FR2799094A1 - Wire less Internet information exchange communications having portable computer with modem and radio card antenna transmitting base unit and analogue signals telephone plug/transmission network passing. - Google Patents
Wire less Internet information exchange communications having portable computer with modem and radio card antenna transmitting base unit and analogue signals telephone plug/transmission network passing. Download PDFInfo
- Publication number
- FR2799094A1 FR2799094A1 FR0011033A FR0011033A FR2799094A1 FR 2799094 A1 FR2799094 A1 FR 2799094A1 FR 0011033 A FR0011033 A FR 0011033A FR 0011033 A FR0011033 A FR 0011033A FR 2799094 A1 FR2799094 A1 FR 2799094A1
- Authority
- FR
- France
- Prior art keywords
- modem
- transmission network
- portable computer
- wireless communication
- communication system
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Communication Control (AREA)
Abstract
Description
La présente invention concerne d'une manière générale la transmission de données entre des ordinateurs portatifs tels que des ordinateurs portables ou des ordinateurs blocs-notes et un réseau de transmission de données tel qu'un réseau local ou Internet, et concerne en particulier un système de communication sans fil entre un ordinateur portatif un réseau de transmission de données disposant d'une prise téléphonique comme entrée. The present invention relates generally to the transmission of data between portable computers such as laptops or notebook computers and a data transmission network such as a local area network or the Internet, and relates in particular to a system. wireless communication between a laptop computer a data transmission network with a telephone jack as input.
Les ordinateurs portatifs tels que les ordinateurs portables et les ordinateurs blocs-notes permettent de travailler pendant environ trois heures sans aucune connexion grâce à une batterie alimentation. Mais il y a un problème lorsque l'utilisateur désire etre connecté à un réseau local tel qu'un réseau Intranet ou à l'Internet. L'utilisateur perd alors sa mobilité car l'appareil doit être physiquement relié à une prise de réseau local (Token Ring, Ethernet, etc.) ou, s'il connecte au moyen d'un modem, celui-ci doit être branché sur la prise téléphonique normale du bureau. Laptops such as laptops and notebooks can work for about three hours without any connection thanks to a battery power supply. But there is a problem when the user wants to be connected to a local network such as an intranet or the Internet. The user then loses his mobility because the device must be physically connected to a local network socket (Token Ring, Ethernet, etc.) or, if he connects by means of a modem, this must be connected to the normal office telephone outlet.
Il existe des solutions à ce problème. Ainsi, il est possible de se connecter à un téléphone GSM avec un modem PCMCIA. Mais la vitesse de communication est limitée à 9600 bauds et le cout d'une communication est élevé par rapport à une communication téléphonique normale. autre solution consiste à connecter l'ordinateur bloc-notes au moyen d'un canal infrarouge avec un système entièrement nouveau qui, d'une part, n'utilise le modem de l'ordinateur bloc-notes et, d'autre part, ne peut être utilisé qu'à courte distance dans la mesure où les communications infrarouges sont bloquées par les obstacles. There are solutions to this problem. Thus, it is possible to connect to a GSM telephone with a PCMCIA modem. However, the communication speed is limited to 9600 baud and the cost of a communication is high compared to a normal telephone communication. another solution is to connect the notebook computer via an infrared channel with an entirely new system which, on the one hand, does not use the modem of the notebook computer and, on the other hand, can be used only at short distance since infrared communications are blocked by obstacles.
Par consequent, la présente invention a pour objet principal de fournir un système de communication sans fil permettant à un ordinateur portatif tel qu'un ordinateur bloc-notes de posséder modem incorporé pour transmettre ses données sur n'importe quel réseau de transmission de données. Therefore, the main object of the present invention is to provide a wireless communication system allowing a portable computer such as a notebook computer to have a built-in modem for transmitting its data over any data transmission network.
Cette invention concerne donc un système de communication sans fil entre un ordinateur portatif equipé d'un modem incorporé et un réseau de transmission téléphonique équipé d'au moins prise téléphonique, comprenant une carte radio connectée au modem pour convertir les données analogiques du modem en signaux radio transmis par une antenne émettrice, et une base connectée à la prise téléphonique pour convertir les signaux radio reçus par une antenne réceptrice en données analogiques à transmettre sur le réseau de transmission téléphonique. This invention therefore relates to a wireless communication system between a portable computer equipped with an incorporated modem and a telephone transmission network equipped with at least telephone socket, comprising a radio card connected to the modem to convert the analog data of the modem into signals radio transmitted by a transmitting antenna, and a base connected to the telephone jack for converting the radio signals received by a receiving antenna into analog data to be transmitted over the telephone transmission network.
Les objets, caractéristiques et avantages de l'invention apparaîtront mieux à la lecture de la description suivante, accompagnée d'une figure qui représente le système selon l'invention. The objects, characteristics and advantages of the invention will appear better on reading the following description, accompanied by a figure which represents the system according to the invention.
