Patents by Inventor Dinei Afonso Ferreira Florencio

Dinei Afonso Ferreira Florencio 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).

  • Publication number: 20200160086
    Abstract: The disclosed technology is generally directed to optical text recognition for forms. In one example of the technology, line grouping rules are generated based on the generic forms and a ground truth for the generic forms. Line groupings are applied to the generic forms based on the line grouping rules. Feature extraction rules are generated. Features are extracted from the generic forms based on the feature extraction rules. A key-value classifier model is generated, such that the key-value classifier model is configured to determine, for each line of a form: a probability that the line is a value, and a probability that the line is a key. A key-value pairing model is generated, such that the key-value pairing model is configured to predict, for each key in a form, which value in the form corresponds to the key.
    Type: Application
    Filed: May 15, 2019
    Publication date: May 21, 2020
    Inventors: Dinei Afonso Ferreira FLORENCIO, Cha ZHANG, Gil Moshe NAHMIAS, Yu-Yun DAI, Sean Louis GOLDBERG
  • Publication number: 20200151443
    Abstract: The disclosed technology is generally directed to optical character recognition for forms. In one example of the technology, optical character recognition is performed on a plurality of forms. The forms of the plurality of forms include at least one type of form. Anchors are determined for the forms, including corresponding anchors for each type of form of the plurality of forms. Feature rules are determined, including corresponding feature rules for each type of form of the plurality of forms. Features and labels are determined for each form of the plurality of forms. A training model is generated based on a ground truth that includes a plurality of key-value pairs corresponding to the plurality of forms, and further based on the determined features and labels for the plurality of forms.
    Type: Application
    Filed: November 9, 2018
    Publication date: May 14, 2020
    Inventors: Dinei Afonso Ferreira FLORENCIO, Cha ZHANG, Gil Moshe NAHMIAS, Yu-Yun DAI
  • Patent number: 10397287
    Abstract: A method includes obtaining data representing multiple characters, determining a code for each character wherein each code corresponds to a different audio frequency, and transmitting the codes at the corresponding audio frequencies.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: August 27, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Zhengyou Zhang, Dinei Afonso Ferreira Florencio, Sasa Junuzovic
  • Publication number: 20180332261
    Abstract: An apparatus that automatically monitors a display device includes a photo sensor configured to receive light from a display screen of the display device. The photo sensor provides signals representing detected light levels to a processor. The processor is coupled to the display device and is configured to cause the display device to present a test sequence including a plurality of images on the display screen. The processor is configured to capture data from the photo sensor during the presentation of the test sequence and to compare the captured data to an expected sequence corresponding to the test sequence displayed by a well-functioning display. The processor is further configured to report any mismatch between the captured data and the expected sequence as a possible malfunction of the display device.
    Type: Application
    Filed: May 9, 2017
    Publication date: November 15, 2018
    Inventors: Zhengyou Zhang, Zicheng Liu, Dinei Afonso Ferreira Florencio, Sasa Junuzovic
  • Publication number: 20180255111
    Abstract: A method includes obtaining data representing multiple characters, determining a code for each character wherein each code corresponds to a different audio frequency, and transmitting the codes at the corresponding audio frequencies.
    Type: Application
    Filed: March 1, 2017
    Publication date: September 6, 2018
    Inventors: Zhengyou Zhang, Dinei Afonso Ferreira Florencio, Sasa Junuzovic
  • Patent number: 9111263
    Abstract: A template and/or knowledge associated with a synchronous meeting are obtained by a computing device. The computing device then adaptively manages the synchronous meeting based at least in part on the template and/or knowledge.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: August 18, 2015
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Jin Li, James E. Oker, Rajesh K. Hegde, Dinei Afonso Ferreira Florencio, Michel Pahud, Sharon K. Cunnington, Philip A. Chou, Zhengyou Zhang
  • Publication number: 20140324716
    Abstract: The claimed subject matter relates to an architecture to produce disincentives to wearing counterfeit or stolen merchandise in public. In particular, the architecture utilizes a unique identifier associated with each unit of the product, and provides both a registration channel for receiving ownership registration and a verification channel to receive requests for verification. By way of illustration, the architecture can include associating a brand logotype that includes unique markings with each unit of a product, a private web service where the retailer may upload customer information at the time of sale, and a publicly available web service, where a third party may inquire about the ownership of a product containing a certain unique identifier.
