WO2006064142A1 - Interface device - Google Patents

Interface device Download PDF

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Publication number
WO2006064142A1
WO2006064142A1 PCT/FR2005/050993 FR2005050993W WO2006064142A1 WO 2006064142 A1 WO2006064142 A1 WO 2006064142A1 FR 2005050993 W FR2005050993 W FR 2005050993W WO 2006064142 A1 WO2006064142 A1 WO 2006064142A1
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WO
WIPO (PCT)
Prior art keywords
interface device
equipment
link
status
type
Prior art date
Application number
PCT/FR2005/050993
Other languages
French (fr)
Inventor
Didier Filhol
Original Assignee
Viamichelin
Societe De Technologie Michelin
Kirrio
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.)
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Publication date
Application filed by Viamichelin, Societe De Technologie Michelin, Kirrio filed Critical Viamichelin
Priority to EP05818962A priority Critical patent/EP1825381A1/en
Publication of WO2006064142A1 publication Critical patent/WO2006064142A1/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/382—Information transfer, e.g. on bus using universal interface adapter
    • G06F13/387—Information transfer, e.g. on bus using universal interface adapter for adaptation of different data processing systems to different peripheral devices, e.g. protocol converters for incompatible systems, open system
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4004—Coupling between buses
    • G06F13/4027—Coupling between buses using bus bridges
    • G06F13/405—Coupling between buses using bus bridges where the bridge performs a synchronising function
    • G06F13/4059—Coupling between buses using bus bridges where the bridge performs a synchronising function where the synchronisation uses buffers, e.g. for speed matching between buses

Definitions

  • the present invention relates to an interface device, between a device provided with a computer link of a first type and an equipment provided with a computer link of a second type, intelligent in that it is able to simulate the expected status equipment with respect to other equipment.
  • status of a device is meant the master or slave status as defined in the computer field.
  • the computer links between devices are based on protocols defined according to standardized layers. By simplifying and starting from the highest layer to the lowest layer, the client software application is found in the upper layer, then a layer comprising the data processing software modules to be transferred, a layer comprising the software management modules. the link (device recognition, link establishment and speed, data flow management, data transfer protocols ...) and a physical layer including the electronic data transmission devices and the physical link.
  • a widely used protocol and link type is the serial link.
  • a device such as a computer to control the link, the computer being the master device, the device or peripherals being slave devices.
  • This type of link is typically used for computer peripherals such as modems or printers, input devices data such as GPS receivers, keyboards or pointers or temporarily connected equipment such as PDAs or GSM phones or smart phones with enhanced features such as calendar, photo and other management to save data they contain.
  • input devices data such as GPS receivers, keyboards or pointers
  • temporarily connected equipment such as PDAs or GSM phones or smart phones with enhanced features such as calendar, photo and other management to save data they contain.
  • US 6,601,124 discloses a device inserted into a device and for automatically detecting whether this device is connected to a computer through a USB link or a RS232 or RS485 type serial link.
  • This device however requires the device to have both types of interface which is expensive and can only be used for sufficiently large peripherals. To own both interfaces.
  • Document US 6 151 653 describes a specialized device for connecting a modem equipped with an RS 232 interface to a computer equipped with a USB interface.
  • This specialized device is specific to a particular function and in particular does not allow the connection of normally slave devices and thus, not only unable to manage the link but, in addition, lacking means to supply this link.
  • the present invention allows this type of connections.
  • An exemplary application of the present invention relates to the connection of a USB personal assistant with a serial link GPS receiver head.
  • Personal assistants have a slave USB port while the GPS receiving heads have a serial slave port.
  • the present invention makes it possible in particular to establish a connection between such equipment and consists mainly of an interface device between a first device, provided with a digital link of a first type, and a second device provided with a digital link of a second type, characterized in that it comprises means for transferring data from one of the first and second equipment to the other and means for simulating, with respect to at least one of said equipment, a status opposed to the status of this equipment.
  • the device according to the invention makes it possible not only to connect devices comprising a first type of link, in particular a serial link, to devices without this type of link but provided with a second type of connection, in particular USB, but also to connect and communicate sets of devices of identical status rendering them incapable of dialogue.
