发明名称 LEVEL SETTING CIRCUIT
摘要 PURPOSE:To connect different levels smoothly and easily by changing the level of an input signal gradually at digital intervals at the transfer from a sound recording mode to the pause state or from the pause state to the sound recording mode. CONSTITUTION:In the sound recording mode set up by depressing a sound recording button 10e, an input signal from an input terminal 1 is set up to a level L1. When an automatic fading button 12 is depressed at a time t1 in the sound recording mode, a control circuit 8 attenuates the level of the input signal gradually at digital intervals. If the level of the input signal reaches a level L2 at a time t2, the control circuit 8 turns the mode to the pause state and returns the level of the input signal up to the level L1 instantaneously at a time t3. If the automatic fading button 12 is depressed at a time t4 in the pause state, the control circuit 8 attenuates the level of the input signal instantaneously down to the 2nd level L2, releases the pause state at a time t5 and then increases the level gradually at the digital intervals to return the level up to the level L1.
申请公布号 JPS6070503(A) 申请公布日期 1985.04.22
申请号 JP19830179759 申请日期 1983.09.28
申请人 SONY KK 发明人 NAKAMURA KUNIO;SEKII YASUAKI
分类号 G11B20/04;G11B5/027;G11B20/10 主分类号 G11B20/04
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