Patents by Inventor Nancy R. Robins

Nancy R. Robins 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).

  • Gray level printing using a thermal printhead
    Patent number: 5374945
    Abstract: A method for gray level printing using a thermal printhead which includes characterizing the paper to be printed, defining a line of a gray scale image using bitplane data sets, entering the first of the bitplane data sets into a shift register, transferring the first of the bitplane data sets from the shift register to a latch, beginning to print a section of the line of the gray scale image using the first of the bitplane data sets in the latch, entering consecutively the remaining bitplane data sets in the shift register, transferring consecutively the remaining bitplane data sets to the latch, and completing the printing of the section of the line of the gray scale image. Multiple refreshing of data per segment printing enables less than 10 millisecond line (1728 bit) printing in 16 shade gray scale.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: December 20, 1994
    Assignee: Motorola, Inc.
    Inventors: Eduardo M. Molieri, Nancy R. Robins, Lauren M. Rust