Data processing apparatus
US7352914B2 · kind B2 · utility
2Cited by
9References
37Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 19, 2002 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | Apr 28, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2201/0083
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing apparatus is provided for detecting distortion of a data signal to which a template signal has been introduced into different frequency bands of the signal. The apparatus includes a frequency component processor operable to generate data representative of the frequency components of the first and the second frequency bands of the data signal, and a detection processor operable to identify the distortion of the data signal in accordance with a relative frequency change between the versions of the recovered template signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.