Wisilica Inc.

Francis Antony

Suresh Kumar Singamsetty

Dennis Ching Chung Kwan

Manu Velayudhan

A method of transmitting a block from a bridge to a mesh network includes transmitting the block to at least a first node of a plurality of nodes, for distribution through the mesh network. The block includes a plurality of packets. The bridge receives, from the plurality of nodes, a plurality of status packets. Each status packet indicates reception status of the plurality of packets at a respective node of the plurality of nodes. The bridge selects at least a first packet of the plurality of packets for retransmission to the mesh network, based on the status packets. The bridge generates a retransmission block including at least the first packet. The first packet is included in the retransmission block a number of times based on the status packets. The bridge transmits the retransmission block to at least the first node, for distribution of the retransmission block through the mesh network.

Secure over the air upload mechanism for wireless mesh nodes

In some configurations, the method of operating a system with dynamic wireless network topology with reduced spectrum flooding involve scanning with a first device in mesh network for beacon packets from other devices in the mesh network during a random back off period. In response to the first device not receiving a beacon packet from the other devices during the random back off period, the first device initiates an election protocol by sending an election protocol packet with its unique election protocol identifier to the other devices. In response to receiving a beacon packet from a second device, the first device stores the unique node identifier, assigns the second device as a leader node device, retransmits the unique node identifier of the second device and leader node information in a protocol packet. A command packet is communicated through the mesh network by way of at least one leader node device.

Dynamic wireless network topology for reduced spectrum flooding

A system integrates a wireless controller into a linear, alternating current-only driver. The system utilizes a light emitting diode driver to maintain a constant current to a light emitting diode when a current controller is operated by a pulse width modulated signal. The pulse width modulated signal to one or more light emitting diode circuits may be modified to reduce flicker, color mix, and temperature tune.

Integrating wireless controller and a linear driver for LED control

A system for providing location awareness in a building automation system includes a mesh network of lighting devices on a first floor of a building and a second mesh network of lighting devices on a second floor of the building each aggregating a tracking tag signals at a floor level gateway of the building automation system.

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Aluva, India

Francis Antony