Abstract: When an emergency button 8a of a radio communication apparatus has been turned ON and a transmit mode button 8b has been depressed, an MCU 11 sets frequencies of a receiving section 2 and a transmitting section 3 to an emergency communication frequency. The MCU 11 also causes an indicator lamp 10 to illuminate or flash at peak intensity, and causes a burst sound to be supplied from a loudspeaker 6 at the maximum volume. Then, the MCU 11 causes a built-in timer to measure a given time period while resetting the timer whenever a reception/transmission switching operation is performed or a communicating signal is detected. While the timer measures the time period, the MCU 11 causes the indicator lamp 10 to be turned off. When a timer expiration is detected, the MCU 11 causes the indicator lamp 10 to be turned on or flashed again.

Abstract: A time-varying transformation is used to correlate the magnitude of the interference between multiple antenna paths. Embodiments incorporating the time-varying transformations provide transmit diversity gains to remote stations that are not configured for transmit diversity reception. In addition, some of the embodiments can be further configured to balance the load between multiple power amplifiers.

Abstract: Radio communications apparatus according to the invention comprises a DAC, a variable power amplification unit including at least two variable power amplifiers, and variable power amplification control unit for controlling the variable power amplifiers. The variable power amplification control unit controls the variable power amplifiers in order to upgrade the accuracy of the apparatus and assures a smaller apparatus design.

Abstract: The circuit size of a diversity receiver for an orthogonal frequency division multiplexing signal is reduced, and the diversity effect is increased, by providing a power ratio comparator that calculates a difference value as a ratio of powers derived from channel estimation results for subcarrier components received from two antennas (11), (21) and compares the calculated difference value with a predetermined threshold, and a selective/equal gain combining selector (33) that outputs one of the received demodulated signals when the comparison result indicates that the calculated difference value is greater than the threshold value.

Abstract: A method and system characterizes an IF response of a receiver under test, such that an effect on the characterization by errors associated with uncertainties in knowledge of an RF stimulus signal used to perform the characterization is reduced. The method includes determining an estimate of an actual IF response of the receiver under test from IF responses of the receiver under test measured at overlapping frequency bands and a set of conversion coefficients computed therefrom, such that the estimate reduces the effect of the errors. The system includes a signal generator, an IF processor, a computer program, and a controller that controls the generator and the processor and executes the computer program. When a receiver under test is characterized, the receiver is connected between the signal generator, the IF processor and the controller. The computer program includes instructions that implement characterizing the receiver IF response.

Abstract: A tuner includes an RF input with a signal level controller such as an attenuator that is provided to attenuate a signal from the RF input. A tunable RF filter provides RF band limiting and determines simultaneously the AGC bandwidth. An amplifier with resistive feedback provides first and second outputs which, together, represent the incident power of the attenuated signal delivered by the amplifier, thus eliminating the need for a directional coupler and rendering this part of the tuner compatible with integration. A feedback circuit responds to the incident power of the attenuated signal by controlling the attenuation (AGC) provided by the signal level controller.

Abstract: The present invention provides a differential voltage control oscillator including: a parallel resonance circuit in which an inductor circuit, a variable capacitance circuit, and a radio-frequency switching circuit are connected in parallel together; and a negative resistance circuit connected in parallel with the parallel resonance circuit.

Abstract: A filter circuit, having a plurality of selectable impedance elements, that has a cutoff frequency dependent on a selected impedance element, comprises a pulse generation circuit that supplies a variable frequency pulse with a successively increasing or decreasing frequency to an input of the filter circuit; and an impedance element selection unit that checks the attenuation of the output pulse of the filter circuit corresponding with the input of the variable frequency pulse and selects the plurality of impedance elements on the basis of the position of a pulse that is attenuated to or below a reference value.

