Abstract: The present invention provides a method for redirecting a calling phone from a finder service to a destination phone. A communication system receives a request to generate a set of destination names at the finder service from the calling phone. If the calling phone is capable of processing IP data, the communication system sends a text-based menu interface including the set of destination names to the calling phone. The calling phone may send a menu response indicating one of the set of destination names to the communication system. The communication system receives the menu response from the calling phone and redirects the calling phone to the destination name.

Abstract: The present invention provides a method for limiting the number of simultaneous call forwarding attempts for a mobile unit. A call is made for a mobile unit. The call request is sent to the MSC associated with the mobile unit. When the mobile unit is not currently active at the MSC, the MSC sends a location request to an SCP. The SCP responds with a return message that includes a temporary location directory number (TLDN) and an indicator. The MSC checks the current number of simultaneous call forwarding attempts being made for the mobile unit. If the current number of simultaneous call forwarding attempts exceeds a threshold, the MSC does not forward the call. If the number of simultaneous attempts does not exceed a threshold, the MSC forwards the call to the mobile unit by sending it to the TLDN.

Abstract: A method for retaining data during switchover from an active processor to a standby processor in a system having redundant processors. The method comprises the steps of performing periodic data collection as a first independent task executing on the active processor, and performing memory operations as a second independent task executing on the active processor. The method may further include the step of performing data transfer operations as part of the second independent task. Performing memory operations may further include writing collected data elements to both a first memory partition associated with the active processor, and a second memory partition associated with the standby processor. Performing data transfer operations may comprise transmitting collected data elements to the standby processor over a dedicated communication link.

Abstract: A polarized organic photonics device, including an LED or photovoltaic device, is comprised of a first conductive layer or electrode coated with a friction transferred alignment material, a photoactive material, and a second electrically conductive layer or electrode. The alignment material provides for the orientation of the subsequently deposited photoactive material such that the photoactive material interacts with or emits light preferentially along a selected polarization axis. Additional layers and sublayers optimize and tune the optical and electronic responses of the device.

Abstract: The present invention provides a method and Mobile Switching Center (MSC) for re-establishing a call in a communication system. The MSC receives from a network element a callback request to re-establish a call, such as an emergency call, between the network element and a mobile unit. The callback request includes a callback number. The MSC determines whether the callback number can be used to alert the mobile unit. If the callback number cannot be used to alert the mobile unit, the MSC determines an identification number of the mobile unit. The MSC then alerts the mobile unit by utilizing the identification number of the mobile unit and re-establishes the call on the original call path between the mobile unit and the network element.

Abstract: The present invention provides a method for determining whether to wake up a mobile station. The mobile station includes first configuration parameters relating to a base station. The method includes the steps of receiving a configuration change indicator at the mobile station. The configuration change indicator is indicative that the first configuration parameters relating to the base station are different than second configuration parameters that currently relate to the base station. The method further includes waking up the mobile station to receive the second configuration parameters.

Abstract: The present invention provides a method, apparatus, and communication system (100) for determining the status of a transmission link (108) between a first port (105) of a first device (104) and a second port (107) of a second device (106). The communication system (100) includes a management device (102). The management device (102) includes an input port (103) and a processor (116). The management device (102) receives a first status of the first port (105) and a second status of the second port (107) on the input port (103). The management device (102) calculates at the processor (116) the status of the transmission link (108) based on the first status and the second status.

Abstract: A method and system for determining the high speed data service capability of a subscriber line includes sending an embedded test signal to a subscriber line. A reflected signal received in response to the test signal is analyzed for determining transmission characteristics of the subscriber line. Based on the reflected signal, a determination about the high speed data service capabilities of the subscriber line is made and stored for future reference.

Abstract: A frequency synthesizer of the phase locked loop type and particularly useful for frequency hopping applications includes means (8) for achieving fast frequency and phase lock. In one embodiment the synthesizer is steered to a new frequency value by a DAC 10 which controls a VCO (5) input voltage. Subsequently, the phase of the synthesizer output is locked to that of the reference frequency oscillator (1) by resetting the feedback frequency divider (6) at the point in time when a rising edge of the reference frequency is detected. In a second embodiment, rapid frequency and phase lock is achieved by resetting the feedback frequency divider (6) on every rising edge of the reference frequency while the feedback loop is disabled, until the detected phase difference between the reference frequency and the divided VCO frequency reaches a minimum value.

Abstract: A self-adaptive handover determination device (5) functions by taking into account by how much a handover threshold is exceeded based on a received quality or signal strength measurement. Averaged signal measurements are compared (7) with a first threshold (8) and those exceeding it are summed (9) and further compared (10) with a second threshold (11) which sets the handover trigger level. The invention has the advantages of a reduced call drop rate and of enabling a fast handover when the communication's link suffers a rapid deterioration in quality.

Abstract: The present invention provides a method and apparatus for backhauling data in a communication system (100). A plurality of quality metrics are received at a centralized controller (105) from a plurality of base stations (101-104). The quality metrics are related to a data frame transmitted to the base stations (101-104) from a remote unit (113). A preferred data frame is determined from among the data frames. The centralized controller (105) then signals the base station associated with the preferred data frame to send the preferred data frame to the centralized controller.