  • FIG. 1 a schematic view showing possible uses of an interface device according to the invention
  • FIG. 2 an internal schematic view of the device of FIG. 1
  • FIG. 3 a table showing examples of configurations of the device as a function of the type of equipment to be connected.
  • An example of an interface device 1, between a first device 2, provided with a digital link of a first type 3, and a second device 4, provided with a digital link of a second type 5, is schematically represented in FIG. to examples of equipment to connect in Figure 1.
  • the link of the first type 3 is a serial link
  • the first equipment may be a master status equipment such as a personal computer 2b or slave status such as a GPS reception head 2a, a modem 2c, a cellular phone 2d , 2d ', 2nd personal assistant or any other equipment using a serial link.
  • connection of the second type 5 is a USB type link acronym of the English terminology UNIVERSAL SERIAL BUS
  • the equipment of the second type can also be a master status equipment as a personal computer 4d or slave status as a personal assistant 4a, a multimedia device 4c, a printer 4b or other.
  • the device includes means 11, 13 for transferring data from one of the first and second devices to the other and means for managing the transferred data and the status simulation.
  • microcontroller 18 driving on the one hand a component 11 for managing a serial link connected to a serial terminal connector 12 and, on the other hand, a component 13 for managing a USB link connected to USB terminal connector 14.
  • the microcontroller 18 comprises a calculation part 18a and a microcode part 18b or program memory 18b.
  • the link management components are responsible for managing the data transmission speeds, part of the communication protocols, the microcontroller including means, in the form of a program contained in the program memory 18b in the form of micro-code. integrated directly into the microcontroller, to simulate, with respect to at least one of said equipment 2, 4, a status 6, 7 opposite to the status of this equipment in order to allow communication with this equipment.
  • a complementary part of the program may be provided in an external memory 17 possibly re-programmable.
  • the components are advantageously grouped together on a small electronic card housed for example in a plug interposed between a first cable for the first link and a second cable for the second link.
  • the master devices are responsible for providing a sufficient supply voltage for sluggishly low consuming devices.
  • the master device supplies the current required for the connection.
  • the device When the two connected devices have a slave status, no power supply is available and to overcome this problem, the device is provided with an external power supply link 10.
  • This power supply supplies power to the power supply.
  • device and according to an advantageous embodiment is capable of supplying at least one of said insertion links.
  • connection configurations is shown in Figure 3 for various types of equipment.
  • the device When a device 2, 4 is connected, the device performs a recognition of this equipment and, when this equipment is recognized as an equipment of the slave type E, the means for simulating a status are configured to simulate a master status M for this device. equipment 2, 4.
  • the device can be configured to perform recognition on only one of the two links but in a particular embodiment, the device comprises software means adapted to detect the status of equipment connected on both sides.
  • the means 18, comprising the microcontroller and its programming code, to simulate a status being then configured to simulate a master status on each side of the link and , with respect to two devices recognized as slaves
  • the interface device 1 then constitutes a gateway behaving as a master device with respect to two slave status equipment to be connected together and managing the two links simultaneously to enable the transfer of data from equipment to the other.
  • the device further comprises, at the programming level, protocol conversion means adapted to transfer data between the link of the first type and the link of the second type.
  • the interface device comprises means for managing the connection speed and flow control of this link.
  • These means comprise a determination by the microcontroller 18 of the type of signals to be transmitted to the management component of the serial link and at this component the generation of the frames for adjusting the transmission rate and the flow control signals.
  • the interface device comprises means for managing this USB link in order to choose the transfer mode used from among the defined modes such as the type of USB flow: by control, by interruption, isochronous, or en masse, means for managing the connection and disconnection of the second hot equipment, means for identifying and configuring the second equipment and means adapted to enable said second equipment to control the connection with the first equipment.
  • the defined modes such as the type of USB flow: by control, by interruption, isochronous, or en masse
  • means for managing the connection and disconnection of the second hot equipment means for identifying and configuring the second equipment and means adapted to enable said second equipment to control the connection with the first equipment.
  • the device ensuring the transfer of data between the equipment and having to manage the synchronization of the two sides advantageously comprises a buffer memory 14 and means for regulating the data transfer between the two links.
