Abstract: A dual-mode network access point device for enabling a user to select between at least two telecommunication service providers using the user's existing telecommunications wiring. The device includes a wireless interface circuit adapted for coupling one or more antennas which are used for transmitting signals to and receiving signals from a wireless service provider and a switching circuit for selectively coupling a first telecommunication device between a wireline service provider and the wireless interface circuit is provided in the device. The device further includes a controller circuit which enables the switching circuit automatically in response to an incoming call and on command to select either the wireline service provider or the wireless interface circuit.

Abstract: An apparatus in a wireless telecommunications network is provided with Short Message Service via a circuit switched channel unless the apparatus is operating in a packet mode. If the apparatus is operating in the packet mode, the apparatus is provided with Short Message Service via a packet channel.

Abstract: Billing identification numbers supplied to law enforcement agencies for monitored cellular calls are used to retrieve toll tickets generated by the cellular network. By processing the toll tickets, an identification may be made by the agency of the A-party to and routing of the monitored cellular call. Calling line identification (CLI) information is supplied to the monitoring law enforcement agency for each monitored call. The CLI information identifies the directory number of the A-party to the monitored cellular call when the A-party comprises another cellular subscriber.

Abstract: A satellite (S/C) cellular commsystem includes user terminals (UT) for transmitting to, & receiving signals from the S/C, and includes gateways for transmitting to the S/C. The gateways receive and distribute signals from the S/C. Each gateway identifies itself to a UT with which it communicates by use of a unique location area identity signal, including codes representing (a) the gateway residence country, (b) the system with which the gateway is associated, and (c) the antenna beam on which service is provided. A network controller (NC 18) transmits location area identity codes, representing (a) the identity of the S/C communication system, to distinguish it from other S/C communication systems which may serve the same region, (b) the satellite carrying the control signal, and (c) the particular antenna beam on which the control signal is transmitted.

Abstract: A system uses conventional text messaging capabilities of cellular telephone systems to embed one or more call-back telephone numbers. A start delimiter is used to separate a text data portion corresponding to the call-back telephone number from the text message. A termination delimiter may be used to indicate the end of the text data portion corresponding to the call-back telephone number. Multiple text data portions, corresponding to multiple call-back telephone numbers, may be inserted using multiple start delimiters and termination delimiters. A text parser in the cellular telephone searches the text message for the start delimiter and extracts the text data portion corresponding to the call-back telephone number. The cellular telephone user selects a desired call-back telephone number, which may be placed in a dialing queue for simplified communications between the cellular telephone and a destination corresponding to the selected call-back telephone number.

Abstract: An article comprising a micro-machined filter advantageously comprises a micro-machined resonator, a drive circuit and a detection circuit, at least a portion of which are circuits are disposed on the resonator within a magnetic field. In operation, an input signal is delivered to the drive circuit. The resonator is excited to movement by the Lorentz force that is generated as signal current varies. Due to the resonator's movement, a voltage is induced in the detection circuit, which moves with the resonator. Using well-known micro-machining techniques, a resonator can be made that has mechanical resonance frequencies extending into the GHz regime. Under proper conditions, such resonances advantageously exhibit very high Q-values, so that the resonator shows a significant physical response (e.g., movement) over a very narrow range of excitation frequency. When the frequency of the input signal matches such a frequency (i.e., the resonant frequency), the device generates a voltage having such a frequency.

Abstract: A multicellular communications system where transmission between a roving subscriber and multiple base station transceivers is maintained throughout the territory. Each mobile subscriber unit has global code seeds for the entire communications system or an updated neighbor list and continuously searches to access available cell base stations while maintaining a communication link with one base station. Candidate cell base stations are interrogated and communicated with. The candidate base station that requires less transmitting energy from the mobile subscriber unit is closely monitored. When the mobile subscriber unit can successfully communicate with less transmit power than currently required by the present base station, the mobile subscriber unit is handed off to the candidate base station transceiver.

Abstract: In a radio apparatus outputting an alarm prior to a scheduled time, when the receiving part 2 receives a schedule message, first the radio apparatus notifies the reception through the notifying part 8. When notifying the reception, it judges whether or not a user has confirmed reception of the schedule message, namely, whether or not the user has pressed the switch part 10. When the user has pressed the switch part 10, it sets the scheduled time shown by the schedule message as an alarm time. On the other hand, in case that the user has not pressed the switch part 10 in response to the notification of reception it sets as an alarm time the time earlier by a predetermined time than the scheduled time shown by the schedule message. It compares the current time data Se outputted from the timer part 9 and the alarm time with each other and in case that the current time data Se and the alarm time coincide with each other it outputs an alarm through the notifying part 8.

Abstract: The invention relates to method for calling by a terminal, like a card controlled mobile station, of a mobile communication system, in which method the terminal is controlled by a SIM-card and the subscriber is identified from data of the said SIM-card. Characteristic for the invention is that by attaching a mobile station to special teleterminal adapter a local subscriber status is given to the mobile terminal.

Abstract: A method and apparatus used by a communication system (100) to optimize the re-registration of communication system users that use a variable speed multiple-user communication unit (VSMCU) (110). VSMCUs (110) can be located on mobile vehicles, these mobile vehicles can move at different speeds at different times. VSMCUs (110) can collect registration information, obtain velocity information, determine re-registration distances, and determine re-registration factors. VSMCUs (110) send re-registration factors to the system. The system uses the re-registration factors to determine a modified ring-alert area for the associated VSMCU.

