Patent ID: 7235930

Claim:
A decorative tree with coordinated visual and sound effects, the decorative tree comprising: a tree shape stand; multiple light strings mounted on the tree shape stand; and a control box with a speaker, the control box connected to the multiple light strings and comprising: a voltage transformer having an input terminal connected to an AC voltage and an output terminal connected to an input terminal of a voltage regulating circuit, wherein the voltage transformer transforms the AC voltage to a first DC voltage, and the voltage regulating circuit transforms the first DC voltage to a second DC voltage; multiple thyristors connected between the light strings respectively and a ground, each thyristor having a trigger terminal; multiple control switches respectively connected to the trigger terminals of the multiple thyristors; a central control circuit having an audio signal output terminal and multiple control signal output terminals, the control signal output terminals respectively connected to the multiple control switches, the central control circuit outputting audio signals for the speaker and driving signals for the light strings to generate sound effects and visual effects that coordinate with each other; and an audio amplify circuit having an input terminal connected to the audio signal output terminal of the central control circuit to receive and amplify the audio signals, and having an output terminal connected to the speaker, the amplified audio signals are output by the speaker.