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WO2001067265A1 - Extraction d'informations sur un reseau eloigne en fonction du contexte spatial - Google Patents

Extraction d'informations sur un reseau eloigne en fonction du contexte spatial Download PDF

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Publication number
WO2001067265A1
WO2001067265A1 PCT/US2001/006112 US0106112W WO0167265A1 WO 2001067265 A1 WO2001067265 A1 WO 2001067265A1 US 0106112 W US0106112 W US 0106112W WO 0167265 A1 WO0167265 A1 WO 0167265A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
user
data network
data terminal
cue signal
Prior art date
Application number
PCT/US2001/006112
Other languages
English (en)
Inventor
Jon F. Pressman
Original Assignee
Pressman Jon F
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 Pressman Jon F filed Critical Pressman Jon F
Priority to AU2001239883A priority Critical patent/AU2001239883A1/en
Publication of WO2001067265A1 publication Critical patent/WO2001067265A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/04—Protocols specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/2866—Architectures; Arrangements
    • H04L67/30—Profiles
    • H04L67/306—User profiles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/51—Discovery or management thereof, e.g. service location protocol [SLP] or web services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/52—Network services specially adapted for the location of the user terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • 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

Definitions

  • the present invention relates to apparatus and methods for delivering information to an individual m which the information is relevant to the location of the individual, or in which the information is contextuallly-related relevant to the location of that individual relative to other individuals or establishments
  • the internet is a popular medium through which people can obtain
  • cyberspace is a world set apart from the user's physical situation in the real world.
  • the tremendous amount of information that is available can itself make it difficult for the user to be made aware of, or to
  • a user searching the internet for a particular va ⁇ ety of merchandise or personal service may, for example, be as likely to find a vendor of such goods and services on the other side of planet as they are to find one in their own town.
  • geographically dist ⁇ ubbed communities of interest have been formed in chat
  • a portable data terminal having a display is configured for maintaining a connection with the internet.
  • the portable data terminal is further provided with a radio frequency (RF) receiver for receiving low-power RF signals when the portable data terminal is located near a low-power local transmitter.
  • the local transmitter is positioned
  • the portable data terminal is configured to receive such a cue and to respond by retrieving the spatially relevant information.
  • the portable data terminal further has a low power transmitter for signaling its proximity to other similarly-configured terminals, and for transmitting a cue signal to provide a link to information pertaining to or associated with the
  • filtering spatially-obtained links to information by a portable data terminal is provided.
  • the user may define a personal profile according to which information received pursuant to receipt of a cue signal is matched against the personal profile of the user, and information which is not of interest to that user is not retrieved.
  • the filtering methods of the present invention provide a mechanism by
  • FIG. 1 is a block functional diagram of apparatus arranged to operate in accordance with the present invention
  • FIG. 2 is a diagram of an electronic signaling protocol employed in the present invention
  • FIG. 3 is a flow diagram of a method of carrying out the present invention.
  • FIG 4 is a block functional diagram of an alternative embodiment of the invention.
  • FIG. 5 is a diagram of an index page of information made accessible in the embodiment of FIG. 4;
  • FIG. 6 is a diagram of a table of information collected and stored in a mobile device in accordance with the invention.
  • FIG. 7 is a block diagram of an embodiment of the invention employing Global Positioning System data.
  • the terminal 10 includes a display 12, such as an LCD display; an input interface 14, such as a pressure-sensitive pen actuated interface 16; a processor 16; a memory
  • a cellular communication transceiver such as a code-division multiple access (CDMA) transceiver 20, and an antenna 22 connected with the CDMA transceiver 20
  • CDMA code-division multiple access
  • PDA personal digital assistant
  • PDA personal digital assistant
  • PLM personal digital assistant
  • the portable data terminal 10 is provided with approp ⁇ ate software by which the processor 16 may control the CDMA transceiver to establish bi-directional communication with a remote
