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WO1999046920A1 - Systeme d'exploration du web utilisant un telephone classique - Google Patents

Systeme d'exploration du web utilisant un telephone classique Download PDF

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Publication number
WO1999046920A1
WO1999046920A1 PCT/US1999/001751 US9901751W WO9946920A1 WO 1999046920 A1 WO1999046920 A1 WO 1999046920A1 US 9901751 W US9901751 W US 9901751W WO 9946920 A1 WO9946920 A1 WO 9946920A1
Authority
WO
WIPO (PCT)
Prior art keywords
telephone
audio
command
world wide
wide web
Prior art date
Application number
PCT/US1999/001751
Other languages
English (en)
Inventor
Michael J. Wynblatt
Stuart Goose
Original Assignee
Siemens Corporate Research, Inc.
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 Siemens Corporate Research, Inc. filed Critical Siemens Corporate Research, Inc.
Priority to EP99904341A priority Critical patent/EP1062798A1/fr
Publication of WO1999046920A1 publication Critical patent/WO1999046920A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/487—Arrangements for providing information services, e.g. recorded voice services or time announcements
    • H04M3/493—Interactive information services, e.g. directory enquiries ; Arrangements therefor, e.g. interactive voice response [IVR] systems or voice portals
    • H04M3/4938—Interactive information services, e.g. directory enquiries ; Arrangements therefor, e.g. interactive voice response [IVR] systems or voice portals comprising a voice browser which renders and interprets, e.g. VoiceXML
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/487—Arrangements for providing information services, e.g. recorded voice services or time announcements
    • H04M3/493—Interactive information services, e.g. directory enquiries ; Arrangements therefor, e.g. interactive voice response [IVR] systems or voice portals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
    • H04M2201/40—Electronic components, circuits, software, systems or apparatus used in telephone systems using speech recognition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
    • H04M2201/60—Medium conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal

