Correcting data reading device in a digital convergence correcting device
US5012332A · kind A · utility
5Cited by
3References
7Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 26, 1989 |
| Grant date | Apr 30, 1991 |
| Priority date | — |
| Expiry date | Jan 26, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/28
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital convergence correcting device effecting convergence correction by using convergence correcting data stored in a memory which includes an address fixing device which, in the case where convergence correcting data are insufficient, reads out in succession the correcting data corresponding to the last horizontal scanning line for the portion lacking in the data so that the correcting data are used repeatedly, and which, in the case where convergence correcting data are excessive, only necessary convergence correcting data are used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.