Power line locked image processing systems
US4694339A · kind A · utility
2Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1984 |
| Grant date | Sep 15, 1987 |
| Priority date | — |
| Expiry date | May 29, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/126
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A line locking system for use with X-ray video imaging equipment comprising: a system oscillator, a divider for frequency dividing the output of the system oscillator to obtain a signal having a frequency that is an integer multiple of the line frequency, a comparator for comparing the phase of the integer multiple signal to the phase of the line signal and means for controlling the oscillator frequency responsive to the output of the comparator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.