Abstract: A first portable subscriber unit (122, 602) of a plurality of portable subscriber units transmits (504) an inbound message (400) on an inbound channel. The inbound message is intended for a base receiver (616). The inbound message is received (506) by a second portable subscriber unit (606, 608) of the plurality of portable subscriber units. The second portable subscriber unit retransmits (520) the inbound message on the inbound channel only when a predetermined attribute of the inbound message satisfies (508, 510, 512, 514, 518) a predetermined condition.

Abstract: A method and apparatus for intercepting calls within a wireless communications system. In particular, the present invention provides a call intercept component and a number of control points. Each of the control points is associated with a layer or component within the wireless communications system that handles messages associated with a mobile station within the wireless communications system. Each control point monitors messages received at the component or layer associated with the control point. The messages are examined to determine whether the message is appropriate for interception. If the message is appropriate for interception, the message is then sent the call interception layer. In turn, the call interception layer formats data from the message and routes it to a destination.

Abstract: Radiotelephones with electrically and acoustically shielded microphones which have a conductive elastomer grommet positioned intermediate of the housing and the printed circuit board is disclosed. The grommet is sized and configured to hold the microphone therein. The grommet provides a continuous shield along the receiving signal path defined by the length of the microphone, any associated signal connector, and the printed circuit board.

Abstract: A display portion for displaying various messages for a carrier is provided on one side surface of a substantially-rectangular-parallelepiped radio apparatus main body. The display portion is composed of a main display area and a sub display area which is narrower than the main display area. Operation switches are provided at a lower part of one side surface of the radio apparatus main body. On the other hand, a hollow rectangular parallelepiped holster has engagement pieces for pushing switches in correspondence with the operation switches. When it is detected that the operation switches are pushed by the engagement pieces for pushing the switches, display by the display portion is controlled.

Abstract: A system (10) for remote convenience control of performance of a function includes a portable transmitter unit (14) and a receiver unit (18). In one embodiment, the system (10) is a remote convenience vehicle system. The transmitter unit (14) transmits a signal (16). The signal has a RF frequency at an unknown value within a range of values and conveys a message that contains a function request. Within the receiver unit (18) is superheterodyne circuitry (32) that has a mixer (44). The mixer (44) mixes a RF signal (42) coming from an antenna (28) and a reference frequency signal from a reference oscillator (46), and outputs an intermediate frequency signal (50) conveying the message. A bandpass filter (66) filters the intermediate frequency signal to pass a range of frequency values smaller than a known range of intermediate frequency values. Tuning control circuitry (70) automatically adjusting the bandpass range of the bandpass filter (66) to vary the bandpass range over the intermediate frequency range.

Abstract: A method is disclosed for operating a mobile station, the method including a first step of storing information in the mobile station, the stored information indicating a frequency of a digital control channel of at least one public cellular communications system in the vicinity of an autonomous communications system. The stored information further specifies a frequency channel associated with the autonomous communications system. The autonomous communications system is one of a private system or a residential system. A second step is executed upon a termination of a call using an analog voice channel or a digital traffic channel of a public cellular communications system, wherein the mobile station receives a message from the public cellular communications system, the received message including information indicating a frequency of a digital control channel of the public cellular communications system.

Abstract: A frequency conversion method and a frequency conversion circuit which enlarge the frequency difference between the upper and lower sidebands of the output signal so as to enable the undesired sideband to be easily eliminated by a filter even in a case where the frequency of the input signal is low. First, a first excitation signal having a first excitation frequency (Fp) is modulated by an input signal (a) of a predetermined frequency (F1) to produce two sidebands and thereby generate a first intermediate signal (b). Next, a second excitation signal having a second excitation frequency (Fq) lower than the first excitation frequency (Fp) by exactly a frequency twice the frequency of the input signal (a) is modulated by the input signal (a) to produce two sidebands and thereby generate a second intermediate signal (c).

Abstract: A system and method is implemented within a telecommunications network, such as a cellular telephone network, for maintaining updated profile information for each mobile subscriber registered within the network. Updated profile information about each mobile subscriber is maintained within a particular mobile switching center currently communicating with the particular mobile subscriber. This process is performed with minimal utilization of bandwidth between the various mobile switching centers in the telecommunications network by maintaining subscriber service profile information within mobile switching centers, even though the associated mobile subscriber has roamed from that mobile switching center. When the subscriber service profile information is updated, then the subscriber service profile information is downloaded to a mobile switching center currently serving the mobile subscriber.

Abstract: A method and apparatus for enabling a call connection between a calling and a called party via a roamer port is disclosed. When a calling party attempts to contact the mobile station via the roamer port, a determination is made as to whether or not the home location register associated with the mobile station accepts calls from the roamer port by accessing the database prior to attempted connections. Upon indicating that the home location register does not accept calls from the roamer port, call connection is discontinued.

Abstract: A method and apparatus for providing a call circuit connection between a mobile station and a remote application host is disclosed. Once a call circuit connection is initially established between a mobile station and remote application host to enable data to transfer therebetween, the call circuit connection is monitored for detection of an idle condition. Upon detection of the idle condition, identifying information for the call circuit connection is stored, and a first portion of the call circuit connection is disconnected while maintaining a second portion of the connection. Upon a request for reconnection of the call circuit connection, the first portion of the call circuit connection is reestablished with the second portion to enable continued data transfer.