EP1461684A1 - Procede de transmission de donnees entre une unite d'utilisateur et une ressource informatique, dans lequel le mode de communication utilise repose sur la partie d'un schema de codage de position detectee - Google Patents

Procede de transmission de donnees entre une unite d'utilisateur et une ressource informatique, dans lequel le mode de communication utilise repose sur la partie d'un schema de codage de position detectee

Info

Publication number
EP1461684A1
EP1461684A1 EP02792163A EP02792163A EP1461684A1 EP 1461684 A1 EP1461684 A1 EP 1461684A1 EP 02792163 A EP02792163 A EP 02792163A EP 02792163 A EP02792163 A EP 02792163A EP 1461684 A1 EP1461684 A1 EP 1461684A1
Authority
EP
European Patent Office
Prior art keywords
user unit
computer system
protocol stack
computer
communication mode
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.)
Withdrawn
Application number
EP02792163A
Other languages
German (de)
English (en)
Inventor
Linus Wiebe
Petter Ericson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anoto AB
Original Assignee
Anoto AB
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.)
Filing date
Publication date
Application filed by Anoto AB filed Critical Anoto AB
Publication of EP1461684A1 publication Critical patent/EP1461684A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/0304—Detection arrangements using opto-electronic means
    • G06F3/0317—Detection arrangements using opto-electronic means in co-operation with a patterned surface, e.g. absolute position or relative movement detection for an optical mouse or pen positioned with respect to a coded surface
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/0304—Detection arrangements using opto-electronic means
    • G06F3/0317—Detection arrangements using opto-electronic means in co-operation with a patterned surface, e.g. absolute position or relative movement detection for an optical mouse or pen positioned with respect to a coded surface
    • G06F3/0321—Detection arrangements using opto-electronic means in co-operation with a patterned surface, e.g. absolute position or relative movement detection for an optical mouse or pen positioned with respect to a coded surface by optically sensing the absolute position with respect to a regularly patterned surface forming a passive digitiser, e.g. pen optically detecting position indicative tags printed on a paper sheet
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03542—Light pens for emitting or receiving light
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/14—Image acquisition
    • G06V30/142—Image acquisition using hand-held instruments; Constructional details of the instruments
    • G06V30/1423—Image acquisition using hand-held instruments; Constructional details of the instruments the instrument generating sequences of position coordinates corresponding to handwriting

