Patents by Inventor Pascal Frossard

Pascal Frossard 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: 20040202320
    Abstract: Techniques for securely and adaptively delivering multimedia content. It is assumed that a set of alternate access units for each time slot is obtained. Then, the encryption stream index of each access unit from the set of alternate access units of the previous time slot are obtained. An encryption stream index is then assigned to each access unit in the set of alternate access units in the current time slot, such that the encryption index increases over time. Thus, the invention overcomes the problem of encrypting a multimedia stream that may have multiple access units for each time slot by selecting the encryption index for each access unit such that the encryption index increases, regardless of which access unit the delivery system (e.g., server) selects for transmission.
    Type: Application
    Filed: April 9, 2003
    Publication date: October 14, 2004
    Applicant: International Business Machines Corporation
    Inventors: Lisa D. Amini, Pascal Frossard, Chitra Venkatramani, Olivier Verscheure, Peter Westerink
  • Publication number: 20040199653
    Abstract: A system and method for streaming data over a communications network with varying streaming conditions, include a conditioning unit for conditioning the data by creating a plurality of representations, a packaging unit responsive to the conditioning unit for packaging the plurality of conditioned data representations, a media server responsive to the packaging means for observing at least one current streaming condition and selecting a most appropriate packaged conditioned data representation in accordance with the observed at least one current streaming condition, and a communications network responsive to the media server for streaming the selected packaged conditioned data representation.
    Type: Application
    Filed: April 3, 2003
    Publication date: October 7, 2004
    Applicant: International Business Machines Corporation
    Inventors: Lisa Amini, Pascal Frossard, Olivier Verscheure, Peter Westerink
  • Patent number: 6628300
    Abstract: An apparatus, a method and a system to efficiently manipulate in the compressed domain, spatial and/or temporal scaling of matching pursuit-coded digital signals. These manipulations, referred to as transcoding, may take place at a transcoding proxy located at an origin server, in any intermediary along the transmission path from the origin server to the client device, and/or at the client device. The preferred embodiment focuses on a method to perform rate adaptation and spatio-temporal scaling of a video stream composed of 3-D atoms in order to serve a set of heterogeneous client devices (e.g., a high-end personal computer, a personal digital assistant and a wireless phone). The proposed method applies to 1-D atoms (decomposition of audio signals) and 2-D atoms (image decomposition).
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: September 30, 2003
    Assignee: International Business Machines Corporation
    Inventors: Lisa Amini, Pascal Frossard, Pierre Vandergheynst, Olivier Verscheure
  • Publication number: 20030108101
    Abstract: An apparatus and method to represent a video signal for improved source quality versus decoding complexity for a given compression rate and improved resistance against data loss when delivered over an error-prone network. The method comprises a 3-D matching pursuit algorithm with an improved 3-D dictionary. The 3-D MP encoder transforms blocks of frames into a set of spatio-temporal functions from the improved dictionary. The 3-D coder outputs a video stream that is highly resistant to data loss. Also, the proposed dictionary is optimized for source quality versus decoding complexity for a given compression rate.
    Type: Application
    Filed: March 6, 2002
    Publication date: June 12, 2003
    Applicant: International Business Machines Corporation
    Inventors: Pascal Frossard, Pierre Vandergheynst, Olivier Verscheure
  • Publication number: 20030103523
    Abstract: An apparatus and method for improving the delivery of a digital multimedia stream over a lossy packet network. The method consists in creating data packets of equivalent perceptual relevance to the end-user and as of equal length as possible. Therefore a packet loss induces the same perceptual degradation independently of its location in the multimedia stream.
    Type: Application
    Filed: March 6, 2002
    Publication date: June 5, 2003
    Applicant: International Business Machines Corporation
    Inventors: Pascal Frossard, Pierre Vandergheynst, Olivier Verscheure
  • Publication number: 20030103563
    Abstract: An apparatus, a method and a system to efficiently manipulate in the compressed domain, spatial and/or temporal scaling of matching pursuit-coded digital signals. These manipulations, referred to as transcoding, may take place at a transcoding proxy located at an origin server, in any intermediary along the transmission path from the origin server to the client device, and/or at the client device. The preferred embodiment focuses on a method to perform rate adaptation and spatio-temporal scaling of a video stream composed of 3-D atoms in order to serve a set of heterogeneous client devices (e.g., a high-end personal computer, a personal digital assistant and a wireless phone). The proposed method applies to 1-D atoms (decomposition of audio signals) and 2-D atoms (image decomposition).
    Type: Application
    Filed: March 6, 2002
    Publication date: June 5, 2003
    Applicant: International Business Machines Corporation
    Inventors: Lisa Amini, Pascal Frossard, Pierre Vandergheynst, Olivier Verscheure