专利名称：DISC REPRODUCER
发明人：TANAKA HIROMICHI,TAKEUCHI
TAKASHI,KOBAYASHI MASAHARU,ARAITAKAO,OOKUBO EIJI
申请号：JP999482申请日：19820127公开号：JPH0454311B2公开日：19920831
摘要：PURPOSE:To execute the program search effectively with a simple operation, bymoving a pickup radially to a disc and monitoring sound of a speaker obtained during themovement by the user. CONSTITUTION:In operating a pickup moving speed changeoverswitch 11 manually or with an electronic signal by the user, a pickup 1 is moved in crossingover signal tracks of the disc 2 and tracks a signal track intermittently. Thus, the speakersound is a demodulation signal while the pickup 1 tracks the signal track and a noisesignal while no tracking is done. To reduce this noise, a control circuit 8 controls anattenuator 7 in receiving a fast feed signal. The user monitors the intermittent musicsound signal and the noise signal, makes program search by listening to the non-signalpart between music recordings included in the sound signal and when the desiredprogram search is carried out, normal reproduction is performed by the changeoverswitch 11.
申请人：HITACHI LTD
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