Patents by Inventor Ali Mirkamali

Ali Mirkamali 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: 11075465
    Abstract: Technologies for wireless network devices with surface-link antenna systems mounted on exterior surfaces of buildings are described. One wireless network device includes a housing with a circuit board and a first antenna port. A processor, a first antenna, a first wireless local area network (WLAN) radio, and a second WLAN radio are disposed on the circuit board. The first WLAN radio communicates with a radio of a client device using the first antenna over a first line-of-sight (LOS) or non-LOS wireless link (e.g., 2.4 GHz) inside the building. The second WLAN radio communicates with a radio of a second wireless network device using the second antenna over a second LOS wireless link (e.g., 5 GHz) that is external to the building. The first antenna is located inside the building and the second antenna is located along an exterior surface of the building.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: July 27, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Tzung-I Lee, Omar Fawazhashim Zakaria, Kwok Shing Lee, Kalyan Teja Posani, Ali Mirkamali, Cheol Su Kim, In Chul Hyun
  • Publication number: 20210176805
    Abstract: Technologies directed to a wireless network device with a single hardware architecture that supports multiple devices roles through software configuration are described. One wireless network device includes a housing with an RF connector and a circuit board with a first radio coupled to an internal antenna and a second radio coupled to an external antenna via the RF connector. The second antenna is mounted on an exterior surface of the building and coupled to the RF connector via an RF cable. The wireless network device establishes a first wireless link between the first radio and a radio of a second device via the first antenna and a second wireless link between the second radio and a radio of a third device via the second antenna. The second device can be a second wireless network device that is programmed to operate as a gateway, the gateway being mounted outside of the building.
    Type: Application
    Filed: December 9, 2019
    Publication date: June 10, 2021
    Inventors: Nathan Labadie, Reshma Suresh, Ali Mirkamali, Cheol Su Kim, Omar Fawazhashim Zakaria, Kwok Shing Lee, Kalyan Teja Posani
  • Patent number: 10855351
    Abstract: A wireless device includes a radio, a first directional antenna, a second directional antenna, an omnidirectional antenna, and a switch selectively coupled between the radio and the first directional antenna, the second directional antenna, and the omnidirectional antenna. A processor is coupled to the switch and to, for a frame: determine, based on an arbitration table, a destination medium access control address of a client wireless device and identifiers of antennas for transmitting the frame and receiving acknowledgement data; cause the switch to couple the radio to the first directional antenna; transmit the frame to the client wireless device via the first directional antenna, wherein the first client wireless device is located along a first direction with respect to the wireless device; cause the switch to couple the radio to the omnidirectional antenna; and receive an acknowledgment, corresponding to the frame, from the client wireless device via the omnidirectional antenna.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: December 1, 2020
    Assignee: Amazon Technologies, Inc.
    Inventors: Kun Ting Tsai, Kiran Kumar Edara, Sarang Wagholikar, Omar Fawazhashim Zakaria, Ashish Kumar Shukla, Tzung-I Lee, Ali Mirkamali
  • Patent number: 10616904
    Abstract: A device includes first and second directional antennas, an omnidirectional antenna, and a switch selectively coupled between the first directional and omnidirectional antennas. A first radio includes first RF circuitry. A switch selectively couples the first omnidirectional antenna or the first directional antenna to the first radio. A second radio is coupled to the second directional antenna and includes second RF circuitry. An application processor receives, from first RF circuitry, a first radio frequency performance indicator (RFPI) value for signals received over the omnidirectional antenna, a second RFPI value for signals received over the first directional antenna, and, from the second RF circuitry, a third RPI value for signals received over the second directional antenna. The application processor determines a best RFPI value, selects an antenna corresponding to the best RFPI value, and selects a radio corresponding to the selected antenna.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: April 7, 2020
    Assignee: Amazon Technologies, Inc.
    Inventors: Ali Mirkamali, Tzung-I Lee, Omar Fawazhashim Zakaria, Kalyan Teja Posani, In Chul Hyun, Cheol Su Kim
  • Publication number: 20200021038
    Abstract: Technologies for wireless network devices with surface-link antenna systems mounted on exterior surfaces of buildings are described. One wireless network device includes a housing with a circuit board and a first antenna port. A processor, a first antenna, a first wireless local area network (WLAN) radio, and a second WLAN radio are disposed on the circuit board. The first WLAN radio communicates with a radio of a client device using the first antenna over a first line-of-sight (LOS) or non-LOS wireless link (e.g., 2.4 GHz) inside the building. The second WLAN radio communicates with a radio of a second wireless network device using the second antenna over a second LOS wireless link (e.g., 5 GHz) that is external to the building. The first antenna is located inside the building and the second antenna is located along an exterior surface of the building.
    Type: Application
    Filed: July 13, 2018
    Publication date: January 16, 2020
    Inventors: Tzung-I Lee, Omar Fawazhashim Zakaria, Kwok Shing Lee, Kalyan Teja Posani, Ali Mirkamali, Cheol Su Kim, In Chul Hyun