  • the device In order to be able to supply the device and possibly at least one of the links, the device is provided with an external power supply cable, possibly able to be disconnected from the device, connecting to an external source and a voltage converter device. power supply for supplying said link.
  • the device according to the invention thus makes it possible to connect any type of equipment of status X either master or slave to any equipment of status Y (master or slave), the device then taking the opposite status corresponding to the connected equipment (status Y for equipment X and status X for equipment with status Y).

Abstract

The invention relates to an interface device (1) arranged between a first appliance (2) provided with a first type of digital connection (3), and a second appliance (4) provided with a second type of digital connection (5). Said device is characterised in that it comprises means (11, 13) for transferring data from one of the first and second appliances to the other, and means (18) for simulating, in relation to at least one of said appliances (2, 4), a status (6, 7) opposing the status of said appliance.

Description

DISPOSITIF INTERFACE INTERFACE DEVICE
La présente invention concerne un dispositif interface, entre un équipement pourvu d'une liaison informatique d'un premier type et un équipement pourvu d'une liaison informatique d'un second type, intelligent en ce qu'il est apte à simuler le statut attendu d'un équipement vis à vis d'un autre équipement.The present invention relates to an interface device, between a device provided with a computer link of a first type and an equipment provided with a computer link of a second type, intelligent in that it is able to simulate the expected status equipment with respect to other equipment.
Par statut d'un équipement on entend le statut maître ou esclave tel que défini dans le domaine informatique.By status of a device is meant the master or slave status as defined in the computer field.
Les liaisons informatiques entre des équipements sont basées sur des protocoles définis selon des couches normalisées. En simplifiant et en partant de la couche la plus haute vers la couche la plus basse on trouve en couche supérieure l'application logicielle cliente, puis une couche comprenant les modules logiciels de traitement des données à transférer, une couche comprenant les modules de gestion logicielle de la liaison (reconnaissance du périphérique, établissement de la liaison et de sa vitesse, gestion du flux des données, protocoles de transfert des données ...) et une couche physique comportant les dispositifs électroniques de transmission des données et la liaison physique.The computer links between devices are based on protocols defined according to standardized layers. By simplifying and starting from the highest layer to the lowest layer, the client software application is found in the upper layer, then a layer comprising the data processing software modules to be transferred, a layer comprising the software management modules. the link (device recognition, link establishment and speed, data flow management, data transfer protocols ...) and a physical layer including the electronic data transmission devices and the physical link.
Pour ce qui concerne les protocoles de transfert des données par la couche physique, plusieurs configurations sont possibles selon qu'il s'agit d'une communication entre deux dispositifs de type défini et fixe ou entre plusieurs dispositifs de type divers.As regards the protocols for transferring data by the physical layer, several configurations are possible depending on whether it is a communication between two devices of defined and fixed type or between several devices of various types.
Un protocole et un type de liaison largement employés sont la liaison série.A widely used protocol and link type is the serial link.
Pour ce type de liaison il est commun qu'un dispositif tel qu'un ordinateur pilote la liaison, l'ordinateur étant l'équipement maître, le ou les périphériques étant des équipements esclaves.For this type of connection, it is common for a device such as a computer to control the link, the computer being the master device, the device or peripherals being slave devices.
Ce type de liaison est généralement utilisé pour des périphériques informatiques tels que modems ou imprimantes, des périphériques d'entrée de données tels que des récepteurs GPS, des claviers ou pointeurs ou des équipements temporairement connectés tels que des assistants personnels ou des téléphones GSM ou téléphones mobiles intelligents (smartphones) comportant des fonctions enrichies telles que gestion d'agenda, photo ou autres afin de sauvegarder les données qu'ils contiennent.This type of link is typically used for computer peripherals such as modems or printers, input devices data such as GPS receivers, keyboards or pointers or temporarily connected equipment such as PDAs or GSM phones or smart phones with enhanced features such as calendar, photo and other management to save data they contain.
Ce type de liaison tend à disparaître pour être remplacé par des liaisons connues sous l'acronyme anglo-saxon USB.This type of link tends to disappear to be replaced by links known by the acronym Anglo-Saxon USB.
