知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

19 records (took 0.041 seconds)

    TIMO: TIME INTERLEAVED MULTIPLE OUTPUTS FOR ENABLING MULTIPLEXING GAINS WITH A SINGLE RF CHAIN
    1.
    发明申请
    TIMO: TIME INTERLEAVED MULTIPLE OUTPUTS FOR ENABLING MULTIPLEXING GAINS WITH A SINGLE RF CHAIN 有权

    公开(公告)号：US20250158667A1

    公开(公告)日：2025-05-15

    申请号：US18722883

    申请日：2022-12-22

    Applicant: The Regents of the University of California

    Inventor： Agrim Gupta ,  Dinesh Bharadia

    IPC: H04B7/0413 ,  H04B1/00 ,  H04B7/08

    Abstract: In some embodiments, there may be provided systems, methods, and articles of manufacture for timeinterleaved multiple output. In some example embodiments, there may be provided an apparatus including a plurality of antennas; an analog spreader coupled the plurality of antennas; a radio frequency chain coupled to the analog spreader, wherein the radio frequency chain down converts and performs an analog-to-digital conversion to generate a stream; and a digital despreader, wherein the digital despreader receives the stream output by the radio frequency chain and digitally inverts analog spreading caused by the analog spreader to generate one or more user streams. Related systems, methods, and articles of manufacture are also disclosed.

    TERMINATION CIRCUIT FOR LOW POWER BACKSCATTER COMMUNICATION
    4.
    发明申请
    TERMINATION CIRCUIT FOR LOW POWER BACKSCATTER COMMUNICATION 有权

    公开(公告)号：US20220255587A1

    公开(公告)日：2022-08-11

    申请号：US17666198

    申请日：2022-02-07

    Applicant: The Regents of the University of California

    Inventor： Manideep Dunna ,  Miao Meng ,  Patrick P. Mercier ,  Dinesh Bharadia

    IPC: H04B5/00 ,  H04W52/02

    Abstract: termination circuits for backscatter communication in an integrated wake-up receiver tag device. A reflective termination circuit includes a first branch having an open load and a shorted load with first branch offset reflection coefficients and with a connection to an antenna. A second branch has a capacitive load and an inductive load with second branch offset reflection coefficients and with a connection to an antenna. A MIMO termination circuit includes plurality of transmission lines each providing a unique delay that is offset compared to other ones of the plurality of transmission lines. Switched connections to a corresponding array of antennas introduce a delay between a received and backscattered signal at each antenna in the array of antennas.

    SYNC SCATTER LOW POWER BACKSCATTER WAKE UP RECEIVER
    5.
    发明公开
    SYNC SCATTER LOW POWER BACKSCATTER WAKE UP RECEIVER 审中-公开

    公开(公告)号：US20240187986A1

    公开(公告)日：2024-06-06

    申请号：US18553617

    申请日：2022-03-31

    Applicant: The Regents of the University of California

    Inventor： Manideep Dunna ,  Miao Meng ,  Po-Han Peter Wang ,  Chi Zhang ,  Patrick Mercier ,  Dinesh Bharadia

    IPC: H04W52/02

    CPC classification number: H04W52/0216 ,  H04W52/0235

    Abstract: A method for waking a transceiver for communicating directly with commodity Wi-Fi transceivers (TRXs) via backscatter modulation in an integrated tag device includes sensing an incident Wi-Fi-compliant wake-up signal with a wake-up stage. Upon wake-up, a payload packet is sensed with a sync stage, the sync stage having higher bandwidth and power than the wake-up stage, the sync stage enabling a backscatter transmission circuit in sync with the payload. A backscatter transceiver includes a wake-up receiver having an energy-detection based architecture and having circuitry to conduct a counter-based wake up responsive to two pre-specified WiFi compatible packets. A sync receiver is enabled by the wake-up receiver upon reception of the two pre-specified WiFi compatible packets, the sync receiver including circuitry to detect a payload packet and create a backscatter enable signal synced with a payload of the payload packet. A backscatter transmitter is enabled by the backscatter enable signal.

Patent Agency Ranking