发明名称 |
WIRELESS DEVICE AND METHOD IN THE WIRELESS DEVICE |
摘要 |
A transmitter comprises an analog-to-digital converter, an audio signal compressor, a framer, a scrambler, a modulator, and a transmitting unit. The analog-to-digital converter translates an analog audio signal into a digital Pulse-Code Modulation (PCM) format audio signal. The audio signal compressor compresses the PCM format audio signal into a coded bit stream with a modified Adaptive differential Pulse-code Modulation (ADPCM) algorithm. The framer packetizes the coded bit stream into a 1.125 ms frame data by adding a preamble, a signaling field, a data field, and a cyclic redundancy check field to the coded bit stream. The scrambler scrambles the frame data with an ID number. The modulator generates a modulated signal by modulating the scrambled frame data with a predetermined modulation scheme. The transmitting unit transmits the modulated signal. |
申请公布号 |
US2016358613(A1) |
申请公布日期 |
2016.12.08 |
申请号 |
US201514746851 |
申请日期 |
2015.06.23 |
申请人 |
Beken Corporation |
发明人 |
Wang Weifeng;Huang Yiming |
分类号 |
G10L19/00;G10H1/36;G10L21/055 |
主分类号 |
G10L19/00 |
代理机构 |
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代理人 |
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主权项 |
1. A transmitter, comprising:
an analog-to-digital converter configured to translate an analog audio signal into a digital Pulse-Code Modulation (PCM) format audio signal; an audio signal compressor configured to compress the PCM format audio signal into a coded bit stream with a modified Adaptive differential Pulse-code Modulation (ADPCM) algorithm; a framer configured to packetize the coded bit stream into a 1.125 ms frame data by adding a preamble, a signaling field, a data field, and a cyclic redundancy check field to the coded bit stream; a scrambler configured to scramble the frame data with an ID number; a modulator configured to generate a modulated signal by modulating the scrambled frame data with a predetermined modulation scheme; and a transmitting unit configured to transmit the modulated signal. |
地址 |
Shanghai CN |