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| Number | Title | Issue Date |
| 5673355 | Deemphasis & Subsequent reemphasis of high-energy reversed-spectrum components of a folded video signal A system for reproducing a luminance signal from a medium containing a previously recorded luminance signal with a high-frequency portion thereof compressed in dynamic range includes a circuit for recovering that luminance signal from the medium. Filterin... | 09/30/1997 |