Abstract: A shorted resistive block formed in line with at least one trace of a plurality of a top metal layer includes a plurality of resistors with a removable shorting link coupled across the resistive block. The resistive block comprises one of a plurality of series coupled shorted resistors and a shorted plurality of parallel coupled resistors. If harmonic interference needs to be reduced, a short is removed and the resistive block is operably coupled to parasitic capacitance thereby creating an R-C filter. The real performance is re-evaluated after removing the short. If the re-evaluation determines a desired R-C filter value should be increased, the resistance of the resistive block is increased by opening a shorting link. In the series configured resistive block, resistance is increased by removing a short across a resistor. In the parallel configuration, the resistance is increased by cutting a removable link coupled in series with each resistor.

Abstract: The present invention provides an automated user notification system for monitoring user items and notifying a user when selected conditions occur. A first portion of the notification system comprises a network operations center (NOC). The NOC stores user information about one or more user items and is further coupled to a plurality of communication devices that can automatically contact a user. A second portion of the notification system comprises at least one detector. The detector monitors one or more user items and provides efficiently encoded information regarding selected conditions of the user items to the NOC via a communication link. After the information is received and decoded by the NOC, the NOC automatically matches the received information to information stored at the NOC to determine if a condition exists about which the user should be notified.

Abstract: A method for ascertaining a billing tariff for billing for a data transfer, where a mobile communication terminal which is involved in the data transfer and has access rights for a data mobile radio network is situated in a visitor mobile radio network. The method involves setup of a data tunnel, used for transferring the data, prompting transfer of an item of location information which relates to the communication terminal from a switching center, temporarily associated with the communication terminal, in the visitor mobile radio network to the network gateway node in the data mobile radio network. The network gateway node transfers the item of location information to a billing system, and the billing system uses the item of location information to establish that the communication terminal is situated in the visitor mobile radio network. Thereupon and the billing system ascertains a billing tariff which is associated with the visitor mobile radio network.

Abstract: Roaming usage management apparatus for managing roaming mobile devices connected to roaming networks. The management apparatus includes a data gathering application for gathering roaming activity data, a database application, which aggregates the records into activity logs of calls per roaming device, and an output unit which sends outputs to or concerning respective roaming devices, in order to manage them based on activity levels or kinds of activity recorded in the logs. The embodiments thus provide management of roaming devices. The management is per roaming device, preferably real time, and may be used to leverage takeup of roaming services.

Abstract: The present invention is intended to provide, for a wireless communication system originally having a calling function, a wireless communication system enabling an audio communication service or the like which requires a calling function, and to provide a wireless communication system which reduces power consumption of a wireless terminal when it is in a standby mode. A communication party, which is a calling side, a network to which the communication party is connected, and a wireless LAN base station, a pager base station, and a pager controller which are connected to the network, and a PC, which is a wireless communication terminal, constitute the present invention. The PC includes a wireless LAN card and a pager card 2. This forms the present invention.

Abstract: A hand-held information processing device, such as a mobile phone, has a thumb wheel that lets the user scan a circular array of options. Each respective one of the options is represented by a respective audio output that gets played out when the wheel is turned a notch up or down. This enables the user to select an option with one hand and without having to look at the device. It also allows for a form factor smaller than that of a conventional mobile phones since a keypad is not needed for entering digits to make a call from a personalized directory.

Abstract: A multimedia communication system is disclosed in which a mobile telephone that originates transmission can detect the media types and formats of a multimedia message that can be received by destination mobile telephones. Information regarding data formats that can be received by each mobile telephone is stored in an MMS user database server. The MMS user database server receives from the transmission-origin mobile telephone destination information and format information for each media type of the multimedia message that is to be transmitted and determines whether the multimedia message can be received at the transmission-destination mobile telephones based on this destination information and format information. The MMS user database server then notifies the transmission-origin mobile telephone the results of the determination, whereupon the transmission-origin mobile telephone determines whether to transmit the multimedia message without alteration or to modify the format of the multimedia message.

