专利名称：CHECK DEVICE FOR VOICE MATRIX CIRCUIT 发明人：AKATSUKA HISAO
申请号：JP12062490
汽车排气管滴水
申请日：19900510
公开号：JPH0416100A
形容忙碌的句子
公开日：
简笔画白云
19920121刺猬英语怎么读
专利内容由知识产权出版社提供
摘要：PURPOSE:To discriminate that a voice matrix circuit is correctly operated and to attain complete check by confirming a signal sound outputted from an output terminal in respon to the changeover of a switch circuit. CONSTITUTION:Changeover switches 3, 5 are connected to the position of ON and a changeover switch 8 is connected to the position of L. When a signal tone of a frequency f2 comes from the left side channel, the operation of a voice matrix circuit 20 is implemented correctly. Then the changeover switches 3, 5 are connected to the position ON and the changeover switch 8 is connected to the position R. When a signal tone of a frequency f2 comes from the right side channel, the operation of the voice matrix circuit 20 is implemented correctly. Then the changeover switch 3 is connected to the position ON and the changeover switches 5, 8 are connected to the position OFF. When a signal tone of a frequency f1 comes from the right side channel, the operation of the voice matrix circuit 20 is implemented correctly.
申请人：SHARP CORP掩饰寂寞>笋怎么吃
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