专利名称：MAGNETIC RECORDING AND REPRODUCING DEVICE
周日清>描写江南春天的诗句
发明人：OOTSUKA TOORU
吐槽的意思
申请号：JP5493682
克利亚瑜伽申请日：19820402
公开号：JPS58171716A
女排精神>crashed
公开日：
19831008
专利内容由知识产权出版社提供
摘要：PURPOSE:To compensate the deviation of tracking due to a temperature characteristic and a cular change, by detecting the variance of the voltage value of the operating point of a bimorph plate in the exit part of a track and applying a voltage for compensation to the bimorph plate. CONSTITUTION:The voltage of the operating point of a bimorph plate 7a is denoted as V'3. The comparison output V'3 from a comparing circuit 17a is sampled in a sampling and holding circuit 85a just before a switching pul PX falls, and this output is compared with a reference voltage in a comparing circuit 86a.
针织毛衣
A positive voltage is supplied as the comparison output to a counter 87a, and components corresponding to one switching pul PX are substrated, and a counted value smaller than the pret value of the counter 87a by 1 pass a digital-analog converter 88a and is supplied as a compensating voltage to the bimorph plate 7a through an adding circuit 15a, and a head 6a traces the track accurately even in the entrance part of the track.
申请人：SONY KK
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