  • the portable data terminal is further provided with a RF receiver 30, distinct from the receiver circuitry of the CDMA transceiver.
  • the RF receiver 30 is configured to receive low-power RF transmissions when the RF receiver is
  • the RF receiver 30 may receive such transmissions via antenna 32, which is operated
  • the transmitter 34 is operative to generate a low-power RF transmission
  • the transmission strength of the transmitter 34, and/or the gain of RF receiver 30, is low enough to confine the transmission and reception of signals from the transmitter 34 to withm several hundred yards, and preferably within less than 100 yards of separation distance between the transmitter 34 and the portable data terminal.
  • the transmitter 34 is configured to transmit a cue signal into which va ⁇ ous information pertinent to the
  • the operator of the transmitter 34 may be encoded
  • the operator of the transmitter 24 may desire portable data terminals within the vicinity of the transmitter 34 to receive particular data, such as may be contained in a web page stored on a server 38 connected with the internet 28
  • the transmitter may repeatedly issue a cue signal of the type shown in FIG. 2, which comp ⁇ ses a packet 33 of data containing a pre-defined start sequence 35, for signaling the initial portion of the packet; a transmitter
  • identifier 37 code which is a unique identifier assigned to the transmitter
  • the processor 16 of the portable data terminal 10 is programmed to respond to the cue signal 33 as follows. Initially, at step 40, the terminal 10 operates m a scanning mode, and the processor controls the receiver to scan a sequence of RF channels allocated for the use of low-power RF transmissions.
  • the processor When a signal is detected in the current channel, the processor ceases scanning, hold the present channel, and proceeds to step 42.
  • step 42 the receiver waits to detect the start sequence of a cue signal. If no start sequence is detected within a predetermined time, then the processor returns to scanning mode m step 40 When a start sequence is detected, the
  • transmitter identifier, the link data, and the profile identifier are buffered by the receiver and passed to the processor.
  • the processor then proceeds to step 44.
  • step 44 the processor determines whether the transmitter identifier matches any recently received cue signals from the transmitter.
  • the processor maintains a list in memory of transmitter identifiers from which cue
  • step 46 the processor proceeds to step 46.
  • step 46 the processor decodes the profile identifier and compares it to a pre-selected personal profile of the user of the portable data terminal.
  • the processor decodes the profile identifier and compares it to a pre-selected personal profile of the user of the portable data terminal.
  • step 46 determines whether match is found between the profile data and the stored personal profile. If, in step 46, no match is found between the profile data and the stored personal profile, then the processor returns to step 40. If a match is found, the processor proceeds to step 48.
  • step 48 the processor determines whether the user has selected an
  • immediate display mode of operation or a storage mode. These two modes of operation are provided so that the user may select to be alerted to the receipt of incoming cue signals determined to be relevant, or the user may alternatively select to review incoming messages at a later time. If the user has selected storage mode, the processor proceeds to step 50, wherein the link information is stored for later review, and the unit returns to scanning mode. If the user has selected immediate display mode, then the processor proceeds to step 52
  • step 52 the processor sends an hypertext transfer protocol (HTTP) request, via CDMA interface 20, to ret ⁇ eve information from the server 38 connected to the internet 28
  • HTTP hypertext transfer protocol
  • Such information may include textual or graphic mformation, for example a web page containing links to further information, or a single graphic image.
  • step 54 the HTTP request is fulfilled, and the retneved information is presented on the display 12. The user may further interact
  • One application of the present invention is to provide spatially dependent and relevant advertising information to the user.
  • Another application is the contextually relevant dist ⁇ bution of time, location and/or date-relevant information such as coupons, circulars, trading cards, lottery tickets and registration forms
  • the user may have indicated in her personal profile that she has an interest in home improvements.
  • a contractor may be performing work m the user's vicinity, about which the user may not be aware.
  • such a contractor may also locate a transmitter of the type desc ⁇ bed herein, at the site where such work is being performed
