Patent application number | Description | Published |
20120314739 | Radio Duty Cycle Minimization Techniques for Transmission-Initiated Wireless Multi-Hop Networks - The duration of receiver on-times may be minimized by sensing and reacting to communication channel power levels at intervals. When no energy is detected on the communication channel, then the receiver may be turned off for a channel sampling interval. If energy is detected on the channel, then the receiver may remain on to determine if a received message is associated with the device. Receiver on-time may also be minimized by adjusting the timing of messages used for broadcast messages sent by routing or other protocols. Broadcast messages, such as network routing topology messages, may be controlled in two phases. In a first phase, the broadcast messages are sent with at a high rate to allow nodes to join the network rapidly. In a second phase, the broadcast messages are sent with at a lower rate to minimize interference with data and other messages in the network. | 12-13-2012 |
20130179715 | SYSTEMS AND METHODS FOR REDUCING ENERGY CONSUMPTION IN SENSOR NETWORKS - A system includes a volatile memory and state information management logic. The volatile memory includes a plurality of volatile storage locations. The state information management logic includes memory write tracking circuitry coupled to the volatile memory. The memory write tracking circuitry is configured to identify locations of the memory written subsequent to restoration of state information to the volatile memory on exit of a low-power mode of operation, and to store indicia of the identified locations. | 07-11-2013 |
20130188670 | DYNAMIC IMPROVEMENT OF LINK SYMMETRY IN CO-LOCATED PLC AND RF NETWORKS - An electronic communication device comprises a first transceiver capable of a bi-directional communication session on a first communication medium; a second transceiver capable of a bi-directional communication session on a second communication medium; and a control logic coupled to the first transceiver and the second transceiver, wherein the control logic is configured to receive, from the first transceiver, a first signal, and cause, in response to the first signal, data transmitted by the first transceiver on the first communication medium as part of a communication session to be transmitted instead by the second transceiver on the second communication medium while the first transceiver continues to receive data as part of the communication session. | 07-25-2013 |
20130188673 | DYNAMIC MEDIUM SWITCH IN CO-LOCATED PLC AND RF NETWORKS - An electronic communication device comprises a first transceiver capable of a bi-directional communication session on a first communication medium; a second transceiver capable of a bi-directional communication session on a second communication medium; and a control logic coupled to the first transceiver and the second transceiver and capable of implementing a convergence layer, wherein the control logic is configured to receive, from the first transceiver, a first signal; and cause, in response to the first signal, data received and transmitted by the first transceiver on the first communication medium as part of a communication session to be received and transmitted instead by the second transceiver on the second communication medium. | 07-25-2013 |
20130198540 | Dynamic Power Management in Real Time Systems - Dynamically reducing power consumption by a processor in a computer system by determining a maximum number of times (token count) that the processor can incur a start-up delay after being placed into a low-power mode during a token period of time when executing a task for a token period of time. The processor may be placed into the low-power mode while executing the task in response to an idle indicator only if a current value of the token count assigned to the task is greater than zero. The current value of the token count is decremented each time the processor incurs a start-up delay in response to being awakened from the low-power mode. The current token count is reset to match the assigned token count at the end of each token period. Furthermore, wakeup may be anticipated to allow the processor to be awakened preemptively. | 08-01-2013 |
20130217399 | PARTIAL CHANNEL MAPPING FOR FAST CONNECTION SETUP IN LOW ENERGY WIRELESS NETWORKS - A system comprising a controller, a scanner, and a transceiver. The controller is configured to identify a number of channels in which a beacon signal may be wirelessly transmitted. The number of channels is less than a total number of channels available for receiving transmissions. The scanner is configured to scan each of the number of channels for a first beacon signal. The transceiver is configured to receive the first beacon signal from one of the number of channels. | 08-22-2013 |
20130250928 | SCHEDULING IN A MULTI-HOP WIRELESS NETWORK - Various techniques are disclosed for assigning timeslots in a multihop wireless network. One such method includes, for each node for uplink timeslot assignments, assigning a higher hop count node to a timeslot that is to occur before all time slots assigned to lower hop count nodes. The method further includes, for each node for downlink timeslot assignments, assigning a lower hop count node to a timeslot that is to occur before all time slots assigned to higher hop count nodes. | 09-26-2013 |
20130259016 | COEXISTENCE OF WIRELESS SENSOR NETWORKS WITH OTHER WIRELESS NETWORKS - A wireless device includes a wireless transceiver configured to transmit to and receive from nodes in a wireless sensor network (WSN) and control logic coupled to the first wireless transceiver. The wireless transceiver transmits a wireless packet to a node in the WSN based on the transmission coinciding with a break in transmissions for a second wireless network. Based on the wireless transceiver being configured to transmit the wireless packets utilizing time synchronized channel hopping, slot frames for packet transmissions in the WSN are time offset so as not to coincide with transmissions made on the second wireless network. Based on the wireless transceiver being configured to transmit the packets utilizing coordinated sampled listening, wake up sequence transmissions for the WSN are time offset so as not to coincide with the transmissions made on the second wireless network. | 10-03-2013 |
20130301453 | WIRELESS NETWORK WITH POWER AWARE TRANSMISSION CONTROL - A wireless device that tailors communications based on power parameters of the device. In one embodiment, a wireless device includes an energy source, a power monitor coupled to the energy source, a wireless transceiver, and a traffic controller coupled to the power monitor and the wireless transceiver. The power monitor is configured to measure a parameter of the energy source. The wireless transceiver is configured to wirelessly communicate via a wireless network. The traffic controller is configured to set length of packets to be transmitted based on the measured parameter of the energy source. | 11-14-2013 |
20130326523 | Resource Sharing Aware Task Partitioning for Multiprocessors - A multi processor task allocation method is described that considers task dependencies while performing task allocation in order to avoid blocking of a task's execution while waiting for the resolution of the dependency. While allocating the tasks to the processors the potential blocking time is considered, and the best allocation that will have the least amount of blocking time is found. | 12-05-2013 |