Method and means for filtering and updating pixel data
US4375671A · kind A · utility
18Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 3, 1980 |
| Grant date | Mar 1, 1983 |
| Priority date | — |
| Expiry date | Nov 3, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/52028
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Pixel data stored in a display memory of an ultrasonic scanning system is updated in response to new pixel data generated from a reflected ultrasonic wave and stored pixel data. A lookup table of pixel values is provided in a second memory, and the second memory is addressed using the new pixel data and the stored pixel data. The value stored in the second memory at the address is then used to update the display memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.