Abstract: A bifunctional turntable which includes a rotating shaft, a platter, a light sensor module, an audio control module, and a plinth is revealed. The rotating shaft which is driven by a power source to rotate drives the platter to rotate. Then the light sensor module disposed on the rotating shaft detects rotation speed of the platter for playing a record at normal speed. The audio control module is located in the plinth and disposed on a simulated record for detecting changes in the simulated record which is manually operated. Then the audio control module sends signals to a digital audio control system at a rear end for driving the digital audio control system to output audio signals. Thereby the present turntable plays not only vinyl records but also simulated records.

Abstract: A control system for fully automatic turntables is revealed. The control system includes a receiver module therein for receiving signals from application programs to activate a drive source and a control assembly which control a platter and a tonearm respectively. The control assembly includes a first rod provided with an upper rack and a second rod provided with a lower rack. The first and second rods are inserted and installed on a base. A power source disposed on the base is for driving a first gear set correspondingly and a connecting rod is also moved to drive a second gear set. Thus partial gears of the first and second gear sets are engaged with the upper and lower racks alternately. The first and second rods are further driven to move or stop the tonearm respectively. Therefore, automatic movement of the tonearm is achieved.

Abstract: A detection system of vinyl record players for detecting end of playback is revealed. The system includes a vinyl record player and a vinyl record control module. The vinyl record player consists of a tone arm, a cartridge connected to one end of the tone arm, a stylus connected to the cartridge, and a turntable. The vinyl record control module is arranged at the vinyl record player and is composed of a signal analysis unit, a signal output unit, a signal reading unit, and a vinyl record control unit electrically connected. The vinyl record control unit is electrically connected to a turntable control unit for stopping rotation of the turntable, or electrically connected to a tone arm lifting unit for ascending the tone arm, or electrically connected to both the turntable control unit and the tone arm lifting unit.

Abstract: An electric arm lifting and turntable's auto-stop assembly of a record player is revealed. A record player is disposed with a power-driven turntable, a rotatable and movable arm disposed on one side of the turntable, a lift mechanism used for pushing against and moving the arm upward, and a sensor. The arm is moveable over the turntable. The sensor is arranged at an arm rotating shaft of the arm and used for sending a signal while detecting that the arm is moved to a lift point over the turntable. The lift mechanism is activated to move the arm upward and the turntable is stopped simultaneously for protecting a needle on the arm while the sensor detects that the arm has been moved from the turntable to the lift point.

Abstract: The invention relates to a data processing module of a digital audio processing device, a digital audio processing controller module of a portable device and a control system. Using the data processing module of the digital audio processing device and the digital audio processing controller module of the portable device, the portable device can transmit control command packet to control the digital audio processing device. The user can use a large-size screen of the portable device to control the digital audio processing device to overcome the shortage in the display function of conventional device. Furthermore, when using the portable device under the condition where the hardware of the digital audio processing device is not changed, the functions of the digital audio processing device can be additionally extended. Therefore, the extended functions of the digital audio processing device can be flexibly added in response to customers and DJ's requirements.

Abstract: A method for operating cue points on a lighting ring of a digital multimedia audio player is revealed. A lighting ring for showing data related to digital music playing now is disposed around a turntable of a multimedia audio player. The lighting ring is arranged with a plurality of visual markers at important cue points by DJs for producing special sound effects while one of the cue point markers is set at a position that matches DJs' operation way and this is the position of an active cue point. Thereby during operation of the multimedia audio player, the obvious markers at the cue points allow DJs to operate the device easily and conveniently. Moreover, the active cue point can be set and adjusted according to different operation ways of DJs. Thus the present invention provides DJs with an intuitive reminder and convenient operation on the vision and the operational control.

Abstract: An audio signal player includes a turntable unit, a conductive touch-control plate on top of the turntable unit, a round disk, a round disk central shaft made of electricity-conductive materials and joined to the touch-control plate, a reflective-type photoelectric interrupter secured in the touch-control plate for finding out rotational speed and direction of the round disk, and a photoelectric interrupter in a lower end of the turntable unit for finding out rotational speed and direction of the turntable unit; when the round disk is manually rotated, the audio signal player will produce scratch sound effects according to the rotational speed and direction of the round disk; the user is allowed to touch the touch-control plate so as to produce a touch signal, thus making the audio signal player produce a particular scratch sound effect according to the touch signal.

Abstract: In a digital audio signal player having a simulated analogue record, a high frequency alternator is provided, which is connected to the microprocessor, and constantly sends out a high-frequency signal; the alternator has an output terminal electrically connected to a diode connected to the microprocessor; a control element is also connected to the diode. Music is played in a normal way when the microprocessor receives high-frequency signal in a non-reduced form. The control element will send an interfering signal to the diode to reduce high frequency signal passing through the diode when touched by hands, thus making the microprocessor receive high frequency signal in reduced form; music is played with speed and direction changing according to the movement of the control element when the microprocessor receives the reduced high frequency signal. Music is played normally as soon as hands are removed from the control element.

