专利名称:CHECK DEVICE FOR VOICE MATRIX CIRCUIT 发明人:AKATSUKA HISAO
申请号:JP12062490aaron什么意思>troublemaker什么意思
determined
申请日:19900510
高一英语辅导报答案>点菜英语十六大报告全文公开号:JPH0416100A
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职称外语考试公开日:
19920121
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
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