Patents by Inventor Joseph W. M. Pang

Joseph W. M. Pang 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: 6178480
    Abstract: A method for increasing the storage capacity of a video server which utilizes an array of disks is disclosed. The server is operated so that the continuity of a plurality of bit streams is maintained. The inventive method has advantageous characteristics with respect to storage capacity, streaming capacity, start-up latency of new streams, amount of required buffer capacity, scalability, reliability and multiple bit rates.
    Type: Grant
    Filed: June 6, 1997
    Date of Patent: January 23, 2001
    Assignee: Starlight Networks, Inc.
    Inventors: Fouad A. Tobagi, Randall B. Baird, Joseph Mark Gang, Jr., Joseph W. M. Pang
  • Patent number: 5754882
    Abstract: A method for operating a disk storage system, comprising a disk and forming part of a communications network, simultaneously maintains the continuity of a plurality of data streams. Typically, each stream transfers video data to or from the disk storage system. Illustratively, each of the data streams is produced in the network at a rate of W.sub.base bits/sec and consumed by the disk storage system or produced by said disk storage system and consumed in the network at a rate of W.sub.base bits/sec. One I/O transaction is performed for each stream in each of a plurality of I/O cycles of duration S/W.sub.base, wherein in each I/O transaction a segment of S bits is retrieved from or stored in the disk. The number of streams whose continuity can be maintained in this manner is limited by the number of I/O's which can be performed in a cycle of duration S/W.sub.base. More generally, when a stream has a bit rate (A/B)W.sub.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: May 19, 1998
    Assignee: Starlight Networks
    Inventors: Fouad A. Tobagi, Joseph M. Gang, Jr., Randall B. Baird, Joseph W. M. Pang, Martin J. McFadden
  • Patent number: 5734925
    Abstract: A method for operating a disk storage system, comprising a disk and forming part of a communications network, simultaneously maintains the continuity of a plurality of data streams. Typically, each stream transfers video data to or from the disk storage system. Illustratively, each of the data streams is produced in the network at a rate of W.sub.base bits/sec and consumed by the disk storage system or produced by said disk storage system and consumed in the network at a rate of W.sub.base bits/sec. One I/O transaction is performed for each stream in each of a plurality of I/O cycles of duration S/W.sub.base, wherein in each I/O transaction a segment of S bits is retrieved from or stored in the disk. The number of streams whose continuity can be maintained in this manner is limited by the number of I/O's which can be performed in a cycle of duration S/W.sub.base. More generally, when a stream has a bit rate (A/B)W.sub.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: March 31, 1998
    Assignee: Starlight Networks
    Inventors: Fouad A. Tobagi, Joseph M. Gang, Jr., Randall B. Baird, Joseph W. M. Pang, Martin J. McFadden
  • Patent number: 5732239
    Abstract: A method for increasing the storage capacity of a video server which utilizes an array of disks is disclosed. The server is operated so that the continuity of a plurality of bit streams is maintained. The inventive method has advantageous characteristics with respect to storage capacity, streaming capacity, start-up latency of new streams, amount of required buffer capacity, scalability, reliability and multiple bit rates.
    Type: Grant
    Filed: May 19, 1994
    Date of Patent: March 24, 1998
    Assignee: Starlight Networks
    Inventors: Fouad A. Tobagi, Randall B. Baird, Joseph Mark Gang, Jr., Joseph W. M. Pang
  • Patent number: 5721950
    Abstract: A method for operating a disk storage system, comprising a disk and forming part of a communications network, simultaneously maintains the continuity of a plurality of data streams. Typically, each stream transfers video data to or from the disk storage system. Illustratively, each of the data streams is produced in the network at a rate of W.sub.base bits/sec and consumed by the disk storage system or produced by said disk storage system and consumed in the network at a rate of W.sub.base bits/sec. One I/O transaction is performed for each stream in each of a plurality of I/O cycles of duration S/W.sub.base, wherein in each I/O transaction a segment of S bits is retrieved from or stored in the disk. The number of streams whose continuity can be maintained in this manner is limited by the number of I/O's which can be performed in a cycle of duration S/W.sub.base. More generally, when a stream has a bit rate (A/B)W.sub.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: February 24, 1998
    Assignee: Starlight Networks
    Inventors: Fouad A. Tobagi, Joseph M. Gang, Jr., Randall B. Baird, Joseph W. M. Pang, Martin J. McFadden
  • Patent number: 5581784
    Abstract: A method for operating a disk storage system, comprising a disk and forming part of a communications network, simultaneously maintains the continuity of a plurality of data streams. Typically, each stream transfers video data to or from the disk storage system. Illustratively, each of the data streams is produced in the network at a rate of W.sub.base bits/sec and consumed by the disk storage system or produced by said disk storage system and consumed in the network at a rate of W.sub.base bits/sec. One I/O transaction is performed for each stream in each of a plurality of I/O cycles of duration S/W.sub.base, wherein in each I/O transaction a segment of S bits is retrieved from or stored in the disk. The number of streams whose continuity can be maintained in this manner is limited by the number of I/O's which can be performed in a cycle of duration S/W.sub.base. More generally, when a stream has a bit rate (A/B)W.sub.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: December 3, 1996
    Assignee: Starlight Networks
    Inventors: Fouad A. Tobagi, Joseph M. Gang, Jr., Randall B. Baird, Joseph W. M. Pang, Martin J. McFadden