Definitions

  • the invention relates to a method of effecting in a computer system transmission of data between a user unit and a computer resource according to the preamble to 5 claim 1, 13 or 14, a computer program according to the preamble to claim 17, a memory medium according to claim 18, a propagating signal according to claim 19 and a system according to the preamble to claim 20.
  • the present invention is intended for use in connection with digital user units, preferably in the form of digital pens, which are capable of detecting positions on the basis of a position-coding pattern. If a user writes
  • Such a digital device can, by means of a short range
  • radio link such as a BLUETOOTH link
  • PC personal computer
  • the user can by means of the user unit activate other functionalities in such applications .
  • the user can, by marking with the user
  • a drawback of such an approach is the difficulty of guaranteeing secrecy for the user who does not necessarily own and control the computer system (PC) .
  • PC computer system
  • Such an approach also makes it difficult to use the user unit offline, i.e. without direct contact with the computer system, and carry out recorded transactions on a later occasion when a contact has been established.
  • a second conceivable approach is to let the user unit function as a client and have the possibility of es- tablishing on its own a packet switched connection with the required computer resource.
  • the user unit can then on its own generate and receive data packets according to the TCP/IP protocols, which packets are only transmitted by the computer system to which the user unit is con- nected.
  • this second approach is difficult to accomplish.
  • it is difficult to handle a plurality of TCP/IP transactions at the same time.
  • it is complicated to allocate a (required) IP address from the computer system to the user unit .
  • the computer system acts behind a firewall and has proxy settings which are difficult for the user unit to access and without which no connection can be established.
  • it is difficult for the user unit to carry out DNS (Domain Name System) calls.
  • DNS Domain Name System
  • An object of the present invention is to wholly or partly eliminate the above problems. This object is achieved by a method according to claim 1, 13 or 14 a computer program according to claim 17, a memory medium according to claim 18, a propagating signal according to claim 19 and a system according to claim 20.
  • the invention relates to a method of effecting in a computer system transmission of data between a digital user unit and a computer resource, where the user unit is adapted to detect positions on a base which is provided with a part of a global position-coding pattern.
  • the method is characterized in that that a request for access to a computer resource is received, using a first proto- col stack, by the computer system from the user unit, said request containing a position indication relating to which part of the global position-coding pattern that has been detected by the user unit, and that the computer system gains access to a computer resource using a communication mode and a second protocol stack, wherein the communication mode is chosen based on the position indication, and wherein only the second protocol stack comprises TCP/IP functionality, such that only data transmitted between the computer system and the computer resource comprises routing information.
  • the user unit may function as a client while at the same time the computer system can adjust its communication mode to which part of the position-coding pattern is used. Different parts of the pattern imply that different resources are to be called and in different ways .
  • the computer system establishes connections accordingly, but the client functionality is retained in the user unit, so that the connection can be used with maintained secrecy between user unit and computer resource .
  • the first protocol stack may comprise an HTTP-layer in connection with a layer emulating a serial port, and the user unit may act in a client-server mode, where the user unit constitutes the client and the computer resource constitutes the server.
  • a first communication mode may be chosen if the position indication indicates that a first part of the global position-coding pattern is utilized and a second communication mode may be chosen if the position indication indicates that a second part of the global position-coding pattern is utilized.
  • the first communication mode comprises using a first set of protocol layers in the second protocol stack
  • the second communication mode comprises using a second set of protocol layers in the second pro- tocol stack. This enables dynamic use of protocol stacks depending on which part of the position-coding pattern is detected by the user unit .
  • the second protocol stack in the second communication mode contains an additional protocol stack layer as compared with the second protocol stack used in the first communication mode. This entails more possibilities to adapt the communication mode in a manner that corresponds to the application for which it is used. Moreover, since the user unit normally will be battery operated, it may be advantageous to place energy consuming processes in the computer system.
  • said request is an http request.
  • said indication comprises a URL.
  • the indication can comprise one of the detected positions or a part thereof. This results in a more adaptive method.
