Information signal processing apparatus, picture information converting apparatus, and picture displaying apparatus
US6483545B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1999 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Jul 21, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/0145
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A 525i (interlace) signal can be converted into a 1050i signal or a 525p (progressive) signal. A calculating circuit generates pixels of an output picture signal with a linear estimation expression of predictive taps received from a tap selecting circuit and a coefficient received from a coefficient memory. The coefficient memory stores coefficients pre-obtained for individual classes. A class is determined by combining a spatial class corresponding to spatial class taps received from a tap selecting circuit and motion class taps received from a tap selecting circuit. A line sequential converting circuit converts a scanning line structure of an output signal of the calculating circuit 34 and obtains an output picture signal. The output picture signal is designated with a conversion method selection signal. Information corresponding to the selection signal is loaded from an information memory bank to the coefficient memory and registers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.