  • the transmitter may be configured to generate a cue signal wherein the link portion includes a Universal Resource Locator (URL) specifying the location of a web page on the internet where photographs, other information about the work in progress, or about the contractor's services generally, may be obtained
  • URL Universal Resource Locator
  • the portable data terminal 10 of the user will receive the
  • the portable data terminal will further detect a match between the contractor's profile identifier, and the user's co ⁇ esponding personal profile indicating her interest in home remodeling. Hence, as the user comes into the vicinity of the location where work is being performed by the contractor, the user's portable data terminal 10 will retrieve the relevant link from the cue signal, by which the user may be immediately informed of the
  • the remote server may be configured to provide the data terminal 10 with an index of further links to information pertaining to other relevant real-world locations of potential interest to the user.
  • the step 44 in the procedure described above can be modified to allow repetitive transmissions from the data terminal 10 to obtain data from the remote server. In this manner, the remote server can monitor the length of time during which the data terminal is co-located within the
  • Subsequent links received by the data terminal 10 on the basis of lengthened contextual involvement can replace the prior-received links in the memory of the data terminal in association with that context.
  • the portable data terminal 10 is enhanced with a low-power RF receiver 30 for receiving cue signals from low-power RF transmitters.
  • the portable data terminal itself may be further enhanced with a low-power RF transmitter 31, connected with the antenna 32 and with the processor 16. Du ⁇ ng scanning mode, as discussed above in connection with step 40 of FIG. 3, the
  • processor may transmit, via the transmitter 31, a cue signal containing a start sequence; a transmitter identifier, a link to pre-selected contextually dependent information about the user, such as may be stored on a subsc ⁇ ption basis on the user's internet server 39; and a profile identifier classifying the information
  • each user of the device is capable of effectively transmitting information pertaining to himself or herself, while also receiving information from others with whom the user comes into physical proximity.
  • the scanning step 40 may operate as follows.
  • the processor first tunes to an initial channel of the RF receiver 30 and determines whether the channel is quiet. If there is no activity on the channel, the processor transmits, via the transmitter 31, a selected number of repetitions of the user's cue signal. Then, the
  • processor resumes scanning the available channels, pausing to transmit the cue signal whenever a quiet channel is found.
  • the portable data terminals 10 will ultimately become aware of the presence of similar such devices in the immediate area, and will ultimately find a
  • a member of a fraternal organization may desire to signal his presence in the vicinity of another member of the fraternal organization, and may additionally or alternatively desire to provide information about his law practice to individuals who have indicated an interest in seeking legal services. In order to serve such
  • the link portion of a cue signal can be configured to point to a "gateway" web page stored on the user's server containing further links thereon, and organized according to profile identifier codes.
  • the link portion of the cue signal transmitted by the fraternity is the link portion of the cue signal transmitted by the fraternity
  • the processor of the portable data terminal 10 in constructing and transmitting the HTTP request desc ⁇ bed herein above in step 52 , would append the relevant code portion of the profile identifier which caused a match in
  • step 46 the processor would ret ⁇ eve the gateway page, and then proceed to ret ⁇ eve the link on that page co ⁇ espondmg to the matching portion of the profile identifier which t ⁇ ggered ret ⁇ eval of the page.
  • Such a functionality may be provided as just desc ⁇ bed, or by transmitting the matching portion of the
  • CGI common gateway interface
  • the cue signal such as that produced by a data terminal 10 or by the transmitter 34 in order to signal presence in a particular area, may be reduced to a single unique identification code.
  • filte ⁇ ng of relevant information based on a stored personal profile can be earned out by the server 38, which can store the relevant personal profile data for each user Whenever a data terminal then receives a cue signal containing a unique identification code, the terminal first matches the code against recently
  • the data terminal transmits a message to the server indicating receipt of the code.
  • the server matches the code to an index of potential links associated with the received code, and further matches the stored personal profile information of the user against the list of potentially relevant links stored in association with the received code. If a link