Definitions

  • the present invention relates to interfacing with ' the world wide web and more particularly to browsing the world wide web using a telephone.
  • WWW World Wide Web
  • Traditional WWW browsers such as Netscape's Navigator and Microsoft' s Internet Explorer, offer complex visual renditions of WWW documents. These are not suitable for telephones because telephones lack sophisticated visual display mechanisms .
  • Some telephones have small visual displays and some vendors offer WWW browsers targeted to these limited displays. The best example of such a browser is Unwired Planet's UP.Browser. These systems are still dependent on a visual display, however, and thus are not usable on traditional telephones which have no visual display. 2
  • the Web-On-Call system from Netphonic allows telephonic access to the WWW by providing an audio rendering of WWW documents.
  • this system requires the WWW content-provider to modify, or pre- process, all of the content which they wish to make available.
  • Such a system is called a server-side solution and does not enable individual WWW users to browse to arbitrary WWW sites. Users may only browse sites that have the special modifications.
  • a client -side solution is needed, one which renders arbitrary WWW documents into audio on the fly.
  • the present invention is a system which employs the WIRE system and other components to allow browsing the WWW with a traditional telephone.
  • the system also enables access to e-mail.
  • This system works on the client-side, and thus requires no special preparation by the WWW content-provider. It uses only audio to render WWW documents and thus requires no visual display.
  • the traditional telephone is utilized to contact a host computer which has a voice-capable modem, a telephone-driven audio WWW browser (TAWB) and a connection to the Internet, called a network interface.
  • TAWB comprises a telephony interface, a digital voice processing module (DVP) , an interchange between the telephony interface and the DVP, an audio document renderer, a command and control module, and an Internet interface.
  • DVP digital voice processing module
  • the system contains a friendly server for storing information.
  • the system relies on the presence of the WWW which can be described as a collection of WWW servers connected to the Internet, an Intranet or an Extranet.
  • Figure 1 illustrates a block diagram of the present invention.
  • Figure 2 illustrates an overview of a telephone- driven audio WWW browser of the present invention.
  • Figure 3 illustrates a block diagram of the command and control module of the present invention.
  • Figure 4 illustrates an example of a touch-tone to user command map of the present invention.
  • Figure 5 illustrates the high level operation of the command and control logic of the present invention.
  • Figure 6 illustrates a block diagram of the main loop of the command and control logic of the present invention.
  • Figure 7 illustrates a block diagram of the digital voice processing module of the present invention. 4
  • Figure 8 illustrates a block diagram of the friendly server of the present invention.
  • Figure 9 illustrates an example of a CGI program.
  • Figure 1 shows the high-level architecture of the present invention.
  • the user of the system must have a telephone handset 10 that has touch-tone capability.
  • the telephone handset 10 may be a mobile telephone, such as a cellular telephone.
  • the user dials into a host computer system 12.
  • This host computer system 12 has a voice- capable modem 14, a telephone-driven audio WWW browser (TAWB) 16, and a connection to the Internet, called a network interface 18.
  • TAWB telephone-driven audio WWW browser
  • Typical network interfaces are Ethernet cards or modems.
  • the system contains a friendly server 20 for storing information.
  • the system relies on the presence of the WWW, which can be described as a collection of WWW servers 22 connected to the Internet.
  • the system works in the following manner.
  • the user employs his telephone handset to dial into the host computer.
  • the host computer's voice modem accepts the call and acts as an interface between the TAWB and the public telephone network.
  • the user then issues commands consisting of telephone touch-tones, spoken voice commands, or both.
  • the TAWB interprets these commands, downloads the appropriate WWW documents from the Internet and renders them to an audio stream.
  • the TAWB sends the audio stream, via the public telephone network, to the telephone handset where the user listens to it.
  • the user listens he or she may issue additional commands which the TAWB will capture and interpret.
  • the system allows hyperlinks to be followed, skips to be made forward and backward through the current document, and pauses in the rendering.
  • FIG. 2 shows a block diagram of the TAWB 16.
  • TAWB Telephone-driven Audio World Wide Web Browser
  • Figure 2 shows a block diagram of the TAWB 16.
  • the Internet interface 28 is to be distinguished from the network interface 18 shown in Figure 1 in the following manner.
  • the Internet interface 28 provides application level network protocols such as HTTP and FTP while the network interface (18 of Figure 1) provides lower level network protocols such as TCP/IP.
  • the command and control module (CCM) 27 directs the action of the other modules, interpreting user commands and directing the appropriate response.
  • the Internet interface 28 provides access to WWW servers, from where WWW documents are obtained and access to the friendly server.
  • the audio document renderer 26 converts structured documents from the WWW into an audio rendition. This rendition includes audio signals sent directly to the telephony interface 23, but consists primarily of a specially prepared structured text stream that is sent to the digital voice processing module (DVP) 25.
  • DVP digital voice processing module
  • the DVP module 25 converts the text stream to an audio "voice" stream and sends this to the telephony interface 23 by way of the DVP/telephony 6
