Patent ID: 7655851

Claim:
A tuning device of wireless communication type, comprising: a sound collecting unit including an input section for receiving a signal of a sound or a vibration produced by a musical instrument and outputting a sound signal; a parameter computing section for computing pitch information based on the sound signal acquired from the input section and computing an amount of difference between the pitch information and reference pitch information corresponding to a reference sound; and a wireless communication section for converting a result of the computation acquired from the parameter computing section into a wireless signal and transmitting the wireless signal to the outside, wherein the sound collecting unit stores an identification code for identification of itself, and the wireless communication section includes the identification code of itself in the wireless signal and transmits the wireless signal including the identification code to the outside; and a computation display unit including a receiving section for receiving the wireless signal transmitted from the sound collecting unit and converting the wireless signal into the computation result; a computing section for converting the computation result acquired from the receiving section into a control signal for display; and a display section for acquiring the control signal and displaying information concerning the amount of difference computed by the parameter computing section, wherein the computation display unit stores the identification code of the sound collecting unit in advance, and the computing section determines the sound collecting unit that transmitted the wireless signal by comparing the identification code included in the wireless signal and the stored identification code.