Abstract: The invention provides an apparatus and a method for improving the control of access by a terminal device in a WLAN environment having an access point for determining whether the device utilizes an IEEE 802.1x protocol by the access point communicating to the device, a packet, whereby if the devices utilizes a IEEE 802.1x protocol the device appropriately responds and otherwise the access point determines that the terminal device protocol does not employ a IEEE 802.1x protocol and selects an authentication mechanism compatible with the terminal device. If the device is not an IEEE 802.1x client, an IP packet filtering is configured to redirect a user HTTP request to a local server, and when the HTTP requests are thereby redirected, the HTTP server presents the terminal device with information specifically related to the browser based authentication.

Abstract: A method is described for receiving a multicast in user devices in a network issuing a request to join a multicast group, identifying multicast data packets associated with the multicast group, monitoring transmissions of the multicast data packets to determine whether the identified multicast data packets are being transmitted in an already established unicast session and establishing a unicast session and processing multicast data packets if an already established unicast session does not exist A method is described for receiving a multicast transmission in user devices in a network establishing a unicast session with a dedicated terminal, identifying multicast data packets associated with a multicast group, monitoring transmissions of the multicast data packets and processing the multicast data packets by the dedicated terminal.

Abstract: A method and apparatus for managing a session key for allowing a mobile terminal to access a wireless local area network (WLAN). The invention provides for establishing a first secure channel between an access point and a virtual operator, and suggesting a session key to the virtual operator from the access point. A second secure channel is established between the virtual operator and a user, and the session key is sent to the user via the second secure channel upon successful user authentication. The mobile terminal accesses the WLAN using the session key.

Abstract: A method for distributing a multimedia content to at least two rendering devices, wherein said multimedia content comprises at least two elementary contents, the method comprises the steps of receiving first information including information indicating for each of said at least two elementary contents a destination rendering device and a starting time; for each rendering device associated with said multimedia content, sending corresponding information indicating starting time for at least one elementary content destined to the rendering device; receiving said multimedia content; and sending said at least two elementary contents of said multimedia content to their corresponding destination rendering devices based on information indicating destination rendering device for each of said at least two elementary contents.

Abstract: The present invention relates a bidirectional signal transmission apparatus and method, wherein said apparatus comprises a processor unit connected in signal communication with an Ethernet, an RF modulation/demodulation unit, and an RF frequency conversion unit connected in signal communication with a coaxial cable network. The data signal input from the Ethernet is modulated into standard IEEE802.11 signal by means of said signal processing unit and RF modulation/demodulation unit, and then down-converted from 2.4 GHz or 5.8 GHz standard IEEE802.11 signal to a range of 500 MHz to 2000 MHz, and preferably to a range of 900 MHz to 1200 MHz. The bidirectional transmission apparatus further includes a frequency band selector for selecting different frequency bands so as to broaden the bandwidth of the signal and a real broad band data transmission is accomplished.

Abstract: A wireless Local Area Network (LAN 11) capable of providing “enterprise guest” hosting includes at least one an e-open wireless LAN access point (15) that provides access to both guests and local users. Upon receipt of a request for access, the access point forwards the request to an authentication proxy. The authentication proxy then authenticates the party requesting access in accordance with that party's status (that is, whether the party is a local user or guest). Upon successful authentication, the network routes the traffic from a local user differently as compared to that for a guest. For example traffic from guests goes to gateway for receipt in an external network such as the Internet, whereas traffic from the local user goes to a local network, e.g., a corporate intranet. In this way, the Wireless LAN 11, after ascertaining the status of the party requesting access, can limit guest traffic according to the guest access policy.

Abstract: A writing stroke recognition apparatus, a mobile terminal and a method for realizing spatial writing are provided. By acquiring and analyzing the writing movement amount information, the present invention utilizes the preset corresponding relationship between the movement amount information and stroke information, and the preset corresponding relationship between the movement amount information and the stroke relative position information, to obtain the writing stroke information and the writing relative position information. Further, the present invention recognizes the corresponding character by using the obtained writing stroke information and the writing relative position information.

Abstract: A system, method, and computer readable medium for enabling roaming of wireless client stations among wireless access points, wherein a gateway programmed to receive session data requests is provided in a network, which comprises access points that are programmed to send session data requests to the gateway. The gateway sends session information setting commands to the requesting access point, or sends a session data failure response to the access point.

Abstract: Disclosed is a system and method for providing a transparent proxy for Internet communications. A filtering and redirection module receives IP requests from at least one client, reads and saves the destination of the IP requests, and rewrites the destination of the IP request to the destination of a proxy module. Upon being unable to read, or otherwise determine, a destination for an IP request, the proxy module accesses destination information about the IP request from the filtering and redirection module. The proxy module then transmits the IP request to a web server at the original destination.

Abstract: Disclosed is a method of dynamical frequency selecting for a basic service set established by a main wireless device in a wireless local area network. The method comprises steps of a determining step for determining whether a new channel to be used by said BSS is needed; a scanning step conducted by said main wireless device for scanning all channels based on a random priority to detect whether other adjacent BSSs are existing and performing DFS concurrently; a measuring step conducted by said main wireless device based on the scanning result for existing operational BSSs for measuring channel quality of a plurality of channels; selecting one channel based on the channel quality parameters. The present invention advantageously provides a dynamic frequency selection method without any modification for the IEEE 802.11 standard, or any requirement for the implementation of the wireless stations.

