Abstract: The present invention relates to a method for processing data by a server (1) including at least one data-processing unit and a data storage means, the method being characterized in that it includes the following steps, following the activation of at least one trigger implemented by the processing unit(s), said trigger(s) being capable of being activated in response to a predefined event: (a) an attempt by the processing unit(s) to determine a state of at least one index selected, on the basis of the activated trigger, from among a set of observable indices relating to personal data of a user and/or relating to general data; (b) the generation and storage, in the storage means, of a situational signature of the user in accordance with the results of said attempt to determine the state of at least one index; (c) the comparison of said situational signature of the user with a plurality of masks, each mask being associated with a reference situation and corresponding to a situational signature space, so as to id

Abstract: The present invention relates to a method of processing data regarding connection to a platform (2) of an internet site by a server (1) comprising at least one data processing unit and data storage means, the method being characterized in that it comprises steps of: (a) identification of a situation of a user connected to said platform (2) via an item of equipment (3) from among a list of reference situations, each reference situation being associated with at least one strategy, each strategy comprising one or more situational engines chosen from among a library of situational engines, each situational engine being able to implement a given processing on a situation of a user so as to obtain a message having a hoped-for effect on the situation; (b) for at least one of the strategies associated with said identified situation, implementation by the data processing means of the server (1) of the situational engines of said strategy on said situation so as to obtain at least one stack of messages; (c) dispatching

Abstract: The present invention relates to a method of processing data regarding connection to a platform (2) of an internet site by a server (1) comprising at least one data processing unit and data storage means, the method being characterized in that it comprises steps of: (a) identification of a situation of a user connected to said platform (2) via an item of equipment (3) from among a list of reference situations, each reference situation being associated with at least one strategy, each strategy comprising one or more situational engines chosen from among a library of situational engines, each situational engine being able to implement a given processing on a situation of a user so as to obtain a message having a hoped-for effect on the situation; (b) for at least one of the strategies associated with said identified situation, implementation by the data processing means of the server (1) of the situational engines of said strategy on said situation so as to obtain at least one stack of messages; (c) dispatching

Abstract: A wireless tap-off device capable of providing a wireless LAN service, which can allow a user to receive a wireless LAN service anywhere in the country through a tap-off device of an existing CATV network, is provided. The wireless tap-off device may include a cable modem which converts a CATV signal into an Ethernet signal, outputs the converted signal, converts an Ethernet signal into a CATV signal, and transmits the converted signal to a connector, an access point which converts an Ethernet signal applied from the cable modem into a wireless signal, transmits the converted signal to a computer device through an antenna in a wireless manner, converts a wireless signal applied from the computer device into an Ethernet signal, and provides the converted signal to the cable modem, a DC power supply, and a switching unit.

Abstract: A slicer for a decision feedback error equalizer system that processes trellis encoded data using the ATSC trellis code is implemented in two parts. A first part includes a trellis decoder that estimates a single bit of the symbol. The second part includes two partial trellis decoders. A multiplexer directs the received digital samples to one of the two trellis decoders responsive to the estimated symbol. An alternative slicer estimates two bits of the output symbols and selects from among four decoders to fully decode the symbols. The slicer is used in an equalizer having adaptive filters that may operate either on passband or baseband signals. The slicer is used both to recover the carrier signal on which the symbols are modulated and to provide symbols to the second filter that are used to determine filter coefficients for the second filter.

Abstract: A wireless local area network allows roaming of a mobile unit to allow it to serially associate with a number of access points of the network fixed backbone. This roaming is supported by an improved measurement of communications link quality, which includes calculating a mean error free length of a test pattern broadcast by each access point and received by a mobile unit. The test pattern is a digital data message. Thus an accurate measurement of link quality is provided which allows a mobile unit to determine whether it should change its association to another access point having improved communications link quality. Further, a load balancing process is provided to balance the communications load amongst a variety of access points, by allowing mobile units also to switch their association with access points in accordance with a current total data rate at any given access point and also considering the number of currently high data rate mobile units associated with a particular access point at any one time.

Abstract: A network with wireless links is a dynamic learning system which allows a mobile (wireless) unit to determine which access point (wired) unit provides the mobile unit with the best communications as the mobile unit roams within an area and from area to area. As a mobile unit enters a new area, it scans the area to find an access point unit. After the mobile unit is verified by the access point unit, the mobile unit receives updated information about other access points in the area, including information indicating which access point units are within wireless transmission range of the mobile unit as well as multiple values indicating a communication range for a particular access point unit to the mobile unit. The information is updated as the system gathers new information through the mobile units and access point units within the system area.

Abstract: A wireless local area network includes a radio transmitter/receiver for transmitting and receiving in accordance with the FCC rules for the ISM band. The receiver/transmitter supports spread spectrum frequency hopping in the 2.4 GHz ISM band and can be tuned to one of e.g. 82 different frequencies spaced at 1 MHz intervals. The radio transmitter/receiver is a low cost, low power, small size unit located on a printed circuit board in a PCMCIA form factor. Third order mixers are used in combination with a switched prescaler for a low cost and compact frequency control system capable of rapid switching of the radio between transmitting and receiving functions. No special shielding is needed between the frequency control circuitry and the receiver IF circuitry.

Abstract: A wireless network is initialized by communications between mobile units forming an ad hoc network or by communications between a mobile unit and an access point unit. Mobile units transmit announcements in order to establish a communication link. To ensure the announcements are received, the mobile units scan different frequencies at various times using various hop sequences. Once communication is established, one mobile unit adopts the hop frequency of the other mobile unit according to a comparison between the hop frequencies of the two units. Multiple mobile units initialize to form ad hoc networks in similar manner.

Abstract: A wireless network transmits information to mobile units which indicate communication ranges of particular access point units. Each mobile unit scans traffic on the network communications channel (typically frequency hopping radio transmissions using spread spectrum). As a mobile unit leaves one area and enters another area of the network, access point units in the new area transmit information, which the mobile unit receives. The transmission includes information indicating which access point units are within radio range of the mobile unit as well as multiple values indicating a communication range for a particular access point unit to the mobile unit. The mobile unit uses this information to establish communication with desired access point units.