Abstract: Power supply and method for supplying power. One example power supply includes a first power source, a second power source, and a control circuit. The first power source provides electrical current to a first power output terminal. The first power source also provides electrical current to a second power output terminal. The second power source has a voltage level that is lower than the first power source. The control circuit is configured to measure a load current supplied to the second power output terminal. The control circuit is also configured to compare the measured load current to a threshold. Responsive to detecting the measured load current being higher than the threshold, the control circuit is configured to connect the second power source to the second power output terminal to provide electrical current thereto.

Abstract: Power supply and method for supplying power. One example power supply includes a first power source, a second power source, and a control circuit. The first power source provides electrical current to a first power output terminal. The first power source also provides electrical current to a second power output terminal. The second power source has a voltage level that is lower than the first power source. The control circuit is configured to measure a load current supplied to the second power output terminal. The control circuit is also configured to compare the measured load current to a threshold. Responsive to detecting the measured load current being higher than the threshold, the control circuit is configured to connect the second power source to the second power output terminal to provide electrical current thereto.

Abstract: A device, system and method for dynamic channel assignment is provided. A communication device assigns one or more channels for use by one or more of a plurality of mobile radios in a geographic region around an incident location using one or more lists indicative of unusable channels in the geographic region, the one or more lists received by the plurality of mobile radios, the one or more channels assigned for use excluding the unusable channels in the geographic region.

Abstract: A battery operated portable communication device provides converged functionality while avoiding resets to the device. Composite logic circuitry formed of at least one comparator and a logic interface controls current limiting to a primary load formed of high power land mobile radio (LMR) devices and programming to secondary loads formed of non-LMR peripherals. At least one current limit control signal is used to control current to the primary load under high current mode operations. Another control signal provides an interruption alert to a slave processor for controlled programming of the secondary loads during the high current operations of the primary load. Current to the primary load is restored while the secondary load is interrupted. Operation of secondary load processes is resumed when the primary load ceases high power operation.

Abstract: Systems and methods for surveillance-assisted patrol. One system includes an image capture device associated with a location, a patrol object, and a server communicatively coupled to the image capture device and the patrol object. The server includes an electronic processor configured to receive geolocation data for the patrol object. The electronic processor determines, based on the data, whether the patrol object is within a predetermined distance from the location, and, in response to determining that the patrol object is within the predetermined distance, captures a reference image of the location via the image capture device. The electronic processor accesses a second image corresponding to the location, captured at a different time than the reference image. The electronic processor compares the reference image to the second image to determine a difference. The electronic processor, in response to determining the difference, transmits, via the transceiver, a patrol alert to an electronic device.

Abstract: Systems and methods for surveillance-assisted patrol. One system includes an image capture device associated with a location, a patrol object, and a server communicatively coupled to the image capture device and the patrol object. The server includes an electronic processor configured to receive geolocation data for the patrol object. The electronic processor determines, based on the data, whether the patrol object is within a predetermined distance from the location, and, in response to determining that the patrol object is within the predetermined distance, captures a reference image of the location via the image capture device. The electronic processor accesses a second image corresponding to the location, captured at a different time than the reference image. The electronic processor compares the reference image to the second image to determine a difference. The electronic processor, in response to determining the difference, transmits, via the transceiver, a patrol alert to an electronic device.

Abstract: A battery operated portable communication device provides converged functionality while avoiding resets to the device. Composite logic circuitry formed of at least one comparator and a logic interface controls current limiting to a primary load formed of high power land mobile radio (LMR) devices and programming to secondary loads formed of non-LMR peripherals. At least one current limit control signal is used to control current to the primary load under high current mode operations. Another control signal provides an interruption alert to a slave processor for controlled programming of the secondary loads during the high current operations of the primary load. Current to the primary load is restored while the secondary load is interrupted. Operation of secondary load processes is resumed when the primary load ceases high power operation.

Abstract: A device, system and method for dynamic channel assignment is provided. A communication device assigns one or more channels for use by one or more of a plurality of mobile radios in a geographic region around an incident location using one or more lists indicative of unusable channels in the geographic region, the one or more lists received by the plurality of mobile radios, the one or more channels assigned for use excluding the unusable channels in the geographic region.

Abstract: Methods and devices for battery capacity estimation. One embodiment provides a method for battery capacity estimation for a battery pack of an electronic device, the battery pack including a battery and a writeable memory. The method includes reading an accumulated charge count from the writeable memory and detecting a connection of the battery to a charger. The method also includes determining an initial state of charge of the battery when the connection of the battery to the charger is detected and determining a second state of charge of the battery. The method further includes determining a charge count change based on the initial state of charge and the second state of charge and determining a new accumulated charge count based on the charge count change and the accumulated charge count. The method also includes writing the new accumulated charge count to the writeable memory.

Abstract: A method and apparatus for determining whether to enable a functionality of a battery powered device upon connection to a battery is embodied by providing at least one voltage threshold in a memory of the battery that corresponds to a usable operating range limit of the battery and that is accessible by the battery powered device. Upon connection to the battery, the battery powered device acquires the voltage threshold or thresholds from the battery and programs itself with the threshold or thresholds. The battery powered device then compares a voltage of the battery to the threshold or threshold to determine whether the enable the functionality.

Abstract: A method and apparatus for adjusting transmission power in a portable two-way radio device allows the device to determine an expected battery voltage drop for a subsequent transmit event, based on present transmit power settings and battery impedance, and change the power setting for the subsequent transmit event if the battery voltage is likely to drop below a shutdown threshold at the present power setting or if the expected battery voltage drop will cause the battery voltage to be substantially above the shutdown voltage level and the present power setting is below an optimal level.

Abstract: A method and apparatus for determining whether to enable a functionality of a battery powered device upon connection to a battery is embodied by providing at least one voltage threshold in a memory of the battery that corresponds to a usable operating range limit of the battery and that is accessible by the battery powered device. Upon connection to the battery, the battery powered device acquires the voltage threshold or thresholds from the battery and programs itself with the threshold or thresholds. The battery powered device then compares a voltage of the battery to the threshold or threshold to determine whether the enable the functionality.

Abstract: A method and apparatus for adjusting transmission power in a portable two-way radio device allows the device to determine an expected battery voltage drop for a subsequent transmit event, based on present transmit power settings and battery impedance, and change the power setting for the subsequent transmit event if the battery voltage is likely to drop below a shutdown threshold at the present power setting or if the expected battery voltage drop will cause the battery voltage to be substantially above the shutdown voltage level and the present power setting is below an optimal level.