초록 ▼

The present invention is directed to a method of and and apparatus for continuously generating desired pulses during assumed successive desired pulse intervals with a very high time resolution by digitally predetermining the time values related to the start of the desired pulse intervals. These time

The present invention is directed to a method of and and apparatus for continuously generating desired pulses during assumed successive desired pulse intervals with a very high time resolution by digitally predetermining the time values related to the start of the desired pulse intervals. These time values are divided into coarse and fine time rasters and coarse pulse intervals are generated from the assumed desired pulse intervals. The coarse pulses in the coarse time raster are generated from the desired pulses and each coarse pulse start and coarse pulse end, respectively is associated with a coarse pulse correction value. By adding the coarse pulse interval correction value to the coarse pulse correction value for the start and the end of the coarse pulse, respectively, a sum correction value is obtained and divided into a partial value associated with the fine time raster. The partial value of the sum correction value is used as a control value for a selected time delay for the coarse pulse edge shifted.

대표청구항 ▼

Apparatus for continuously generating desired pulses during assumed successive desired pulse intervals with a very high time resolution comprising: means for determining the time values for the duration of the desired pulse intervals and the time values related to the start of the desired pulse inte

Apparatus for continuously generating desired pulses during assumed successive desired pulse intervals with a very high time resolution comprising: means for determining the time values for the duration of the desired pulse intervals and the time values related to the start of the desired pulse intervals to establish the start and the end of the desired pulses, and dividing the edges for a coarse and a fine time raster, means for dividing the determined time values into a coarse time raster and into a fine time raster, means for generating continuous, successive coarse pulse intervals in the coarse time raster together with associated coarse pulse interval correction values in the fine time raster from the desired pulse intervals to obtain the duration of the desired pulse intervals by cumulatively adding the duration of the coarse pulse interval to the associated coarse pulse interval correction value, means for generating the desired pulses in the first time raster during coarse pulse intervals in the coarse time raster, the time values for the start and the end of the coarse pulses being related to their respective associated coarse pulse interval, and each coarse pulse start and coarse pulse end, respectively being associated with a coarse pulse correction value so that by respectively adding the time value for the coarse pulse start and the coarse pulse end to the associated coarse pulse correction value, the time value, related to the start of the desired pulse interval, is respectively obtained for the start and the end of the desired pulse, means for adding the coarse pulse interval correction value to the coarse pulse correction value for the start and the end of the coarse pulse, respectively, such that a sum correction value is obtained, means for dividing the sum correction value into a first partial value associated with the fine time raster and, if necessary, into a second partial value associated with the coarse time raster, means for shifting the coarse pulse edge by the coarse time raster corresponding to the second partial value of the sum correction value, and means for using the first partial value of the sum correction value as a control value for a selected time delay for the coarse pulse edge shifted, or, in the absence of the second partial value of the sum correction value, for the unshifted coarse pulse edge.