Abstract: A method and system for responding to security system inoperability due to damage of a telecommunications line interconnecting the security system to its central monitoring service system requires origination of a wireless telephone call. A wireless unit is interconnected to the security system and originates an emergency call upon detection of telecommunications line abnormalities. Upon establishing a call connection between the wireless unit and the central monitoring service system, the wireless unit relays dual tone multifrequency (DTMF) signals which identify the security system affected by the breach so that appropriate authorities may be dispatched. In alternative embodiments, the wireless unit is programmed to place calls to other designated telephone numbers.

Abstract: The system of the invention passes wireless caller location information through the common channel signaling network (CCSN) to the PSAP such that the PSAP can provide enhanced emergency services. The caller location information such as the latitude and longitude of the wireless device or the cell and cell sector from which a call is made is encoded in the ISUP (ISDN User Part) of the call set up message over the CCSN. The public switched network routes the call based on the called party number (CDPN) parameter to the appropriate selective router and the selective router routes the call to the appropriate PSAP based on the caller location. The caller location information is transmitted over an ISDN interface to the PSAP. The PSAP can then access additional caller information based on the CDPN parameter to provide enhanced emergency services. Thus, the system of the invention allows enhanced 9-1-1 service to be provided in wireless systems while utilizing existing wireless infrastructure and protocols.

Abstract: The present invention provides a two-phase thermosyphon (100) that includes a sealed housing (105). The housing (105) includes a first outer surface, a second outer surface opposite the first outer surface, a first inner surface, and a second inner surface. The housing (105) is preferably formed of a first housing piece and a second housing piece that are attached in such a way as to form a sealed housing. A porous structural material (101) is disposed within the housing (105). A plurality of slots (103) are disposed within the porous structural material (101). The slots (103) preferably run substantially perpendicular to the general direction of vapor flow through the porous structural material (101) and provide increased heat dissipation in the two-phase thermosyphon (100).

Abstract: The present invention provides a method for positioning GSM mobile stations. Positioning information for a Mobile Station (102) is requested by a Base Station Subsystem (117) from Location Determination Equipment (113). The Location Determination Equipment (113) return signal measurements relating to the Mobile Station (102) to the Base Station Subsystem (117). The Base Station Subsystem (117) requests a location calculation from a Mobile Positioning Register (111). The Mobile Positioning Register (111) computes the position of the mobile station (102) based at least in part upon the signal measurements. The position of the Mobile Station (102) is then returned to the Base Station Subsystem (117).

Abstract: The present invention provides a communication system (100) and a method for determining when a communication unit (105) is located within a preferred zone in the cellular communication system (100). The cellular communication system (100) includes a plurality of cells. A preferred zone for a communication unit (100) is created. Radio characteristics associated with the preferred zone, such as pilot signal, cell ID, and distance, are obtained. It is then determined, based at least in part upon the radio characteristics, when the communication unit (100) is located within the preferred zone.

Abstract: The present invention provides an apparatus (200) that includes a heat-generating component (202) and a heat-dissipating apparatus (120). The heat-generating component (202) is mounted on a substrate (204). The heat-dissipating apparatus (120) includes a housing piece (100) that includes a sealed chamber (102) and a phase change material (106) disposed within the sealed chamber (102). The heat-dissipating apparatus (120) is thermally coupled to the heat-generating component (202) and provides for heat dissipation by an endothermic process of changing phase from solid to liquid, thereby lowering the operating temperature of the heat-generating component (202).

Abstract: The present invention provides a method for changing communication in a communication system (100). The communication system (100) includes a base station subsystem (102) and a mobile switching center (120). The base station subsystem (102) includes a first transcoder (108) and a second transcoder (109) connected to the mobile switching center (120), a first base station controller (106) connected to a first transcoder (108), a second base station controller (107) connected to a second transcoder (109), and a base transceiver station (104) connected to the first base station controller (106) and the second base station controller (107). A communication is established between a mobile station and the mobile switching center (120). The communication travels to the mobile switching center (120) via a first link (110) that includes the first base station controller (106).

Abstract: The present invention provides a method for extending the cell radius between a mobile station (101) and a base station (103). A propagation delay is determined between the mobile station (101) and the base station (103). A transmit time offset is determined for the mobile station (101). The transmit time offset is based at least in part upon the propagation delay. Information is then transmitted between the mobile station (101) and the base station (103) at the transmit time offset.

Abstract: The present invention provides a method for determining whether to handoff in a wireless communication system (100). The system (100) collects first environmental variables related to a first mobile station (105) within the wireless communication system (100). The system (100) determines when a communication between a base station (101) and the first mobile station (105) is improperly terminated. The system (100) analyzes, when the communication is improperly terminated, the first environmental variables to generate environmental conditions rules. The system (100) then applies the environmental conditions rules to a second mobile station (106) which subsequently communicates with the base station (101) and which has second environment variables substantially similar to the first environmental variables.