    Type: Application
    Filed: April 29, 2013
    Publication date: October 30, 2014
    Inventors: Carolina Haber Florencio, Dinei Afonso Ferreira Florencio
  • Patent number: 8743187
    Abstract: Techniques and technologies are described herein for motion parallax three-dimensional (3D) imaging. Such techniques and technologies do not require special glasses, virtual reality helmets, or other user-attachable devices. More particularly, some of the described motion parallax 3D imaging techniques and technologies generate sequential images, including motion parallax depictions of various scenes derived from clues in views obtained of or created for the displayed scene.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: June 3, 2014
    Assignee: Microsoft Corporation
    Inventors: Dinei Afonso Ferreira Florencio, Cha Zhang
  • Publication number: 20120242810
    Abstract: Techniques and technologies are described herein for motion parallax three-dimensional (3D) imaging. Such techniques and technologies do not require special glasses, virtual reality helmets, or other user-attachable devices. More particularly, some of the described motion parallax 3D imaging techniques and technologies generate sequential images, including motion parallax depictions of various scenes derived from clues in views obtained of or created for the displayed scene.
    Type: Application
    Filed: June 6, 2012
    Publication date: September 27, 2012
    Applicant: MICROSOFT CORPORATION
    Inventors: Dinei Afonso Ferreira Florencio, Cha Zhang
  • Patent number: 8199186
    Abstract: Techniques and technologies are described herein for motion parallax three-dimensional (3D) imaging. Such techniques and technologies do not require special glasses, virtual reality helmets, or other user-attachable devices. More particularly, some of the described motion parallax 3D imaging techniques and technologies generate sequential images, including motion parallax depictions of various scenes derived from clues in views obtained of or created for the displayed scene.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: June 12, 2012
    Assignee: Microsoft Corporation
    Inventors: Dinei Afonso Ferreira Florencio, Cha Zhang
  • Publication number: 20110317522
    Abstract: Described is modeling a room to obtain estimates for walls and a ceiling, and using the model to improve sound source localization by incorporating reflection (reverberation) data into the location estimation computations. In a calibration step, reflections of a known sound are detected at a microphone array, with their corresponding signals processed to estimate wall (and ceiling) locations. In a sound source localization step, when an actual sound (including reverberations) is detected, the signals are processed into hypotheses that include reflection data predictions based upon possible locations, given the room model. The location corresponding to the hypothesis that matches (maximum likelihood) the actual sound data is the estimated location of the sound source.
    Type: Application
    Filed: June 28, 2010
    Publication date: December 29, 2011
    Applicant: MICROSOFT CORPORATION
    Inventors: Dinei Afonso Ferreira Florencio, Cha Zhang, Flavio Protasio Ribeiro, Demba Elimane Ba
  • Publication number: 20100318399
    Abstract: A template and/or knowledge associated with a synchronous meeting are obtained by a computing device. The computing device then adaptively manages the synchronous meeting based at least in part on the template and/or knowledge.
    Type: Application
    Filed: June 15, 2009
    Publication date: December 16, 2010
    Applicant: MICROSOFT CORPORATION
    Inventors: Jin Li, James E. Oker, Rajesh K. Hegde, Dinei Afonso Ferreira Florencio, Michel Pahud, Sharon K. Cunnington, Philip A. Chou, Zhengyou Zhang
  • Publication number: 20100225743
    Abstract: Techniques and technologies are described herein for motion parallax three-dimensional (3D) imaging. Such techniques and technologies do not require special glasses, virtual reality helmets, or other user-attachable devices. More particularly, some of the described motion parallax 3D imaging techniques and technologies generate sequential images, including motion parallax depictions of various scenes derived from clues in views obtained of or created for the displayed scene.