  • the DVP 25 also converts voice commands received from the telephony interface 23 by way of the DVP/telephony interchange 24 into commands that are passed to the CCM 27.
  • the DVP/telephony interchange 24 is necessary to convert between the dissimilar formats used by the DVP module 25 and the telephony interface 23.
  • the telephony interface 23 captures and delivers audio streams and touch-tones to and from the public telephone network. The following will describe the TAWB 16 of the present invention in more detail.
  • the Internet interface 28 is responsible for providing application level network services to the CCM 27. Specifically, the Internet interface 28 must provide the following well known services.
  • Hypertext Transfer Protocol HTTP: This serves to download WWW documents from remote WWW servers and also to upload information back to the servers under some circumstances.
  • Post Office Protocol This serves to download e-mail documents from remote WWW servers.
  • File Transfer Protocol FTP: This serves to transfer files to and from the friendly server.
  • the Internet interface 28 takes its direction from the CCM 27 as described below. It returns all documents which it downloads to the CCM 27.
  • the CCM 27 directs the operation of the TAWB system 16.
  • a block diagram of the CCM 27 is shown in Figure 3.
  • the touch-tone to user-command map (TTUCM) 30 accepts touch-tone digits from the telephony interface and determines which user command they represent. As commands may consist of varying numbers of tones, the TTUCM 30 constitutes a finite-state machine in which receiving a touch-tone acts to move the machine along an edge.
  • TTUCMs are possible, depending on the set of commands which the TAWB is to support.
  • An example of a TTUCM 30 is shown in Figure 4. To reduce complexity, not all possible commands are shown. A complete TTUCM would be more complex but would follow the same principles.
  • the TTUCM if the first touch- tone is a 1, 2 or 3, the TTUCM decides that the command is "Follow”, “Skip Back”, or “Skip Ahead", respectively. If the first touch tone is 0, #, or *, the TTUCM accepts the next touch-tone and then uses this second tone as an index for either the "Get Favorite", "Set Favorite” or "Select from History List” commands, respectively.
  • the local flags cache 32 is a data-store that keeps a local copy of the addresses of documents that the user has flagged. The purpose of the flagging process is described below.
  • the local favorites cache 34 is a data- store that keeps a local copy of the addresses of the user's favorite WWW documents.
  • the history list 36 is a data-store which stores addresses of pages recently visited by the user, in the manner directed by the command and control logic 38. It contains a position pointer which marks one address as the current address.
  • the command and control logic (CCL) 38 directs the operations of the CCM.
  • Figure 5 shows the high-level operation of the CCL 38. Upon activation, the CCL 38 through the wait state module 50 is in a wait state.
  • the CCL directs the Internet interface to retrieve the user' s favorites from the friendly server through the Internet interface retrieval director 52. These favorites are then stored in the local favorites cache.
  • the CCL through the command and control enter module 54 enters the command and control main loop, which is described in detail below.
  • the CCL Upon receiving a quit command from the user via the TTUCM, the CCL directs the telephony interface to 8 terminate the telephone connection. This is performed in the telephony interface termination director 56.
  • the CCL directs the Internet interface to take the user favorites in the local favorites cache and store them on the friendly server. This is performed in the Internet interface store favorites director 58.
  • the main loop of the command and control logic is the normal operating logic for the TAWB system while it is in use.
  • Figure 6 shows a block diagram of the main loop.
  • the loop consists of two actions repeated continuously: first get a command, then execute that command.
  • Commands come either from the touch-tone to user-command map (TTUCM) 62 or from the voice to user-command map (VUCM) 64 of the DVP module (25 of Figure 2) .
  • TTUCM touch-tone to user-command map
  • VUCM voice to user-command map
  • DVP module 25 of Figure 2
  • the main loop acts asynchronously from the rest of the modules. This means that once the "wait for user command" 65 state is reached, new commands may be accepted and processed even if other modules have not finished their last assigned task. Notably, this means that the user may interrupt the rendering of a document with new commands, thus allowing a high degree of interactivity.
  • the CCL After receiving a command, the CCL determines which command it is 66. The following describes the handling of a set of relevant commands.
  • the term "URL" refers to the Uniform Resource
  • Locator which is an addressing standard used on the WWW.
  • Skip -Ahead Skip Back or Restart.
  • the CCM directs 67 the audio document renderer to adjust its rendering accordingly.
  • Reset Favorite N The CCM stores 68 the current URL in the local favorite cache at index N. This process overwrites the previous contents of index N in the local favorites cache.
  • follow Link The CCM gets 69 the URL of the current active link from the audio document renderer, directs 70 the Internet interface to retrieve the document stored at that URL, directs 71 the audio document renderer to render this document, and updates 72 the history list by adding the URL above the current position pointer and advancing the position pointer.
  • the CCM lookups 73 the URL stored in the local favorites cache at index N, directs 70 the Internet interface to retrieve the document stored at that URL, directs 71 the audio document renderer to render this document, and updates 72 the history list by adding the URL above the current position pointer and advancing the position pointer.
  • the CCM gets 74 the appropriate hyperlink from the history list, directs 70 the Internet 10
