The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 2023
Filed:
Jan. 08, 2021
Autel Intelligent Technology Corp., Ltd., Guangdong, CN;
Sanbao Shi, Guangdong, CN;
Yang Li, Guangdong, CN;
AUTEL INTELLIGENT TECHNOLOGY CORP., LTD., Guangdong, CN;
Abstract
A CAN circuit structure and a vehicle diagnostic device are provided. The CAN circuit structure includes: a pair of data buses on which differential signals are transmitted; a CAN transceiver operating in a first voltage domain; a clamp circuit disposed between the CAN transceiver and the data buses for clamping a high level or a low level of the differential signals; a CAN controller operating in a second voltage domain; and a signal isolation circuit disposed between the CAN transceiver and the CAN controller for isolating the first voltage domain from the second voltage domain. The circuit allows for the use of a standard CAN transceiver chip that meets a general standard in a special CAN circuit structure, thus effectively reducing manufacturing costs of related devices.