发明名称 |
Appending pseudo-random sub-LSB values to prevent intensity banding |
摘要 |
Embodiments of the present invention provide a test and measurement instrument that displays acquired data on a logarithmic scale without intensity banding. The test and measurement instrument processes the acquired data before it is displayed by appending pseudo-random sub-LSB (least significant bit) values to it. When the processed acquired data is displayed on a logarithmic scale, the pseudo-random sub-LSB values fill in the gaps between discrete power levels, thereby eliminating intensity banding and providing a smooth, visually pleasing display. |
申请公布号 |
US9002004(B2) |
申请公布日期 |
2015.04.07 |
申请号 |
US201113085678 |
申请日期 |
2011.04.13 |
申请人 |
Tektronix, Inc. |
发明人 |
Eby David |
分类号 |
H04L9/00;G06F11/00;G01R13/02;G01R15/00 |
主分类号 |
H04L9/00 |
代理机构 |
Marger, Johnson & McCollom, P.C. |
代理人 |
Nelson Michael A.;Harrington Andrew J.;Marger, Johnson & McCollom, P.C. |
主权项 |
1. A test and measurement instrument comprising:
a processor that appends pseudo-random values to digital data to produce processed digital data, the pseudo-random values having a distribution, and having a resolution that is less than a least significant bit of the digital data; and a display device that displays the processed digital data on a logarithmic scale. |
地址 |
Beaverton OR US |