Patents by Inventor Dennis Ching Chung Kwan

Dennis Ching Chung Kwan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11444805
    Abstract: 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.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: September 13, 2022
    Assignee: WISILICA INC.
    Inventors: Francis Antony, Suresh Singamsetty, Dennis Ching Chung Kwan, Manu Velayudhan
  • Patent number: 11330397
    Abstract: A position tracking system for Tags to collect relative proximity to other Tags using received signal strength, with methods to reduce power consumption with controlled degradation in overall system performance such as location accuracy and frequency of location updates. Configurable parameters for control of tag functions facilitate performance tradeoffs against application requirements. System architecture using mobile phone and gateway for uploading data enables efficient upload of tag data without user intervention. Applications of the disclosure include self-quarantine, contact tracing, mother-infant pairing, location history tracking, and personnel-asset usage monitoring.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: May 10, 2022
    Assignee: TraceSafe Technologies, Inc.
    Inventors: Francis Antony, Suresh Singamsetty, Dennis Ching Chung Kwan, Sujith Balakrishnan, Manu Velayudhan
  • Publication number: 20210289319
    Abstract: A position tracking system for Tags to collect relative proximity to other Tags using received signal strength, with methods to reduce power consumption with controlled degradation in overall system performance such as location accuracy and frequency of location updates. Configurable parameters for control of tag functions facilitate performance tradeoffs against application requirements. System architecture using mobile phone and gateway for uploading data enables efficient upload of tag data without user intervention. Applications of the disclosure include self-quarantine, contact tracing, mother-infant pairing, location history tracking, and personnel-asset usage monitoring.
    Type: Application
    Filed: March 15, 2021
    Publication date: September 16, 2021
    Applicant: TraceSafe Technologies, Inc.
    Inventors: Francis Antony, Suresh Singamsetty, Dennis Ching Chung Kwan, Sujith Balakrishnan, Manu Velayudhan
  • Publication number: 20210044455
    Abstract: 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.
    Type: Application
    Filed: August 6, 2019
    Publication date: February 11, 2021
    Applicant: WiSilica Inc.
    Inventors: Francis Antony, Suresh Singamsetty, Dennis Ching Chung Kwan, Manu Velayudhan
  • Patent number: 10785672
    Abstract: 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.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: September 22, 2020
    Assignee: WiSilica Inc.
    Inventors: Dennis Ching Chung Kwan, Suresh Kumar Singamsetty
  • Patent number: 10736177
    Abstract: 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.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: August 4, 2020
    Assignee: WiSilica Inc.
    Inventors: Dennis Ching Chung Kwan, Suresh Kumar Singamsetty, Francis Antony
  • Publication number: 20200125175
    Abstract: A system and method receive a selection input and an action input from different sets of sensors. The inputs are associated with a device, an action is selected for the device, and a control signal is sent to the device to operate the device. The sensors may receive signals including voice commands, gestures, and location information. The system and method may also be applied to select multiple devices and perform actions on each of the devices.
    Type: Application
    Filed: October 17, 2018
    Publication date: April 23, 2020
    Inventors: Dennis Ching Chung Kwan, Suresh Kumar Singamsetty
  • Patent number: 10595362
    Abstract: Systems and methods for the periodic creation of wireless mesh networks are disclosed. In order to save power the nodes in the mesh network may periodically switch from being in a broadcast mode and a skip cycle. When in the broadcast mode the node may cycle broadcasting new IDs in order to prevent spoofing.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: March 17, 2020
    Assignee: WiSilica Inc.
    Inventors: Suresh Kumar Singamsetty, Dennis Ching Chung Kwan
  • Publication number: 20200084654
    Abstract: 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.
    Type: Application
    Filed: September 11, 2018
    Publication date: March 12, 2020
    Inventors: Dennis Ching Chung Kwan, Suresh Kumar Singamsetty
  • Publication number: 20200084833
    Abstract: 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.
    Type: Application
    Filed: October 1, 2018
    Publication date: March 12, 2020
    Inventors: Dennis Ching Chung Kwan, Suresh Kumar Singamsetty, Francis Antony
  • Patent number: 10587480
    Abstract: A user interface for controlling multiple devices connected in a mesh network. The user interface may dynamically respond to the devices connected in the mesh network. The user interface may respond to devices based on their proximity or location. The user interface may allow for grouping of device controls.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: March 10, 2020
    Assignee: WiSilica Inc.
