Cirrus Logic had 18 patents in mobile during Q4 2023. The patents filed by Cirrus Logic Inc in Q4 2023 include circuitry for acoustic crosstalk cancellation between two audio signals, circuitry for resistance measurement of an electrochemical cell, circuitry for impedance determination of an electrochemical cell, and signal processing circuitry for masking transients in an input signal. These inventions aim to improve audio quality, optimize electrochemical cell performance, and enhance signal processing capabilities. GlobalData’s report on Cirrus Logic gives a 360-degreee view of the company including its patenting strategy. Buy the report here.
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Cirrus Logic grant share with mobile as a theme is 38% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Acoustic crosstalk cancellation (Patent ID: US20230421951A1)
The patent filed by Cirrus Logic Inc. describes circuitry for acoustic crosstalk cancellation between two audio signals, utilizing crosstalk cancellation circuitry and output stage circuitry. The crosstalk cancellation circuitry generates signals based on the input audio signals and adjusts parameters based on user position, volume settings, and operational parameters of the output stage circuitry. Additionally, the system includes user position detection circuitry, filters for adjusting filter coefficients based on user position, and monitoring circuitry to prevent saturation of the output stage circuitry by adjusting crosstalk cancellation signal levels.
Furthermore, the circuitry includes input filter circuitry for sub-band signal generation, equalization circuitry for adjusting audio signals, and the ability to adjust crosstalk cancellation signal levels based on volume settings and output stage saturation indications. The system is designed to be integrated into various host devices such as laptops, gaming consoles, mobile phones, and VR/AR devices, providing an efficient solution for enhancing audio quality by canceling acoustic crosstalk between different audio signals. The patent also covers a crosstalk cancellation system with variable cancellation levels based on volume settings, crosstalk signal levels, and output stage operational parameters, offering a comprehensive solution for optimizing audio output in various devices.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
