Digital audio signal player having a simulated analogue record

A digital audio signal player having a simulated analogue record, comprising

• a driving IC;
• a CD driving motor electrically connected to said driving IC for rotating a turntable provided for holding an analogue CD thereon;
• an ejection motor electrically connected to said driving IC for ejecting said turntable so as to allow removal of said CD;
• a laser pick-up capable of being moved by a laser pick-up moving motor connected to said driving IC;
• a microprocessor;
• a high frequently amplifier electrically connected to said microprocessor to be capable of sending out laser light when activated by said microprocessor;
• said laser pick-up beginning to read data of said CD when said microprocessor activates a CD digital processor electrically connected to said laser pick-up;
• said laser pick-up sending a signal to said CD digital processor via said high frequency amplifier about a status of focusing of said laser light;
• said microprocessor stopping working if said laser light fails to focus;
• said microprocessor activating said CD digital processor to make said CD driving motor begin to rotate said CD positioned on said turntable at twice a normal speed if said laser light has focused;
• said laser pick-up sending data of said CD to both said microprocessor and a digital audio signal processor electrically connected to both said CD digital processor and said microprocessor;
• said digital audio signal processor including a dynamic RAM and an analog/digital converter so as to be capable of storing digital data, into which said data of said CD are converted by said converter;
• a control panel electrically connected to said microprocessor for showing information about said CD;
• a digital/analog converter electrically connected to said digital audio signal processor;
• a low pass filter electrically connected to said digital/analog converter;
• and characterized by a turnable control element made of conductive materials, and electrically connected to both said digital audio signal processor and said microprocessor;
• said turnable control element sending out an original signal when not touched by a person, and being capable of sending out a glitch stronger than said signal to said digital audio signal processor and to said microprocessor via a glitch detecting circuit when touched by a person;
• said glitch detecting circuit processing said glitch before said glitch is sent to said microprocessor;
• on receiving said glitch, said microprocessor making a comparison between said original signal and said glitch for determining a difference between both so as to make said digital audio signal processor process and send out said digital data when said difference exceeds a predetermined amount;
• said turnable control element having a sensor for sensing rotating speed and direction so as to cause said digital audio signal processor to process and send out said data in a manner according to a movement of said control element;
• said data being sent to said digital/analog converter to be converted into analogue ones and played as music with said low pass filter after said conversion;
• whereby a user can rotate said control element with a hand to decide on a item of said music to be played, and playing speed and direction of said item so as to play said music with changed tone and speed;
• said music being played in an original way as soon as said user removed said hand from said control element for disappearance of said glitch.