| 摘要 |
A measurement of transmission speed-error can be obtained by utilizing the present inventive concepts with conventional pulse or telegraph distortion measuring apparatus. For each character in the pulse train fed to the apparatus, a period of time is established for making measurements. The transitions which occur during this time period are measured in the normal manner and displayed. The meter or other display apparatus is designed to divide the reading by an appropriate number in order to compensate for the cumulative effect of speed error, and an indication is also made as to whether the speed is faster or slower than normal.
|
