Patents by Inventor Jannes G. A. Dolfing

Jannes G. A. Dolfing 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: 9495620
    Abstract: Methods, systems, and computer-readable media related to a technique for providing handwriting input functionality on a user device. A handwriting recognition module is trained to have a repertoire comprising multiple non-overlapping scripts and capable of recognizing tens of thousands of characters using a single handwriting recognition model. The handwriting input module provides real-time, stroke-order and stroke-direction independent handwriting recognition. User interfaces for providing the handwriting input functionality are also disclosed.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: November 15, 2016
    Assignee: APPLE INC.
    Inventors: Jannes G. A. Dolfing, Karl M. Groethe, Ryan S. Dixon, Jerome R. Bellegarda
  • Patent number: 9465985
    Abstract: Methods, systems, and computer-readable media related to a technique for providing handwriting input functionality on a user device. A handwriting recognition module is trained to have a repertoire comprising multiple non-overlapping scripts and capable of recognizing tens of thousands of characters using a single handwriting recognition model. The handwriting input module provides real-time, stroke-order and stroke-direction independent handwriting recognition for multi-character handwriting input. In particular, real-time, stroke-order and stroke-direction independent handwriting recognition is provided for multi-character, or sentence level Chinese handwriting recognition. User interfaces for providing the handwriting input functionality are also disclosed.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: October 11, 2016
    Assignee: Apple Inc.
    Inventors: Mei-Qun Xia, Jannes G. Dolfing, Ryan S. Dixon, Karl M. Groethe, Karan Misra, Jerome R. Bellegarda, Ueli Meier
  • Patent number: 8989492
    Abstract: A first technique of recognizing content is disclosed, including: determining a first value representative of a pixel content present at a first set of pixels associated with a first distance from a pixel under consideration; determining a second value representative of a pixel content present at a second set of pixels associated with a second distance from the pixel under consideration; and using the first and second values to compute one or more spatial features associated with the pixel under consideration for purposes of content recognition. A second technique of recognizing content is also disclosed, including: determining, for a pixel, a first value representative of a first feature associated with a set of pixels associated with a first direction from the pixel; and determining, for the pixel, a second value representative of a second feature associated with a set of pixels associated with a second direction from the pixel.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: March 24, 2015
    Assignee: Apple Inc.
    Inventors: Jerome R. Bellegarda, Jannes G. A. Dolfing
  • Patent number: 8977059
    Abstract: Integrating features is disclosed, including: determining a value associated with a temporal feature for a point; determining a value associated with a spatial feature associated with the temporal feature; including the value associated with a spatial feature and the value associated with the temporal feature into a feature vector; and using the feature vector to decode for a character. Determining a transform is also disclosed, including: determining, for a point associated with a sequence of points, a set of points including: the point, a first subset of points of the sequence preceding a sequence position associated with the point, and a second subset of points following the sequence position associated with the point; and determining the transform associated with the point based at least in part on the set of points.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: March 10, 2015
    Assignee: Apple Inc.
    Inventors: Jerome R. Bellegarda, Jannes G. A. Dolfing, Devang K. Naik
  • Publication number: 20140365949
    Abstract: Methods, systems, and computer-readable media related to a technique for providing handwriting input functionality on a user device. A handwriting recognition module is trained to have a repertoire comprising multiple non-overlapping scripts and capable of recognizing tens of thousands of characters using a single handwriting recognition model. The handwriting input module provides real-time, stroke-order and stroke-direction independent handwriting recognition for multi-character handwriting input. In particular, real-time, stroke-order and stroke-direction independent handwriting recognition is provided for multi-character, or sentence level Chinese handwriting recognition. User interfaces for providing the handwriting input functionality are also disclosed.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 11, 2014
    Applicant: APPLE INC.
    Inventors: Mei-Qun XIA, Jannes G. DOLFING, Ryan S. DIXON, Karl M. GROETHE, Karan MISRA, Jerome R. BELLEGARDA, Ueli MEIER
  • Publication number: 20140363074
    Abstract: Methods, systems, and computer-readable media related to a technique for providing handwriting input functionality on a user device. A handwriting recognition module is trained to have a repertoire comprising multiple non-overlapping scripts and capable of recognizing tens of thousands of characters using a single handwriting recognition model. The handwriting input module provides real-time, stroke-order and stroke-direction independent handwriting recognition. User interfaces for providing the handwriting input functionality are also disclosed.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 11, 2014
    Applicant: Apple Inc.
