Patent 8698543 was granted and assigned to Memsic on April, 2014 by the United States Patent and Trademark Office.
An interface within an electronic device coupled to a serial communications bus having one or more serial communications lines generates a reference voltage source within the electronic device from the logic signals carried on the serial communications line(s). The generated reference voltage source is used within the electronic device to decode the logic signals received from the serial communications line(s).