公开(公告)号：US3609717A

公开(公告)日：1971-09-28

申请号：US3609717D

申请日：1969-08-28

申请人： NIPPON ELECTRIC CO

发明人： OHTERU SADAMU ,  KOBAYASHI HIROSHI ,  UCHIDA YUSHI

IPC分类号： H03K3/51 ,  H03K5/01 ,  G11C11/08 ,  G11C7/00

CPC分类号： H03K5/01 ,  H03K3/51

摘要： Apparatus for converting a unipolar pulse to a bipolar pulse is disclosed in accordance with the teachings of the present invention wherein a saturable magnetic core exhibiting a substantially rectangular hysteresis characteristic and admitting of first and second states of saturation is provided with an input winding, an output winding and reset winding means wound thereabout. A unipolar pulse applied to the input winding drives the magnetic core into its first state of saturation, thereby inducing a pulse of like polarity to the unipolar pulse in the output winding. When the unipolar pulse terminates, a reset current is applied to the reset winding means to drive the magnetic core into its second state of saturation, thereby inducing a pulse of opposite polarity to the unipolar pulse in the output winding. The bipolar pulses thus induced in the output winding may be utilized as write-in pulses for a transfluxor.

公开(公告)号：US3543257A

公开(公告)日：1970-11-24

申请号：US3543257D

申请日：1968-05-10

申请人： NIPPON ELECTRIC CO

发明人： OHTERU SADAMU ,  KOBAYASHI HIROSHI ,  FUKIAGE KAZUO ,  UCHIDA YUSHI

IPC分类号： G11C27/02 ,  G11C11/08

CPC分类号： G11C27/022

公开(公告)号：US3617726A

公开(公告)日：1971-11-02

申请号：US3617726D

申请日：1969-11-17

申请人： NIPPON ELECTRIC CO

发明人： UCHIDA YUSHI ,  WATANABE MINEKI ,  OHTERU SADAMU ,  KOBAYASHI HIROSHI

IPC分类号： G06G7/122 ,  G06G7/19 ,  G11C27/02 ,  G06G7/26

CPC分类号： G11C27/022 ,  G06G7/122 ,  G06G7/1921

摘要： Automatic waveform analyzing apparatus for deriving arbitrary waveforms by the synthesis of a plurality of optimumly weighted fundamental waveforms whose optimum weighting factors are determined by repeatedly sampling said plurality of fundamental waveforms at a plurality of sampling points and modifying previously established values for such weighting factors in response to values obtained at each sampling point is provided in accordance with the teachings of the present invention. In the automatic waveform analyzing apparatus according to the present invention, a plurality of analog memory elements are disposed in accordance with the sampling points selected such that one such analog memory elements is associated with each sampling point. The analog memory elements are read and each readout pulse derived therefrom is branched and apportioned into a plurality of output signals representing the value of each fundamental waveform as evaluated at the sampling point associated with the analog storage element producing such readout pulse. The branched and apportioned output signals from all of the analog memory elements are then selectively added on the basis of the correspondence of the associated fundamental waveforms associated therewith and a summation signal is produced for each fundamental waveform relied upon. Each summation signal produced is then apportioned on the basis of the value of the fundamental waveform associated therewith at each of the sampling points selected. Such apportioned values are then selectively added and compared to corresponding values of the arbitrary waveform. The analog storage element associated with the sampling point at which the selective addition and comparison has taken place has its contents selectively modified. This operation is repeatedly performed at each sampling point until the selective comparison indicates that an equivalent waveform has been synthesized.