Patents by Inventor Thaiyalan Appadurai

Thaiyalan Appadurai 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: 11412399
    Abstract: Systems, methods, and apparatus use a processor of a first device to wirelessly communicate with a second device using a first antenna. The processor selects the first antenna from a plurality of antennas based on comparing first antenna data associated with the first antenna with second antenna data associated with a second antenna.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: August 9, 2022
    Assignee: Cypress Semiconductor Corporation
    Inventors: Kaiping Li, Kamesh Medapalli, Jie Lai, Wenyu Liu, Thaiyalan Appadurai
  • Publication number: 20210185549
    Abstract: Systems, methods, and apparatus use a processor of a first device to wirelessly communicate with a second device using a first antenna. The processor selects the first antenna from a plurality of antennas based on comparing first antenna data associated with the first antenna with second antenna data associated with a second antenna.
    Type: Application
    Filed: December 7, 2020
    Publication date: June 17, 2021
    Applicant: Cypress Semiconductor Corporation
    Inventors: Kaiping Li, Kamesh Medapalli, Jie Lai, Wenyu Liu, Thaiyalan Appadurai
  • Patent number: 11032671
    Abstract: In an example embodiment, a device comprises one or more processors and a baseband controller. The one or more processors are configured to: determine, from a payload of at least one received packet, a channel identification (ID) of a notice window in a sequence of transmission windows; transmit, in the notice window, a notice packet that identifies a target window, the target window being later in the sequence of transmission windows than the notice window; generate a target packet that includes inverse whitened data; and transmit the target packet in the target window. The baseband controller is configured to execute signal whitening on the target packet, where the signal whitening of the inverse whitened data in the target packet results in a substantially sinusoidal signal when the target packet is transmitted by the device.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: June 8, 2021
    Assignee: Cypress Semiconductor Corporation
    Inventors: Walter James Wihardja, Victor Simileysky, Victor Zhodzishsky, Thaiyalan Appadurai
  • Patent number: 10869212
    Abstract: Systems, methods, and devices enable the implementation of antenna diversity techniques. Devices include a first wireless communications device that includes a plurality of antennas, and a transceiver coupled to the plurality of antennas and configured to send and receive data in accordance with a wireless transmission protocol, while the peer wireless communication device may have a single antenna or multiple antennas. Devices also include a processor configured to, in a first mode, calculate an angle of arrival (AoA) with the plurality of antennas or an angle of departure (AoD) associated with single antenna, and, in a second mode, send data to and receive data from a second wireless communications device via at least a first antenna of the plurality of antennas, where the first antenna is selected by the processor based on one of a first plurality of signal measurements between the first and second wireless communications devices.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: December 15, 2020
    Assignee: Cypress Semiconductor Corporation
    Inventors: Kaiping Li, Kamesh Medapalli, Jie Lai, Wenyu Liu, Thaiyalan Appadurai
  • Publication number: 20200112863
    Abstract: Systems, methods, and devices enable the implementation of antenna diversity techniques. Devices include a first wireless communications device that includes a plurality of antennas, and a transceiver coupled to the plurality of antennas and configured to send and receive data in accordance with a wireless transmission protocol, while the peer wireless communication device may have a single antenna or multiple antennas. Devices also include a processor configured to, in a first mode, calculate an angle of arrival (AoA) with the plurality of antennas or an angle of departure (AoD) associated with single antenna, and, in a second mode, send data to and receive data from a second wireless communications device via at least a first antenna of the plurality of antennas, where the first antenna is selected by the processor based on one of a first plurality of signal measurements between the first and second wireless communications devices.
    Type: Application
    Filed: September 17, 2019
    Publication date: April 9, 2020
    Applicant: Cypress Semiconductor Corporation
    Inventors: Kaiping Li, Kamesh Medapalli, Jie Lai, Wenyu Liu, Thaiyalan Appadurai
  • Publication number: 20200100067
    Abstract: In an example embodiment, a device comprises one or more processors and a baseband controller. The one or more processors are configured to: determine, from a payload of at least one received packet, a channel identification (ID) of a notice window in a sequence of transmission windows; transmit, in the notice window, a notice packet that identifies a target window, the target window being later in the sequence of transmission windows than the notice window; generate a target packet that includes inverse whitened data; and transmit the target packet in the target window. The baseband controller is configured to execute signal whitening on the target packet, where the signal whitening of the inverse whitened data in the target packet results in a substantially sinusoidal signal when the target packet is transmitted by the device.
    Type: Application
    Filed: October 18, 2019
    Publication date: March 26, 2020
    Applicant: Cypress Semiconductor Corporation
    Inventors: Walter James Wihardja, Victor Simileysky, Victor Zhodzishsky, Thaiyalan Appadurai
  • Patent number: 10511939
    Abstract: A method can include, by operation of a first device, generating sequence information for a plurality of sequential transmission windows, the sequence information including at least a channel identification (ID) corresponding to a base frequency for each window; generating payload data for a packet and wirelessly transmitting the packet in one of the windows, the payload data including sequence information for a window later in the sequence than the window in which the packet is transmitted. By operation of an application executed on a second device, a target packet can be composed that includes inverse whitened data; wherein the whitening of the inverse whitened data by the second device results in a substantially sinusoidal signal when the target packet is transmitted. The first device can determine a direction of the second device by processing the substantially sinusoidal signal. Devices for executing such a method are also disclosed.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: December 17, 2019
    Assignee: Cypress Semiconductor Corporation
    Inventors: Walter James Wihardja, Victor Simileysky, Victor Zhodzishsky, Thaiyalan Appadurai
  • Patent number: 10455442
    Abstract: Systems, methods, and devices enable the implementation of antenna diversity techniques. Devices include a first wireless communications device that includes a plurality of antennas, and a transceiver coupled to the plurality of antennas and configured to send and receive data in accordance with a wireless transmission protocol, while the peer wireless communication device may have a single antenna or multiple antennas. Devices also include a processor configured to, in a first mode, calculate an angle of arrival (AoA) with the plurality of antennas or an angle of departure (AoD) associated with single antenna, and, in a second mode, send data to and receive data from a second wireless communications device via at least a first antenna of the plurality of antennas, where the first antenna is selected by the processor based on one of a first plurality of signal measurements between the first and second wireless communications devices.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: October 22, 2019
    Assignee: Cypress Semiconductor Corporation
    Inventors: Kaiping Li, Kamesh Medapalli, Jie Lai, Wenyu Liu, Thaiyalan Appadurai