Le document US 6 601 124 décrit un dispositif s'insérant dans un périphérique et permettant de détecter automatiquement si ce périphérique est raccordé à un ordinateur au travers d'une liaison USB ou d'une liaison série de type RS232 ou RS485.US 6,601,124 discloses a device inserted into a device and for automatically detecting whether this device is connected to a computer through a USB link or a RS232 or RS485 type serial link.
Ce dispositif impose toutefois au périphérique de posséder les deux types d'interface ce qui est coûteux et n'est utilisable que pour des périphériques suffisamment volumineux .pour posséder les deux interfaces.This device however requires the device to have both types of interface which is expensive and can only be used for sufficiently large peripherals. To own both interfaces.
En outre il reste nécessaire de pouvoir raccorder des périphériques d'ancienne génération et notamment pourvus de liaison série à des équipements de nouvelle génération tels que des équipements pourvus d'une liaison de type USB et dépourvus de port série.In addition, it remains necessary to be able to connect old generation devices including those with serial link to new generation equipment such as equipment with a USB type connection and no serial port.
Le document US 6 151 653 décrit pour sa part un dispositif spécialisé pour connecter un modem muni d'une interface RS 232 à un ordinateur muni d'une interface USB.Document US 6 151 653 describes a specialized device for connecting a modem equipped with an RS 232 interface to a computer equipped with a USB interface.
Ce dispositif spécialisé est spécifique d'une fonction particulière et notamment ne permet pas de connecter entre eux des équipements normalement esclaves et ainsi, non seulement incapables de pouvoir gérer la liaison mais, en outre, dépourvus de moyens d'alimenter cette liaison.This specialized device is specific to a particular function and in particular does not allow the connection of normally slave devices and thus, not only unable to manage the link but, in addition, lacking means to supply this link.
La présente invention permet ce type de connexions.The present invention allows this type of connections.
Un exemple d'application de la présente invention concerne la connexion d'un assistant personnel USB avec une tête réceptrice GPS à liaison série.An exemplary application of the present invention relates to the connection of a USB personal assistant with a serial link GPS receiver head.
Les assistants personnels sont pourvus d'un port USB esclave alors que les têtes de réception GPS sont elles pourvues d'un port série esclave.Personal assistants have a slave USB port while the GPS receiving heads have a serial slave port.
Il est donc en pratique impossible de les raccorder non seulement du fait que les protocoles de communication diffèrent, mais aussi du fait que ces équipements sont incapables de gérer la communication et en plus du fait que ces équipements ne disposent pas des moyens d'alimenter la liaison. La présente invention permet notamment d'établir une connexion entre de tels équipements et consiste principalement pour ce faire en un dispositif interface, entre un premier équipement, pourvu d'une liaison numérique d'un premier type, et, un second équipement, pourvu d'une liaison numérique d'un second type, caractérisé en ce qu'il comporte des moyens pour transférer des données d'un des premier et second équipements vers l'autre et des moyens pour simuler, vis à vis d'au moins un desdits équipements, un statut opposé au statut de cet équipement.It is therefore practically impossible to connect them not only because the communication protocols differ, but also because these devices are incapable of managing the communication and in addition to the fact that these devices do not have the means to feed the communication. link. The present invention makes it possible in particular to establish a connection between such equipment and consists mainly of an interface device between a first device, provided with a digital link of a first type, and a second device provided with a digital link of a second type, characterized in that it comprises means for transferring data from one of the first and second equipment to the other and means for simulating, with respect to at least one of said equipment, a status opposed to the status of this equipment.
Ainsi le dispositif selon l'invention permet non seulement de relier des appareils comportant un premier type de liaison notamment série à des appareils dépourvus de ce type de liaison mais pourvus d'un second type de liaison notamment USB mais encore de relier et de faire communiquer ensembles des appareils de statut identique les rendant incapables de dialoguer.Thus, the device according to the invention makes it possible not only to connect devices comprising a first type of link, in particular a serial link, to devices without this type of link but provided with a second type of connection, in particular USB, but also to connect and communicate sets of devices of identical status rendering them incapable of dialogue.