  • the interface to retrieve the document stored at that URL, directs 71 the audio document renderer to render this document, and updates 72 the history list by advancing or retreating the position pointer as appropriate.
  • Flag Current Page The CCM gets 75 the URL of the current document from the history list and stores it in the local flags cache.
  • ADR audio document renderer
  • WIRE accepts a structured document and outputs a text stream suitable for rendering by the text-to-speech synthesizer (TTS) component of the DVP.
  • TTS text-to-speech synthesizer
  • the text stream produced by the ADR is sent to the TTS component of the DVP.
  • This text stream is not necessarily linear, or ordered in the same way as the original WWW document, but instead the ADR may be directed by the CCM to send arbitrary parts of the 11
  • the CCM determines which part of the document to send based on the "navigation" commands sent by the user, such as "Skip Ahead” or “Skip Back”.
  • Systems such as WIRE may offer other "rendering modes" in which certain parts of a document are summarized or skipped based on the user's preferences.
  • ADR must provide the CCM with the "active link" when requested. This is the hyperlink corresponding to the anchor most recently rendered.
  • the digital voice processing module (25 of Figure 2) consists of two components as shown in Figure 7.
  • the text-to-speech synthesizer (TTS) 78 accepts marked up text from the ADR and generates waveform audio which is sent to the DVP/telephony interchange.
  • the voice recognizer component 79 accepts waveform audio from the DVP/telephony interchange and sends user command strings to the CCM.
  • SAPI Microsoft Speech API
  • SAPI interface there are many commercial packages available which can serve the role of the text- to-speech synthesizer, such as Lernout & Houspie's TruVoice, and of the voice recognizer, such as AT&T's Watson.
  • DVP/Telephony Interchange 24 of Figure 2
  • Many commercial DVP packages produce or consume audio data in a different format than can be accepted by computer telephony interfaces.
  • the job of the DVP/telephony interchange is to convert audio data from one format to another so that these two TAWB components can share the data. Since the audio is in the form of real-time streams, the format conversion must be fast and must be done on the fly. For example, if the sampling rate produced by the TTS engine 12
  • a TAWB PC needs an interface to the public telephone system. This interface essentially must allow the computer to control the modem which acts as the local telephony client. Specifically, the interface must be able to send and receive waveform audio and touch- tones and deliver them to both the TAWB system and the public telephony network in an understandable form.
  • many commercial modems provide software drivers which conform to Microsoft's Telephony API (TAPI) . Since the TAPI definition includes all of the services that the TAWB requires, these software drivers may serve the role of the telephony interface.
  • TAPI Microsoft's Telephony API
  • the friendly server (20 of Figure 1) is a repository for information that is accessible by any WWW-enabled device, including TAWB browsers and visual browsers. As some kinds of information are difficult to comprehend in an audio-only environment, the ability to share addresses with a visual browser can be seen as a required feature of an audio- only browser. 13
  • FIG 8 shows a block diagram of the friendly server 20.
  • the user favorites store 82 is a persistent data repository for addresses of the user' s favorite documents, that is, the documents he or she has chosen to associate with preset commands in the TAWB browser. The purpose of the user' s favorites is to allow the user to access certain sites quickly with a minimum of browsing.
  • the Internet interface for TAWB browser 84 allows the TAWB system to upload replacement favorites which may have been set by the user while using the TAWB system.
  • This interface is simply an FTP server as is known in the art.
  • the Internet interface for traditional browser 86 allows the user to modify his or her favorites while using a traditional WWW browser.
  • This interface consists of a CGI program within which the user can modify the favorites store and an HTTP server as is known in the art which allows the browser to access the CGI program.
  • An example of a suitable CGI program is shown in Figure 9. This program allows the user to modify the values of the favorites by typing new URL's in the boxes. Pressing the update button completes the modification. In this way, the user may easily transfer documents found with a traditional browser to his or her TAWB browser.
  • the user flags store 88 is a persistent data repository for the user's flagged URLs.
  • the purpose of the flags is to make documents found with the TAWB browser available to a traditional browser.
  • the Internet interface for TAWB browser 84 allows the TAWB system to upload addresses of documents which have been flagged by the user while using the TAWB system. This interface is simply an FTP server as is known in the art.
  • the addresses are stored in the form of a WWW document containing hyperlinks to the flagged documents.
  • the Internet interface for traditional browser 86 allows the user to view this document and follow the hyperlinks with 14
  • This interface is simply an HTTP server as is known in the art.
  • the present invention is a system which allows a user with an ordinary telephone to browse the World Wide Web.
  • the present invention is an improvement over prior art systems because any WWW documents can be obtained, not just documents that were specially prepared for audio access.
  • the present invention works with a traditional telephone and does not require the phone to have a visual display or special internal electronics.
  • the present invention is particularly valuable to people who need mobile access, are visually impaired, cannot afford browsers which require special hardware, or who work in environments where visual displays are not practical.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Computer And Data Communications (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