  • the above additional protocol stack layer is a compression layer. This may be advantageous if the computer resource is reached via a narrowband communication channel, such as a mobile telephony system.
  • the additional protocol stack layer may be an encryption layer. This may be advantageous if the user unit itself cannot perform encryption, or if additional security measures are required.
  • the second communication mode is a point-to-multipoint communication mode.
  • This allows the user unit to communicate with more than one computer resource simultaneously. This may provide, for instance, for backup functionality.
  • a variation of the first aspect of the invention relates to a method in a computer system of effecting transmission of data between a digital user unit and a computer resource, the user unit being adapted to detect positions on a base which is provided with a part of a global position-coding pattern, wherein a request for access to a computer resource is received by the computer system, said request containing a position indication relating to which part of the global position-coding pat- tern that has been detected by the user unit, and that the computer system, if the position indication relates to a predetermined part of the global position-coding pattern, gains access to a computer resource which corresponds to another user unit.
  • This allows the e.g. PC to make possible also communication between user units.
  • Another variation of the first aspect relates to a method in a computer system of effecting transmission of data between a digital user unit and a computer resource, wherein the computer system communicates, using a first protocol stack, with the user unit and communicates with the computer resource using a second protocol stack, wherein only the second protocol stack comprises TCP/IP functionality, such that only data transmitted between the computer system and the computer resource comprises routing information.
  • the user unit acts in a client-server mode, where the user unit constitutes the client and the computer resource constitutes the server.
  • the computer resource is a remote server, and the computer system communicates with the user unit via a serial port or a radio interface which emulates a serial port.
  • the invention relates to a computer program for effecting in a computer system transmission of data between a digital user unit and a computer resource, the user unit being adapted to detect positions on a base which is provided with part of a global position-coding pattern.
  • the invention is then characterized by instructions corresponding to the steps that a request for access to a computer resource is received, using a first protocol stack, by the computer system from the user unit, said request containing a position indication relating to which part of the global position-coding pattern that has been detected by the user unit, and that the computer system gains access to a computer resource using a communication mode and a sec- ond protocol stack, wherein the communication mode is chosen based on the position indication, and wherein only the second protocol stack comprises TCP/IP functionality, such that only data transmitted between the computer system and the computer resource comprises routing informa- tion.
  • the invention relates to a system comprising a digital user unit, a computer resource adapted to communicate with the user unit, and a computer system for effecting transmission of data between the user unit and the computer resource, in which the user unit is adapted to detect positions on a base which is provided with part of a global position-coding pattern.
  • the system is characterized in that the user unit comprises means for transferring, using a first protocol stack, a request for access to a computer resource to the computer system, that said request comprises a position indication relating to which part of the global position-coding pattern that has been detected by the user unit, and that the computer system comprises means for gaining access to a computer resource using a communication mode and a second protocol stack, wherein the communication mode is position indication dependent and only the second protocol stack comprises TCP/IP functionality.
  • This system gives advantages corresponding to the above method and may be varied similarly.
  • Fig. la shows an example of a system in which a method according to the present invention can be utilized.
  • Fig. lb illustrates blocks in the computer system in Fig. la.
  • Fig. 2 illustrates the concept of protocol stack.
  • Fig. 3 illustrates a connection and a communication mode according to an embodiment of the present invention.
  • Fig. 4 shows a first example of an alternative com- munication mode in a computer system.
  • Fig. 5 shows a second example of an alternative communication mode in a computer system.
  • Fig. 6 shows a third example of an alternative communication mode in a computer system.
  • Fig. 7 shows a fourth example of an alternative communication mode in a computer system.
  • Fig. 8 shows a flow chart illustrating a method according to the invention.
  • Fig. la shows an example of a system in which a method according to the present invention can be utilized.
  • the Figure shows a user unit 101 in the form of a digital pen of the type as disclosed in WO 01/26033, which is incorporated herewith by reference.
  • the pen 101 is used for writing on a sheet of paper 102, which is provided with a position-coding pattern 103 (enlarged) .
  • This pattern 103 has the property that if a certain minimum part of the pattern 103 is recorded optically by means of an image sensor in the pen 101, the position of this part and, thus, the pen 101 in the total pattern can be detected.
