TH34003B - Recording machine / Simulated production And how to control the rotation of the recording medium - Google Patents

Abstract

DC60 (23/12/54) The faulty voltage, which will include severe fluctuations due to noise, is applied to the LPF and high frequency components as the noise is eliminated. out The error voltage is transmitted through the LPG and the reference level. For example, a voltage level 0 is passed to Comparator The comparator compares the level magnitude of two voltages to each other and will output a signal which will show the polarity at Consistent with the results of the comparison As already described, by moving the high frequency component that has been incorporated to the wrong voltage. Misses to be passed on Also a comparator with polarized signal LPFs where noise variations are reduced. And it can get good quality, so the polarity of the wrong voltage. For disc rotation control can be judged accurately, error voltages, which include severe variations due to plugging interference, are applied to LPFs and high frequency components. Because the noise will be eliminated. An error power that is transmitted through the LPG and reference levels. For example, level 0 output power is passed to Comparator The comparator compares the scale of two levels. Each output power and the signal output, which will show the polarity at Consistent with the results of the comparison As explained above, by moving the high frequency component that has been incorporated, the faulty output power will be passed on. Also a comparator with polarized signal LPFs where noise variations are reduced. And it can get good quality, so the polarity of the wrong output power. For disc rotation control can be accurately judged.

Claims (8)

1. Recorder / Simulated Production This controls the rotation of a disc with a track recorded on it at a predetermined wobble frequency. Which corresponds to Modulated address information Which includes The fault pathway for generating the fault signal corresponds to Modulated address information Interference elimination pathways for the elimination of signal elements from the signal That mistake Polarity judgment means for the determination of Error after variation due to noise. Which is included in the signal Such mistake It has been eliminated by means of noise elimination. The sensing path for detecting the magnitude of the fault signal is said to be of the path in which the fault originated and the rotational path for the rotation of the recording medium. Depending on the code that is set Of the said fault signal And the detected size of the fault signal 2. Recorder / Simulated Production Who has been entitled to claim No. 1, which way of modification said Will eliminate the variability caused by the noise of the said fault voltage by using Low pass filter 3. Recorder / Simulated Production Who has been entitled to claim No. 1, which way of modification said The magnitude of the aforementioned error voltage is compared to the previously set reference voltage. And will eliminate the components of warping caused by such noise that are dependent on The difference between a signal with a previously predetermined delay of the result. Comparison and no delay signal, comparison results 4. Recorder / Simulated Production Who has been entitled to claim No. 1, which way of modification said Will change the frequency of variation That will be eliminated depending on whether the operation is recording or simulated production. 5. Recorder / Simulated Production Who has been entitled to claim No. 1, which way of modification said Will change the frequency of variation To be eliminated depending on the type of recording medium. 6. Recorder / Simulated Production Received claim No. 1, where such rotation path will be provided with a spindle motor. 7. Recorder / Simulated Production Received the right to claim No. 6, which the recorder / production model said. Will be further provided with a retarding path (deceleration means) for delaying the rotation of such a spindle motor. 8.Method of recording medium rotation control for disc rotation control. For a recording that has a groove that has been recorded on it At a predetermined budding frequency at Corresponds to the modulated address information Which includes the steps of; The generation of an error signal corresponding to the modulated address information. Elimination of noise from such fault pressure Determination of the polarity of the voltage such a fault after a variation due to The composite noise is included in the said fault voltage will be eliminated. To detect the magnitude of the said fault signal and the rotation of the medium for the recording, in accordance with the specified frequency of the error signal. Such mistake And the detected size of the fault signal