Patents by Inventor Eugene Henry Ratzlaff

Eugene Henry Ratzlaff 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).

  • Patent number: 7627596
    Abstract: The techniques in the present invention allow both text and handwritten queries, and the queries can be single-word or multiword. Generally, each handwritten word in a handwritten document is converted to a document stack of words, where each document stack contains a list of text words and a word score of some type for each text word in the list. The query is also converted to one or more stacks of words. A measure is determined from each query and document stack. Documents that meet search criteria in the query are then selected based on the query and the values of the measures. The present invention also performs multiple recognitions, with multiple recognizers, on a handwritten document to create multiple recognized transcriptions of the document. The multiple transcriptions are used for document retrieval. In another embodiment, a single transcription is created from the multiple transcriptions, and the single transcription is used for document retrieval.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: December 1, 2009
    Assignee: International Business Machines Corporation
    Inventors: Thomas Yu-Kiu Kwok, James Randal Moulic, Kenneth Blair Ocheltree, Michael Peter Perrone, John Ferdinand Pitrelli, Eugene Henry Ratzlaff, Gregory Fraser Russell, Jayashree Subrahmonia
  • Patent number: 7502017
    Abstract: A handwriting recognition device including a handwriting recognizing component such as a software application running on a microprocessor. A user interface includes a display having a stroke entry field for digitizing and displaying the strokes comprising one or more written characters, and also incorporates a character spacing indicator to indicate a new character entry field with an adjacent new word indicator to indicate a new word entry field. A recognized character display area is on the display substantially adjacent to the stroke entry and display field. The handwriting recognition component includes an output recognition buffer (ORB) for holding and correcting characters while the characters are being displayed in the recognized character display area.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: March 10, 2009
    Assignee: International Business Machines Corporation
    Inventors: Eugene Henry Ratzlaff, Yin-Min Chee
  • Publication number: 20020165873
    Abstract: The techniques in the present invention allow both text and handwritten queries, and the queries can be single-word or multiword. Generally, each handwritten word in a handwritten document is converted to a document stack of words, where each document stack contains a list of text words and a word score of some type for each text word in the list. The query is also converted to one or more stacks of words. A measure is determined from each query and document stack. Documents that meet search criteria in the query are then selected based on the query and the values of the measures. The present invention also performs multiple recognitions, with multiple recognizers, on a handwritten document to create multiple recognized transcriptions of the document. The multiple transcriptions are used for document retrieval. In another embodiment, a single transcription is created from the multiple transcriptions, and the single transcription is used for document retrieval.
    Type: Application
    Filed: February 19, 2002
    Publication date: November 7, 2002
    Applicant: International Business Machines Corporation
    Inventors: Thomas Yu-Kiu Kwok, James Randal Moulic, Kenneth Blair Ocheltree, Michael Peter Perrone, John Ferdinand Pitrelli, Eugene Henry Ratzlaff, Gregory Fraser Russell, Jayashree Subrahmonia
  • Patent number: 5788801
    Abstract: A contactless method and apparatus for real-time in-situ monitoring of a chemical etching process during etching of at least one wafer in a wet chemical etchant bath are disclosed. The method comprises the steps of providing two conductive electrodes in the wet chemical bath, wherein the two electrodes are proximate to but not in contact with a wafer; monitoring an electrical characteristic between the two electrodes as a function of time in the etchant bath of the at least one wafer, wherein a prescribed change in the electrical characteristic is indicative of a prescribed condition of the etching process; and recording a plurality of values of the electrical characteristic as a function of time during etching. From the plurality of recorded values and corresponding times, instantaneous etch rates, average etch rates, and etching end points may be determined. Such a method and the apparatus therefor are particularly useful in a wet chemical etch station.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: August 4, 1998
    Assignee: International Business Machines Corporation
    Inventors: Steven George Barbee, Tony Frederick Heinz, Yiping Hsiao, Leping Li, Eugene Henry Ratzlaff, Justin Wai-chow Wong