D'autres caractéristiques et avantages de l'invention seront mieux compris à la lecture de la description qui va suivre accompagnée des figures qui représentent: en figure 1 : une vue schématique représentant des utilisations possibles d'un dispositif interface selon l'invention; en figure 2: une vue schématique interne du dispositif de la figure 1 ; en figure 3: un tableau représentant des exemples de configurations du dispositif en fonction du type d'équipements à connecter.Other features and advantages of the invention will be better understood on reading the description which follows accompanied by the figures which represent: in FIG. 1: a schematic view showing possible uses of an interface device according to the invention; in FIG. 2: an internal schematic view of the device of FIG. 1; in FIG. 3: a table showing examples of configurations of the device as a function of the type of equipment to be connected.
Un exemple de dispositif interface 1 , entre un premier équipement 2, pourvu d'une liaison numérique d'un premier type 3, et, un second équipement 4, pourvu d'une liaison numérique d'un second type 5 est schématiquement représenté en vis à vis d'exemples d'équipements à connecter en figure 1.An example of an interface device 1, between a first device 2, provided with a digital link of a first type 3, and a second device 4, provided with a digital link of a second type 5, is schematically represented in FIG. to examples of equipment to connect in Figure 1.
Selon cet exemple, la liaison du premier type 3 est une liaison série, le premier équipement pouvant être un équipement de statut maître comme un ordinateur personnel 2b ou de statut esclave comme une tête de réception GPS 2a, un modem 2c, un téléphone cellulaire 2d, 2d', un assistant personnel 2e ou tout autre équipement utilisant une liaison série.According to this example, the link of the first type 3 is a serial link, the first equipment may be a master status equipment such as a personal computer 2b or slave status such as a GPS reception head 2a, a modem 2c, a cellular phone 2d , 2d ', 2nd personal assistant or any other equipment using a serial link.
Toujours selon cet exemple, la liaison du second type 5 est une liaison de type USB acronyme de la terminologie anglo-saxonne UNIVERSAL SERIAL BUS, l'équipement du second type pouvant la aussi être un équipement de statut maître comme un ordinateur personnel 4d ou de statut esclave comme un assistant personnel 4a, un dispositif multimédia 4c, une imprimante 4b ou autre.Still according to this example, the connection of the second type 5 is a USB type link acronym of the English terminology UNIVERSAL SERIAL BUS, the equipment of the second type can also be a master status equipment as a personal computer 4d or slave status as a personal assistant 4a, a multimedia device 4c, a printer 4b or other.
Le dispositif, dont une représentation schématique interne est décrite en figure 2 comporte des moyens 11 , 13 pour transférer des données d'un des premier et second équipements vers l'autre et des moyens de gestion des données transférées et de simulation de statut.The device, an internal schematic representation of which is described in FIG. 2, includes means 11, 13 for transferring data from one of the first and second devices to the other and means for managing the transferred data and the status simulation.
Ces derniers moyens comportent un micro-contrôleur 18 pilotant d'une part un composant 11 de gestion d'une liaison série reliée à un connecteur terminal série 12 et, d'autre part, un composant 13 de gestion d'une liaison USB reliée à connecteur terminal USB 14.These latter means comprise a microcontroller 18 driving on the one hand a component 11 for managing a serial link connected to a serial terminal connector 12 and, on the other hand, a component 13 for managing a USB link connected to USB terminal connector 14.
Le microcontrôleur 18 comporte une partie de calcul 18a et une partie de microcode 18b ou mémoire programme 18b.The microcontroller 18 comprises a calculation part 18a and a microcode part 18b or program memory 18b.
Les composants de gestion des liaisons se chargent de gérer les vitesses de transmission des données, une partie des protocoles de communication, le micro-contrôleur comportant en outre des moyens, sous forme de programme contenu dans la mémoire programme 18b sous forme de micro-code intégré directement dans le micro-contrôleur, pour simuler, vis à vis d'au moins un desdits équipements 2, 4, un statut 6, 7 opposé au statut de cet équipement afin de permettre une communication avec cet équipement.The link management components are responsible for managing the data transmission speeds, part of the communication protocols, the microcontroller including means, in the form of a program contained in the program memory 18b in the form of micro-code. integrated directly into the microcontroller, to simulate, with respect to at least one of said equipment 2, 4, a status 6, 7 opposite to the status of this equipment in order to allow communication with this equipment.