  • a sequence of absolute positions. is thus recorded, which constitutes a digital copy of what is being written on the sheet 102.
  • the present invention relates to a method of making a connection of such a user unit 101, or a similar type of user unit, to a computer resource, preferably in the form of a server unit 104 which is connected to a network.
  • the connection can be established, for example, via the Internet 105.
  • a computer system such as a personal computer 100, communicating with the user unit and also communicating with the server unit 104, via one or more networks, to establish connection for the portable, digital user unit.
  • the user unit 101 and the computer system 100 can communicate by means of a short range radio link (cf . BLUETOOTH) or with an IR link, cable or the like.
  • the computer system is a link between the user unit and the computer resource .
  • the user unit 101 includes a client functionality, such as http client software.
  • client software can initiate a client-server connection with a server unit.
  • the http client generates an http request.
  • Such a request contains a URL which defines which server is to be contacted.
  • a position-coding pattern of the type disclosed in Applicant's Application WO 01/26033, which is herewith incorporated by reference, is capable of coding with great accuracy an area in the order of 4.6 million square kilometres, which corresponds to enormous amounts of A4 pages.
  • This total surface can for instance be hierarchically divided, for example into a number of "segments” which in turn are divided into a number of "shelves” .
  • Each shelf may contain a number of "books” , and each book a number of pages.
  • Fig. lb shows blocks in the computer system 100 in Fig. la.
  • an interface 107 with driver and adapter for the user unit 101 which interface makes the transmission method, used for user unit-computer system transmissions, transparent to the other parts of the computer system.
  • the computer system 100 according to an embodiment of the invention further comprises a functional module designated "SWITCH" 108, which serves to enable position-indication-dependent communication between the user unit 101 and computer resources, such as remote servers 104, 104' and local applications 109, as will be described below.
  • SWITCH functional module designated "SWITCH” 108, which serves to enable position-indication-dependent communication between the user unit 101 and computer resources, such as remote servers 104, 104' and local applications 109, as will be described below.
  • the computer system 100 in fig lb may be used in different scenarios.
  • PLS Pattern Lookup Ser- vice
  • the PLS server may then optionally also charge users for the utilization of the sheet/pattern.
  • a server can be global (GPLS) , i.e. intended for all users of the global position-coding pattern, or local, i.e. intended for a small group of users.
  • GPLS global
  • the PLS "server” may be entirely local (LPLS) , which means that it is contained in the computer system 100.
  • the local LPLS serves to direct requests and information from the user unit to various applications operating in the computer system (PC) .
  • a GPLS 104 can, in response to a request from a client, supply to the client, i.e. the user unit 101, an address to an application service handler (ASH) 104' which can function as a server in a certain part of the pattern.
  • the user unit 101 then com- municates with the ASH 104' for performing desired functions .
  • ASH application service handler
  • a database 110 included in the LPLS may supply address instructions to a local router 111 included, which transmits data from the user unit to the correct local application (appl . ) 109 in the computer system 100. Then communication occurs between the user unit 101 and the application 109.
  • a requested computer resource may thus relate to an external server, for instance GPLS or ASH, an LPLS or some other local application in the computer system.
  • the term "user unit” may essentially also relate to a process in the computer system, i.e. a virtual user unit.
  • the user unit 101 can, depending on which part of the pattern has been detected, select the PLS server which is to be contacted. Thus the user unit 101 can initiate a pattern-dependent communication.
  • communication modes can be changed in the computer system 100 (for instance a PC) , • via which communication takes place, depending on which partial area of the global position-coding pattern has been detected by the user unit 101.
  • Such a partial area can relate to, for example, a certain segment or a certain shelf in a certain segment. It does not have to involve a contiguous area. It may involve, for example, certain pages in all books on a certain shelf in a certain segment.
  • the module 108 in the computer system 100 which enables this pattern-area-dependent communication can be designated proxy or switching unit.
  • Fig. 2 illustrates the term "protocol stack".
  • the figure shows protocol stacks for two devices 201, 202 communicating with each other, according to the OSI (Open Systems Interconnection) model that is well known to those skilled in the art.
  • OSI Open Systems Interconnection
  • This model is used to describe the function of a communication system.
  • seven different layers were defined, numbered from below and up. However, in most cases the model is shown with a smaller number of separate layers. In the lowermost layer, it is defined how the communication proceeds physically (for instance which voltage levels represent "1" and "0" in transmission by wire) for a non-structured bit stream which is transferred via a medium.
