摘要:
Processing of dispatch calls in a simulcast multi-site communication system begins when a source communication unit transmits a message to one or more network receivers. The received signals are analyzed immediately at the received sites for signal quality. Each of the signals are time stamped to identify when they where received. The received signals are transported with their time stamp and signal quality metric to each of the other sites via a digital communication network connecting the sites. A master transmitter site determines the receiver source with the best quality signal as indicated by the signal quality metric. The master transmitter then transports the chosen best quality signal to each of the other sites via a digital communication network. Each transmitter site performs a transmit operation by storing the chosen best quality signal until it is time to transmit the signal in phase with all the other transmitter sites in a simulcast manner. The time stamp allows a time in the future to be chosen to accommodate the worst case expected transport delay through the digital network.
摘要:
Geographic reuse of frequencies within a multisite communication system are dynamically altered as a function of communication unit type. Since some communication unit types pose a smaller risk of interference, increased geographic reuse can be tolerated. Similarly, reuse can be diminished to accommodate communication unit types that pose a significant risk of interference over a wide geographic area.
摘要:
A bonding tool for bonding inner leads to semiconductor chips is arranged to capture and align elongated lead sections extending in any one of plural directions, and preferably, in any one of two mutually orthogonal directions. Thus, the tool can be applied to align and bond all of the leads to a chip without turning the tool or the chip even where the leads extend in multiple directions.
摘要:
Authentication of system status OSWs in a trunked communication system is provided by first verifying (411) that a received system ID (313) matches a pre-programmed system ID. A system status OSW must then be matched twice before the information in the system status OSW is programmed into a communication unit (115), thus limiting the possibility of false decoding of system status OSWs.
摘要:
A trunked communication system automatic system resource acquisition method and apparatus provide for utilizing dual system resource listings to monitor for priority communications within a primary geographic communication control area. System resources on a second listing have secondary geographic coverage areas substantially within a primary geographic communication control area, allowing communication units to receive priority transmission preferentially from secondary control system resources in a first listing and secondarily from primary control system resources in a second listing when secondary control system resources are not available.
摘要:
A method includes identifying a first user device potentially associated with a biohazard and identifying a geographic area associated with the biohazard based on previous location information of the first user device. The method further includes identifying a second user device potentially associated with the biohazard based on the geographic area associated with the biohazard and previous location information of the second user device. The method further includes issuing a safety notification to the second user device, where the safety notification includes one or more of the geographic area associated with the biohazard, a safety status request, a safety status level of the first user device, a subset of the previous location information of the first user device, and a subset of the previous location information of the second user device.
摘要:
A method begins with identifying a geographic area associated with an adverse condition and identifying a plurality of user devices of a social network potentially associated with the identified geographic area. The method continues with issuing a safety notification to the plurality of user devices. The method continues with receiving a first safety status response from a first user device and a second safety status response from a second user device, where the responses include location information of a first and second safe location. The method continues with issuing evacuation information to at least some of the plurality of user devices based on the location information of the first and second safe locations.
摘要:
A method begins by a processing module identifying a geographic area of an adverse condition and identifying a user device of a plurality of user devices potentially associated with the identified geographic area. The method continues with the processing module issuing a safety notification to the user device, where the safety notification includes one or more of the identified geographic area and a safety status request. The method continues with the processing module receiving, from the user device, a safety status response, where the safety status response includes at least one of location information generated by the user device and a safety status level generated by the user device. The method continues with the processing module indicating the safety status level.
摘要:
A method includes establishing information regarding a potentially adverse condition associated with one or more user devices. The information includes one or more of: geographic location coordinates of the potentially adverse condition, an identifier of the potentially adverse condition, and a relevant time period of the potentially adverse condition. The method further includes determining group constraints for a group regarding the potentially adverse condition. The group constraints include one or more of: family member devices, neighbor devices, friend devices, first responders, co-workers, and devices of other persons having an affiliating commonality. The method further includes selecting user devices to produce selected user devices. The selected user devices have an affiliation with the group. The method further includes obtaining status associated with the selected user devices and issuing the status to the selected user devices.
摘要:
A method begins with identifying a geographic area associated with an adverse condition and identifying a plurality of user devices of a social network potentially associated with the identified geographic area. The method continues with issuing a safety notification to the plurality of user devices. The method continues with receiving a first safety status response from a first user device and a second safety status response from a second user device, where the responses include location information of a first and second safe location. The method continues with issuing evacuation information to at least some of the plurality of user devices based on the location information of the first and second safe locations.