Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO1991007038) METHOD AND APPARATUS FOR EFFECTING EFFICIENT TRANSMISSION OF DATA
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/007038 International Application No.: PCT/US1990/005787
Publication Date: 16.05.1991 International Filing Date: 10.10.1990
Chapter 2 Demand Filed: 03.06.1991
IPC:
H04L 1/00 (2006.01) ,H04L 1/18 (2006.01) ,H04L 29/06 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1
Arrangements for detecting or preventing errors in the information received
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1
Arrangements for detecting or preventing errors in the information received
12
by using return channel
16
in which the return channel carries supervisory signals, e.g. repetition request signals
18
Automatic repetition systems, e.g. van Duuren system
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29
Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02
Communication control; Communication processing
06
characterised by a protocol
Applicants:
MICROCOM SYSTEMS, INC. [US/US]; 500 River Ridge Drive Norwood, MA 02062-5028, US
Inventors:
PEARSON, Gregory; US
MELHORN, Nathan, Richmond; US
ONARATO, Michael, Francis; US
RICHARDS, Craig, Allen; US
Agent:
KUSMER, Toby, H.; Gaston & Snow One Federal Street Boston, MA 02110-2099, US
Priority Data:
431,59503.11.1989US
Title (EN) METHOD AND APPARATUS FOR EFFECTING EFFICIENT TRANSMISSION OF DATA
(FR) PROCEDE ET APPAREIL EFFECTUANT DES TRANSMISSIONS EFFICACES DE DONNEES
Abstract:
(EN) A data communications system and method is provided for sending a data stream of characters in distinct data packets between two units of data terminal equipment connected over communications lines. A modem is connected between each unit of data terminal equipment and the communications lines, and one initializing modem includes a means for changing the packet size of the data which is transmitted. Depending on the response of the receiving modem on whether errors are detected, the size of the data packets is dynamically adjusted. If an error is detected, the data packet size is decreased, and if no error is detected, then the data packet size is increased. If there is no data packet to send, then an idle packet is sent. If the idle packet is received without error, then the packet size of the data packets is increased. If, however, there is an error in the idle packet received, then the size of the data packet will be decreased.
(FR) Système et procédé de communications de données permettant d'envoyer un flux de données de caractères dans des paquets de données distincts entre deux unités d'équipement terminal de traitement de données connectées par des lignes de communications. Un modem est connecté entre chaque unité d'équipement terminal de traitement de données et les lignes de communications, et un modem d'initialisation comprend un moyen permettant de changer la taille des paquets de données, transmis. Selon la réponse du modem de réception déterminant si des erreurs sont détectées, on ajuste dynamiquement la taille des paquets de données. Si l'on détecte une erreur, on diminue la taille du paquet de données, et si l'on ne détecte pas d'erreur, on augmente la taille du paquet de données. S'il n'y a aucun paquet de données à envoyer, on envoie un paquet vide. Si le paquet vide est reçu sans erreur, alors on augmente la taille des paquets de données. Toutefois, s'il y a une erreur dans le paquet vide reçu, alors on diminue la taille du paquet de données.
Designated States: AU, CA, JP
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1990067218