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1.发明公开SINGLE AND MULTIPLE SINEWAVE MODULATION AND DEMODULATION TECHNIQUES, APPARATUS, AND COMMUNICATIONS SYSTEMS 审中-公开调制和解调，设备和通讯系统中，单个和多个正弦波
公开(公告)号：EP1792457A2
公开(公告)日：2007-06-06
申请号：EP05737765.7
申请日：2005-04-12
发明人： BROWN, Forrest, J. , KUNZEL, Ronald, E. , POWNALL, Charles, V. , LOAR, David, W. , D'ALESSANDRO, Kenneth
IPC分类号： H04L27/00
CPC分类号： H04L27/00 , H04L27/2602
摘要： A method for generating a substantially sinusoidal waveform containing encoded digital data having one of a first value and a second value at selected phase angles θn comprises generating the waveform having an amplitude Y defined by a first function at phase angles lying outside of regions having a range Δθ beginning at each phase angle θn, said first function being Y = sinθ; generating the waveform having an amplitude Y defined by the first functional phase angles lying inside the regions having a range of Δθ beginning at each phase angle θn where data of the first value is to be encoded; and generating the waveform having an amplitude Y defined by a second function at phase angles lying inside the regions having a range of Δθ associated with each phase angle θn where data of the second value is to be encoded, the second function being different from Y=sinθ.
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2.发明公开SINGLE AND MULTIPLE SINEWAVE MODULATION AND DEMODULATION TECHNIQUES EMPLOYING CARRIER-ZERO AND CARRIER-PEAK DATA-WORD START AND STOP 审中-公开单个和多个SINUSWELLENMODULATIONS-和-DEMODULATIONSTECHNIKEN与运营NULL和运营商TOP数据字启动和停止
公开(公告)号：EP1757054A2
公开(公告)日：2007-02-28
申请号：EP05745614.7
申请日：2005-04-14
发明人： BROWN, Forrest, J. , KUNZEL, Ronald, E. , POWNALL, Charles, V. , LOAR, David, W. , D'ALESSANDRO, Kenneth
CPC分类号： H04L27/24 , H03J1/005 , H04L27/02 , H04L27/2602
摘要： A method for detecting encoded digital data from a substantially sinusoidal waveform (10), the encoded digital data having one of a first value and a second value at selected phase angles θn comprises generating the waveform having an amplitude Y defined by a first function at phase angles lying outside of regions having a range Δθ beginning at each phase angle θn, said first function being Y = sinθ; generating the waveform having an amplitude Y defined by the first function at phase angles lying inside the regions having a range of Δθ beginning at each phase angle θn where data of the first value is to be encoded; and generating the waveform having an amplitude Y defined by a second function at phase angles lying inside the regions having a range of Δθ associated with each phase angle θn where data of the second value is to be encoded, the second function being different from Y = sinθ, the detection including deriving sync pulses (16) from minima and maxima of the substantially sinusoidal waveform (10) to frame data words.
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3.发明公开COAXIAL CABLE COMMUNICATIONS SYSTEMS AND APPARATUS EMPLOYING SINGLE AND MULTIPLE SINEWAVE MODULATION AND DEMODULATION TECHNIQUES 审中-公开同轴电缆的通信系统的设备和具有单次和多次SINUSWELLENMODULATIONS-和-DEMODULATIONSTECHNIKEN
公开(公告)号：EP1751940A2
公开(公告)日：2007-02-14
申请号：EP05756582.2
申请日：2005-04-13
发明人： BROWN, Forrest, J. , KUNZEL, Ronald, E. , POWNALL, Charles, V. , LOAR, David, W. , D'ALESSANDRO, Kenneth
IPC分类号： H04L27/00
CPC分类号： H04L27/24 , H04L27/2602
摘要： A method for generating a substantially sinusoidal waveform containing encoded digital data having one of a first value and a second value at selected phase angles θn comprises generating the waveform having an amplitude Y defined by a first function at phase angles lying outside of regions having a range Δθ beginning at each phase angle θn, said first function being Y=sinθ; generating the waveform having an amplitude Y defined by the first function at phase angles lying inside the regions having a range of Δθ beginning at each phase angle θn where data of the first value is to be encoded; and generating the waveform having an amplitude Y defined by a second function at phase angles lying inside the regions having a range of Δθ associated with each phase angle θn where data of the second value is to be encoded, the second function being different from Y=sinθ.
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