Alps Alpine had 23 patents in future of work during Q1 2024. Alps Alpine Co Ltd’s patent filed in Q1 2024 describes an audio system that detects speaker overheating and inputs an audio signal to a cooling processing section to output to the speaker. The cooling processing section mixes the audio signal with a cooling signal at an infrasonic frequency to cool the speaker effectively, with gain adjustments made accordingly. The gain setting section ensures that the power of the cooling signal matches the power of the low-frequency component for optimal performance. GlobalData’s report on Alps Alpine gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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Alps Alpine grant share with future of work as a theme is 60% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Audio system (Patent ID: US20240064462A1)
The patent filed by Alps Alpine Co Ltd. describes an audio system that includes a cooling processing section to prevent overheating of a speaker. When overheating is detected, the system switches the audio signal from the audio source device to the cooling processing section, which mixes the audio signal with a cooling signal at an infrasonic frequency to output to the speaker. The gain of the cooling signal is adjusted to match the power of the low-frequency component of the audio signal, ensuring effective cooling without compromising audio quality.
Additionally, the system includes features such as a sensor to detect speaker vibration, a signal corrector to cancel distortion based on the detected vibration, and a temperature detector to monitor speaker temperature. The controller switches between the audio signal and the cooling signal based on the speaker's temperature, ensuring optimal performance and protection against overheating. The gain adjuster and nonlinear inverse filter in the cooling processing section further enhance the system's ability to prevent distortion and maintain audio quality under varying conditions. Overall, the patent outlines a comprehensive audio system design that prioritizes speaker protection and sound quality through innovative cooling mechanisms and signal processing techniques.
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