Une partie complémentaire du programme peut être prévue dans une mémoire externe 17 éventuellement re-programmable.A complementary part of the program may be provided in an external memory 17 possibly re-programmable.
Les composants sont avantageusement regroupés sur une carte électronique de petites dimensions logée par exemple dans un bouchon intercalés entre un premier câble pour la première liaison et un second câble pour la seconde liaison.The components are advantageously grouped together on a small electronic card housed for example in a plug interposed between a first cable for the first link and a second cable for the second link.
Dans le cas de la liaison USB notamment, les dispositifs maîtres sont chargés de fournir une tension d'alimentation suffisante pour des dispositifs esclaves faiblement consommateurs.In the case of the USB link in particular, the master devices are responsible for providing a sufficient supply voltage for sluggishly low consuming devices.
Pour la liaison série, le dispositif maître fournit le courant nécessaire à la liaison.For the serial link, the master device supplies the current required for the connection.
Lorsque les deux équipements à reliés ont un statut esclave aucune alimentation n'est disponible et pour pallier à ce problème, le dispositif est pourvu d'une liaison d'alimentation externe 10. Cette alimentation permet d'alimenter le dispositif et selon un mode de réalisation avantageux est susceptible d'alimenter au moins l'une desdites liaisons en insertion.When the two connected devices have a slave status, no power supply is available and to overcome this problem, the device is provided with an external power supply link 10. This power supply supplies power to the power supply. device and according to an advantageous embodiment is capable of supplying at least one of said insertion links.
Un exemple de configurations de raccordement est représenté en figure 3 pour divers types d'équipements.An example of connection configurations is shown in Figure 3 for various types of equipment.
Lorsque l'on connecte un équipement 2, 4, le dispositif effectue une reconnaissance de cet équipement et, lorsque cet équipement est reconnu comme un équipement du type esclave E, les moyens pour simuler un statut sont configurés pour simuler un statut maître M pour cet équipement 2, 4.When a device 2, 4 is connected, the device performs a recognition of this equipment and, when this equipment is recognized as an equipment of the slave type E, the means for simulating a status are configured to simulate a master status M for this device. equipment 2, 4.
Le dispositif peut être configuré pour n'effectuer la reconnaissance que sur une seule des deux liaisons mais en mode de réalisation particulier, le dispositif comporte des moyens logiciels adaptés à détecter le statut des équipements raccordés des deux côtés.The device can be configured to perform recognition on only one of the two links but in a particular embodiment, the device comprises software means adapted to detect the status of equipment connected on both sides.
Dans ce dernier cas, une reconnaissance du statut de l'autre équipement est alors effectuée, les moyens 18, comprenant le microcontrôleur et son code de programmation, pour simuler un statut étant alors configurés pour simuler un statut maître de chaque côté de la liaison et, vis à vis de deux équipements reconnus comme esclaves, le dispositif interface 1 constitue alors une passerelle se comportant en équipement maître vis à vis de deux équipements de statut esclave à relier ensembles et gérant les deux liaisons simultanément pour permettre le transfert de données d'un équipement vers l'autre.In the latter case, a recognition of the status of the other equipment is then performed, the means 18, comprising the microcontroller and its programming code, to simulate a status being then configured to simulate a master status on each side of the link and , with respect to two devices recognized as slaves, the interface device 1 then constitutes a gateway behaving as a master device with respect to two slave status equipment to be connected together and managing the two links simultaneously to enable the transfer of data from equipment to the other.
Pour ce faire, le dispositif comporte en outre au niveau de sa programmation des moyens de conversion de protocole adaptés à transférer des données entre la liaison du premier type et la liaison du second type.To do this, the device further comprises, at the programming level, protocol conversion means adapted to transfer data between the link of the first type and the link of the second type.
Dans le cadre d'une liaison du premier type 3 de type liaison série et en particulier pour le raccordement d'un équipement série esclave, le dispositif interface comporte des moyens de gestion de la vitesse de connexion et de contrôle de flux de cette liaison.In the context of a link of the first type 3 of the serial link type and in particular for the connection of a slave serial device, the interface device comprises means for managing the connection speed and flow control of this link.
