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    Convolutional Neural Networks In The Spectral Domain
    1.
    发明申请
    Convolutional Neural Networks In The Spectral Domain 有权

    公开(公告)号：US20210390388A1

    公开(公告)日：2021-12-16

    申请号：US16901637

    申请日：2020-06-15

    Applicant: Silicon Laboratories Inc.

    Inventor： Javier Elenes ,  Praveen Vangala

    IPC: G06N3/08 ,  G06N3/04 ,  G06F17/14

    Abstract: A system and method of implementing a convolutional neural network in the spectral domain is disclosed. Rather than performing convolution operations in the spatial domain, the inputs to the convolutional layer and the filter kernels are zero-padded and converted into the spectral domain. Once in the spectral domain, element wise multiplications are performed. The inverse Fourier Transform of the final output is then taken to return to the spatial domain. In certain embodiments, all filter kernels are learned in the spatial domain and are converted to the spectral domain at inference time in the convolutional neural network. In some embodiments a dimensionality reduction operation is applied in the spectral domain. In some embodiments, the conjugate symmetric filter kernels are learned directly in the spectral domain. In other embodiments, the learned spectral kernels apply various forms of dimensionality reduction such as puncturing, low-pass, high-pass, band-pass filtering operations.

    LOW POWER WAKE ON RADIO
    5.
    发明申请
    LOW POWER WAKE ON RADIO 有权

    公开(公告)号：US20210282088A1

    公开(公告)日：2021-09-09

    申请号：US17329496

    申请日：2021-05-25

    Applicant: Silicon Laboratories Inc.

    Inventor： Pio Balmelli ,  Praveen Vangala ,  John M. Khoury

    IPC: H04W52/02

    Abstract: A low power wake on radio circuit detects if an RF signal is present on an input to the wake on radio circuit. An RF sense circuit supplies an RF sense signal indicating whether the RF signal is present on the input. The RF sense signal is used to incrementally turn on digital decode logic to determine if a radio transmission that is unique to the wake on radio circuit has been received. If the unique radio transmission have been received, the wake on radio circuit supplies a wakeup signal to the rest of the system.

    Wireless receiver with automatic gain control optimization for sensitivity and distortion
    6.
    发明授权
    Wireless receiver with automatic gain control optimization for sensitivity and distortion 有权

    公开(公告)号：US10587295B1

    公开(公告)日：2020-03-10

    申请号：US16217494

    申请日：2018-12-12

    Applicant: SILICON LABORATORIES INC.

    Inventor： Terry Lee Dickey ,  Yan Zhou ,  Praveen Vangala

    IPC: H04B1/00 ,  H04B7/00 ,  H04B17/00 ,  H04B1/10

    Abstract: A wireless receiver including multiple amplifiers coupled in series for amplifying a signal being received, at least one detector that provides a strength indication of the signal being received, multiple AGC schedules each determining a gain reduction schedule for the amplifiers, an AGC schedule selector that selects one of the AGC schedules based on a schedule select input, and an AGC controller that adjusts a gain of at least one of the amplifiers according to a selected AGC schedule based on the strength indication of the signal being received. The AGC schedules may include a first AGC schedule configured for improved SNR performance and a second AGC schedule configured for improved distortion performance. The second AGC schedule may be selected for improved distortion performance when a strong distorting blocker signal is present, and otherwise the first AGC schedule may be selected for better SNR performance.

    Low power wake on radio
    7.
    发明授权
    Low power wake on radio 有权

    公开(公告)号：US12192903B2

    公开(公告)日：2025-01-07

    申请号：US17329496

    申请日：2021-05-25

    Applicant: Silicon Laboratories Inc.

    Inventor： Pio Balmelli ,  Praveen Vangala ,  John M. Khoury

    IPC: H04W52/02

    Abstract: A low power wake on radio circuit detects if an RF signal is present on an input to the wake on radio circuit. An RF sense circuit supplies an RF sense signal indicating whether the RF signal is present on the input. The RF sense signal is used to incrementally turn on digital decode logic to determine if a radio transmission that is unique to the wake on radio circuit has been received. If the unique radio transmission have been received, the wake on radio circuit supplies a wakeup signal to the rest of the system.

    Low power wake on radio
    9.
    发明授权
    Low power wake on radio 有权

    公开(公告)号：US11057834B2

    公开(公告)日：2021-07-06

    申请号：US16226423

    申请日：2018-12-19

    Applicant: Silicon Laboratories Inc.

    Inventor： Pio Balmelli ,  Praveen Vangala ,  John M. Khoury

    IPC: H04W52/02

    Abstract: A low power wake on radio circuit detects if an RF signal is present on an input to the wake on radio circuit. An RF sense circuit supplies an RF sense signal indicating whether the RF signal is present on the input. The RF sense signal is used to incrementally turn on digital decode logic to determine if a radio transmission that is unique to the wake on radio circuit has been received. If the unique radio transmission have been received, the wake on radio circuit supplies a wakeup signal to the rest of the system.

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