Abstract: Methods and apparatus for anonymous identification of the profiles of subscribers in a communication system, wherein subscribers define and store subscriber-specific profiles via a respective input unit in a respective communication terminal and/or in a respective module respectively coupled to a respective communication terminal. Each respective module communication terminal is used to collect the profiles of other subscribers of the communication system on the basis of a wireless, locally defined network technology which are compared to the profiles defined and stored in the respective communication terminal whereupon they are discarded according to a subscriber-specific correlation threshold or communicated to the respective subscriber. A communication link is set up by an intermediate coupled provider of the communication system between subscribers when the respective subscriber activation occurs.

Abstract: A method and system for providing advanced notice of cost to access web content. During transmission of web content over a communication path between a content server and a client station, an intermediation system adds into the web content, in conjunction with a hyperlink to web content, an indication of cost to access the referenced web content. The indication of cost will then be presented to a user when the web content is presented to the user, thereby giving the user an advanced notice of the cost to access the referenced content.

Abstract: Techniques for archiving audio information communicated between members of a group using an audio communication system such as a point-to-multipoint audio communication system. The archived audio information can then be retrieved by members of the group or by any other user at any time subsequent to the live transmission of the audio information. Audio information communications between communication devices used by members of a group are monitored and recorded. The recorded audio information is then analyzed to identify one or more conversation portions in the audio information. Audio information corresponding to the conversation portions is then archived. The archived information is then available for retrieval.

Abstract: A method is provided for supplying service to mobile stations (MS) (20) utilizing a wireless telecommunications network (A). Each of the MS has a home country and a home network and is programmed with an identifier comprising a number including a set of digits. Each identifier is one of two types including a first type of identifier that uniquely identifies its MS globally via the entire set of digits making up the identifier (e.g., a true International Mobile Station Identity (IMSI)) and a second type of identifier that uniquely identifies its MS within its home country via a subset of least significant digits making up the identifier (e.g., a Mobile Identification Number (MIN)-based IMSI).

Abstract: A base station control portion selects one or multiple signals in accordance with the state of radio waves from signals received through multiple communication paths. A wireless communication apparatus communicates with a wireless terminal and a wired communication network at multiple frequencies. In response to a request for software upgrading from a network management device, the wireless communication apparatus selects one frequency, controls the state of transmission waves of a wireless interface such that a communication path in which a communication service is being provided can be switched to another communication network without interruption, rewrites software for each wireless interface to software received through a wired interface in advance, and returns the state of transmission waves of the wireless interface. Thus, the software can be upgraded without blackouts of the communication service to the wireless terminal.

Abstract: The present invention relates to a file construction for mobile communication device including an execution segment in form of machine language codes and a file execution method using the same, whereby a file in accordance with the present invention comprises a header, a file execution segment formed in machine language codes, and a resource segment to be selected by languages; wherein the header includes data for performing one or more of the functions of: 1) verifying reliability/validity of the file, 2) restricting use of the file (by period of the use, by times of the use), and 3) automatic updating of the file.

Abstract: A method for recognizing an attempted data connection in a wireless network between a telematics unit and a call center using a modem. During the connection attempt, a determination is made whether frequencies received through the modem are audio frequencies or data frequencies. The connection is abandoned prior to a time-out if frequencies received through the modem are audio frequencies.

Abstract: A head end controller is described. The head end controller controls a plurality of service units in a telecommunications system with a multi-carrier transmission scheme. The head end controller includes a logic circuit that generates control messages for the plurality of service units. Each service unit is assigned to at least one subband of a transmission bandwidth. The head end controller further includes a transceiver that is coupled to a distribution network of the transmission system, wherein the transceiver broadcasts control messages to the plurality of service units. The plurality of service units are configured to use a multiple access scheme to transmit on a radio frequency carrier using orthogonal frequency division multiplexing (OFDM) so that transmissions from the plurality of service unit are received from the distribution network at the transceiver synchronized within an OFDM waveform.

