发明名称 Increased digital bandwidth carried on an analog signal cycle using a data structure
摘要 A communication system is disclosed that encodes multiple bits of digital data on a single analog signal cycle. The communication system includes a digital data encoding system that receives the multiple bits of digital data and looks up the digital data in a Digital-to-Analog (D/A) conversion table. The D/A conversion table correlates the multiple bits of digital data to amplitudes of an analog signal and yields amplitudes values. The digital data encoding system then generates the analog signal cycle based on the amplitude values. The digital data encoding system advantageously increases the bandwidth available to customers, which is particularly important to help solve "last mile" bandwidth problems. The communication system also includes a digital data decoding system on the receiver side that decodes the multiple bits of digital data from the analog signal cycle using an Analog-to-Digital (A/D) conversion table.
申请公布号 US6917654(B1) 申请公布日期 2005.07.12
申请号 US20010840428 申请日期 2001.04.23
申请人 SPRINT COMMUNICATIONS COMPANY L.P. 发明人 CERDA, JR. SALVADOR
分类号 H03M1/74;H04L27/00;H04L27/24;(IPC1-7):H04L27/00 主分类号 H03M1/74
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