SEMICONDUCTOR COMPONENT AND ELECTRONIC DEVICE
DE602023004073T2Active Publication Date: 2025-06-18SEIKO EPSON CORP
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Patent Information
- Application Number
- DE602023004073
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2022-09-27
- Filing Date
- 2023-09-26
- Publication Date
- 2025-06-18
- Estimated Expiration
- 2043-09-26
AI Technical Summary
Technical Problem
Existing speaker failure notification devices require a dedicated physical quantity measuring device to apply an alternating-current voltage and measure impedance, resulting in a large circuit for impedance measurement.
Method used
A semiconductor device with a modulation circuit, amplifier circuits, and a peak frequency detection circuit that modulates signals for sound reproduction and generates test signals to detect the peak frequency of the sound reproduction device's impedance in a separate operation mode.
Benefits of technology
Enables accurate detection of the frequency range including the peak impedance frequency of the sound reproduction device, allowing for effective failure detection and reduced circuit size for peak frequency detection.
✦ Generated by Eureka AI based on patent content.
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