Abstract: In a digital audio signal player having a simulated analogue record, a voltage dividing circuit is provided that consists of a first, and a second leads connected to a respective one of two separate wound wires of a control element; the control element can be turned to simulate an analogue record being moved by hands on the turntable for the player to play music with speed and speed changing according to movement of the control element. The microprocessor can decide that users' hands have touched the control element to complete the voltage dividing circuit, which is normally open, on detecting a voltage drop in order to make music played in the special mode. Music is played in an original normal way when the hand is removed from the control element for disappearance of the voltage drop.

Abstract: A CD player is equipped with a CD inserting mechanism without loading plate; the CD inserting mechanism is equipped with single transmission gear set to be simple in structure and have reduced numbers of parts; the transmission gear set consists of a rubber roller, a tremor gear, and is a support; a belt is connected to a motor and the transmission gear set so that rotation of the motor can be passed on to the gear set; a compact disk will come into contact with the rubber roller to be conveyed towards inside of the CD player by means of the rubber roller after it is inserted into the inserting mechanism.

Abstract: In a sound mixing equipment, an adjusting circuit has reflecting plates joined to a control in opposite directions. The adjusting circuit has a first light emitting diode and a first light transistor disposed to face one of the reflecting plates, and a second light emitting diode and a second light transistor disposed to face other one of the reflecting plates. Distance from the light emitting diodes to the corresponding reflecting plates is changed by means of shifting the control, making the light transistors receive infrared rays reflected by the plates at adjusted distance to have desired amount of electrical currents. Channels and output terminals of the light transistors are connected to input terminals of sound mixing mechanism. Thus, proportion of sound signals of the channels to be mixed is adjusted.

Abstract: A digital audio signal player having a simulated analogue record has a control element, which can be turned with hands to simulate an analogue record on a turntable being turned by the hands so that music can be played with special effect, i.e. speed and direction changing according to movement of the control element. Those portions of musical data that are suitable to be played with special effect are previously marked in the RAM. When the DJ touches the control element, the marked data will be located and sent out immediately during the course of playing music so that the DJ can perform the special effect on the marked suitable portions of music without delay when he wants to.

Abstract: A digital audio signal player having a simulated analogue record includes a laser pick-up used for reading the data of an analogue CD, a microprocessor, a digital audio signal processor electrically connected to the microprocessor, a digital/analog converter electrically connected to the audio signal processor, and a turnable control element. The data of the CD is stored in a RAM of the audio signal processor. The control element is made of conductive materials, and electrically connected to both the audio signal processor and the microprocessor, and can send a glitch to the microprocessor when touched by the user's hands. The microprocessor will make the audio signal process and send out the data on detecting that the difference between the glitch and an original signal exceeds a preset amount. The control element has a sensor for sensing the rotating speed and direction thereof so as to make the audio signal processor to process and send out the data according to the movement of the control element.

Abstract: A digital sound-signal broadcaster includes a control faceplate to control the rotating speed and direction of a turntable so as to operate the music data of a CD stored in a dynamic memory chip to make a variety of special sound effects to heighten atmosphere of joy, not only easy in handling and convenient in carrying but possible to prevent any wear as well.

Abstract: A driving mechanism for a record player includes a fixing base, a solenoid, a housing, a spindle, a sleeve, a turntable and a magnetic ring. The solenoid is fixed on the fixing base for rotating the housing. The spindle is located in the center of the housing and extends upward through the sleeve fixed in a center hole of the turntable. The magnetic ring is fixed under the lower surface of the turntable and faces the upper surface of the housing with an aperture, producing strong magnetism against the housing. Thus, the turntable is pulled down-ward to increase tightness between itself and the sleeve so that the turntable may rotate synchronously with the spindle, preventing inertia torque and slide difference between the turntable and the spindle.

Abstract: A CD player comprising a CD cap swingable to open or close with the ability to turn on and off power by its closing and opening movement. A CD turning disc supporter is displaceable up and down for rotating a CD placed in one of the recesses formed in the turning plate or to lower the CD turning disc for swinging open the CD cap to change a CD turning disc to change a CD or to package the CD player for transportation by use of two projections and a roller provided at one side of the CD turning disc supporter interface with an inclined-faced wheel so that the disc supporter may be maintained in an immovable location.

Abstract: A separable compact disc player with an elastic hold-down member consists of a cabinet, a base and a dust cover. The improvement of the present invention is that a hold-down member which is beneath one side of the base includes a hold-down block disposed at the external end of the hold-down member, a rod protruding out of an elliptical slot of the base and a blind hole disposed in the internal end of the hold-down member. The blind hole is capable of being inserted and pushed by one end of a spring member whose the other end is fastened on an under wall of the base. Under the elasticity of the spring member, the hold-down member is capable of easily protruding into or being withdrawn from a longitudinally contoured through hole of the cabinet so as to assemble or disassemble the base and the cabinet rapidly.