Ces moyens comportent une détermination par le microcontrôleur 18 du type de signaux à émettre vers le composant de gestion de la liaison série et au niveau de ce composant la génération des trames de réglage de la vitesse de transmission et les signaux de contrôle de flux.These means comprise a determination by the microcontroller 18 of the type of signals to be transmitted to the management component of the serial link and at this component the generation of the frames for adjusting the transmission rate and the flow control signals.
Pour une liaison de second type 4 de type liaison USB, le dispositif interface comporte des moyens de gestion de cette liaison USB pour choisir le mode de transfert utilisé parmi les modes définis tels que le type de flux USB: par contrôle, par interruption, isochrone, ou en masse, des moyens de gestion du branchement et du débranchement du second équipement à chaud, des moyens d'identification et de configuration du second équipement et des moyens adaptés pour permettre à ce second équipement de piloter la liaison avec le premier équipement.For a link of the second type 4 of the USB link type, the interface device comprises means for managing this USB link in order to choose the transfer mode used from among the defined modes such as the type of USB flow: by control, by interruption, isochronous, or en masse, means for managing the connection and disconnection of the second hot equipment, means for identifying and configuring the second equipment and means adapted to enable said second equipment to control the connection with the first equipment.
Le dispositif assurant le transfert des données entre les équipements et devant gérer la synchronisation des deux côtés comporte avantageusement une mémoire tampon 14 et des moyens de régulation des transfert de données entre les deux liaisons.The device ensuring the transfer of data between the equipment and having to manage the synchronization of the two sides advantageously comprises a buffer memory 14 and means for regulating the data transfer between the two links.
Pour pouvoir alimenter le dispositif et éventuellement au moins une des liaisons, le dispositif est pourvu d'un câble d'alimentation externe, pouvant éventuellement être débranché du dispositif, se reliant à une source externe et d'un dispositif 15 convertisseur de tension d'alimentation pour alimenter ladite liaison.In order to be able to supply the device and possibly at least one of the links, the device is provided with an external power supply cable, possibly able to be disconnected from the device, connecting to an external source and a voltage converter device. power supply for supplying said link.
Comme représenté sur le tableau de la figure 3 le dispositif selon l'invention permet donc de raccorder tout type d'équipement de statut X soit maître soit esclave à tout équipement de statut Y (maître ou esclave), le dispositif prenant alors le statut opposé correspondant à l'équipement connecté (statut Y pour un équipement X et statut X pour un équipement de statut Y). As shown in the table of FIG. 3, the device according to the invention thus makes it possible to connect any type of equipment of status X either master or slave to any equipment of status Y (master or slave), the device then taking the opposite status corresponding to the connected equipment (status Y for equipment X and status X for equipment with status Y).

Claims

R E V E N D I C A T I O N SR E V E N D I C A T IO N S
1 - Dispositif interface (1 ), entre un premier équipement (2), pourvu d'une liaison numérique (3) d'un premier type, et, un second équipement (4), pourvu d'une liaison numérique (5) d'un second type, caractérisé en ce qu'il comporte des moyens (11 , 13) pour transférer des données d'un des premier et second équipements vers l'autre et des moyens (18) pour simuler, vis à vis d'au moins un desdits équipements (2, 4), un statut (6, 7) opposé au statut de cet équipement.1 - Interface device (1), between a first device (2), provided with a digital link (3) of a first type, and a second device (4), provided with a digital link (5) of a second type, characterized in that it comprises means (11, 13) for transferring data from one of the first and second equipment to the other and means (18) for simulating, with respect to least one of said equipment (2, 4), a status (6, 7) opposite the status of this equipment.
2 - Dispositif interface selon la revendication 1 caractérisé en ce qu'il comporte une liaison d'alimentation externe (10) susceptible d'alimenter au moins l'une desdites liaisons en insertion.2 - Interface device according to claim 1 characterized in that it comprises an external power connection (10) capable of supplying at least one of said insertion links.
3 - Dispositif interface selon la revendication 1 ou 2 caractérisé en ce que les moyens pour simuler un statut sont configurés pour simuler un statut maître (M) pour un équipement (2, 4) esclave (E).3 - Interface device according to claim 1 or 2 characterized in that the means for simulating a status are configured to simulate a master status (M) for a device (2, 4) slave (E).
