公开(公告)号：US20220247445A1

公开(公告)日：2022-08-04

申请号：US17156352

申请日：2021-01-22

Applicant: QUALCOMM Incorporated

Inventor： Matthew SIENKO ,  Peter SHAH ,  Francesco GATTA

IPC: H04B1/40 ,  H04L27/227

Abstract: A switching mixer array is disclosed for the mixing of a digital LO signal with an analog input signal. Each switching mixer in the array is configured to assume either a first switching state or second switching state responsive to a respective bit of the digital LO signal.

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