Reverse discrete cosine conversion circuit
An inverse disperse cosine transformation circuit comprises ten difference sum operation circuits, three circumgyrating operation circuits, a constant multiplication circuit; they are connected with each other as Toeffler method. for example, using a difference sum circuit of 20 bits, a circumgyrati...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | An inverse disperse cosine transformation circuit comprises ten difference sum operation circuits, three circumgyrating operation circuits, a constant multiplication circuit; they are connected with each other as Toeffler method. for example, using a difference sum circuit of 20 bits, a circumgyrating operation circuit of 20X15 bits, two circumgyrating operation circuits of 19X15, a constant multiplication circuit of 20X15, the inverse disperse cosine transformation circuit in the invention can decrease circuit area, length of key path and quality of image. |
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