The apparatus and method provides for an improvement to a system which converts wide amplitude range digital data recorded in floating point digital word form to analog signals within a limited amplitude range. The apparatus and method provides for the situation wherein the digital data can represent an analog signal for which on a general decrease in amplitude increases may be superimposed. The apparatus includes a digital/analog converter whose reference voltage is individually determined for each sample. This reference voltage is taken from a saw tooth oscillator at an instant of time determined by a delay timer which responds to changes, with respect to a desired average amplitude, of the actual amplitude of the converted data.
申请公布号
DE2430018(B2)
申请公布日期
1979.07.05
申请号
DE19742430018
申请日期
1974.06.22
申请人
DEUTSCHE TEXACO AG, 2000 HAMBURG
发明人
HELBIG, KLAUS, DR., 3101 WIETZE;RIETSCH, EIKE, DR., 3100 CELLE