  • comprehen- sive functionalities are defined, such as synchronizing, setting up and terminating connections, and error control etc.
  • the higher layers relate to definitions of the ap- plication that effects the communication, for instance browser software in a personal computer.
  • the amount of data that is to be sent by an application (high up in the model) in a first device, such as a computer system, can in general terms be called payload.
  • payload When such data is to be transmitted, it is moved down in the model, whereby the functionalities in the different layers to a varying degree add what is referred to as overhead, i.e. data which in a layer is added to the data set coming from above, so as to allow the functions that are provided in the layer.
  • overhead i.e. data which in a layer is added to the data set coming from above, so as to allow the functions that are provided in the layer.
  • a payload data stream may be divided into packets, each of which is provided with a header, to be used in forwarding the packet.
  • the two devices communicate with each other and there the data is transferred.
  • the data received in the second device 202 is moved upwards in this protocol stack until it is received by the corresponding application in the second device.
  • Fig. 3 illustrates a connection according to an em- bodiment of the present invention.
  • the figure shows protocol stacks of a user unit, of a computer resource/ server, with which the user unit intends to communicate, and of an intermediate computer system (PC) , via which the communication is intended to take place. Between the PC and the user unit, the communication takes place according to the BLUETOOTH standard and, more specifically, according to the RFCOMM specification which emulates a serial port .
  • the HTTP client is put directly over RFCOMM, i.e. no TCP/IP layers are present in these protocol stacks. Thus no routing information is used in this link, which relates to a point to point connection.
  • This mode of communication between user unit and computer system can be utilized also where the communication mode of the computer system is not dependent on the position-coding pattern.
  • the communication mode of the computer system is not dependent on the position-coding pattern.
  • TCP Transmission Control Protocol
  • IP Internet Protocol
  • NAP Network Access Protocol
  • the function can be such that the user unit generates an HTTP request which is to be transmitted to the server.
  • the request is received by the PC which reads the URL in the request (for instance pls.anoto.com) and makes a DNS call to obtain the corresponding IP address.
  • the PC generates TCP/IP packets (datagrams) which contain the request as payload.
  • the computer system for communication with the user unit utilizes a first protocol stack and for communication with the computer resource utilizes a second protocol stack.
  • Only the second proto- col stack contains TCP/IP functionality so that only data which is transmitted between the computer system and the computer resource contains routing information which is necessary according to the TCP/IP protocol .
  • the above application in the PC which handles the communication can preferably be programmed as an HTTP proxy.
  • a proxy functions as an application level gateway for a client.
  • the application in the PC utilizes different com- munication modes depending on which part of the global position-coding pattern the user unit has detected. For instance, different sets of protocol stacks may be used for different parts of the pattern. For the PC to be able to choose the communication mode depending on which part of the pattern is indicated, a position indication must be transmitted from the user unit to the PC.
  • transmission of a position indication takes place as follows.
  • the user unit detects a position in the global position-coding pattern.
  • the user unit interprets the position information in such manner that a certain server with a certain URL is to be contacted. This can be carried out, for example, by means of a lookup table.
  • the HTTP client creates in the user unit an HTTP request directed to the URL of the server in question.
  • This request is sent to the computer system (PC) which reads the URL. Since this is dependent on which partial area in the position-coding pattern has been detected, such an indication has been transferred to the PC.
  • the indication can be a URL.
  • This is the simplest way of transmitting a position indication to the computer system.
  • the computer system is not allowed to utilize a plurality of separate position- dependent communication modes with one and the same server since the position indication consists of the URL thereof.
  • the position indication can be transferred separately, for instance in the form of a position or part of a position.
  • a complete position can be created as "seg- ment . shelf .book. page/x,y" (1.2.3.4/00556,10124) where x and y define local coordinates within the page. In most cases part of a position is sufficient, for instance "segment . shelf” (1.2.*.*) , which defines a large area. It is also possible to transfer the indication "book” (*.*.3.*) which defines a plurality of non-contiguous areas in the pattern.
  • a communication mode may also be called a communication method.
  • An example of a communication mode is shown in Fig. 3.