Le mode de réalisation préféré du système selon l'invention est composé de deux parties. D'une part, une carte radio 10 est connectée à l'ordinateur bloc-notes 12. carte radio 10 est connectée à un modem 14 peut être intégré dans l'ordinateur bloc-notes ou inséré sous forme de modem PCMCIA. La carte radio 10 est alimentée directement par le bloc d'alimentation 16 de l'ordinateur bloc-notes. The preferred embodiment of the system according to the invention is composed of two parts. On the one hand, a radio card 10 is connected to the notebook computer 12. radio card 10 is connected to a modem 14 can be integrated into the notebook computer or inserted in the form of a PCMCIA modem. The radio card 10 is supplied directly by the power supply 16 of the notebook computer.
La carte radio 10 a pour fonction principale de convertir les données analogiques reçues du modem en signaux radio sont ensuite transmis par une antenne émettrice 18 utilisant une porteuse d'une fréquence généralement comprise entre 100 MHz et quelques GHz. The main function of the radio card 10 is to convert the analog data received from the modem into radio signals are then transmitted by a transmitting antenna 18 using a carrier with a frequency generally between 100 MHz and a few GHz.
La carte radio 10 a également pour fonction d'ajouter un protocole aux données pour pouvoir les transmettre sur des canaux radio. Ce protocole peut être le protocole téléphonique standard CTO ou, de 'férence, le protocole CT2-CAI. Mais d'autres protocoles peuvent aussi être utilisés selon le coût et l'efficacité désirés du système. The radio card 10 also has the function of adding a protocol to the data so that it can be transmitted over radio channels. This protocol can be the standard CTO telephone protocol or, preferably, the CT2-CAI protocol. However, other protocols can also be used depending on the desired cost and efficiency of the system.
Par ailleurs, une base 20 reçoit par une antenne 22 les signaux radio transmis par l'antenne 18. Cette base est connectée à une prise téléphonique standard 24 et à prise téléphonique analogique normale 28. Furthermore, a base 20 receives by an antenna 22 the radio signals transmitted by the antenna 18. This base is connected to a standard telephone socket 24 and to a normal analog telephone socket 28.
La base 20 a pour fonction de convertir les signaux radio reçus par l'antenne réceptrice 22 en signaux analogiques à l'aide du même protocole que la carte radio 10. Les données analogiques sont ensuite transmises via la prise téléphonique 26 sur le réseau de transmission téléphonique 28, lequel peut être lui-même connecté à un autre réseau de transmission de données tel qu'Internet. On notera qu'une prise de conversion serait nécessaire si le réseau de transmission téléphonique 28 n'était pas un réseau téléphonique analogique standard mais un réseau téléphonique numérique du type RNIS. The base 20 has the function of converting the radio signals received by the receiving antenna 22 into analog signals using the same protocol as the radio card 10. The analog data is then transmitted via the telephone socket 26 on the transmission network. telephone 28, which can itself be connected to another data transmission network such as the Internet. It will be noted that a conversion socket would be necessary if the telephone transmission network 28 was not a standard analog telephone network but a digital telephone network of the ISDN type.
Claims (6)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99480086 | 1999-09-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2799094A1 true FR2799094A1 (en) | 2001-03-30 |
Family
ID=8242465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0011033A Pending FR2799094A1 (en) | 1999-09-23 | 2000-08-29 | Wire less Internet information exchange communications having portable computer with modem and radio card antenna transmitting base unit and analogue signals telephone plug/transmission network passing. |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2799094A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT413457B (en) * | 2001-11-28 | 2006-03-15 | Gericom Ag | PORTABLE COMPUTER |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0683573A2 (en) * | 1994-05-13 | 1995-11-22 | Compaq Computer Corporation | Cordless modem system having multiple base and remote stations which are interusable and secure |
| DE19709430A1 (en) * | 1997-03-07 | 1998-09-10 | Dosch & Amand Gmbh & Co Kg | Device and method for wireless communication in the DECT standard |
| WO1999039530A1 (en) * | 1998-01-28 | 1999-08-05 | Gateway, Inc. | Distributed modem for non-cellular cordless/wireless data communication |
| US5937348A (en) * | 1995-10-05 | 1999-08-10 | International Business Machines Corporation | Cordless communication system for a portable computer modem |
-
2000
- 2000-08-29 FR FR0011033A patent/FR2799094A1/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0683573A2 (en) * | 1994-05-13 | 1995-11-22 | Compaq Computer Corporation | Cordless modem system having multiple base and remote stations which are interusable and secure |
| US5937348A (en) * | 1995-10-05 | 1999-08-10 | International Business Machines Corporation | Cordless communication system for a portable computer modem |
| DE19709430A1 (en) * | 1997-03-07 | 1998-09-10 | Dosch & Amand Gmbh & Co Kg | Device and method for wireless communication in the DECT standard |
| WO1999039530A1 (en) * | 1998-01-28 | 1999-08-05 | Gateway, Inc. | Distributed modem for non-cellular cordless/wireless data communication |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT413457B (en) * | 2001-11-28 | 2006-03-15 | Gericom Ag | PORTABLE COMPUTER |
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