Mobile communication device and communication method
First Claim
Patent Images
1. A mobile communication device comprising:
- a processor;
a data acquisition device for acquiring data and providing it to the processor;
a transceiver for communicating with a central radio and a secondary communications device;
a first timer for counting down a first random delay time period and for temporarily shifting the processor and the transceiver from low-power sleep modes to active wake modes upon countdown of the first random delay time period so that the processor and transceiver can transmit at least some of the data to the central radio while in their active wake modes, wherein the first random delay time period is received from the central radio via the transceiver; and
a second timer for counting down a second random delay time period and for temporarily shifting the processor and the transceiver from low-power sleep modes to active wake modes upon countdown of the second random delay time period so that the processor and transceiver can communicate with the secondary communications device while in their active wake modes.
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Abstract
A mobile communication device includes a processor; a data acquisition device for acquiring data and providing it to the processor; a transceiver for transmitting at least some of the acquired data to an external device; and a low-power clock. The low-power clock counts down a random delay time period and temporarily shifts the processor and the transceiver from low-power sleep modes to active wake modes so that the processor and transceiver can transmit at least some of the acquired data to the external device while in their active wake modes.
9 Citations
21 Claims
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1. A mobile communication device comprising:
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a processor; a data acquisition device for acquiring data and providing it to the processor; a transceiver for communicating with a central radio and a secondary communications device; a first timer for counting down a first random delay time period and for temporarily shifting the processor and the transceiver from low-power sleep modes to active wake modes upon countdown of the first random delay time period so that the processor and transceiver can transmit at least some of the data to the central radio while in their active wake modes, wherein the first random delay time period is received from the central radio via the transceiver; and a second timer for counting down a second random delay time period and for temporarily shifting the processor and the transceiver from low-power sleep modes to active wake modes upon countdown of the second random delay time period so that the processor and transceiver can communicate with the secondary communications device while in their active wake modes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A mobile communication device comprising:
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a processor having a low-power sleep mode and an active wake mode; a data acquisition device for acquiring data and providing it to the processor; a transceiver for communicating with a central radio and a secondary communications device transceiver having a low-power sleep mode and an active wake mode; a first timer for counting down a first random delay time period and for shifting the processor and the transceiver from their low-power sleep modes to their active wake modes upon countdown of the first random delay time period so that the processor and transceiver can transmit at least some of the acquired data to the central radio while in their active wake modes; a second timer for counting down a second random delay time period and for shifting the processor and the transceiver from their low-power sleep modes to their active wake modes for a wake time period upon countdown of the second random delay time period so that the processor and transceiver can communicate with the secondary communications device while in their active wake modes, wherein if a secondary radio transmission is not received during the wake time period, the wake time period is increased and the second random delay time period is decreased; and a low-power wake-up circuit operable to receive a wake signal from the central radio and shift the processor and the transceiver to their active wake modes independent of the first and second random delay time periods. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of exchanging communications between a central radio and at least one mobile radio, the method comprising:
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counting down a random delay time in the mobile radio, the random delay time period received by the mobile radio from the central radio; upon expiration of the random delay time, switching a processor and transceiver in the mobile radio from low-power sleep modes to active wake modes; while the processor and transceiver are in their active wake modes, transmitting data from the mobile radio to the central radio and receiving communications at the mobile radio from the central radio, the communications including a new random delay time period; and switching the processor and the transceiver back to their low-power sleep modes. - View Dependent Claims (18, 19, 20, 21)
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Specification