Patents by Inventor Yoh Ueda

Yoh Ueda 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).

  • Address reader, sorting machine such as a mail thing and character string recognition method
    Patent number: 6470091
    Abstract: An address reader method and apparatus for recognizing a receiver address on a surface of mail. An image of the surface of the mail is input and segmented into at least one character string candidate. At least one address area candidate is extracted from the image based upon the segmented character string candidate. One address area candidate extracted from the image is selected as a receiver address by analyzing each address area candidate based on predetermined position information indicating a usual position of a receiver address area, character direction information indicating a character direction of a character string appropriate for the predetermined position information, and key character string information indicating a character string most likely to exist in a receiver address. Characters in character strings of the selected address area candidate are recognized as a receiver address.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: October 22, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Masashi Koga, Tatsuhiko Kagehiro, Yoh Ueda, Shigeru Watanabe, Hiromichi Fujisawa
  • Address reader, sorting machine such as a mail thing and character string recognition method
    Patent number: 6291785
    Abstract: An address reader method and apparatus for recognizing a receiver address on a surface of mail. In the invention an image of the surface of the mail is input and segmented into at least one character string candidate. At least one address area candidate is extracted from the image based upon the segmented character string candidate. One of the address area candidates extracted from the image is selected as a receiver address of the mail by analyzing each of the address area candidates based on predetermined position information indicating a usual position of a receiver address area, character direction information indicating a character direction of a character string appropriate for the predetermined position information, and key character string information indicating a character string most likely to exist in a receiver address. Characters in character strings of the selected address area candidate are recognized as a receiver address which is used to sort the mail.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: September 18, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Masashi Koga, Tatsuhiko Kagehiro, Yoh Ueda, Shigeru Watanabe, Hiromichi Fujisawa
  • Address reader, sorting machine such as a mail thing and character string recognition method
    Publication number: 20010021261
    Abstract: An address reader method and apparatus for recognizing a receiver address on a surface of mail. In the invention an image of the surface of the mail is input and segmented into at least one character string candidate. At least one address area candidate is extracted from the image based upon the segmented character string candidate. One of the address area candidates extracted from the image is selected as a receiver address of the mail by analyzing each of the address area candidates based on predetermined position information indicating a usual position of a receiver address area, character direction information indicating a character direction of a character string appropriate for the predetermined position information, and key character string information indicating a character string most likely to exist in a receiver address. Characters in character strings of the selected address area candidate are recognized as a receiver address which is used to sort the mail.
    Type: Application
    Filed: April 2, 2001
    Publication date: September 13, 2001
    Inventors: Masashi Koga, Tatsuhiko Kagehiro, Yoh Ueda, Shigeru Watanabe, Hiromichi Fujisawa