,29408.01.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ACTIVATION OF MULTIPLE xDSL MODEMS WITH HALF DUPLEX AND FULL DUPLEX PROCEDURES
(FR) ACTIVATION DE MULTIPLES MODEMS xDSL AU MOYEN DE PROCEDURES SEMI-DUPLEX ET DUPLEX INTEGRAL
Abstract
(EN)
Method and apparatus for enabling data communication that detects and notifies the opposite terminal of which type of duplexing (e.g., full duplex or half duplex) is used. The capabilities of the communication devices are exchanged between a central location (1) and a remote location (4). Based upon the quality of the communication channel (5), and the capabilities of the communication channel, an appropriate communication standard is selected.
(FR)
L'invention concerne un procédé et un appareil qui permettent une communication de données pouvant détecter et informer le terminal opposé du type de duplexage (duplex intégral ou semi-duplex, par exemple) utilisé. Les ressources des dispositifs de communication sont échangées entre un site central (1) et un site éloigné (4). En fonction de la qualité et des ressources de la voie de communication (5), une norme de communication appropriée est choisie.
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