Invention Grant
- Patent Title: Audio ground switch channel crosstalk cancellation technique
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Application No.: US17580505Application Date: 2022-01-20
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Publication No.: US12047758B2Publication Date: 2024-07-23
- Inventor: Vijayakumar Dhanasekaran
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM INCORPORATED
- Current Assignee: QUALCOMM INCORPORATED
- Current Assignee Address: US CA San Diego
- Agency: Loza & Loza, LLP
- Main IPC: H04R5/04
- IPC: H04R5/04 ; H03F3/45 ; H04R3/04

Abstract:
An aspect of the disclosure relates to an apparatus, including an audio interface including first and second outputs; a crosstalk cancelling circuit including first and second inputs coupled to the first and second outputs of the audio interface, respectively; a first summer including a first input coupled to the first output of the audio interface and a second input coupled to a first output of the crosstalk cancelling circuit; a second summer including a first input coupled to the second output of the audio interface and a second input coupled to a second output of the crosstalk cancelling circuit; a first digital to analog converter (DAC) including an input coupled to an output of the first summer; and a second DAC including an input coupled to an output of the second summer.
Public/Granted literature
- US20230232155A1 AUDIO GROUND SWITCH CHANNEL CROSSTALK CANCELLATION TECHNIQUE Public/Granted day:2023-07-20
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