Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2006-05-23
2006-05-23
Wong, Allen (Department: 2613)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240000, C375S240120, C375S240240, C375S240250
Reexamination Certificate
active
07050494
ABSTRACT:
The present invention relates to a method for displaying picture frames using single field data in interlaced encoded image data having a two-field structure. This method comprises the steps of: performing inverse quantization of the interlaced encoded image data to obtain DCT (Discrete Cosine Transform) coefficients of each of the field blocks; selecting one of two fields forming each picture frame; adding zero values after the DCT coefficients of each of field block in the selected field in order to obtain compensated DCT coefficients having a data size corresponding to one frame block; and performing inverse DCT of the compensated DCT coefficients to obtain image data for each frame block. According to this method, there is no time-lag between the odd and even numbered scanning lines in the reproduced picture frames, and the dynamic images are clear even if the motion of the images is fast.
REFERENCES:
patent: 5175618 (1992-12-01), Ueda et al.
patent: 5418570 (1995-05-01), Ueno et al.
patent: 5453788 (1995-09-01), Matsushima et al.
patent: 5485279 (1996-01-01), Yonemitsu et al.
patent: 5544266 (1996-08-01), Koppelmans et al.
patent: 5703651 (1997-12-01), Kim et al.
patent: 5872600 (1999-02-01), Suzuki
patent: 6081295 (2000-06-01), Adolph et al.
patent: 6104753 (2000-08-01), Kim et al.
patent: 8-294115 (1996-11-01), None
patent: 9-219838 (1997-08-01), None
patent: 10-32821 (1998-02-01), None
Foley & Lardner LLP
NEC Corporation
Wong Allen
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