4 - Dispositif interface selon la revendication 3 caractérisé en ce que les moyens (18) pour simuler un statut sont configurés pour simuler un statut maître vis à vis de deux équipements reconnus comme esclaves, le dispositif interface (1 ) constituant une passerelle se comportant en équipement maître vis à vis de deux équipements de statut esclave à relier ensembles.4 - Interface device according to claim 3 characterized in that the means (18) for simulating a status are configured to simulate a master status with respect to two equipment recognized as slaves, the interface device (1) constituting a gateway behaving in master equipment with respect to two slave status equipment to connect sets.
5 - Dispositif interface selon l'une quelconque des revendications précédentes caractérisé en ce qu'il comporte des moyens de conversion de protocole adaptés à transférer des données entre la liaison du premier type et la liaison du second type.5 - Interface device according to any one of the preceding claims characterized in that it comprises protocol conversion means adapted to transfer data between the link of the first type and the connection of the second type.
6 - Dispositif interface selon l'une quelconque des revendications précédentes caractérisé en ce que, la liaison du premier type (3) étant une liaison série, le dispositif interface comporte des moyens de gestion de la vitesse de connexion et de contrôle de flux de cette liaison.6 - Interface device according to any one of the preceding claims characterized in that, the connection of the first type (3) being a serial link, the interface device comprises means for managing the connection speed and flow control of this link.
7 - Dispositif interface selon l'une quelconque des revendications précédentes caractérisé en ce que, la liaison du second type (4) étant une liaison USB, le dispositif interface comporte des moyens de gestion de cette liaison USB. 8 - Dispositif interface selon la revendication 7 caractérisé en ce qu'il comprend des moyens de gestion du branchement et du débranchement du second équipement à chaud.7 - Interface device according to any one of the preceding claims characterized in that, the connection of the second type (4) being a USB link, the interface device comprises means for managing this USB link. 8 - Interface device according to claim 7 characterized in that it comprises means for managing the connection and disconnection of the second hot equipment.
9 - Dispositif interface selon la revendication 7 ou 8 caractérisé en ce qu'il comprend des moyens d'identification et de configuration du second équipement et des moyens adaptés pour permettre à ce second équipement de piloter la liaison avec le premier équipement.9 - Interface device according to claim 7 or 8 characterized in that it comprises means for identifying and configuring the second equipment and means adapted to allow the second equipment to control the connection with the first equipment.
10 - Dispositif interface (1 ) selon l'une quelconque des revendications précédentes caractérisé en ce qu'il comporte une carte électronique pourvue d'un micro-contrôleur (18) pilotant d'une part un composant (11 ) de gestion d'une liaison série reliée à un connecteur terminal série (12) et, d'autre part, un composant (13) de gestion d'une liaison USB reliée à connecteur terminal USB (14).10 - Interface device (1) according to any one of the preceding claims, characterized in that it comprises an electronic card provided with a microcontroller (18) driving on the one hand a component (11) management a serial link connected to a serial terminal connector (12) and, on the other hand, a component (13) for managing a USB link connected to a USB terminal connector (14).
11 - Dispositif interface selon la revendication 10 caractérisé en ce qu'il comporte un câble d'alimentation externe se reliant à une source externe et un dispositif (15) convertisseur de tension d'alimentation pour alimenter ladite liaison.11 - Interface device according to claim 10 characterized in that it comprises an external power cable connecting to an external source and a device (15) power supply voltage converter for supplying said link.
12 - Dispositif interface selon la revendication 10 ou 11 caractérisé en ce qu'il comporte une mémoire tampon (14) et des moyens de régulation des transfert de données entre les deux liaisons. 12 - Interface device according to claim 10 or 11 characterized in that it comprises a buffer memory (14) and means for regulating data transfer between the two links.
PCT/FR2005/050993 2004-12-15 2005-11-24 Interface device WO2006064142A1 (en)

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FR0452996 2004-12-15
FR0452996 2004-12-15

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US6601124B1 (en) * 2000-02-14 2003-07-29 International Business Machines Corporation Universal interface for selectively coupling to a computer port type and method therefor
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