    Inventors: Jannes G. A. DOLFING, Karl M. GROETHE, Ryan S. DIXON, Jerome R. BELLEGARDA
  • Publication number: 20140363083
    Abstract: Methods, systems, and computer-readable media related to a technique for providing handwriting input functionality on a user device. A handwriting recognition module is trained to have a repertoire comprising multiple non-overlapping scripts and capable of recognizing tens of thousands of characters using a single handwriting recognition model. The handwriting input module provides real-time, stroke-order and stroke-direction independent handwriting recognition for multi-character handwriting input. In particular, real-time, stroke-order and stroke-direction independent handwriting recognition is provided for multi-character, or sentence level Chinese handwriting recognition. User interfaces for providing the handwriting input functionality are also disclosed.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 11, 2014
    Applicant: Apple Inc.
    Inventors: Mei-Qun XIA, Jannes G. DOLFING, Ryan S. DIXON, Karl M. GROETHE, Karan MISRA, Jerome R. BELLEGARDA, Ueli MEIER
  • Publication number: 20140361983
    Abstract: Methods, systems, and computer-readable media related to a technique for providing handwriting input functionality on a user device. A handwriting recognition module is trained to have a repertoire comprising multiple non-overlapping scripts and capable of recognizing tens of thousands of characters using a single handwriting recognition model. The handwriting input module provides real-time, stroke-order and stroke-direction independent handwriting recognition for multi-character handwriting input. In particular, real-time, stroke-order and stroke-direction independent handwriting recognition is provided for multi-character, or sentence level Chinese handwriting recognition. User interfaces for providing the handwriting input functionality are also disclosed.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 11, 2014
    Applicant: Apple Inc.
    Inventors: Jannes G. DOLFING, Jerome R. BELLEGARDA, Ueli MEIER, Ryan DIXON
  • Publication number: 20140363082
    Abstract: Methods, systems, and computer-readable media related to a technique for providing handwriting input functionality on a user device. A handwriting recognition module is trained to have a repertoire comprising multiple non-overlapping scripts and capable of recognizing tens of thousands of characters using a single handwriting recognition model. The handwriting input module provides real-time, stroke-order and stroke-direction independent handwriting recognition. In some embodiments, temporally-derived features are used to improve recognition accuracy without compromising the stroke-order and stroke-direction independence of the recognition system.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 11, 2014
    Applicant: APPLE INC.
    Inventors: Ryan S. DIXON, Jannes G. DOLFING, Ueli MEIER, Jerome R. BELLEGARDA
  • Patent number: 8706472
    Abstract: Disambiguating multiple readings in language conversion is disclosed, including: receiving an input data to be converted into a set of characters comprising a symbolic representation of the input data in a target symbolic system; and using a language model that distinguishes between a first reading and a second reading of a character of the target symbolic system to determine a probability that the heteronymous character should be used to represent a corresponding portion of the input data.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: April 22, 2014
    Assignee: Apple Inc.
    Inventors: Brent D. Ramerth, Devang K. Naik, Douglas R. Davidson, Jannes G. A. Dolfing, Jia Pu
  • Publication number: 20130041647
    Abstract: Disambiguating multiple readings in language conversion is disclosed, including: receiving an input data to be converted into a set of characters comprising a symbolic representation of the input data in a target symbolic system; and using a language model that distinguishes between a first reading and a second reading of a character of the target symbolic system to determine a probability that the heteronymous character should be used to represent a corresponding portion of the input data.
    Type: Application
    Filed: August 11, 2011
    Publication date: February 14, 2013
    Applicant: APPLE INC.