Abstract: A telecommunication system establishes location information concurrently with the set-up of a landline as a network address for delivering wireless-based subscription services. A location register in the wireless system defines a current network location where a respective subscriber is connected and a current geographic location where said respective subscriber is located. An access device is provided for coupling with a landline within the public switched telephone network, wherein the landline has a landline ID, and wherein a user terminal connected to the landline is associated with a fixed geographic location. A control channel transmits an electronic identification number of a subscriber and a location coordinate corresponding to the fixed geographic location from the access device to the location register during registration of the landline as the current network address of the user terminal. The subscriber receives location-based wireless services via the landline.

Abstract: This invention provides a wireless network system including a logically or physically separated wired network, a wireless base station connected to the wired network, and a plurality of wireless mobile terminals which performs wireless communication with the wireless base station. The wireless base station used in this system includes a wired communication unit which is connected to a wired network, a wireless communication unit which performs wireless communication using one radio frequency, and a wired line/wireless channel bridging function. The wireless base station also includes a control unit which controls one wireless communication unit to send out packets storing pieces of information corresponding to a plurality of virtual wireless networks so as to form a plurality of virtual wireless networks.

Abstract: A network service system of the present invention comprises a temporary user identifier update request transmitting side device which provides a first service to a user and can transmit a request to update a temporary user identifier shared within a system; a temporary user identifier update request receiving side device which is connected to the temporary user identifier update request transmitting side device by a network and can receive the update request from the temporary user identifier update request transmitting side device, for providing the second service cooperating with the first service using the updated temporary user identifier; and a user proxy device which is connected to the temporary user identifier update request transmitting side device and the temporary identifier update request receiving side device by the network, and with which the user receives the two services.

Abstract: The present invention is directed to a distributed approach to handoff and cell site selection that takes into account the load dynamics in a multi-cell system.

Abstract: A method for handing off a call between networks includes monitoring a quality of a first link between a mobile station and a wireless local area network (WLAN) when the mobile station is actively connected with the WLAN on a call and monitoring a quality of a second link between the mobile station and a cellular network when the mobile station is actively connected with the WLAN on the call. The method also includes handing off the call from the WLAN to the cellular network when the quality of the first link is less than a handoff trigger threshold for a drop count duration and when the quality of the second link is greater than a minimum cellular link quality threshold.

Abstract: In a mobile station, a radio section is adapted to communicate with a plurality of base stations, and a control section is connected to the radio section. The control section is adapted to search for cells of the base stations to obtain broadcast information of radio signals of the base stations received by the radio section, select a serving cell of a specified one of the base stations and neighbor cells of other ones of the base stations neighbor to the serving cell in accordance with communication qualities of the radio signals of the base stations, and to set the serving cell and the neighbor cells in a communication connection preparing state.

Abstract: Data traffic over a plurality of data communications links of a wireless data communications system is controlled by identifying a poorly performing wireless link, and interrupting data communications over the poorly performing link. The data throughput of remaining links between the transceivers is thus increased due to reduced interference and increased available band-width, because the poorly performing link is no longer transmitting. Interruption of data communications over the poorly performing link may be accomplished by suspending or dropping transmission of a frame. If a frame is predicted to be certain to violate quality of service (QoS) requirements, the frame may be preemptively suspended or dropped. If multiple frames are dropped within a predetermined period, a communications session over the poorly performing link may be dropped. Data communications over the poorly performing link can be resumed following a selected delay period, which may have a random length.

Abstract: A method for transmitting data in a data transmission system comprising a first node and a plurality of second nodes, the first node being arranged to address the second nodes in a predetermined order, and each second node being arranged to transmit data to the first node immediately after having been addressed by the first node; the method comprising: if a second node has data to transmit to the first node and another second node in the order did not transmit data to the master in its previous opportunity to do so, forwarding at least some of the data from the said second node to the said other second node for transmission to the master via the said other second node.

