Wistron has been granted a patent for a hot plug control signal generator that includes a controller and a latch. The system generates a hot plug control signal, which is initially set to a disabled state and maintained through a series of circuits and switches based on operational power. GlobalData’s report on Wistron gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Wistron, Device power optimization was a key innovation area identified from patents. Wistron's grant share as of June 2024 was 77%. Grant share is based on the ratio of number of grants to total number of patents.
Hot plug control signal generator and method
The patent US12047070B2 describes a hot plug control signal generator designed to manage the hot plug functionality in electronic devices. The generator includes a controller that provides a control signal and a latch that operates based on an operational power source to produce a hot plug control signal. The latch is configured to set the control signal to a disabled first logic value and maintain this state. It comprises multiple pull-up circuits, switches, and a logic gate that performs a logic operation—specifically a logic AND operation—on the voltages from the pull-up circuits to generate the hot plug control signal. Additionally, the design includes a latch release device that can short circuit the output to reset the latch state when necessary.
The patent further details the integration of the hot plug control signal generator within a main board, which also features a hot swap controller that receives the generated control signal. In scenarios where an abnormal condition occurs on the main board, the controller can trigger the latch to maintain the hot plug control signal at the first logic value. The generator can receive operational power from either a battery or an external source, and it includes a reset-set flip-flop mechanism to manage the latch state effectively. Upon restarting the operational power, the latch state can be released, allowing for normal functionality to resume. This innovation aims to enhance the reliability and safety of hot plug operations in electronic systems.
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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.
