Patents by Inventor Chak Joo Lee

Chak Joo Lee 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: 20070098066
    Abstract: Mosaic-shaped block noise occurs when a compressed video signal is reproduced. This block noise is removed, but removing block noise from every block using a deblocking filter imposes a significant load on the deblocking filter. This load is therefore reduced by determining whether coding distortion removal (deblocking) is necessary, and applying a deblocking filter only when needed.
    Type: Application
    Filed: December 21, 2006
    Publication date: May 3, 2007
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Zhong XUE, Sheng Mei SHEN, Teck Wee FOO, Chak Joo LEE, Shinya KADONO
  • Publication number: 20070092002
    Abstract: Mosaic-shaped block noise occurs when a compressed video signal is reproduced. This block noise is removed, but removing block noise from every block using a deblocking filter imposes a significant load on the deblocking filter. This load is therefore reduced by determining whether coding distortion removal (deblocking) is necessary, and applying a deblocking filter only when needed.
    Type: Application
    Filed: December 21, 2006
    Publication date: April 26, 2007
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Zhong XUE, Sheng Mei SHEN, Teck Wee FOO, Chak Joo LEE, Shinya KADONO
  • Patent number: 7095787
    Abstract: Mosaic-shaped block noise occurs when a compressed video signal is reproduced. This block noise is removed, but removing block noise from every block using a deblocking filter imposes a significant load on the deblocking filter. This load is therefore reduced by determining whether coding distortion removal (deblocking) is necessary, and applying a deblocking filter only when needed.
    Type: Grant
    Filed: November 29, 2002
    Date of Patent: August 22, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shinya Kadono, Sheng Mei Shen, Teck Wee Foo, Chak Joo Lee, Zhong Xue
  • Publication number: 20040076237
    Abstract: Mosaic-shaped block noise occurs when a compressed video signal is reproduced. This block noise is removed, but removing block noise from every block using a deblocking filter imposes a significant load on the deblocking filter. This load is therefore reduced by determining whether coding distortion removal (deblocking) is necessary, and applying a deblocking filter only when needed.
    Type: Application
    Filed: July 8, 2003
    Publication date: April 22, 2004
    Inventors: Shinya Kadono, Sheng Mei Shen, Teck Wee Foo, Chak Joo Lee, Zhong Xue
  • Publication number: 20040062310
    Abstract: Mosaic-shaped block noise occurs when a compressed video signal is reproduced. This block noise is removed, but removing block noise from every block using a deblocking filter imposes a significant load on the deblocking filter. This load is therefore reduced by determining whether coding distortion removal (deblocking) is necessary, and applying a deblocking filter only when needed.
    Type: Application
    Filed: July 24, 2003
    Publication date: April 1, 2004
    Inventors: Zhong Xue, Sheng Mei Shen, Teck Wee Foo, Chak Joo Lee, Shinya Kadono
  • Patent number: 6075576
    Abstract: A method of encoding a local time base embedded in the compressed data is disclosed. The local time base is encoded in two parts. The first part has a modulo time base that indicates the specific interval in the reference time base and the second part has a time base increment relative to the reference time. Two forms of time base increment is used to allow for the possibility of different encoding order and displaying order. A mechanism for the synchronization of multiple compressed streams with local time base is also described. A time base offset mechanism is also used to allow finer granularity synchronization of the multiple compressed streams.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: June 13, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Thiow Keng Tan, Sheng Mei Shen, Chak Joo Lee
  • Patent number: RE38875
    Abstract: A method of encoding a local time base embedded in the compressed data is disclosed. The local time base is encoded in two parts. The first part has a modulo time base that indicates the specific interval in the reference time base and the second part has a time base increment relative to the reference time. Two forms of time base increment is used to allow for the possibility of different encoding order and displaying order. A mechanism for the synchronization of multiple compressed streams with local time base is also described. A time base offset mechanism is also used to allow finer granularity synchronization of the multiple compressed streams.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: November 15, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Thiow Keng Tan, Sheng Mei Shen, Chak Joo Lee
  • Patent number: RE38923
    Abstract: A method of encoding a local time base embedded in the compressed data is disclosed. The local time base is encoded in two parts. The first part has a modulo time base that indicates the specific interval in the reference time base and the second part has a time base increment relative to the reference time. Two forms of time base increment is used to allow for the possibility of different encoding order and displaying order. A mechanism for the synchronization of multiple compressed streams with local time base is also described. A time base offset mechanism is also used to allow finer granularity synchronization of the multiple compressed streams.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: December 20, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Thiow Keng Tan, Sheng Mei Shen, Chak Joo Lee
  • Patent number: RE39115
    Abstract: A method of encoding a local time base embedded in the compressed data is disclosed. The local time base is encoded in two parts. The first part has a modulo time base that indicates the specific interval in the reference time base and the second part has a time base increment relative to the reference time. Two forms of time base increment is used to allow for the possibility of different encoding order and displaying order. A mechanism for the synchronization of multiple compressed streams with local time base is also described. A time base offset mechanism is also used to allow finer granularity synchronization of the multiple compressed streams.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: June 6, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Thiow Keng Tan, Sheng Mei Shen, Chak Joo Lee
  • Patent number: RE39344
    Abstract: A method of encoding a local time base embedded in the compressed data is disclosed. The local time base is encoded in two parts. The first part has a modulo time base that indicates the specific interval in the reference time base and the second part has a time base increment relative to the reference time. Two forms of time base increment is used to allow for the possibility of different encoding order and displaying order. A mechanism for the synchronization of multiple compressed streams with local time base is also described. A time base offset mechanism is also used to allow finer granularity synchronization of the multiple compressed streams.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: October 17, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Thiow Keng Tan, Sheng Mei Shen, Chak Joo Lee