    Inventors: Suresh Kumar Singamsetty, Dennis Ching Chung Kwan
  • Patent number: 10491416
    Abstract: This disclosure provides a system of intelligent lights together with control devices and sensors communicating over a wireless network, with methods to allow the lights to take actions based on logical combinations of events generated by other devices. The lights can function autonomously as they have built-in functions of logic processing, storage and wireless communications which allow them to receive events and take actions according to the stored logic configuration data. Complete freedom in the grouping of lights as well as association of control devices and sensors to each individual lights is enabled by this system architecture. Seamless communication coverage is enabled by a wireless protocol that allows the light to form a mesh network.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: November 26, 2019
    Assignee: WiSilica Inc.
    Inventors: Suresh Kumar Singamsetty, Dennis Ching Chung Kwan
  • Patent number: 10489620
    Abstract: A system and apparatus for assessing whether a personnel has complied with sanitation protocols. The system may incorporate wearable tags on each personnel which can communicate with a mesh network to confirm presence of the personnel. In an embodiment, a soap dispenser may be part of the mesh network such that, when the dispenser is activated, a personnel's presence is detected and recorded.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: November 26, 2019
    Assignee: WiSilica Inc.
    Inventors: Dennis Ching Chung Kwan, Suresh Kumar Singamsetty
  • Patent number: 10492280
    Abstract: 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.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: November 26, 2019
    Assignee: WiSilica Inc.
    Inventors: Dennis Ching Chung Kwan, Suresh Kumar Singamsetty, Francis Antony
  • Patent number: 10455048
    Abstract: A method for storing large amounts of data on a wireless device, said method comprising the steps of placing a wireless device on a wireless transmission unit; initializing the wireless device for transmission of data; authenticating the wireless device with an associated account or profile; verifying the storage capacity of the wireless device; determining what wireless standard is implemented by the device; and transmitting data to the wireless device; whereby the transmitted information may be later viewed and or accessed locally from the wireless device.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: October 22, 2019
    Assignee: WISILICA INC.
    Inventors: Suresh Kumar Singamsetty, Dennis Ching Chung Kwan
  • Patent number: 10419889
    Abstract: 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.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: September 17, 2019
    Assignee: WiSilica Inc.
    Inventors: Suresh Singamsetty, Dennis Ching Chung Kwan, Francis Antony
  • Patent number: 10349366
    Abstract: An activity monitoring system comprising a plurality of wireless units wherein a first wireless unit comprises a wireless transceiver to broadcast at least one timing signal; a second wireless unit comprises: a wireless transceiver to receive at least one signal; a monitoring device that generates monitoring data; a memory to store the monitoring data; a processor to synchronize a time with the corresponding monitoring data; and wherein the second wireless unit: processes the received timing signal from the first wireless unit; synchronizes the monitoring data with the timing signal resulting in a time-synchronized data stream.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: July 9, 2019
    Assignee: WISILICA INC.
    Inventors: Dennis Ching Chung Kwan, Suresh Kumar Singamsetty
  • Publication number: 20190141484
    Abstract: 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.
    Type: Application
    Filed: December 17, 2018
    Publication date: May 9, 2019
    Inventors: Suresh Singamsetty, Dennis Ching Chung Kwan, Francis Antony
  • Publication number: 20190036722
    Abstract: This disclosure provides a system of intelligent lights together with control devices and sensors communicating over a wireless network, with methods to allow the lights to take actions based on logical combinations of events generated by other devices. The lights can function autonomously as they have built-in functions of logic processing, storage and wireless communications which allow them to receive events and take actions according to the stored logic configuration data. Complete freedom in the grouping of lights as well as association of control devices and sensors to each individual lights is enabled by this system architecture. Seamless communication coverage is enabled by a wireless protocol that allows the light to form a mesh network.
    Type: Application
    Filed: October 19, 2015
    Publication date: January 31, 2019
    Inventors: Suresh Kumar Singamsetty, Dennis Ching Chung Kwan
  • Patent number: 10194276
    Abstract: A tag signal from a tracking tag is received at a mesh node. Tag data is forwarded from a mesh node to a gateway, and from the gateway to an application layer in a server. Tag information is calculated by the application layer in the server. The tag information is transmitted back to the gateway, and from the gateway to the node.
    Type: Grant
    Filed: September 24, 2017
    Date of Patent: January 29, 2019
    Assignee: WiSilica Inc.
    Inventors: Suresh Kumar Singamsetty, Dennis Ching Chung Kwan