  • Figs 4-6 now illustrate variants of the communication modes of the computer system (PC) which are selectable on the basis of which part of the position-coding pattern has been detected.
  • PC computer system
  • Fig. 4 shows a first example of an alternative communication mode in a computer system.
  • a compression layer has been added. This has been made because the computer system has received a position indication which implies that compression is to take place.
  • JPEG compression of image information is thus carried out.
  • This image information may be transferred from the user unit, resident on the computer system (PC) , or retrieved from any computer resource. Compression may be advantageous if data is to be transferred via a narrowband channel, e.g. if data is to be transmitted from the computer system to a computer re- source via a mobile telephony system.
  • compression algorithms are generally calculation intensive and, thus, energy intensive. When the image information originates from the user unit, it may therefore be advantageous to perform such compression in the computer system instead of in the usually battery operated user unit .
  • Fig. 5 shows a second example of an alternative communication mode in a computer system.
  • simultaneous communication with two separate computer resources takes place.
  • the user unit 101 then operates against a local application in the computer system while at the same time a global server records transactions performed.
  • a backup copy is then stored in an additional place.
  • this takes place if a certain area in the po- sition-coding pattern has been detected.
  • the received position indication indicates that the computer system should in general communicate in a point to multipoint fashion.
  • the primary information sent to a first computer resource is mirrored onto another computer resource as secondary information. It should be noted however that the second information need not be entirely identical with the primary information.
  • a user device operates vis-a-vis a local application in a PC
  • the information which is sent in requests to the local application will form the primary information.
  • sec- ondary information corresponding to the primary information may be sent for instance to a remote server, e.g. for backup or billing purposes (e.g. for charging the user for the use of a part of the global position-coding paper that is connected to a specific service) .
  • the sec- ondary information may, for instance, be compressed and encrypted.
  • Another option is to filter the secondary information in order to avoid that certain information leaves the PC/computer system or in order only to mirror e.g. billing-specific information.
  • Fig. 6 shows a third example of an alternative communication mode in a computer system.
  • an encryption layer has been added. This has been made since the computer system has received a position indication which implies that additional encryption is to take place.
  • a further possibility of adjusting the communication mode is, compared with Fig. 3, to remove layers from a protocol stack.
  • the computer system may arrange a communication path between two user units, one functioning as a server and the other as a client, as is indicated in fig 7. Then the computer system may have two protocol stacks such as the left protocol stack in the computer system in Fig. 3.
  • the first user unit (USER UNIT 1) acts as a client and the second user unit (USER UNIT 2) acts as a server.
  • the client server relationship may be switched during the communication.
  • the first and second user units communicate via a computer system (PC) , and use protocol stacks where an HTTP-layer is in direct contact with a layer emulating a serial port, such as an RFCOMM-layer .
  • PC computer system
  • the communication modes of the computer system may be varied also in other ways than changing the protocol stacks. For example, the selection of port for different types of communication may be adjusted depending on which part of the position-coding pattern has been detected.
  • Fig. 8 shows a flow chart illustrating a method according to the invention.
  • the method is performed in a computer system, such as a PC.
  • a request for access to a computer resource is received 801 from a user unit, wherein the request contains a position indication relating to a position coding pattern.
  • a communication mode is chosen 802, based upon the received position indication.
  • the communication mode may be chosen for instance by means of a lookup table, which is stored either in the computer system itself or on a remote server.
  • the computer resource, which was requested by the user unit is accessed using the chosen communication mode.
  • the invention relates to a method of effecting in a computer system transmission of data between a digital user unit and a computer resource, where the user unit is adapted to detect positions on a base which is provided with a part of a global position-coding pattern, wherein the computer system receives from the user unit a request for access to a computer resource, wherein said request contains an indication concerning which part of the global position- coding pattern has been detected by the user unit, wherein the computer system gains access to a computer resource while utilizing a first communication mode if the indication indicates that a first part of the global position-coding pattern has been detected, and wherein the computer system gains access to a computer resource while utilizing a second communication mode if the indication indicates that a second part of the global position-coding pattern has been detected.