  • the personal profile data stored at server 38 can be accessed and customized by the respective users m order to establish
  • the transmitter 34 may be a passive radio-frequency identification device, such as a radio-frequency identification (RFTD) tag.
  • RFTD radio-frequency identification
  • the data terminal 10 is configured, in such an embodiment, to pe ⁇ odically transmit a probe signal via
  • FIG 4 An illustrative example of an application in which RFID tags may be employed to provide a cue signal for a data terminal 10 to obtain remotely stored data is shown in FIG 4
  • An object such as a wedding portrait 60
  • the portrait is provided with an RFTD tag 62 embedded in the frame
  • the RFTD tag 62 may be of the type in which a plurality of RF resonators is embedded therein in order to respond to an RF probe signal by emitting a combination of RF frequencies that is uniquely associated with that tag 62.
  • the data terminal 10 is configured to pe ⁇ odically emit an RFTD probe signal 64 and to
  • the data terminal 10 receives the resulting resonant signal from the RFTD tag 62 as a cue signal uniquely identifying that tag 62.
  • the data terminal 10 transmits the corresponding coded identification
  • server 66 to server 66 via the internet 68.
  • the server 66 is provided with a connection to a database 70 of RFTD
  • each RFTD code is associated with a hypertext link to an index of available information pertaining to the portrait 60.
  • the server obtains the corresponding hypertext link and transmits the link to the data terminal 10 for immediate access or for later ret ⁇ eval as desc ⁇ bed above.
  • the hypertext link may correspond to a web page
  • the page may identify "John and Martha's Wedding Portrait" as a contextual key which t ⁇ ggered ret ⁇ eval of the page by the data terminal, and can provide interactive links to the vanous informational aspects which have been associated with the portrait, such as links to the caterer, bndal shop, and travel agent involved in the wedding. If the user is in immediate ret ⁇ eval mode, the user may follow those links to obtain information on any aspect of the wedding in which the user is interested.
  • the data terminal may maintain a stack of links that have been received du ⁇ ng the course of the user's travels for later review.
  • a stack 74 is illustrated in FIG. 6.
  • the stack 74 may comp ⁇ se a context field 76 identifying the context of each link, a
  • the stack may be represented to the user as a table of the form
  • the user may scroll through the received links and be reminded of the context in which each link was received.
  • the user may be provided with the title fields of the ret ⁇ eved links such as "John and Martha's Wedding Portrait” and "Home on Oak Street” adjacent to actuable links which the user may follow in order to browse what information has been associated with the ret ⁇ eved contextual cue signals.
  • data from the spatial/temporal field associated with initial reception of the link may be passed as a parameter to the remote server
  • the remote server can be configured to select information provided in response on the basis of the location and/or time at which the link was initially
  • the portrait 60 may comp ⁇ se an active display terminal which is connected to receive and to display digital images and/or text
  • cue signal data may be encoded into a
  • the cue signal transmitted at any given moment will relate to the image being displayed at the display terminal.
  • RFTD tag cue signal generators Another application of RFTD tag cue signal generators is to provide interactive communication with other users who have encountered the same spatial context. For example, a restaurant table equipped with such a tag can be effectively configured as a portal to information about the restaurant and to other
  • the data terminal When the data terminal receives the RFTD cue signal, it then transmits the RFTD code to the server 66.
  • the server 66 transmits a link co ⁇ espondmg to the restaurant table, for example, a hypertest link to an interactive menu.
  • Such an interactive menu may include a wine list providing detailed information about the available wme selections and the associated vineyards.
  • the menu ret ⁇ eved by the user's terminal based upon the user's proximity to the table, provides a convenient way of updating the restaurant menu to include daily specials, and may provide advertising revenue to the restaurant by serving as a gateway to advertising information for the vineyards or other producers of goods served at the restaurant
  • association with the restaurant RFTD tag may additionally include a pointer to an interactive message board where users may read and/or post messages pertaining to their expe ⁇ ence at that table, such as their reviews of vanous menu offe ⁇ ngs Additionally, the message board may store and provide links to the personal profile data associated with each user, such that the present occupant of the table may obtain relevant information associated with previous occupants of the table
