Data simulation in sector scan imaging systems
US4310853A · kind A · utility
9Cited by
18References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1980 |
| Grant date | Jan 12, 1982 |
| Priority date | — |
| Expiry date | Jul 30, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/52063
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Encoded data is sequentially read into a shift register having a number of stages larger than the largest inter-scan "void" or "hole" to be filled. A priority encoder determines the length of the void to be filled, and the amplitude difference of successive scan data samples is evaluated. For each display picture element in the void, a weighting select PROM determines an appropriate weighting factor, based on the size of the void to be filled. Separate positive differential and negative differential memories are thereby energized to produce, for each display picture element in the hole, a simulated display picture data element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.