| 摘要 |
FIELD: medical equipment, electrophysiology, examinations results archives on tape recorders. SUBSTANCE: apparatus has analog keys unit, oscillator, analog keys sampling unit, step-by-step signal forming unit, modulators unit. Oscillator is connected with analog keys sampling unit and with step-by-step signal forming unit. Output of analog keys unit is connected with the first input of modulators unit. Output of step-by-step signal forming unit is connected with the second input of modulators unit, outputs of which are designed to be connected to two channels of tape-recorder. In recording mode apparatus instead of step-by-step signals forming unit is added with channel choice signal forming unit, the second additional output of which is connected to additional sampling input of analog keys unit. Output of oscillator is also connected with additional input of modulators unit. In play back mode apparatus, that has demodulates unit, inputs of which are connected to output of two channels of tape-recorder and outputs are connected through mating device with computer, is added with analog keys unit, analog keys sampling unit, carrying frequency separation unit, correction signal separation unit, signal correction circuit. In the case input of second channel of demodulators unit is additionally connected to input of carrying frequency unit, output of which is connected to input of analog keys sampling unit, second output of demodulates unit is connected to additional input of zero setting of analog keys sampling unit. The first output of demodulates unit is connected to eight inputs of analog keys unit and to the first input of correction signal separation unit. The third output of channel choice signal forming unit is connected to the second input of correction signal separation unit, output of which is connected to the first input of signal correction circuit, the second output of signal correction circuit is connected with output of analog keys unit. EFFECT: apparatus allows to avoid information signals distortion during recording and play back due to introduction of autocorrection signal. |
