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1.发明授权Demodulation of amplitude information in differentially modulated OFDM signals 有权差分调制的OFDM信号中幅度信息的解调
公开(公告)号：EP1705853B1
公开(公告)日：2017-05-10
申请号：EP06075585.7
申请日：2006-03-10
Applicant: Delphi Technologies, Inc.
Inventor： Dibiaso, Eric A. , Hiatt, Michael L., Jr. , Walker, Glenn A.
CPC classification number: H04L27/3488 , H04L27/2647 , H04L27/38
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2.发明公开Method to increase performance of secondary data in a hierachical modulation scheme 有权一种用于在分层调制方法增加次要数据的性能的方法
公开(公告)号：EP1536574A2
公开(公告)日：2005-06-01
申请号：EP04078193.2
申请日：2004-11-23
Applicant: Delphi Technologies, Inc.
Inventor： Walker, Glenn A. , Dibiaso, Eric A. , Hiatt, Michael L., Jr.
IPC: H04B7/185
CPC classification number: H04L27/3466 , H04B7/18513 , H04L27/3488
Abstract: The present invention provides a receiver (216, 217, 340) for use in a SDAR system (210), the receiver including a receiving unit including a satellite signal detection means (342, 343) for detecting a first transmit signal transmitted from a first communication satellite (212, 214) and a second transmit signal transmitted from a second communication satellite (212, 214), the first transmit signal produced when the transmitter modulates a primary data stream (302) with a secondary data stream (304) on a first carrier wave associated with the first communication satellite and the second transmit signal produced when the transmitter modulates the primary and secondary data streams on a second carrier wave associated with the second communication satellite; and at least one demodulator (344) coupled to the receiving unit and configured to demodulate the first transmit signal.
Abstract translation: 本发明提供一种用于接收器（216，217，340）在一SDAR系统（210），所述接收器包括：接收单元，包括卫星信号检测装置（342，343），用于从第一检测第一发射信号反mitted 通信卫星（212，214）和从第二通信卫星（212，214）的第二发射信号反mitted，所产生的第一发射信号。当发送器调制对一个辅助数据流（304）的主数据流（302） 与所述第一通信卫星和产生当发射机调制在与所述第二通信卫星相关联的第二载波的主要和次要数据流的第二发射信号相关联的第一载波; 和至少一个解调器（344）耦合到所述接收单元和被配置为解调第一传输信号。
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3.发明公开
公开(公告)号：EP1705853A2
公开(公告)日：2006-09-27
申请号：EP06075585.7
申请日：2006-03-10
Applicant: Delphi Technologies, Inc.
Inventor： Dibiaso, Eric A. , Hiatt, Michael L., Jr. , Walker, Glenn A.
CPC classification number: H04L27/3488 , H04L27/2647 , H04L27/38
Abstract: Where the additional data throughput is added using an amplitude offset or a combination of phase and amplitude offset, the legacy differential demodulator (602) does not recover the amplitude information. The present invention provides a method for demodulating amplitude offsets in a differential modulation system in order to recover the amplitude information. The amplitude information may be used to demodulate the additional Level 2 data transmitted as an amplitude offset or combination phase and amplitude offset across adjacent OFDM symbols and/or adjacent frequency subcamers (612).
Abstract translation: 在使用幅度偏移或相位和幅度偏移的组合来附加附加数据吞吐量的情况下，传统差分解调器（602）不恢复幅度信息。 本发明提供了一种用于解调差分调制系统中的幅度偏移的方法，以便恢复振幅信息。 振幅信息可以用于解调作为相邻OFDM符号和/或相邻频率子像素（612）之间的幅度偏移或组合相位和幅度偏移发送的附加级2数据。
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Patent Agency Ranking4.发明公开Method to demodulate amplitude offsets in a differential modulation system 有权与差分调制系统解调方法Amplitudenversätzen
公开(公告)号：EP1705853A3
公开(公告)日：2012-04-25
申请号：EP06075585.7
申请日：2006-03-10
Applicant: Delphi Technologies, Inc.
Inventor： Dibiaso, Eric A. , Hiatt, Michael L., Jr. , Walker, Glenn A.
CPC classification number: H04L27/3488 , H04L27/2647 , H04L27/38
Abstract: Where the additional data throughput is added using an amplitude offset or a combination of phase and amplitude offset, the legacy differential demodulator (602) does not recover the amplitude information. The present invention provides a method for demodulating amplitude offsets in a differential modulation system in order to recover the amplitude information. The amplitude information may be used to demodulate the additional Level 2 data transmitted as an amplitude offset or combination phase and amplitude offset across adjacent OFDM symbols and/or adjacent frequency subcamers (612).
