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公开(公告)号:US5668831A
公开(公告)日:1997-09-16
申请号:US481107
申请日:1995-06-07
申请人: Anthony Peter J. Claydon , Charles D. MacFarlane , Richard J. Gammack , Anthony Mark Jones , William P. Robbins , Mark Barnes
发明人: Anthony Peter J. Claydon , Charles D. MacFarlane , Richard J. Gammack , Anthony Mark Jones , William P. Robbins , Mark Barnes
IPC分类号: H04N7/26 , H03H17/02 , H03H21/00 , H03K5/24 , H03M3/02 , H03M13/00 , H03M13/15 , H03M13/27 , H04B3/06 , H04L1/00 , H04L7/00 , H04L7/033 , H04L7/04 , H04L25/03 , H04L25/06 , H04L27/00 , H04L27/02 , H04L27/06 , H04L27/227 , H04L27/38 , H04N5/00 , H04N5/21 , H04N5/44 , H04N5/455 , H04N5/52 , H04N7/24 , H04N7/30 , H04N21/2383 , H04N21/438 , H03H7/30
CPC分类号: H04L1/0057 , H03K5/24 , H03M13/15 , H03M13/151 , H03M13/2707 , H03M13/2764 , H04L1/0045 , H04L1/0071 , H04L25/03038 , H04L25/03866 , H04L25/062 , H04L27/02 , H04L27/2273 , H04L27/3809 , H04N5/211 , H04N5/4401 , H04N5/4446 , H04N5/455 , H04N5/52 , H04L2027/0032 , H04L2027/0061 , H04L2027/0067 , H04L2027/0073 , H04L2027/0081 , H04L7/0334
摘要: An integrated digital communication system utilizing multilevel vestigial sideband transmission is provided. The communication system receives a multi-level pulse-amplitude modulated digital signal from a limited bandwidth channel. The system includes processing stages which demodulate, sample and filter the incoming signal prior to recovery of the digital data. Other stages recover the timing and lock on to the frequency and phase of the transmitted signal, as well as provide for automatic gain control. An adaptive equalizer, error correction circuitry, and an output interface recover the digital data and provide for transfer to other devices.
摘要翻译: 提供了利用多电平残留边带传输的集成数字通信系统。 通信系统从有限带宽信道接收多电平脉冲幅度调制数字信号。 该系统包括在恢复数字数据之前对输入信号进行解调,采样和滤波的处理阶段。 其他级恢复定时并锁定到发射信号的频率和相位,并提供自动增益控制。 自适应均衡器,纠错电路和输出接口恢复数字数据并提供传输到其他设备。
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公开(公告)号:US5910960A
公开(公告)日:1999-06-08
申请号:US480721
申请日:1995-06-07
申请人: Anthony Peter J. Claydon , Charles D. MacFarlane , Richard J. Gammack , Anthony Mark Jones , William P. Robbins , Mark Barnes
发明人: Anthony Peter J. Claydon , Charles D. MacFarlane , Richard J. Gammack , Anthony Mark Jones , William P. Robbins , Mark Barnes
CPC分类号: H04L1/0057 , H03K5/24 , H03M13/15 , H03M13/151 , H04L1/0045 , H04L25/03038 , H04L25/03866 , H04L25/062 , H04L27/02 , H04N21/4382 , H04N5/4446 , H04N5/4401
摘要: A CMOS Reed-Solomon decoding circuit calculates syndromes, executes a Berlekamp algorithm, performs a Chien Search, and corrects a delayed version of the received data according to a calculated magnitude of error. The circuit is optimized in terms of chip territory and circuit complexity. Signals are provided to indicate uncorrectable packet errors and other transmission errors.
摘要翻译: CMOS Reed-Solomon解码电路计算校正子,执行Berlekamp算法,执行Chien搜索,并根据计算的误差大小校正接收数据的延迟版本。 该电路在芯片领域和电路复杂性方面进行了优化。 提供信号以指示不可纠正的分组错误和其他传输错误。
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