International Business Machines Corporation

Chun Ying

Chen Wang

Wei Lu

Song Song

Qing Bo Wang

Xiao Yan Chen

Yi Bo Zhang

Yanfeng Zhu

Wei Li

Bo Yang

Xiao Xi Liu

Rong Fu

Zhe Xiang

Wei Shang

Hua Wang

Hao Wang

Dong Hui Liu

Yin Xia

Lin Luo

Shih-Gong Li

Yan Zhu

Huayong Wang

Ken Chen

Ping Pan

Jin Ling

Li Wei

Ben Bo Yang

Jin Z Zhou

Yao Fu Rong

Jin Zhou

Jun Lj Liu

Yan Feng Zhu

Wei Xiong Shang

A method for determining travel time of a vehicle on a road, wherein the vehicle is operable within a mobile communication network, comprising: collecting historical communication events of a mobile user in order to obtain travel samples, wherein the historical communication events indicate when the mobile user travelled along a monitored road; determining a cell handover sequence from the historical communication events; determining from the cell handover sequence, one of more road segments of the monitored road; determining the travel time of the one or more road segments according to the travel time samples; selecting, for an undetermined road segment of the monitored road for which the real-time travel time is not determined from the collected historical communication events, a candidate mobile user that is most likely to appear on the undetermined road segment; actively positioning the candidate mobile user to obtain positioning information; and returning to the step of collecting communication events of a mobile user currently on a monitored road with the active positioning as one communication event for the candidate mobile user, to determine the real-time travel time of the undetermined road segment.

Method and apparatus for traffic management

A method, apparatus and computer program product for spam message detection. The method includes collecting time domain transmission characteristic of a message source; computing frequency domain transmission characteristic of the message source with the time domain transmission characteristic of the message source; and identifying the message source to be a spammer in response to the frequency domain transmission characteristic of the message source satisfying predefined criteria; wherein the steps of the method are carried out using a computer device. An apparatus and computer program product for carrying out the above method is also provided.

Method and apparatus for spam message detection

A method, apparatus, system, and computer readable medium for authenticating the identity of a caller. An authentication device authenticates a caller's identity based on received information of the caller and an identifier generation device generates an identifier containing the caller's identity. The authentication information is supplied to a mobile telephone user acting as a callee. Therefore, the callee knows the caller's identity, thereby providing a secure delivering channel.

Authenticating identity of caller

A method and apparatus for spam short message detection. The method includes obtaining sending characteristics of at least two suspected short message sources, judging whether the two suspected short message sources have similar sending characteristics, and determining the two suspected short message sources as spammer if they have similar sending characteristics. A spammer that makes multiple short message sources send short messages alternately can be detected through similar sending characteristics of the short message sources.

Detecting spam short messages based on sending characteristics

A VoIP adapter for POTS a phone comprises: a POTS phone connector, an IP network interface, two sets of signaling senders, signaling receivers, media senders and media receivers for the POTS phone and the IP network respectively, and a controller for controlling the operations of above components. The VoIP adapter enables the user to carry out VoIP communications using a normal POTS phone and further enables use of advanced VoIP functions via the normal POTS phone, such as Call Hold, Call Transfer, Ad Hoc Conference, etc.

VoIP adapter, IP network device and method for performing advanced VoIP functions

Provides a service providing device and method enabling a user to accept the service by utilizing the capabilities of several various devices. At least one physical device is selected for the user based on the service requirement. The user accepts the service via the selected physical device or devices. The invention 'hides' the physical devices by using a virtual device to provide the service for users. Furthermore, the invention provides a 'tailored' virtual device based on the environment around the user, the favorite of user and the requirements of the service, and may provide to the user the &#x201c;tailored&#x201d; information suitable for the user. The operating environment of the virtual device according to the invention is dynamically changeable according to the environment around the user, the favorite of user and the requirements of the service. Thus, a seamless service may be provided to the user.

User-centric service providing device and service providing method

A method for discovering topology in an SIP network is disclosed. According to the method, the SIP network is divided into domains governed by corresponding SIP proxies. A management system creates a topology agent for each SIP-domain and registers it with the governor proxy of each SIP-domain. Each topology agent generates topology-exploring messages to other agent and accumulates topology-exploring messages from other agents, gather routing information of the SIP network based on the collected topology-exploring messages to deduce topology of the SIP network.

Method and system for topology discovery in an SIP network

A method for providing virtual membership cards whereby by a card broker generates a virtual membership card based on the information of a card issuer and the information of a user and sends the virtual membership card to the mobile terminal of the user though a communication network. A virtual membership card system includes a membership management module, for managing card issuer account information, card user account information, and the virtual membership card information and a virtual membership card management module, including a card generation module, for generating a virtual membership card based on the information of the card issuer and the information of the user and a card distribution module, for sending the virtual membership card to the mobile terminal of the user though a communication network. With the present invention, merchants can easily issue, validate and maintain their membership cards, and the user may retrieve, use and manage his/her membership card at any place and at any time.

Virtual membership card system and providing method, and virtual membership card reading method

The invention provides environment aware messages delivery systems, apparatus and methods. In example embodiments the system and method automatically deliver messages to the user based on the environment around the user. In the system and method, a portable message redirection agent cooperates with a message delivery service manager in the environment to discover available message delivery service, and sets message forwarding options without the user's operation. The system and method of the invention can make full use of the existing message redirection mechanisms in more flexible manner.

Environment aware message delivery

A shared multi-user IP telephone device for receiving, based on SIP, calls transmitted over VoIP network, a system using such a device and method thereof. The shared multi-user IP telephone device includes a storage device for storing user profiles, an ID extraction portion for receiving from the VoIP network a SIP packet including at least the callee's ID, and extracting the ID contained in the SIP packet, and a personalized feature presentation portion for searching in the storage device for the user profile corresponding to the ID according to the extracted ID for presenting the corresponding personalized feature according to the search result. Thus it is possible for everyone using such a phone to receive directly the call for him/herself without anyone else or other device forwarding the call.

Multiple virtual telephones sharing a single physical address

Growing community of inventors

Beijing, China

Chun Ying