    Type: Application
    Filed: March 5, 2009
    Publication date: September 9, 2010
    Applicant: Microsoft Corporation
    Inventors: Dinei Afonso Ferreira Florencio, Cha Zhang
  • Patent number: 7203371
    Abstract: Systems and methods for performing adaptive filtering are disclosed. The present invention generates probabilities that can be used in an encoder, such as an arithmetic encoder and generates those probabilities in a computationally efficient manner. Probabilities of previously encoded coefficients are employed, effectively, in generating probabilities of the coefficients without regard to directional information. Thus, a large amount of information is adaptively and efficiently used in generating the probabilities. For the coefficients, the probability is computed based at least partly on at least one probability of a previously computed probability of a neighboring coefficient. Then, the coefficients are encoded using those computed probabilities.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: April 10, 2007
    Assignee: Microsoft Corporation
    Inventors: Patrice Y. Simard, Henrique S. Malvar, Dinei Afonso Ferreira Florencio, David Willard Steinkraus
  • Patent number: 7197146
    Abstract: A system and method facilitating signal enhancement utilizing an adaptive filter is provided. The invention includes an adaptive filter that filters an input based upon a plurality of adaptive coefficients and modifies the adaptive coefficients based on a feedback output. A feedback component provides the feedback output based, at least in part, upon a non-linear function of the acoustic reverberation reduced output. Optionally, the system can further include a linear prediction (LP) analyzer and/or a LP synthesis filter. The system can enhance signal(s), for example, to improve the quality of speech that is acquired by a microphone by reducing reverberation. The system utilizes, at least in part, the principle that certain characteristics of reverberated speech are measurably different from corresponding characteristics of clean speech. The system can employ a filter technology (e.g., reverberation reducing) based on a non-linear function, for example, the kurtosis metric.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: March 27, 2007
    Assignee: Microsoft Corporation
    Inventors: Henrique S. Malvar, Dinei Afonso Ferreira Florencio, Bradford W. Gillespie
  • Patent number: 7167568
    Abstract: A system and method facilitating signal enhancement utilizing an adaptive filter is provided. The invention includes an adaptive filter that filters an input based upon a plurality of adaptive coefficients and modifies the adaptive coefficients based on a feedback output. A feedback component provides the feedback output based, at least in part, upon a non-linear function of the acoustic reverberation reduced output. Optionally, the system can further include a linear prediction (LP) analyzer and/or a LP synthesis filter. The system can enhance signal(s), for example, to improve the quality of speech that is acquired by a microphone by reducing reverberation. The system utilizes, at least in part, the principle that certain characteristics of reverberated speech are measurably different from corresponding characteristics of clean speech. The system can employ a filter technology (e.g. reverberation reducing) based on a non-linear function, for example, the kurtosis metric.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: January 23, 2007
    Assignee: Microsoft Corporation
    Inventors: Henrique S. Malvar, Dinei Afonso Ferreira Florencio, Bradford W. Gillespie
  • Patent number: 6999628
    Abstract: Systems and methods for performing adaptive filtering are disclosed. The present invention generates probabilities that can be used in an encoder, such as an arithmetic encoder and generates those probabilities in a computationally efficient manner. Probabilities of previously encoded coefficients are employed, effectively, in generating probabilities of the coefficients without regard to directional information. Thus, a large amount of information is adaptively and efficiently used in generating the probabilities. For the coefficients, the probability is computed based at least partly on at least one probability of a previously computed probability of a neighboring coefficient. Then, the coefficients are encoded using those computed probabilities.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: February 14, 2006
    Assignee: Microsoft Corporation
    Inventors: Patrice Y. Simard, Henrique S. Malvar, Dinei Afonso Ferreira Florencio, David Willard Steinkraus
  • Patent number: 6792149
    Abstract: A method and apparatus for reducing information artifacts imparted to a decoded video information stream by an MPEG-like decoder utilizing discrete transform (DCT) domain compression to produce a size-reduced reference image information frame. Specifically, the invention responsively selects one of a plurality of pre-defined DCT coefficient matrices in response to the amount of compression to be imparted to the reference image information frame, and the presence or absence of field-mode encoding the reference image information frame.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: September 14, 2004
    Assignee: Sarnoff Corporation
    Inventor: Dinei Afonso Ferreira Florencio
  • Patent number: 6704358
    Abstract: A method and apparatus for adapting scaled pixel blocks such that the resolution, or grid size, of associated motion vector information is substantially the same. Also disclosed are various techniques for producing and processing the scaled pixel blocks such that memory resources and/or processing resources are efficiently utilized.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: March 9, 2004
    Assignees: Sarnoff Corporation, Motorola, Inc.
    Inventors: Shipeng Li, Keren Hu, Dinei Afonso Ferreira Florencio
  • Publication number: 20030206640
    Abstract: A system and method facilitating signal enhancement utilizing an adaptive filter is provided. The invention includes an adaptive filter that filters an input based upon a plurality of adaptive coefficients, the adaptive filter modifying at least one of the adaptive coefficients based on a feedback output. The invention further includes a feedback component that provides the feedback output based, at least in part, upon a non-linear function of the acoustic reverberation reduced output.
    Type: Application
    Filed: May 2, 2002
    Publication date: November 6, 2003
    Inventors: Henrique S. Malvar, Dinei Afonso Ferreira Florencio, Bradford W. Gillespie