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5.发明授权Method to increase performance of secondary data in a hierachical modulation scheme 有权一种用于在分层调制方法增加次要数据的性能的方法
公开(公告)号：EP1536574B1
公开(公告)日：2010-07-07
申请号：EP04078193.2
申请日：2004-11-23
Applicant: Delphi Technologies, Inc.
Inventor： Walker, Glenn A. , Dibiaso, Eric A. , Hiatt, Michael L., Jr.
CPC classification number: H04L27/3466 , H04B7/18513 , H04L27/3488
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6.发明公开Method to increase performance of secondary data in a hierachical modulation scheme 有权一种用于在分层调制方法增加次要数据的性能的方法
公开(公告)号：EP1536574A3
公开(公告)日：2008-01-23
申请号：EP04078193.2
申请日：2004-11-23
Applicant: Delphi Technologies, Inc.
Inventor： Walker, Glenn A. , Dibiaso, Eric A. , Hiatt, Michael L., Jr.
CPC classification number: H04L27/3466 , H04B7/18513 , H04L27/3488
Abstract: The present invention provides a receiver (216, 217, 340) for use in a SDAR system (210), the receiver including a receiving unit including a satellite signal detection means (342, 343) for detecting a first transmit signal transmitted from a first communication satellite (212, 214) and a second transmit signal transmitted from a second communication satellite (212, 214), the first transmit signal produced when the transmitter modulates a primary data stream (302) with a secondary data stream (304) on a first carrier wave associated with the first communication satellite and the second transmit signal produced when the transmitter modulates the primary and secondary data streams on a second carrier wave associated with the second communication satellite; and at least one demodulator (344) coupled to the receiving unit and configured to demodulate the first transmit signal.
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公开(公告)号：EP1783978A3
公开(公告)日：2007-09-05
申请号：EP06076931.2
申请日：2006-10-24
Applicant: Delphi Technologies, Inc.
Inventor： Hiatt, Michael L., Jr. , Dibiaso, Eric A. , Walker, Glenn A.
IPC: H04L27/34
CPC classification number: H04L27/3488 , H04L27/183
Abstract: A technique (800) for demodulating secondary data from a hierarchically modulated signal includes a number of steps. A gray coded eight phase shift key (8-PSK) hierarchically modulated signal is received (802) that includes primary data and secondary data. An imaginary portion of the signal is determined (804) and a real portion of the signal is determined (806). An absolute value of the real portion of the signal may then be subtracted from an absolute value of the imaginary portion of the signal to provide the secondary data (808). The gray coded 8-PSK hierarchically modulated signal may be a uniform gray coded 8-PSK hierarchically modulated signal or a non-uniform gray coded 8-PSK hierarchically modulated signal.
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公开(公告)号：EP1783978A2
公开(公告)日：2007-05-09
申请号：EP06076931.2
申请日：2006-10-24
Applicant: Delphi Technologies, Inc.
Inventor： Hiatt, Michael L., Jr. , Dibiaso, Eric A. , Walker, Glenn A.
IPC: H04L27/34
CPC classification number: H04L27/3488 , H04L27/183
Abstract: A technique (800) for demodulating secondary data from a hierarchically modulated signal includes a number of steps. A gray coded eight phase shift key (8-PSK) hierarchically modulated signal is received (802) that includes primary data and secondary data. An imaginary portion of the signal is determined (804) and a real portion of the signal is determined (806). An absolute value of the real portion of the signal may then be subtracted from an absolute value of the imaginary portion of the signal to provide the secondary data (808). The gray coded 8-PSK hierarchically modulated signal may be a uniform gray coded 8-PSK hierarchically modulated signal or a non-uniform gray coded 8-PSK hierarchically modulated signal.
Abstract translation: 用于从分级调制信号解调次级数据的技术（800）包括多个步骤。 接收包括主要数据和次要数据的灰色编码的八相移键控（8-PSK）分级调制信号（802）。 确定信号的虚部（804）并确定信号的实部（806）。 然后可以从信号的虚部的绝对值中减去信号的实部的绝对值以提供次数据（808）。 格雷码8-PSK分层调制信号可以是均匀格雷码8-PSK分层调制信号或非均匀灰度编码8-PSK分层调制信号。
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