| 摘要 |
Disclosed are a method and an apparatus for supplying electric power to an active noise cancellation earphone using a power supply of an electronic device. The method for supplying electric power to an active noise cancellation earphone using a power supply of an electronic device comprises: supplying the electric power to a noise cancellation circuit and related circuits of the active noise cancellation earphone through a microphone pin, a left sound track pin, a right sound track pin in an earphone socket. The apparatus for supplying electric power to the active noise cancellation earphone using the power supply of the electronic device comprises: the active noise cancellation earphone; and the electronic device. The active noise cancellation earphone includes a detection/control module A and a switch module A, wherein the detection/control module A is connected to an earphone plug, and both the sound cancellation circuit and a hands-free microphone circuit are connected to the earphone plug through the switch module A. The electronic device includes a detection/control module B and a switch module B, wherein the detection/control module B is connected to the earphone socket, and both an audio module and a power module are connected to the earphone socket through the switch module B. According to the present invention, the active noise cancellation earphone receives power directly from the electronic device. Therefore, the earphone is simple in terms of a structure, easy to be carried, highly compatible, appropriate for mass production, and can be manufactured at low costs. |
