Digital signal transformation device and method
US6523051B1 · kind B1 · utility
5Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1999 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Jun 15, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/635
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital signal transformation method, in which the original samples (x2i; y12i) of the digital signal are transformed into output samples (y12i, x2i). Any output sample being calculated by a function of original samples, and/or of intermediate samples (t2i+1, v2i, t12i, v12i+1), and/or of output samples is characterized in that each function is broken down into elementary operations, and the elementary operations of all the functions are ordered so as to minimize the number of samples that are simultaneously necessary. The invention makes it possible to minimize the memory space necessary to calculate the transformation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.