Abstract: A wireless communication system has a central computer, one or more wireless access points and one or more personal badges that communicate wirelessly with the one or more wireless access points. The badges provide the user with a communications device that permits the user to initiate telephone calls and conferences, receive telephone calls, receive pages and be located within a particular environment.

Abstract: A method and device is able to authenticate a subscriber of a digital mobile radiotelephone system vis-à-vis an authentication entity, wherein the subscriber firstly initializes vis-à-vis the authentication entity by executing several times the authentication algorithm containing stored subscriber-specific components and by storing the corresponding response parameters of the subscriber-specific components in a non-volatile memory. Systematic authentication of the subscriber of the mobile radiotelephone system vis-à-vis the authentication entity via a common interface is made possible by the authentication parameters stored in the memory since the authentication entity can always refer back to the response parameters of the individual subscriber module it already knows.

Abstract: Disclosed the-wireless local loop system which can support both an wireless voice service and a FAX data service by improving a current CDMA WLL system to be supported the FAX service function. The system provides a voice service and a FAX service using the first and second modems for each facsimile/telephone connected to the wire/wireless communication network of the fixed subscriber unit or the processing unit.

Abstract: A wireless telephone handset sends commands over a data network, and places voice calls over a telephone network, to a message storage system. The commands include information that enables the message storage system to identify the handset and correlate the voice calls with their corresponding commands. The message storage system can then execute the commands by playing or recording voice signals over the voice channels provided by the voice calls.

Abstract: Signals subjected to orthogonal modulation with a plurality of carrier frequencies are added to detect peak power. Based on the peak power, a coefficient for suppressing an amplitude of a transmission baseband signal is calculated. Using the coefficient, the amplitude of a baseband signal to be inputted to a filter is suppressed. It is thereby possible to suppress the peak power assuredly, and by the effects of the filter, unnecessary frequencies are not generated.

Abstract: The system and method for long baseline RTK survey are disclosed. The system includes a primary base station (PBS), a secondary base station (SBS), a primary data link between the PBS and the SBS, and a secondary data link between the SBS and a rover. The PBS, the SBS, and the rover are equipped with satellite antennas for satellite navigational purposes, and with the wireless Internet data accesses devices (WIDAD). The long baseline vector between the PBS and the rover is established by combining the primary baseline vector between the SBS and the PBS and the secondary baseline vector between the SBS and the rover. The PBS is placed in a position with a known location. The PBS wirelessly downloads its logged set of data into the Internet server using the (PBS-WIDAD). The SBS determines its precise position coordinates by accessing wirelessly the PBS logged data on the Internet server using the (SBS-WIDAD).

Abstract: Techniques for ascertaining the geographic position of users and terminals in a wireless communications system are used, for example, by operations personnel in performing system maintenance and by emergency personnel in locating lost or injured individuals. According to an exemplary method of requesting and obtaining user position information, user terminals in a wireless communications system routinely transmit position information to mobile switching centers in the system, and the mobile switching centers maintain up-to-date terminal position information in visiting location registers. Requests for user position information are routed to a home location register which in turn routes terminal position requests to mobile switching centers with which the target users are registered. Terminal position information is retrieved from the appropriate visiting location registers and sent back to the requesting parties with a minimum of system traffic.

Abstract: A signal receiver includes a superregenerative circuit for feeding back a part of an output signal to form part of an input signal through a feedback route to execute a superregeneration, a capacitance element disposed in the feedback route of the superregenerative circuit, a switch for switching the capacitance element, and a PLL circuit for generating a clock signal for switching the switch based on an output of the superregenerative circuit.

Abstract: A cordless telephone system includes a base station having a base clock indicative of the time of day, and a handset having a handset clock indicative of the time of day. The handset is synchronized to the base station. When power is lost in the handset or the base station, the unit with power detects loss of synchronization therebetween. Upon restoration of the power, the continually powered unit provides the power restored unit with clock recovery information for updating the clock of the power restored unit. The clock recovery information is generated in the continually powered unit by counting elapsed time when the loss of synchronization is detected.

Abstract: It is proposed an equalization and precompensation system for TDMA communication and its application to the DECT system, which is able to enlarge the coverage area provided by a single base station in a wireless system through electronic procesing performed at the base station only, and to enhance the transmission quality of a wireless system through electronic processing performed at the base station only, in addition or in alternative to the coverage area enlargement of the individual base station, comprising a processor (P) inserted in the base station only, and replacing the direct links commomnly used to connect the modulation (MO) and the demodulation (DEM) sections respectively with the transmitting and receiving sections and containing channel estimation subsystems (CES), equalization (EQS) and precompensation (PCS) subsystems in order to be effective both for uplink and downlink.

Abstract: A method of directional radio communication in a mobile communication network between a first station (4) and a second mobile station (MS) comprises the following steps. Communication data transmitted by a second station (MS) is received at the first station (4). The communication data can travel via one or more of a plurality of signal paths and is received as a set of signals from one or more of a plurality of different beam directions. A first beam direction corresponding to the beam direction from which a first one of the signals is received by the first station representing a shortest one of the signal paths is determined as is a second beam direction corresponding to the beam direction from which one of the signals having the greatest signal strength is received. Where the first and second beam directions are different, communication data is transmitted from the first station (4) to the second station (MS) in both the first and second beam directions.

Abstract: Radiotelephones include flat blade antennas and flip configurations. The flat blade antenna and flip are mounted to the radiotelephone via dual hinges. The flat blade antenna is configured to be captured by the flip to define a cover in the stow position. The flat blade antenna rotates separate from the flip. The flat blade antenna opens to an angular position greater than the adjacently mounted flip.

Abstract: A controller in a mobile telephone periodically commands GPS circuitry in the mobile telephone to power-on, capture and process GPS satellite signals. The signals are processed to obtain pseudo-range or time-difference data for at least one GPS satellite. After the signals are processed, the pseudo-range or time-difference data, GPS time, and satellite numbers are stored in non-volatile random access memory (RAM) and the GPS circuitry is powered off. When an emergency signal is present, the controller first commands the GPS circuitry to power-on, capture and process signals from four GPS satellites. If signals from at least four satellites are not present, the information stored in non-volatile RAM is read out. The processed data (if available), or else the data read out of the non-volatile RAM, are reported to a central location through the mobile telephone transmitter. The central location can then use the data to compute the present or last valid GPS location of the GPS receiver.

Abstract: An information terminal include a communicating device for communication by radio, a controller for at least processing data, and a display screen. When the communicating device receives a signal of radio waves from a transmitting base, the controller extracts information from the received signal and displays the extracted information on the display screen. Also included is an input device having a rotatable operation part that may be rotated clockwise and counterclockwise in desired amounts and at desired angles to effect inputs. The controller displays predetermined numerics on the display screen, processes the inputs from the input device, and changes the predetermined numerics displayed on the display screen in accordance with the processed inputs.