Cirrus Logic had seven patents in internet of things during Q1 2024. Cirrus Logic Inc filed patents for circuitry related to audio amplification with common mode buffer, circuitry for measuring characteristics of an electrochemical cell with adjustable bias voltage, and circuitry for measuring characteristics of an electrochemical cell with a comparator and loop filter for feedback. GlobalData’s report on Cirrus Logic gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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Cirrus Logic grant share with internet of things as a theme is 57% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Audio amplifier circuitry (Patent ID: US20240097633A1)
The patent filed by Cirrus Logic Inc. describes circuitry with audio amplifier circuitry that receives an audio signal and outputs differential signals through first and second output nodes. The circuitry includes common mode buffer circuitry that can output a common mode voltage to the output nodes. Additionally, the circuitry features an output clamp switch, power supply input nodes, low pass filter circuitry, and digital to analogue converter (DAC) circuitry, among other components.
The claims detail various aspects of the circuitry, including the configuration of the audio amplifier circuitry, low pass filter discharge switch, common mode clamp switches, and clamp switches. The patent also covers the use of dummy output and feedback stages, real output and feedback paths, and differential or pseudo-differential amplifiers. The circuitry is designed to bias the amplifier unit during start-up, operate in normal conditions, and enter a mute state when no input signal is present. The patent further extends to integrated circuitry and devices such as mobile phones, computers, smart speakers, and headphones that incorporate the described circuitry. Overall, the patent outlines a comprehensive audio amplifier system with innovative features and functionalities for various applications in electronic 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.
