11.
    发明专利
    未知

    公开(公告)号:DE69632425D1

    公开(公告)日:2004-06-17

    申请号:DE69632425

    申请日:1996-03-08

    Applicant: IBM

    Abstract: A variable bandwidth wireless air-link communication system allows an end-user communicating device, e.g. a cellular phone (101), computer or facsimile, to request the allocation and aggregation of available air-link communication channels for the wireless transmission of messages to and from a mobile end-user communication subscriber unit, e.g. a cellular telephone or portable computer (108), so as to increase the speed of wireless transmission. The system uses a channelized communication radio (103) and a programmed microprocessor (105) for locating, reserving and aggregating available air-link channels and for transmitting messages between the communication devices.

    Method for providing privately viewable data in a publicly viewable display

    公开(公告)号:GB2360414B

    公开(公告)日:2004-05-19

    申请号:GB0100697

    申请日:2001-01-11

    Applicant: IBM

    Abstract: A method for securely providing privately viewable data in a publicly viewable display can include interspersing private data frames among public data frames according to a sequencing pattern. A syncstream can be encoded based upon a syncstream mask. More particularly, the syncstream can specify when to activate shutters in a set of active glasses in synchronization with the sequencing pattern. Notably, an encryption key pair can be generated having a public key and a private key. Using the public key, the syncstream mask can be encrypted and forwarded to a pair of active glasses. Once received in the active glasses, the encrypted syncstream mask can be decrypted with the private key. Finally, the decrypted syncstream mask can be applied to the encoded syncstream to determine when to activate the shutters in the active glasses.

    13.
    发明专利
    未知

    公开(公告)号:AT257992T

    公开(公告)日:2004-01-15

    申请号:AT97308850

    申请日:1997-11-04

    Applicant: IBM

    Abstract: A conference server system, for internal use in the public switched telephone network (PSTN), links to public data communication networks (e.g. the Internet) for distributing computer displayable data between participants in voice telephone conferences. The server system includes a computer sub-system for storing data generated by the participants and distributing the data in coordination with voice presentations of respective participants. Data so stored and distributed includes computer-displayable data. Other data handled by the computer subsystem represents commands and functional requests issued by participants which pertain to the handling of computer-displayable data and voice parameters of the conference. conference participants, having separate and concurrent access to both the PSTN and the data network, receive and view computer-displayable data prepared by one of the participants in coordination with the respective voice conference. The conference server system connects to voice conference management resources of the PSTN in a manner enabling the server system to control voice parameters of a voice conference in response to data requests received from participants (e.g. requests from hearing-impaired participants for enhanced audio service), as well as enabling the conference management resources to control functions performed in respect to distribution of displayable data in response to spoken requests uttered by the participants, when the telephone system contains appropriate speech recognition equipment.

    MULTIMEDIA CONFERENCING USING PARALLEL NETWORKS

    公开(公告)号:CA2223845C

    公开(公告)日:2002-05-07

    申请号:CA2223845

    申请日:1997-12-05

    Applicant: IBM

    Abstract: A conference server system, for internal use in the public switched telephon e network (PSTN), links to public data communication networks (e.g. the Internet) for distributing computer displayable data between participants in voice telephone conference s. The server system includes a computer sub-system for storing data generated by t he participants and distributing the data in coordination with voice presentati ons of respective participants. Data so stored and distributed includes computer-displayable d ata. Other data handled by the computer subsystem represents commands and functional re quests issued by participants which pertain to the handling of computer-displayable data and voice parameters of the conference. Conference participants, having separate and c oncurrent access to both the PSTN and the data network, receive and view computer-disp layable data prepared by one of the participants in coordination with the respective voice conference. The conference server system connects to voice conference manage mentresources of the PSTN in a manner enabling the serve r system to control voice parameters of a voice conference in response to data requests received from participants (e.g. requests from hearing-impaired participants for enhanced audio service ), as well as enabling the conference management resources to control functions performed in respect to distribution of displayable data in response to spoken requests uttered b y the participants, when the telephone system contains appropriate speech recognit ion equipment. Telephone system conferences utilizing the present conference ser ver system have the advantage of being usable to support voice-only and/or data-only pa rticipants (participants respectively linked to only the voice or data distribution par ts of a conference session), as well as to provide conference service between exactly two parti cipants which may be more effective than comparable services that the same two participant s would obtain using a direct dial-up telephone connection for voice and a public da ta network connection completely isolated from the voice conference management resource s of the PSTN to exchange data.

