Circuit for detecting phase error of color burst signal
US5251014A · kind A · utility
2Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1992 |
| Grant date | Oct 5, 1993 |
| Priority date | — |
| Expiry date | Jun 4, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D13/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a phase error detector for detecting a phase error .theta. of an input color burst signal from a phase of a reference signal from sin .theta. component and cos .theta. component, if either one of the sin .theta. component and cos .theta. component requires M bits for its expression, the both values are divided by a same value to shift in bits to be expressed in N bits (N<M), thereby preventing the subsequent circuit from increasing in scale.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.