L'invention se rapporte à la possibilité d'accès au Web au moyen d'un téléphone classique permettant d'entrer en contact avec un ordinateur hôte qui dispose d'un modem vocal, d'une unité audio d'exploration du Web commandée par téléphone (TAWB) et d'une connexion à l'Internet. L'unité TAWB comporte une interface téléphonique, un module de traitement vocal numérique (DVP), une unité d'échange entre l'interface téléphonique et le DVP, un organe de restitution de documents sonores, une unité de commande et un module de contrôle, et une interface Internet. Ledit système comporte en outre un serveur convivial conçu pour le stockage d'informations. Ce système repose sur le fait que le Web peut être décrit comme une succession de serveurs Web reliés à l'Internet.
PCT/US1999/001751 1998-03-10 1999-01-28 Systeme d'exploration du web utilisant un telephone classique WO1999046920A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99904341A EP1062798A1 (fr) 1998-03-10 1999-01-28 Systeme d'exploration du web utilisant un telephone classique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3795198A 1998-03-10 1998-03-10
US09/037,951 1998-03-10

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WO1999046920A1 true WO1999046920A1 (fr) 1999-09-16

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Cited By (9)

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WO2001050453A3 (fr) * 2000-01-04 2002-01-31 Heyanita Inc Systeme de reponse vocale interactif
WO2001071481A3 (fr) * 2000-03-21 2003-01-16 Quack Com Systeme et procede permettant d'orienter des reponses d'utilisateurs dans un systeme de portail vocal internet pour determiner un article ou un service desire
EP1329829A2 (fr) * 2002-01-16 2003-07-23 mediaBeam GmbH Procédé d'acquisition et de distribution de données fournies par une page web
WO2002046959A3 (fr) * 2000-12-08 2003-09-04 Koninkl Philips Electronics Nv Reconnaissance vocale repartie pour acces a l'internet
SG98374A1 (en) * 2000-03-14 2003-09-19 Egis Comp Systems Pte Ltd A client and method for controlling communications thereof
EP1423968A1 (fr) * 2001-08-07 2004-06-02 Kirusa, Inc. Systeme et procede de mise en oeuvre de signets a modes multiples
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US7106837B2 (en) 2001-08-31 2006-09-12 Mitel Networks Corporation Split browser
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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001050453A3 (fr) * 2000-01-04 2002-01-31 Heyanita Inc Systeme de reponse vocale interactif
SG110999A1 (en) * 2000-03-14 2005-05-30 Comease Pte Ltd Client-server system for controlling internet browsing and method thereof
SG98374A1 (en) * 2000-03-14 2003-09-19 Egis Comp Systems Pte Ltd A client and method for controlling communications thereof
WO2001071481A3 (fr) * 2000-03-21 2003-01-16 Quack Com Systeme et procede permettant d'orienter des reponses d'utilisateurs dans un systeme de portail vocal internet pour determiner un article ou un service desire
US8874446B2 (en) 2000-03-21 2014-10-28 Mercury Kingdom Assets Limited System and method for funneling user responses in an internet voice portal system to determine a desired item or servicebackground of the invention
US8131555B1 (en) 2000-03-21 2012-03-06 Aol Inc. System and method for funneling user responses in an internet voice portal system to determine a desired item or service
WO2002046959A3 (fr) * 2000-12-08 2003-09-04 Koninkl Philips Electronics Nv Reconnaissance vocale repartie pour acces a l'internet
US8238881B2 (en) 2001-08-07 2012-08-07 Waloomba Tech Ltd., L.L.C. System and method for providing multi-modal bookmarks
EP1423968A1 (fr) * 2001-08-07 2004-06-02 Kirusa, Inc. Systeme et procede de mise en oeuvre de signets a modes multiples
EP1423968A4 (fr) * 2001-08-07 2006-08-09 Kirusa Inc Systeme et procede de mise en oeuvre de signets a modes multiples
US8571606B2 (en) 2001-08-07 2013-10-29 Waloomba Tech Ltd., L.L.C. System and method for providing multi-modal bookmarks
US7106837B2 (en) 2001-08-31 2006-09-12 Mitel Networks Corporation Split browser
EP1329829A2 (fr) * 2002-01-16 2003-07-23 mediaBeam GmbH Procédé d'acquisition et de distribution de données fournies par une page web
EP1329829A3 (fr) * 2002-01-16 2004-04-14 mediaBeam GmbH Procédé d'acquisition et de distribution de données fournies par une page web
US9069836B2 (en) 2002-04-10 2015-06-30 Waloomba Tech Ltd., L.L.C. Reusable multimodal application
US9489441B2 (en) 2002-04-10 2016-11-08 Gula Consulting Limited Liability Company Reusable multimodal application
US9866632B2 (en) 2002-04-10 2018-01-09 Gula Consulting Limited Liability Company Reusable multimodal application
US8670754B2 (en) 2006-05-05 2014-03-11 Waloomba Tech Ltd., L.L.C. Reusable mulitmodal application
US8213917B2 (en) 2006-05-05 2012-07-03 Waloomba Tech Ltd., L.L.C. Reusable multimodal application
US10104174B2 (en) 2006-05-05 2018-10-16 Gula Consulting Limited Liability Company Reusable multimodal application
US10516731B2 (en) 2006-05-05 2019-12-24 Gula Consulting Limited Liability Company Reusable multimodal application
US10785298B2 (en) 2006-05-05 2020-09-22 Gula Consulting Limited Liability Company Reusable multimodal application
US11368529B2 (en) 2006-05-05 2022-06-21 Gula Consulting Limited Liability Company Reusable multimodal application
US11539792B2 (en) 2006-05-05 2022-12-27 Gula Consulting Limited Liability Company Reusable multimodal application

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