Patents by Inventor Nishit Kumar

Nishit Kumar 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: 7937595
    Abstract: A system-on-a-chip (SoC) to process digital audio-video content includes one or more input/output (I/O) interfaces to transmit the digital audio-video content to corresponding I/O devices coupled to the SoC and to receive the digital audio-video content from the corresponding I/O devices. The SoC also includes a cryptographic engine to encrypt the digital audio-video content being transmitted via the I/O interfaces to the corresponding I/O devices and to decrypt the digital audio-video content received via the I/O interfaces from the corresponding I/O devices.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: May 3, 2011
    Assignee: Zoran Corporation
    Inventors: Nishit Kumar, Brian Hale Park, Zeljko Markovic
  • Publication number: 20110058669
    Abstract: The invention provides techniques to implement unique identifier for an integrated chip and how this ID can be employed to enhance the security of content in personal video recorder type systems. The storage device can be a hard disk, a removable storage medium or any other type of storage medium. An integrated circuit (IC) within the personal video recorder stores a unique identifier that is used in for encryption and decryption of data stored on the storage device. Several embodiments are disclosed herein that maintain the secrecy of the unique ID such that it is not easily accessible thereby defeating the security scheme.
    Type: Application
    Filed: November 12, 2010
    Publication date: March 10, 2011
    Applicant: Zoran Corporation
    Inventors: Nishit Kumar, David Auld
  • Patent number: 7835520
    Abstract: The invention provides techniques to implement unique identifier for an integrated chip and how this ID can be employed to enhance the security of content in personal video recorder type systems. The storage device can be a hard disk, a removable storage medium or any other type of storage medium. An integrated circuit (IC) within the personal video recorder stores a unique identifier that is used in for encryption and decryption of data stored on the storage device. Several embodiments are disclosed herein that maintain the secrecy of the unique ID such that it is not easily accessible thereby defeating the security scheme.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: November 16, 2010
    Assignee: Zoran Corporation
    Inventors: Nishit Kumar, David Auld
  • Patent number: 7372873
    Abstract: A method and a system for reconstructing a partial transport stream are described. One embodiment of the method includes time-stamping each packet when the packet arrives, storing of the selected subset of packets and the associated timestamps in a storage medium, reading the stored packets and their timestamps from the storage medium, and reconstructing the partial transport stream with the packets and their timestamps.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: May 13, 2008
    Assignee: Zoran Corporation
    Inventors: Nishit Kumar, Timothy J. Vogt, David R. Auld
  • Patent number: 7334132
    Abstract: A transport processor that can be used in a digital audio-video receiver system comprises a front end and a memory interface. The front end receives concurrently a plurality of transport streams, where two or more of the plurality of transport streams can have different formats, and each transport stream includes a plurality of packets. The front end includes a packet processor to create an aggregate transport stream in a single format from the plurality of transport streams. The memory interface is an interface through which the transport processor can store the aggregate transport stream in a memory for use by subsequent decode and display operations.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: February 19, 2008
    Assignee: Zoran Corporation
    Inventors: Nishit Kumar, Timothy Vogt
  • Publication number: 20040165725
    Abstract: The invention provides techniques to implement unique identifier for an integrated chip and how this ID can be employed to enhance the security of content in personal video recorder type systems. The storage device can be a hard disk, a removable storage medium or any other type of storage medium. An integrated circuit (IC) within the personal video recorder stores a unique identifier that is used in for encryption and decryption of data stored on the storage device. Several embodiments are disclosed herein that maintain the secrecy of the unique ID such that it is not easily accessible thereby defeating the security scheme.
    Type: Application
    Filed: February 20, 2003
    Publication date: August 26, 2004
    Inventors: Nishit Kumar, David Auld
  • Patent number: 5999188
    Abstract: The present invention addresses the problem of describing an arbitrary object (up to user-defined limits) given a set of triangles with vertex normals describing the object. A novel method of successively merging traingles into larger and larger patches to compute a set of "as-few-as-possible" Bezier patches is presented. This method is not only applicable to arbitrary objects, but also aims at producing as few patches as possible depending on the geometry of the input object. Also presented are methods to enforce C.sup.0 - and C.sup.1 -continuity between a pair of patches B.sub.L (s,t) and B.sub.R (s,t), placed arbitrarily. The methods perturb the appropnate control points to achieve geometric continuities. For C.sup.0 -continuity the area of the hole between the patches is minimized by formulating the area as a series of linear programs, where the continuity has to be enforced across the adjacent boundary curves B.sub.L (1,t) and B.sub.R (0,t). Similarly, to enforce C.sup.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: December 7, 1999
    Assignee: LSI Logic Corporation
    Inventors: Nishit Kumar, Vineet Goel, Leonardo Vainsencher