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  • General Engineering & Computer Science (AREA)
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  • General Physics & Mathematics (AREA)
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  • Communication Control (AREA)

Abstract

L'invention concerne un procédé utilisé dans un système informatique, destiné à la transmission de données entre une unité d'utilisateur numérique et une ressource informatique, l'unité d'utilisateur étant conçue pour détecter des positions sur la base d'une partie d'un schéma de codage de position global. Le procédé consiste à recevoir une demande d'accès à une ressource informatique, transmise au système informatique par l'unité d'utilisateur, à l'aide d'une première pile de protocoles. Cette demande contient une indication de position correspondant à la partie du schéma de codage de position global détectée par l'unité d'utilisateur. Le système informatique accède à une ressource informatique à l'aide d'une mode de communication et d'une seconde pile de protocoles. Le mode de communication est choisi sur la base de l'indication de position. Seule la seconde pile de protocoles a une fonctionnalité TCP/IP, ce qui signifie que seules les données transmises entre le système informatique et la ressource informatique comprennent des informations de routage.
EP02792163A 2001-12-27 2002-12-19 Procede de transmission de donnees entre une unite d'utilisateur et une ressource informatique, dans lequel le mode de communication utilise repose sur la partie d'un schema de codage de position detectee Withdrawn EP1461684A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0104395A SE0104395L (sv) 2001-12-27 2001-12-27 Sätt att överföra information mellan en digital användarenhet och en datorresurs med hjälp av positionskodning
SE0104395 2001-12-27
PCT/SE2002/002391 WO2003056420A1 (fr) 2001-12-27 2002-12-19 Procede de transmission de donnees entre une unite d'utilisateur et une ressource informatique, dans lequel le mode de communication utilise repose sur la partie d'un schema de codage de position detectee

Publications (1)

Publication Number Publication Date
EP1461684A1 true EP1461684A1 (fr) 2004-09-29

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EP02792163A Withdrawn EP1461684A1 (fr) 2001-12-27 2002-12-19 Procede de transmission de donnees entre une unite d'utilisateur et une ressource informatique, dans lequel le mode de communication utilise repose sur la partie d'un schema de codage de position detectee

Country Status (6)

Country Link
EP (1) EP1461684A1 (fr)
JP (1) JP2005513671A (fr)
CN (1) CN1320427C (fr)
AU (1) AU2002358394A1 (fr)
SE (1) SE0104395L (fr)
WO (1) WO2003056420A1 (fr)

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US7142197B2 (en) 2002-10-31 2006-11-28 Microsoft Corporation Universal computing device
GB0321172D0 (en) * 2003-09-10 2003-10-08 Hewlett Packard Development Co Creation of documents with position identification pattern
GB0321166D0 (en) * 2003-09-10 2003-10-08 Hewlett Packard Development Co Printing digital documents
GB0321167D0 (en) * 2003-09-10 2003-10-08 Hewlett Packard Development Co Printing digital documents
GB2413677A (en) 2004-04-28 2005-11-02 Hewlett Packard Development Co Digital pen and paper system using a pattern which encodes communication parameters
SE0401687D0 (sv) 2004-06-30 2004-06-30 Anoto Ab Information management
DE102005050355A1 (de) * 2005-10-20 2007-05-03 Studio Innovators International Verfahren zur Erzeugung individualisierter Druckerzeugnisse
GB2446203B (en) * 2007-01-10 2010-03-10 Steljes Ltd System and method for operating a digital pen
EP2428874A1 (fr) * 2010-07-06 2012-03-14 Anoto AB Communication par stylo électronique
CN108667787A (zh) * 2017-04-02 2018-10-16 田雪松 一种数据传输方法

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CA2381980C (fr) * 1999-08-30 2011-10-11 Anoto Ab Bloc-notes
CA2394922A1 (fr) * 1999-12-23 2001-07-05 Anoto Ab Systeme de gestion d'informations generales
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See also references of WO03056420A1

Also Published As

Publication number Publication date
WO2003056420A1 (fr) 2003-07-10
CN1608243A (zh) 2005-04-20
AU2002358394A1 (en) 2003-07-15
SE0104395L (sv) 2003-06-28
CN1320427C (zh) 2007-06-06
SE0104395D0 (sv) 2001-12-27
JP2005513671A (ja) 2005-05-12

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