Abstract: Remote site downloading of content to a hotspot occurs by way of a cache server, which, when networked the hotspot, processes download, order proxies received from remote content provider servers or content user mobile devices. The cache server stores content files downloaded over the Internet from the content provider servers according to the proxies, and delivers content files to the appropriate mobile devices when they sign in at the hotspot. For example, a set top box at a hotspot can receive an instant message which includes a data set, including cookies, from a personal data assistant. There after, the set top box can download a movie from a movie vendor web site which has been previously ordered and paid for by a user using the personal data assistant over a cellular network, and then wirelessly transmit the movie to the personal data assistant using Wi-Fi protocol when it arrives at the hotspot and is authenticated.

Abstract: A wireless Local Area Network provides data service through a data LAN and also provides video broadcast service through a video LAN. A wireless LAN subscriber accesses the video LAN through one of a plurality of Video Access Points (VAPs) that broadcast multiple video programs on a channel having a frequency different than the frequency over which the subscriber accesses the data LAN. Each VAP maintains the video channel in a one-way broadcast-only mode to prevent a wireless LAN subscriber from seeking to uplink information on that channel. In this way, the wireless LAN can employ a common protocol for both data and video transmission, and deliver the video streams at the maximum permissible downlink transmission rate.

Abstract: A method of Authentication Authorization and Accounting (AAA) in an interworking between first and second networks that do not belong in the same administrative domain, using certificate based transactions. In the method according to the invention, the second network sends a public key to the first network, and a certificate to a mobile device. The certificate includes information regarding the subscription level of the mobile device and is signed with a private key of the second network. Upon detection of the first network the mobile device transmits the certificate and the first network authenticates the certificate using the public and private keys of the second network, and authorizes access to the network in response. The first network then sends a session key encrypted with a public key of the mobile device. The mobile device decrypts the session key with a private key and access the first network using the session key.

Abstract: A method and system for caching data such as audio, video and/or other data uses information including future access request information for improved caching performance. According to an exemplary embodiment, a cache system includes a cache operative to cache a plurality of data items. A processor is operative to enable at least one of the data items in the cache to be replaced using future access request information for the at least one data item.

Abstract: The method for providing micro-billing for internet services includes establishing a micro-billing agent (MBA) within a user's access point (i.e., Internet Service Provider—ISP). The MBA contains the user's billing information and keeps that information exclusive to the MBA. By retaining the user's information with their access point, the user can conduct more secure online transactions, particularly for low cost transactions, without the inconvenience of inputting or transferring personal purchasing information to the online store. According to one aspect, the purchase page may be previously encoded with a micro-billing option which would enable the MBA to obtain user authorizations in online transactions in a more streamlined and secure manner.

Abstract: A method and a system for allowing a user device that has already been authenticated by a first communications network to gain access to a second communications network without undergoing authentication by the second communications network. The first communications network and the second communications network have a pre-established trust relationship there between. A packet is received from the user device that includes a user device public key, by the second network via the first network. A session key is sent from the second network to the user device, via the first network, when a source Internet Protocol (IP) address associated with the packet falls into a range allocated to the first network. The session key is encrypted with the user device public key. The user device decrypts the session key using a private key and uses the session key thereafter to access the second network.

Abstract: There is provided a system for resolving a proxy server name for a web browser request issued by a user device in a network. The user device has a browser configured with the proxy server name. The system includes a Domain Name System (DNS) server and a web server. The DNS server generates a private Internet Protocol (IP) address associated with the user device in response to a non-resolvable DNS query from the user device that specifies the proxy server name, and creates a one-to-one mapping that relates the private IP address to the proxy server name. The web server receives a web browser request from the user device. The web browser request has been redirected to the web server and has an original destination IP address equal to the private IP address. The web server identifies the proxy server name from the private IP address using the one-to-one mapping.

Abstract: The present invention relates a bidirectional signal transmission apparatus and method, wherein said apparatus comprises a processor unit connected in signal communication with an Ethernet, an RF modulation/demodulation unit, and an RF frequency conversion unit connected in signal communication with a coaxial cable network. The data signal input from the Ethernet is modulated into standard IEEE802.11 signal by means of said signal processing unit and RF modulation/demodulation unit, and then down-converted from 2.4 GHz or 5.8 GHz standard IEEE802.11 signal to a range of 500 MHz to 2000 MHz, and preferably to a range of 900 MHz to 1200 MHz. The bidirectional transmission apparatus further includes a frequency band selector for selecting different frequency bands so as to broaden the bandwidth of the signal and a real broad band data transmission is accomplished.

Abstract: A method for mapping from an MPEG-2 transport stream to an IP-based RTP/UDP/IP stack for broadcasting service in a WLAN. All the mapping functions may be performed in a receiver transcoder (FIG. 2). Mobile devices such as laptop computers, cell phones and PDAs have limited battery power, CPU processing and memory resources. To reduce CPU processing power and consumption battery power in these devices certain data processing functions are achieved in the communicating systems, such as the de-multiplexer function that typically prepares an MPEG-2 for retransmission at the local level. When a transcoder, capable of de-multiplexing and MPEG-2 transport stream receives a program it de-multiplexes the stream based on PIDs assigned to each transport packet. This de-multiplexing function extracts several components from a transport stream: video and audio PES/ES associated with programs and PSI (PAT and PMTs).

Abstract: The present invention relates to a server used to transmit Ethernet data signals from an Ethernet network to multiple cable TV network clients or receive Ethernet data signals from the multiple cable TV network clients, the server comprising multiple APs (access points), wherein the APs synchronously start a downlink transmission or an uplink transmission, and wherein during the downlink transmission the APs convert the Ethernet data signals into encoded and modulated RF signals and transmit the encoded and modulated RF signals to the multiple cable TV network clients, and during the uplink transmission the encoded and modulated RF signals from the cable TV network clients and convert the encoded and modulated RF signals into the Ethernet data signals.