Merle C Sharp

US Patent:

6559890, May 6, 2003

Filed:

Apr 21, 1999

Appl. No.:

09/295936

Inventors:

David E. Holland - Granada Hills CA
Gavin W. Schutz - Glendale CA
Merle C. Sharp - Los Angeles CA

Assignee:

Ascent Media Group, Inc. - Santa Monica CA

International Classification:

H04N 701

US Classification:

348441, 348700, 348701

Abstract:

Systems and methods are provided for allowing a user to correct a discontinuous 2-3 field sequence within a disrupted video signal. A 2-3 field pattern fixer can be operated in a one-pass mode and/or a two-pass mode. In the one-pass mode, the disrupted video signal is analyzed to generate correction information, which is used to correct the disrupted video signal as it passes through the 2-3 pattern fixer, resulting in an undisrupted video signal with a continuous 2-3 field sequence. In the two-pass mode, the disrupted video signal is analyzed to generate correction information, which is then stored. This correction information is then used to correct a duplicate of the disrupted video signal, resulting in an undisrupted video signal with a continuous 2-3 field sequence. In this connection, the 2-3 field pattern fixer includes a field sequence detector, a field sequence analyzer, a field sequence generator and a multiple delay tap circuit. The field sequence detector generates field difference values in response to receiving the disrupted video signal.

US Patent:

7139029, Nov 21, 2006

Filed:

May 5, 2003

Appl. No.:

10/430608

Inventors:

David E. Holland - Granada Hills CA, US
Gavin W. Schutz - Glendale CA, US
Merle C. Sharp - Los Angeles CA, US

Assignee:

Ascent Media Group, Inc. - Santa Monica CA

International Classification:

H04N 7/01
H04N 11/20

US Classification:

348441, 348700, 348701

Abstract:

Systems and methods are provided for allowing a user to correct a discontinuous 2-3 field sequence within a disrupted video signal. A 2-3 field pattern fixer can be operated in a one-pass mode and/or a two-pass mode. In the one-pass mode, the disrupted video signal is analyzed to generate correction information, which is used to correct the disrupted video signal as it passes through the 2-3 pattern fixer, resulting in an undisrupted video signal with a continuous 2-3 field sequence. In the two-pass mode, the disrupted video signal is analyzed to generate correction information, which is then stored. This correction information is then used to correct a duplicate of the disrupted video signal, resulting in an undisrupted video signal with a continuous 2-3 field sequence. In this connection, the 2-3 field pattern fixer includes a field sequence detector, a field sequence analyzer, a field sequence generator and a multiple delay tap circuit. The field sequence detector generates field difference values in response to receiving the disrupted video signal.

US Patent:

20070064148, Mar 22, 2007

Filed:

Nov 21, 2006

Appl. No.:

11/602647

Inventors:

David Holland - Granada Hills CA, US
Gavin Schutz - Glendale CA, US
Merle Sharp - Los Angeles CA, US

International Classification:

H04N 7/01

US Classification:

348441000

Abstract:

Systems and methods are provided for allowing a user to correct a discontinuous 2-3 field sequence within a disrupted video signal. A 2-3 field pattern fixer can be operated in a one-pass mode and/or a two-pass mode. In the one-pass mode, the disrupted video signal is analyzed to generate correction information, which is used to correct the disrupted video signal as it passes through the 2-3 pattern fixer, resulting in an undisrupted video signal with a continuous 2-3 field sequence. In the two-pass mode, the disrupted video signal is analyzed to generate correction information, which is then stored. This correction information is then used to correct a duplicate of the disrupted video signal, resulting in an undisrupted video signal with a continuous 2-3 field sequence. In this connection, the 2-3 field pattern fixer includes a field sequence detector, a field sequence analyzer, a field sequence generator and a multiple delay tap circuit. The field sequence detector generates field difference values in response to receiving the disrupted video signal. The field sequence analyzer analyzes these field difference values to determine one or more discontinuities within the discontinuous 2-3 field sequence. The field sequence generator generates one or more field sequence correction signals in response to this analysis. The multiple delay tap circuit applies these correction signals to a video signal to generate an undisrupted video signal having a continuous 2-3 field sequence. The 2-3 field pattern fixer can optionally includes a First-In-First-Out (FIFO) memory and a time code comparator, which can be used to store a multitude of the correction signals during the first pass of the two-pass mode, and for synchronizing the application of each of the correction signals to the duplicated disrupted video signal during the second pass of the two-pass mode.