Circuit for producing a periodic, essentially para

专利名称：Circuit for producing a periodic, essentially

parabolic signal

发明人：Hulshof, Jozef Johannes Maria申请号：EP87202368.4申请日：19871130公开号：EP0273497A1公开日：19880706

专利附图：

摘要：A circuit for supplying a parabolic signal by squaring (1) a sawtooth-shapedsignal. For eliminatinga disturbance occurring during the retrace period, a signal isgenerated (4) during this period whose polarity is opposite to that of the parabolic signal

occurring during the trace period, both the generated signal and the derivative withrespect to the time of this signal assuming values at the start and end of the retraceperiod which are substantially equal to the corresponding values at the same instants ofthe essentially parabolic signal occurring during the trace period and of the derivativewith respect to the time of this signal.

申请人：Philips Electronics N.V.

地址：Groenewoudseweg 1 5621 BA Eindhoven NL

国籍：NL

代理机构：Steenbeek, Leonardus Johannes

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