Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2005-04-01
2009-10-20
Wong, Allen (Department: 2621)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240000, C375S240010, C375S240250
Reexamination Certificate
active
07606306
ABSTRACT:
An output method for improving video image quality is provided. First, a frame data of a first frame is received, wherein the first frame may coincide with a first type or a second type. Thereafter, the first frame is subjected to a signal process step to output a processed first frame with a first standard, wherein the processed first frame comprises a first signal to noise (S/N) ratio. Next, a frame data of a second frame with a second standard is received, wherein the second frame coincides with a third type. Thereafter, a first decompression process of frame data is performed on the second frame to output a processed second frame with the first standard, wherein the processed second frame comprises a second S/N ratio. In addition, a difference between the first S/N ratio and the second S/N ratio is smaller than a predetermined minimum tolerance.
REFERENCES:
patent: 6018368 (2000-01-01), Kim et al.
Liao Jen-Yi
Lin Tsung-Hsien
Yang Ying-Chih
Jianq Chyun IP Office
Sunplus Technology Co. Ltd.
Wong Allen
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