  • the link to the table's message board may be stored in the link retrieval stack along with an appropriate contextual identifier such as, "Table 10 at the Cyber cafe".
  • hypertext links to data are retrieved on the basis of locational proximity to a cue signal transmitter, whether the transmitter is an active transmitter or passive RFTD tag.
  • the remote server may be configured to store an identification of the location of the
  • a data terminal will receive that user's cue signal when the respective users are in physical proximity, but it would be desirable to obtain information about where the exchange of cue signals
  • GPS Global Positioning System
  • Data terminal 80 is provided with a GPS receiver 2 which receives a GPS
  • the satellite signal 84 and decodes the GPS satellite signal 84 in order to provide the data terminal 80 with the present geographical position of the data terminal 80.
  • the data terminal 80 is programmed to respond to the GPS positional signal by
  • the position monitoring server 90 maintains a current record of the geographical positions of users.
  • the server 90 also maintains a user database 92 containing user-identifications and user personal preference profiles, including hypertext links established by the users in association with their personal preferences.
  • the server 90 is provided with a location database 94 in which particular geographical locations can be associated with data identifying the location and/or with indices of links to further information associated with the location.
  • the associated link is sent to the data terminal 80.
  • the contractor performing home improvement work at a particular location may have a link to information concerning the work and/or the contractor's services associated in the location database 94 with the location at which the work is being performed
  • the server 90 will send the link corresponding to that location to the user's terminal.
  • the user's terminal will obtain and display the relevant information
  • the user's terminal In delayed ret ⁇ eval mode, the user's terminal will store the link in association with an identification of the location at which ret ⁇ eval of the link was activated When the user later retneves information from the server, the stored location identification, as well as the date and time of receipt, can be passed back to the
  • the server as a HTPP request parameter.
  • the server can be configured to provide a customized based on the location, date.
  • use of the GPS system can provide for interactive exchange of data between user terminals, by enabling the server to mediate such exchange based on detection of multiple users within a predetermined geographical proximity to each other. For example, the position of a second user equipped with a similar data terminal 96 will also be monitored by the server 90. Whenevei the server 90 determines that two users are within a predetermined proximity to each other, the server 90 retrieves the respective personal profiles of the users and determines whether there is a matching category of common interests between the
  • the server transmits the lmk(s) to each user which correspond to the matching profile entry If the user is operatmg in immediate retrieval mode, the user's data terminal will fetch the relevant information, and be immediately alerted to the proximity of the other user associated with that information If the user is operating in delayed ret ⁇ eval mode, then the data terminal will store an identification of the user's location in
  • an information delivery system is herein desc ⁇ bed in which a mobile portable data terminal is configured to receive a cue signal associated with a location or with proximity of a cue signal generator (whether a fixed cue signal generator or a mobile cue signal generator, such as another terminal).
  • the cue signal has been desc ⁇ bed as comp ⁇ sing an active RF signal, a passive resonant signal issued in response to
  • receipt of the cue signal tnggers retrieval of remotely stored data associated with the identity or location of the cue signal generator.
  • the information retneval process can be supplemented by personal profile data to enhance the relevance of the spatially
  • the cue signal may be provided by other physical phenomena, such as by audio or chemical sensing transducers connected with the portable data terminal.
  • the portable data terminal may be
  • a microphone for monito ⁇ ng incoming audio signals in the vicinity
  • Such incoming audio signals may include encoded audio cue signals, such as an encoded sub-band audio signal included in a radio broadcast, which will be recognized by the portable data terminal and t ⁇ gger retneval of
  • audio cue information can be inserted into a broadcast transmission in order to tngger retneval of contextually relevant information pertaining to the cu ⁇ ent audio program.
  • the portable data terminal may

