Portable electronic apparatus and its line traffic control accomplishing method

Abstract

The invention discloses a portable electronic device and a wire-control method. The portable electronic device includes an earphone socket, a CPU and an interruption detecting module. During the wire-control process through a wire-control earphone, the CPU records the time from the press-down to release of the wire-control earphone key-press, compares the time length with the preset threshold to judge and record the type of the key-press corresponding to the time length, and performs corresponding functions according to the recorded type of key-press for one-time operation or the combination of key-press types for many times of operation. With the simple wire-control earphone provided by the invention, various control functions can be performed to the portable electronic device.

Description

technical field [0001] The invention relates to a wire control technology of a portable electronic device, in particular to a portable electronic device and a wire control realization method thereof. Background technique [0002] The popularity of portable electronic products brings great convenience to users' lives. Ease of use and a good man-machine communication interface are important indicators for evaluating the quality of portable products. [0003] In the prior art, wire control of the earphone is generally implemented through a dedicated serial interface, such as an inter-integrated circuit bus (I2C), or multi-line common key scanning. [0004] In the Chinese patent application with the application number 02117856.9 submitted by the applicant on May 23, 2002, a connection circuit between a wire-controlled earphone and a portable electronic device body through a dedicated serial interface is disclosed. See figure 1 As shown, it includes: buttons S1, S2, S3 and S4, ...

AI Technical Summary

Problems solved by technology

The disadvantage of these solutions is that a dedicated hardware interface and a dedicated headphone cable are required

In addition, it is necessary to increase the microprocessor (MPU) circuit to realize the earphone wire control function through the serial interface, which will increase the power consumption and cost, and at least 4 more wires than the ordinary four-segment ear wire (I2C communication interface) , power and digital ground)

The method of button scanning adds a lot of communication lines, resulting in thicker earphone lines.

Both approaches affect aesthetics and ease of use, and add cost

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