    A communication network and method of operation for real time user selection of voice and/or data paths in the network

    公开(公告)号:GB2326792B

    公开(公告)日:1999-12-01

    申请号:GB9805384

    申请日:1998-03-16

    Applicant: IBM

    Abstract: A user through a personal computer, in real time, controls the activation and selection of voice and data transmission paths in a communication network independent of network profiles. The network includes a public switched telephone network and a data network, e.g. the Internet for voice and/or data transmissions over either the voice or data networks. In the network, a voice terminal and a computer terminal are coupled to a shared voice and data terminal. A digital subscriber line access multiplexer is coupled to the shared voice and data terminal; the data network through a client server interface, and a voice network through an intelligent switch. The client server interface includes programmable stored data descriptive of network-authorized data and voice functions and transmission paths in the voice and data networks. The interface is linked to the multiplexer and switch for transmitting signaling messages directing traffic to the voice and data networks in accordance with the stored data. The computer terminal displays menus obtained from the client server which enable the user, in real time, to activate and select voice and/or data transmission paths through either the voice and/or data networks independent of pre-defined network profiles and/or traditional traffic assumptions.

    Estimating the location of a mobile unit for emergency call assistance

    公开(公告)号:GB2316580A

    公开(公告)日:1998-02-25

    申请号:GB9712135

    申请日:1997-06-12

    Applicant: IBM

    Abstract: The location of a mobile unit 20 (e.g. cellular telephone, 2-way pager) making an emergency call is estimated by measuring the signal strength received at a plurality of antennas linked to base stations. Each measurement is sent through network control to a computer. The computer forms a circle 30-33 around each antenna with radius derived from signal strength received at that antenna. The intersection points of the circles are used to define a small area in which the mobile is likely to be found. This area is communicated to an emergency assistance centre together with related information such as an area map. An operator at the centre can despatch rescue personnel and ask the emergency caller to confirm the location by identifying features which are shown on the area map. Steerable antennas may be used to provide vector locations and antennas unable to receive the signal may provide zone exclusion information. The mobile unit may use a command channel to report back signal strengths received from antennae. These received signals may be progressively decreased and the point of loss of contact used to determine distance from the antennae. If a caller has more than one type of mobile unit then both may be used to calculate a search area. The method may also be used to locate stolen objects.

    USER SPECIFIED PARALLEL DATA FETCHING FOR OPTIMIZED WEB ACCESS

    公开(公告)号:CA2424610C

    公开(公告)日:2008-09-02

    申请号:CA2424610

    申请日:2001-11-09

    Applicant: IBM

    Abstract: A hypermedia document display method can include presenting hypermedia content, the hypermedia content hyperlinks to additional hypermedia content; storing selected ones of the hyperlinks in a delayed viewing list; and, caching hypermedia content associated with the stored hyperlinks during the presenting step. The method can further include reconfiguring the stored hyperlinks to the point to the cached hypermedia content. The presenting step can include displaying web content in a Web browser. In that case, the Web content can contain hyperlinks to additional Web content. The presenting step also can include playing back multimedia content in a multimedia content player. Finally, the presenting step can include displaying audiovisual television content combined with hypermedia content in a television set.

    18.
    发明专利
    未知

    公开(公告)号:DE69727202D1

    公开(公告)日:2004-02-19

    申请号:DE69727202

    申请日:1997-11-04

    Applicant: IBM

    Abstract: A conference server system, for internal use in the public switched telephone network (PSTN), links to public data communication networks (e.g. the Internet) for distributing computer displayable data between participants in voice telephone conferences. The server system includes a computer sub-system for storing data generated by the participants and distributing the data in coordination with voice presentations of respective participants. Data so stored and distributed includes computer-displayable data. Other data handled by the computer subsystem represents commands and functional requests issued by participants which pertain to the handling of computer-displayable data and voice parameters of the conference. conference participants, having separate and concurrent access to both the PSTN and the data network, receive and view computer-displayable data prepared by one of the participants in coordination with the respective voice conference. The conference server system connects to voice conference management resources of the PSTN in a manner enabling the server system to control voice parameters of a voice conference in response to data requests received from participants (e.g. requests from hearing-impaired participants for enhanced audio service), as well as enabling the conference management resources to control functions performed in respect to distribution of displayable data in response to spoken requests uttered by the participants, when the telephone system contains appropriate speech recognition equipment.

    USER SPECIFIED PARALLEL DATA FETCHING FOR OPTIMIZED WEB ACCESS

    公开(公告)号:CA2424610A1

    公开(公告)日:2002-05-23

    申请号:CA2424610

    申请日:2001-11-09

    Applicant: IBM

    Abstract: A hypermedia document display method can include presenting hypermedia content, the hypermedia content hyperlinks to additional hypermedia content; storing selected ones of the hyperlinks in a delayed viewing list; and, caching hypermedia content associated with the stored hyperlinks during the presenting step. The method can further include reconfiguring the stored hyperlinks to the point to the cached hypermedia content. The presenting ste p can include displaying web content in a Web browser. In that case, the Web content can contain hyperlinks to additional Web content. The presenting ste p also can include playing back multimedia content in a multimedia content player. Finally, the presenting step can include displaying audiovisual television content combined with hypermedia content in a television set.

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