Abstract: A method and system are provided for compressing information to be sent from a server to a client such as a portable communication device. The server maintains first and second dictionaries for each portable device in the system. The first dictionary is provided to the portable communication device. The server generates more recent second dictionaries as new data comes into the server to be sent to a particular portable device. Communication between the server and a particular portable device is possible over a low cost wire line connection or a more expensive wireless connection. The more recent and accurate second dictionary, together with data compressed using the second dictionary, is sent to the portable device when the portable device is connected to the server by the less expensive wire line connection.

Abstract: Methods and apparatus implementing spatial processing in a remote unit. In general, in one aspect, the present invention provides a remote unit, that includes a plurality of antennas and a spatial processing unit coupled to the plurality of antennas. The remote unit also includes a performance determination unit to determine a performance of the remote unit and a feedback adjustment unit to adjust feedback transmitted from the remote unit to a device, wherein the adjusted feedback accounts for performance associated with the spatial processing unit.

Abstract: A method for power saving routing in wireless networks is disclosed. The present invention calculates a distance to a destination node to select and estimate candidate nodes so as to reduce the amount of calculations in the event of routing. Furthermore, the invention repeats the algorithm by optimum value n so that accessibility to the destination node can be obtained. This enables more efficient routing.

Abstract: An apparatus for processing a call of a wireless LAN using a callback function and a method thereof are for connecting calls when target terminals (destination terminals) are converted into a keep-alive state from a keep-dead state (for example, out of an access point section or power is turned off) by periodically receiving state information of other terminals in a transmitting terminal.

Abstract: A personal identification device for use with a mobile telephone in a wireless communications network includes an connector mated to a connector of the mobile telephone normally used for a hands-free kit or a data port. In a typical application, a user of the mobile telephone calls a server. The server sends a first telephone signal to the personal identification device. The device responds with a second telephone signal, designed to simulate voice or data activity, depending on the type of connector that is used. The simulated voice activity is structured in such a way as to cause the radio signal transmitted by the mobile telephone to go on and off in response to the simulated voice activity. A nearby receiver can detect the on/off pattern. The on/off pattern is designed to convey a unique identification code.

Abstract: A time information acquisition channel setting screen includes a channel number display window, a scan state display window and a command window. A channel time information of each channel as well as channel numbers of each channel are displayed in the channel number display window. While viewing the channel numbers and the channel time information, a viewer operates a cursor and selects a channel for updating internal time information.