发明名称 |
Verfahren und Gerät zur Wegnahme von verborgenen Flächen. |
摘要 |
<p>A memory device having a plurality of addressable memory locations, each of which can be defined uniquely by an address word having an X component and a Y component, which memory locations correspond respectively to grid points in a rectangular array at a pitch dX in the X direction and a pitch dY in the Y direction, is loaded with data values Q. In a first operating cycle, a first address word defining a memory location corresponding to a first grid point is generated. In a second cycle, a first value of Q as a function of X and Y is computed, and concurrently a second address word defining a memory location corresponding to a second grid point is generated. In a third cycle, the first value of Q is compared with a previous value of Q for the first grid point, and concurrently a third address word defining a memory location corresponding to a third grid point is generated and a second value of Q is computed. In a fourth cycle, the first value of Q is loaded into the memory location corresponding to the first grid point if that first value of Q bears a predetermined relationship to the previous value of Q.</p> |
申请公布号 |
DE3854073(D1) |
申请公布日期 |
1995.08.03 |
申请号 |
DE19883854073 |
申请日期 |
1988.10.18 |
申请人 |
TEKTRONIX, INC., WILSONVILLE, OREG., US |
发明人 |
DOORNINK, DOUGLAS J., PORTLAND OREGON 97223, US;DALRYMPLE, JOHN C., PORTLAND OREGON 97219, US |
分类号 |
G06T15/40;(IPC1-7):G06T15/40 |
主分类号 |
G06T15/40 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|