According to GlobalData’s company profile on China Pacific Insurance (Group), digital lending was a key innovation area identified from patents. China Pacific Insurance (Group)'s grant share as of June 2023 was 1%. Grant share is based on the ratio of number of grants to total number of patents.

Shield fault detection in cable connections

Source: United States Patent and Trademark Office (USPTO). Credit: China Pacific Insurance (Group) Co Ltd

A recently granted patent (Publication Number: US11689012B2) describes a method and system for shield fault detection in cable connection interfaces. The method involves detecting the rate of voltage change on a shield pin and comparing it to a reference slope. It also includes detecting whether a current is flowing through a power pin of the cable connection interface. Based on these detections, the method disconnects or connects the ground path of the shield pin.

The method further includes connecting the ground path of the shield pin if the rate of voltage change is below the reference slope. This additional step ensures proper grounding of the shield pin.

The patent claims that the rate of voltage change is compared to a linear reference slope. This allows for a more accurate assessment of the shield fault.

The method can be applied to various types of cable connection interfaces, including type-A USB ports, type-B USB ports, type-C USB ports, mini USB ports, micro USB ports, and lightning connectors. This broad applicability makes the method versatile and applicable to a wide range of devices.

The system described in the patent includes a slope detector, a current sense circuit, and a switch. The slope detector detects the rate of voltage change on the shield pin and compares it to the reference slope. The current sense circuit detects the presence or absence of current in the power pin. The switch is responsible for disconnecting or connecting the ground path of the shield pin based on the detected conditions.

Similar to the method, the system also includes the step of connecting the ground path of the shield pin if the rate of voltage change is below the reference slope. This ensures proper grounding in all scenarios.

The slope detector in the system compares the rate of voltage change to a linear reference slope, providing accurate fault detection.

Overall, this patent presents a method and system for shield fault detection in cable connection interfaces, offering a reliable solution for ensuring proper grounding and preventing potential electrical issues.

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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.