Patent ID: 8884535

Claim:
A light emitting diode control system using modulated signals, the light emitting diode control system configured to store a computer control data in a data storage unit and configured to control colors and intensities of light emitting diodes with a data signal outputted from the data storage unit, the light emitting diode control system including: a power conversion circuit configured to convert an alternating current power into a direct current power; a control circuit electrically connected to the power conversion circuit, the control circuit receiving the direct current power outputted from the power conversion circuit and receiving the data signal outputted from the data storage unit, the control circuit configured to modulate the data signal to a modulated signal; and at least a light emitting diode emission circuit electrically connected in series to the control circuit through a transmission line, the light emitting diode emission circuit receiving the direct current power and the modulated signal outputted from the control circuit and configured to vary the colors and intensities of the light emitting diodes, wherein the control circuit includes: a voltage stabilizer electrically connected to the power conversion circuit; a microcontroller electrically connected to the power conversion circuit, the microcontroller receiving the data signal outputted from the data storage unit; and a first modulation unit electrically connected to the power conversion circuit, the microcontroller, and the voltage stabilizer, wherein the light emitting diode emission circuit includes: an addressing unit; a voltage regulator electrically connected to the control circuit; a signal acquisition unit electrically connected to the voltage regulator; an amplifier electrically connected to the signal acquisition unit; a demodulation unit electrically connected to the amplifier; an oscillator electrically connected to the voltage regulator; a filter electrically connected to the demodulation unit; a recognition and logic control unit electrically connected to the filter and the addressing unit; a counting and shift registering unit electrically connected to the recognition and logic control unit; a second modulation unit electrically connected to the amplifier, the demodulation unit, and the recognition and logic control unit; and an address register electrically connected to the recognition and logic control unit and the addressing unit, wherein the addressing unit is configured to address the light emitting diode emission circuit; the addressing unit is applied to a voltage different from a working voltage of the addressing unit for addressing the light emitting diode emission circuit; identification for addressing the light emitting diode emission circuit is burned into the addressing unit.