公开(公告)号：US20220301605A1

公开(公告)日：2022-09-22

申请号：US17204649

申请日：2021-03-17

Applicant: QUALCOMM Incorporated

Inventor： Seyed Arash MIRHAJ ,  Ankit SRIVASTAVA ,  Sameer WADHWA ,  Ren LI ,  Suren MOHAN

IPC: G11C7/12 ,  G11C7/18 ,  G11C7/10

Abstract: A compute-in-memory bitcell is provided that includes a pair of cross-coupled inverters for storing a stored bit. The compute-in-memory bitcell includes a logic gate formed by a pair of switches for multiplying the stored bit with an input vector bit. A controller controls the pair of switches responsive to a sign bit during a computation phase of operation and controls the pair of switches responsive to a magnitude bit during an execution phase of operation.

公开(公告)号：US20250107719A1

公开(公告)日：2025-04-03

申请号：US18478936

申请日：2023-09-29

Applicant: QUALCOMM Incorporated

Inventor： Ren LI ,  Qilin LU ,  Htet NAING ,  Samuel Jon EUBANKS ,  Kostadin Dimitrov DJORDJEV

IPC: A61B5/0225 ,  A61B5/00 ,  A61B5/021 ,  A61B5/022

Abstract: Devices and systems for controlling pressure during sensing are disclosed. Such sensors and/or systems may be embodied in a wearable user device. The wearable user device may include a cuff configured to apply a pressure to a portion of a user at a plurality of discrete pressure levels over a plurality of time periods; a biometric sensor configured to obtain a plurality of sensor measurements associated with a blood vessel of the user at corresponding ones of the plurality of discrete pressure levels during corresponding ones of the plurality of time periods; and a wearable structure including the cuff and the biometric sensor.

公开(公告)号：US20230004350A1

公开(公告)日：2023-01-05

申请号：US17367151

申请日：2021-07-02

Applicant: QUALCOMM Incorporated

Inventor： Ren LI

IPC: G06F7/523 ,  G06F3/06 ,  G06F7/50

Abstract: Certain aspects of the present disclosure provide a method, including: storing a depthwise convolution kernel in a first one or more columns of a CIM array; storing a fused convolution kernel in a second one or more columns of the CIM array; storing pre-activations in one or more input data buffers associated with a plurality of rows of the CIM array; processing the pre-activations with the depthwise convolution kernel in order to generate depthwise output; modifying one or more of the pre-activations based on the depthwise output to generate modified pre-activations; and processing the modified pre-activations with the fused convolution kernel to generate fused output.

公开(公告)号：US20210375306A1

公开(公告)日：2021-12-02

申请号：US16888522

申请日：2020-05-29

Applicant: QUALCOMM Incorporated

Inventor： Ren LI ,  Xiaofei CHEN ,  Murray JARVIS

IPC: G10L25/78 ,  G06N20/10 ,  G06F17/14

Abstract: Certain aspects of the present disclosure provide a method for performing voice activity detection, including: receiving audio data from an audio source of an electronic device; generating a plurality of model input features using a hardware-based feature generator based on the received audio data; providing the plurality of model input features to a hardware-based voice activity detection model; receiving an output value from the hardware-based voice activity detection model; and determining a presence of voice activity in the audio data based on the output value.

公开(公告)号：US20190272814A1

公开(公告)日：2019-09-05

申请号：US16417335

申请日：2019-05-20

Applicant: QUALCOMM Incorporated

Inventor： Hyun Jin PARK ,  Kwokleung CHAN ,  Ren LI

IPC: G10K11/178 ,  G10K11/00

Abstract: An adaptive active noise cancellation apparatus performs a filtering operation in a first digital domain and performs adaptation of the filtering operation in a second digital domain.

公开(公告)号：US20190005974A1

公开(公告)日：2019-01-03

申请号：US15635553

申请日：2017-06-28

Applicant: QUALCOMM Incorporated

Inventor： Magesh HARIHARAN ,  Stefan ROHRER ,  Ren LI ,  Matthew SIENKO ,  Arash MEHRABI ,  Ye HU ,  Stefan MUELLER

IPC: G10L19/16 ,  H04J3/02 ,  H04J3/22 ,  G10L19/008

Abstract: System, methods and apparatus are described that relate to aligning timing of bi-directional, multi-stream I2S audio transmitted between IC devices, and to support audio streams that are digitized using multiple sampling rates. A method includes time-division multiplexing a first stream of digitized audio data with a second stream of digitized audio data at a primary device to obtain a first multiplexed signal, transmitting the first multiplexed signal over a serial bus to a secondary device is configured to extract the first stream of digitized audio data from the first multiplexed signal and provide the first stream of digitized audio data to a first audio peripheral coupled to the secondary device, extracting the second stream of digitized audio data from the first multiplexed signal at the primary device, and providing the extracted second stream of digitized audio data to a second audio peripheral coupled to the first device