Patents by Inventor Changguo Mike Yang

Changguo Mike Yang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Reflective type media sensing methodology
    Patent number: 6386676
    Abstract: A printer, which can detect a media sheet type, includes: a light emitting source and a reflector, the light emitting source being capable of emitting light in a light emission direction towards the reflector, the reflector being arranged in light emission direction and being capable of reflecting light emitted by the light emitting source in a light reflection direction; a detector being arranged such that it can detect reflected light; and a controller connected to the reflector, the controller being capable of modulating a characteristic of the reflected light.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: May 14, 2002
    Assignee: Hewlett-Packard Company
    Inventors: Changguo Mike Yang, Chen Liu, Seng San Koh