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

L'invention concerne un appareil (10) portable d'extraction d'informations équipé d'un émetteur-récepteur (22) de données sans fil pour communiquer avec un réseau informatique éloigné (28). Ledit appareil (10) comporte également un circuit récepteur (30) interagissant avec un émetteur local (34). L'appareil (10) est programmé pour répondre à l'émetteur local (34) par l'extraction, sur le réseau (28) de données, d'informations pertinentes à la localisation ou à l'identité de l'émetteur local (34). Dans un autre mode de réalisation, l'appareil comprend des moyens de localisation de position indépendants, notamment un récepteur GPS (Global Positioning System) (82) destinés à déterminer la localisation de l'appareil (10) et à extraire les informations du réseau (28).
PCT/US2001/006112 2000-03-03 2001-02-27 Extraction d'informations sur un reseau eloigne en fonction du contexte spatial WO2001067265A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001239883A AU2001239883A1 (en) 2000-03-03 2001-02-27 Retrieval of information from a remote network based on spatial context

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US18679800P 2000-03-03 2000-03-03
US60/186,798 2000-03-03
US55767400A 2000-04-25 2000-04-25
US09/557,674 2000-04-25

Publications (1)

Publication Number Publication Date
WO2001067265A1 true WO2001067265A1 (fr) 2001-09-13

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Application Number Title Priority Date Filing Date
PCT/US2001/006112 WO2001067265A1 (fr) 2000-03-03 2001-02-27 Extraction d'informations sur un reseau eloigne en fonction du contexte spatial

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AU (1) AU2001239883A1 (fr)
WO (1) WO2001067265A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006010271A1 (fr) * 2004-07-28 2006-02-02 Primaci Solutions Inc. Procede et systeme pour extraire une information relative a une localisation de dispositifs sans fil a codage d'identification par radiofrequence (rfid)
US7227498B2 (en) * 2001-11-05 2007-06-05 Qualcomm Incorporated Wireless coordination and management system
EP1556965A4 (fr) * 2002-10-31 2011-06-22 Nokia Corp Procede et systeme pour selectionner des articles de donnees pour des demandes de service
USRE48868E1 (en) 2003-10-16 2021-12-28 Nokia Technologies Oy Terminal, method and computer program product for interacting with a signaling tag

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Publication number Priority date Publication date Assignee Title
US5214793A (en) * 1991-03-15 1993-05-25 Pulse-Com Corporation Electronic billboard and vehicle traffic control communication system
US5559520A (en) * 1994-09-26 1996-09-24 Lucent Technologies Inc. Wireless information system for acquiring location related information
US5938721A (en) * 1996-10-24 1999-08-17 Trimble Navigation Limited Position based personal digital assistant

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214793A (en) * 1991-03-15 1993-05-25 Pulse-Com Corporation Electronic billboard and vehicle traffic control communication system
US5559520A (en) * 1994-09-26 1996-09-24 Lucent Technologies Inc. Wireless information system for acquiring location related information
US5938721A (en) * 1996-10-24 1999-08-17 Trimble Navigation Limited Position based personal digital assistant

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7227498B2 (en) * 2001-11-05 2007-06-05 Qualcomm Incorporated Wireless coordination and management system
EP1556965A4 (fr) * 2002-10-31 2011-06-22 Nokia Corp Procede et systeme pour selectionner des articles de donnees pour des demandes de service
USRE48868E1 (en) 2003-10-16 2021-12-28 Nokia Technologies Oy Terminal, method and computer program product for interacting with a signaling tag
WO2006010271A1 (fr) * 2004-07-28 2006-02-02 Primaci Solutions Inc. Procede et systeme pour extraire une information relative a une localisation de dispositifs sans fil a codage d'identification par radiofrequence (rfid)
US7397358B2 (en) 2004-07-28 2008-07-08 Aftercad Software Inc. Method and system for location-centric information retrieval from wireless devices using RFID coding

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