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Patent Agency Ranking
公开(公告)号：US20160196825A1
公开(公告)日：2016-07-07
申请号：US14859342
申请日：2015-09-20
Applicant: Jinghong Chen
Inventor： Jinghong Chen , Xiangning Chen , Jingzhun Feng
IPC: G10L19/005 , G10L19/008 , G10L19/06 , G10L19/022
CPC classification number: H04B11/00
Abstract: It discloses an acoustic channel-based data communications method which performs channel coding on an original data signal using a CRC coding method and a BCH coding method to obtain a coded sequence; modulates the coded sequence using a preset audio sequence symbol set via a symbol mapping method to obtain a digital audio signal; selects a channel frequency band according to characteristics of a transmitting equipment and interference between frequency bands; and converts the digital audio signal into an analog audio signal through a digital-to-analog converter and transmits the signal to a channel for transmission according to the selected channel frequency band.
Abstract translation: 它公开了一种基于声道的数据通信方法，其使用CRC编码方法和BCH编码方法对原始数据信号进行信道编码以获得编码序列; 使用经由符号映射方法设置的预设音频序列符号来调制编码序列以获得数字音频信号; 根据发射设备的特性和频带之间的干扰选择信道频带; 并通过数模转换器将数字音频信号转换为模拟音频信号，并根据所选择的频道频带将信号发送到用于传输的信道。
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公开(公告)号：US09054935B1
公开(公告)日：2015-06-09
申请号：US14599573
申请日：2015-01-19
Applicant: Jinghong Chen
Inventor： Jinghong Chen , Xiangning Chen , Jingzhun Feng
CPC classification number: H04L27/2666 , H04B11/00 , H04L27/2602 , H04L27/2634 , H04L27/265 , H04L27/2655 , H04L27/2656 , H04L27/2662 , H04L27/2675
Abstract: Disclosed is an orthogonal frequency division multiplexing (OFDM)-based acoustic communications system. At an acoustic transmitting end, original data is modulated through channel coding into an acoustic signal of a data frame formed by multiple OFDM symbols and the acoustic signal is transmitted through a loudspeaker; at an acoustic receiving end, after a microphone receives the acoustic signal, and the acoustic signal is restored to the original data through demodulation and channel decoding. In a communication process, symbol synchronization is implemented through pilot information, and data frame synchronization is implemented in a manner of inserting baker codes, thereby simplifying processing, having a low bit error rate, improving acoustic communication efficiency, promoting development of acoustic communication, and having a good application prospect.
Abstract translation: 公开了一种基于正交频分复用（OFDM）的声学通信系统。 在声发射端，将原始数据通过信道编码调制成由多个OFDM符号形成的数据帧的声信号，声信号通过扬声器传输; 在声音接收端，在麦克风接收到声信号之后，通过解调和信道解码将声信号恢复到原始数据。 在通信过程中，通过导频信息实现符号同步，并且以插入面包代码的方式实现数据帧同步，从而简化具有低误码率的处理，提高声通信效率，促进声通信的发展，以及 具有良好的应用前景。
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公开(公告)号：US10020896B2
公开(公告)日：2018-07-10
申请号：US15871246
申请日：2018-01-15
Applicant: Jinghong Chen
Inventor： Jinghong Chen , Xiangning Chen , Jingzhun Feng
CPC classification number: H04B11/00
Abstract: It discloses an acoustic channel-based data communications method which performs channel coding on an original data signal using a CRC coding method and a BCH coding method to obtain a coded sequence; modulates the coded sequence using a preset audio sequence symbol set via a symbol mapping method to obtain a digital audio signal; selects a channel frequency band according to characteristics of a transmitting equipment and interference between frequency bands; and converts the digital audio signal into an analog audio signal through a digital-to-analog converter and transmits the signal to a channel for transmission according to the selected channel frequency band.
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公开(公告)号：US09941978B2
公开(公告)日：2018-04-10
申请号：US14859342
申请日：2015-09-20
Applicant: Jinghong Chen
Inventor： Jinghong Chen , Xiangning Chen , Jingzhun Feng
CPC classification number: H04B11/00
Abstract: It discloses an acoustic channel-based data communications method which performs channel coding on an original data signal using a CRC coding method and a BCH coding method to obtain a coded sequence; modulates the coded sequence using a preset audio sequence symbol set via a symbol mapping method to obtain a digital audio signal; selects a channel frequency band according to characteristics of a transmitting equipment and interference between frequency bands; and converts the digital audio signal into an analog audio signal through a digital-to-analog converter and transmits the signal to a channel for transmission according to the selected channel frequency band.
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公开(公告)号：US20150139343A1
公开(公告)日：2015-05-21
申请号：US14599573
申请日：2015-01-19
Applicant: Jinghong Chen
Inventor： Jinghong Chen , Xiangning Chen , Jingzhun Feng
IPC: H04L27/26
CPC classification number: H04L27/2666 , H04B11/00 , H04L27/2602 , H04L27/2634 , H04L27/265 , H04L27/2655 , H04L27/2656 , H04L27/2662 , H04L27/2675
Abstract: Disclosed is an orthogonal frequency division multiplexing (OFDM)-based acoustic communications system. At an acoustic transmitting end, original data is modulated through channel coding into an acoustic signal of a data frame formed by multiple OFDM symbols and the acoustic signal is transmitted through a loudspeaker; at an acoustic receiving end, after a microphone receives the acoustic signal, and the acoustic signal is restored to the original data through demodulation and channel decoding. In a communication process, symbol synchronization is implemented through pilot information, and data frame synchronization is implemented in a manner of inserting baker codes, thereby simplifying processing, having a low bit error rate, improving acoustic communication efficiency, promoting development of acoustic communication, and having a good application prospect.
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