公开(公告)号：US20130257728A1

公开(公告)日：2013-10-03

申请号：US13586907

申请日：2012-08-16

Applicant: Kung-Wang LEE ,  Chih-Chang CHIEN ,  Cheng-Chiang LIU ,  Chia-Sheng HSU ,  Chih-Hsiang YANG

Inventor： Kung-Wang LEE ,  Chih-Chang CHIEN ,  Cheng-Chiang LIU ,  Chia-Sheng HSU ,  Chih-Hsiang YANG

IPC: G06F3/033

CPC classification number: G06F3/033 ,  G06F3/038 ,  G06F2203/0382

Abstract: A multiplexed audio cable joystick includes plural keys, a key scanner, a frame format encoder, a transmission modulator, and a DAC. The key scanner is connected to the keys for scanning states of the keys to output pressed key information, The frame format encoder is connected to the key scanner for generating a frame transmission data according to the pressed key information. The transmission modulator is connected to the frame format encoder for performing a carrier modulation on the frame transmission data to generate a modulated transmission data. The DAC is connected to the transmission modulator for converting the modulated transmission data into an analog audio data. The transmission modulator has the same frequency band as an audio signal spectrum, and the frequency band has plural sub-bands, such that the transmission modulator modulates the frame transmission data into one of the sub-bands for transmitting data in multiplexing.

Abstract translation: 复用的音频电缆操纵杆包括多个键，键扫描器，帧格式编码器，传输调制器和DAC。 键扫描器连接到用于扫描键的状态的键以输出按下的键信息。帧格式编码器连接到按键扫描器，用于根据所按的键信息生成帧传输数据。 传输调制器连接到帧格式编码器，用于对帧传输数据执行载波调制，以产生调制的传输数据。 DAC连接到传输调制器，用于将调制的传输数据转换为模拟音频数据。 传输调制器具有与音频信号频谱相同的频带，并且频带具有多个子带，使得传输调制器将帧传输数据调制为用于在复用中传输数据的子带之一。