Abstract: The modulation/demodulation unit modulates information to be transmitted, or demodulates information received. The time slot control unit assigns time slots to a terminal apparatus when the base station apparatus establishes connection with the terminal apparatus. The quality derivation unit derives the quality of the transmission links as appropriate. The modulation mode control unit determines the modulation modes suitable for the quality of the transmission links for the up link and down link, respectively. Moreover, when the remaining period of the time slots is greater than or equal to a threshold value, the modulation mode control unit determines to change the modulation modes currently in use into the modulation modes determined. When the remaining period is smaller than the threshold value, the modulation mode control unit determines to keep using the modulation modes currently in use without changing to the modulation modes determined.

Abstract: A method, apparatus, and signal-bearing media for determining a presence rule for a mobile device and updating presence information for the mobile device when the presence rule is met. The presence rule may have a condition and a corresponding state. When the condition is met, the corresponding state is saved in the presence information. The presence information may also contain reachability information for the mobile device.

Abstract: A method for a communication system includes generating a message inquiry signal, sending the message inquiry signal to a base station to determine if updated command messages are available from the base station. When updated command messages are available from the base station, the updated command messages are transmitted to the device. The device may then operate a text display using the updated command messages.

Abstract: A method of presenting location data representing a mobile phone's current approximate location to a mobile phone user via the mobile phone display. The location information is iconically displayed and periodically updated. To display location information, the mobile phone determines its current position. Once the current position is determined, the mobile phone looks up locations within a predetermined distance from the current position of the mobile phone. The mobile phone then compares the results and selects the location/location icon pairing that is closest to the current position of the mobile phone. This location icon is then displayed on the mobile phone display. The mobile phone then waits a predetermined period before re-determining the current position of the mobile phone and repeating the search/display processes. Both the predetermined wait period and predetermined distance from the current position are user defined parameters that can be altered at the user's discretion.

Abstract: A wireless apparatus is described comprising: an RF subsystem to support communication over a wireless network according to a specified network protocol; a Host subsystem to execute program code; and an interface to provide communication of control signals between the RF subsystem and the Host subsystem, the control signals allowing the RF subsystem and/or the Host subsystem to enter into a low power state independently of one another.

Abstract: A gap is provided between portions of a phone across which a signal between an antenna and a circuit is transferred.

Abstract: The present invention relates to a method and a communication system wherein stations communicate on a wireless interface. The method includes the steps of including beam identity information into signals transmitted on multiple beams provided by a first station, receiving at a second station signals transmitted from the first station, and identifying beams via which the second station received signals from the first station based on said identity information. At least one beam for transmission on the wireless interface between the stations is then selected. A station configured for the communication comprises antenna means for receiving signals transmitted from the other station on multiple beams and a controller for identifying beams based on beam identity information associated with signals received from the other station.

Abstract: Spatial and temporal characteristics of received radio signals in a multiple user radio system can be estimated based on signals received from the users. In one embodiment, the invention includes collecting measurements of radio frequency signals received at different elements of an antenna system over time, the received signals corresponding at least in part to transmissions received from a system user, collecting representations of the transmissions of the system user, and comparing the representations to the collected measurements to form a spatial characterization of the radio channel traversed by transmissions of the system user in which the elements of the spatial characterization represent forming a beam in the direction of the system user and directing nulls to interferers.

Abstract: A portable communication device includes a body (11) having a container (111) and a buffer room (115), and a plurality of fragrance releasing apparatuses (12) housed in the container. The body houses main circuitry therein. The buffer room communicates with the container and outside environment. The container also houses a plurality of electrical connectors therein. The electrical connectors are electrically connected with the main circuitry. Each fragrance releasing apparatus includes a vessel (121) with a nozzle (127). Each nozzle includes a heater (128) connecting with and being enabled by the main circuitry via the corresponding electrical connector. When the portable communication device receives an incoming call (or message), predetermined heaters are enabled by the main circuitry to release a fragrance corresponding to the caller (or sender).

