Patents by Inventor Folkhart Langfeldt

Folkhart Langfeldt 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).

  • Method and circuit arrangement for editing slanting characters, particularly handwritten characters
    Patent number: 4845768
    Abstract: An editing arrangement for character recognition has a binary coded character stored in a X/Y-addressable image signal memory from which signals are first read out column-by-column, whereby a first character shadow is formed from the result by projection of successive columns respectively comprising black points onto the character base line. The stored character pattern is then repeatedly read out in accord with a scanning at positive and/or negative oblique angles relative to the Y-axis until as minimum character shadow is produced. The scanned pattern yielding this minimum character shadow is then selected for further evaluation of the character.
    Type: Grant
    Filed: July 27, 1988
    Date of Patent: July 4, 1989
    Assignee: Computergesellschaft Konstanz
    Inventors: Wilfried Kochert, Folkhart Langfeldt