Dual-function control multiplexing switch circuit for buzzer and SATA hard disk indicator light
By combining hardware and software, the mutual exclusion control of the buzzer and SATA hard drive indicator light is achieved by using BIOS control level states. This solves the problems of design complexity and high cost in existing technologies, and realizes flexible switching between the buzzer and hard drive indicator light as well as energy saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN SHENTONG LINGKONG INTELLIGENT TECH CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-06-05
AI Technical Summary
In existing technologies, buzzers and SATA hard drive indicator lights typically occupy different pins, leading to increased design complexity and cost, and making it impossible to achieve both functions simultaneously without increasing the number of hardware pins.
By combining hardware and software, the buzzer and SATA hard drive indicator lights are mutually exclusive by using the multiplexed signal pin SATA_LED_SPK and the switching control pin SWITCH and the BIOS control level state, respectively driving the buzzer and indicator light functions in different states.
It enables flexible switching between the buzzer and SATA hard drive indicator without increasing the number of hardware pins, reducing costs, simplifying motherboard design, reducing static power consumption, meeting energy-saving and environmental protection standards, and supporting flexible adaptation to other reuse scenarios.
Smart Images
Figure CN224329449U_ABST