Abstract: A portable personal communicator includes a body portion and a flip element having a built-in display. The body portion includes either a telephone keypad or a second display. The personal communicator functions as a radiotelephone, and can also transmit and receive non-voice data messages. Input keys on the flip element are provided proximate to the flip element display so that software-definable functions performed by the keys can be indicated on the display adjacent to the respective keys.

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: In a non-invasive body component measuring apparatus for measuring a concentration of a body component in a measuring portion of a living body, and a method of non-invasively measuring the concentration of the body component, the non-invasive body component measuring apparatus includes a light source unit for generating light of a predetermined wavelength and for applying the light onto the measuring portion, a detection unit for detecting light reflected or transmitted by the measuring portion and for converting the detected light into an electrical signal, a signal processing unit for processing the electrical signal, and a body-apparatus interface unit for fixing a periphery of the measuring portion during measurement.

Abstract: Microprobe device 10 provides an analyte signal from biosensor 12 to an external analyte meter indicating analyte presence in an analyte-containing bodily fluid of a subject (not shown).

Abstract: The present invention relates generally to systems and methods for measuring an analyte in a host. More particularly, the present invention relates to systems and methods for transcutaneous measurement of glucose in a host.

Abstract: A method and device are described to form a sensor using a cardiomyocyte by advancing a catheter into the tissue of interest, cardiac in the preferred embodiment, and using the catheter to ablate a cone- or a dome-shaped region to form an electrically isolated section of tissue. An electrode is later fixed to the region encompassed by the dome-shaped area of tissue and used to detect the electrophysiological activity of this electrically independent cluster of cells. These cells combined with the electrode and a detection circuitry will form a cell-based sensor to monitor the effects of the anti-arrhythmic drugs in the circulation. The inventive device includes an ablation catheter and a sensing lead. Catheter is a hollow conductor which used to carry RF power from the external generator to the myocardium and to form a cone-shaped ablation zone to electrically isolate a part of myocardium from the rest.

Abstract: An intraoperative neurophysiological monitoring system includes an adaptive threshold detection circuit adapted for use in monitoring with a plurality of electrodes placed in muscles which are enervated by a selected nerve and muscles not enervated by the nerve. Nerve monitoring controller algorithms permit the rapid and reliable discrimination between non-repetitive electromyographic (EMG) events and repetitive EMG events, thus allowing the surgeon to evaluate whether nerve fatigue is rendering the monitoring results less reliable and whether anesthesia is wearing off. An artifact detection electrode provides a reliably detectable impedance imbalance between the electrode leads and antenna-like qualities for enhanced detection of current and electromagnetic artifacts.

Abstract: A system and method for the in situ discrimination of healthy and diseased tissue. A fiberoptic based probe is employed to direct ultraviolet illumination onto a tissue specimen and to collect the fluorescent response radiation. The response radiation is observed at three selected wavelengths, one of which corresponds to an isosbestic point. In one example, the isosbestic point occurs at about 431 nm. The intensities of the observed signals are normalized using the 431 nm intensity. A score is determined using the ratios in a discriminant analysis. The tissue under examination is resected or not, based on the diagnosis of disease or health, according to the outcome of the discriminant analysis.

Abstract: The present invention relates to a method of perfusion imaging comprising: performing a first magnetic resonance data acquisition (A) at a first sensitivity (b) value, performing a set of at least six second magnetic resonance data acquisitions (B1, B2, . . . B6) with gradiant encodings in different directions at second sensitivity (b) values, determining a perfusion tensor based on the magnetic resonance data acquisitions, performing a perfusion tensor visualitation step.

Abstract: A dive computer that includes heart rate monitoring capability is provided. The heart rate monitoring is accomplished by a belt that fits around the diver's chest, and the information is wirelessly transmitted to the dive computer. The heart rate information may be displayed during and after a dive, and the dive computer may selectively utilize the monitored heart rate information to compensate the decompression algorithm based on workload during the dive. The dive computer can also utilize the monitored heart rate information to compensate the decompression algorithm based on workload on the surface before and/or after the dive for no fly and repetitive dive calculations.