    Inventors: Brent D. Ramerth, Devang K. Naik, Douglas R. Davidson, Jannes G. A. Dolfing, Jia Pu
  • Publication number: 20120308138
    Abstract: A first technique of recognizing content is disclosed, including: determining a first value representative of a pixel content present at a first set of pixels associated with a first distance from a pixel under consideration; determining a second value representative of a pixel content present at a second set of pixels associated with a second distance from the pixel under consideration; and using the first and second values to compute one or more spatial features associated with the pixel under consideration for purposes of content recognition. A second technique of recognizing content is also disclosed, including: determining, for a pixel, a first value representative of a first feature associated with a set of pixels associated with a first direction from the pixel; and determining, for the pixel, a second value representative of a second feature associated with a set of pixels associated with a second direction from the pixel.
    Type: Application
    Filed: June 4, 2012
    Publication date: December 6, 2012
    Applicant: Apple Inc
    Inventors: Jerome R. Bellegarda, Jannes G.A. Dolfing
  • Publication number: 20120308143
    Abstract: Integrating features is disclosed, including: determining a value associated with a temporal feature for a point; determining a value associated with a spatial feature associated with the temporal feature; including the value associated with a spatial feature and the value associated with the temporal feature into a feature vector; and using the feature vector to decode for a character. Determining a transform is also disclosed, including: determining, for a point associated with a sequence of points, a set of points including: the point, a first subset of points of the sequence preceding a sequence position associated with the point, and a second subset of points following the sequence position associated with the point; and determining the transform associated with the point based at least in part on the set of points.
    Type: Application
    Filed: June 4, 2012
    Publication date: December 6, 2012
    Applicant: Apple Inc.
    Inventors: Jerome R. Bellegarda, Jannes G.A. Dolfing, Devang K. Naik
  • Patent number: 6421640
    Abstract: The invention relates to a method of automatically recognizing speech utterances, in which a recognition result is evaluated by means of a first confidence measure and a plurality of second confidence measures determined for a recognition result is automatically combined for determining the first confidence measure. To reduce the resultant error rate in the assessment of the correctness of a recognition result, the method is characterized in that the determination of the parameters weighting the combination of the second confidence measures is based on a minimization of a cross-entropy-error measure. A further improvement is achieved by means of a post-processing operation based on the maximization of the Gardner-Derrida error function.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: July 16, 2002
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Jannes G. A. Dolfing, Andreas Wendemuth
  • Patent number: 6349148
    Abstract: The invention relates to a device for the verification of time-dependent, user-specific signals which includes means for generating a set of feature vectors which serve to provide an approximative description of an input signal and are associated with selectable sampling intervals of the signal; means for preparing an HMM model for the signal; means for determining a first probability value which describes the probability of occurrence of the set of feature vectors, given the HMM model, and a threshold decider for comparing the first probability value with a threshold value and for deciding on the verification of the signal.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: February 19, 2002
    Assignee: U.S. Philips Corporation
    Inventor: Jannes G.A. Dolfing
  • Patent number: 6317507
    Abstract: The invention relates to a device for the verification of time-dependent, user-specific signals which includes means for generating a set of feature vectors which serve to provide an approximative description of an input signal and are associated with selectable sampling intervals of the signal; means for preparing an HMM model for the signal; means for determining a probability value which describes the probability of occurrence of the set of feature vectors, given the HMM model, and a threshold decider for comparing the probability value with a threshold value and for deciding on the verification of the signal. For better adaptation of the verification to the relevant user and the user-specific signals assigned thereto, it is proposed to provide means for the automatic person-specific evaluation of the relevance of the features collected in the feature vectors by way of an LDA transformation and for the automatic selection of features evaluated as relevant.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: November 13, 2001
    Assignee: U.S. Philips Corporation
    Inventor: Jannes G. A. Dolfing
  • Patent number: 6084985
    Abstract: A method for on-line handwriting recognition is based on a hidden Markov model and implies the following steps: sensing real-time at least an instantaneous write position of the handwriting, deriving from the handwriting a time-conforming string of segments each associated to a handwriting feature vector, matching the time-conforming string to various example strings from a data base pertaining to the handwriting, and selecting from the example strings a best-matching recognition string through hidden-Markov processing, or rejecting the handwriting as unrecognized. In particular, the feature vectors are based on local observations derived from a single segment, as well as on compacted observations derived from time-sequential segments.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: July 4, 2000
    Assignee: U.S. Philips Corporation
    Inventors: Jannes G. A. Dolfing, Reinhold Hab-Umbach