Fast and cheap correct resolution conversion for digital numbers
US6707460B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2001 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Apr 24, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for converting an N-bit resolution input to an M-bit resolution output is provided. Upon receiving an original input having an N-bit input sequence, the method and apparatus generates an (N+M)-bit sequence by repeating the N-bit input sequence in the original input. A new M-bit sequence is generated by taking M Most Significant Bits from the (N+M)-bit sequence, and a new N-bit sequence is formed by taking N Most Least Significant Bits from the (N+M)-bit sequence. The M-bit resolution output is then formed by adjusting the new M-bit sequence based on the difference between the new N-bit sequence and the N-bit input sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.