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1.发明申请TRANSMISSION OF A DATA STREAM USING OFDM SYMBOLS AT TWO CARRIER FREQUENCIES HAVING OVERLAPPING SUPERFRAMES OF A COMMENSURABLE TIME DURATION 有权使用OFDM符号传输数据流在具有可重复的时间延迟的重叠超帧的两个载波频率公开(公告)号：US20090141697A1
公开(公告)日：2009-06-04
申请号：US12067480
申请日：2006-08-10
Applicant: Frank Hofmann
Inventor： Frank Hofmann
IPC: H04J3/00
CPC classification number: H04H20/18 , H04H20/22 , H04H20/26 , H04H2201/12
Abstract: In a method for transmitting a data stream in a digital transmission system, the data stream is transmitted in a transmitted signal using successive OFDM symbols; a number of OFDM symbols are combined in a transmission frame; a number of transmission frames are transmitted in one transmission superframe; each transmission superframe has an information block having one or more OFDM symbols in an established position of the transmission superframe; a first transmitted signal having a first data stream in a first carrier frequency range and a second transmitted signal having a second data stream having the same information content as the first data stream are transmitted in a second carrier frequency range; and the time duration of the transmission superframes of the first transmitted signal is an integer multiple of the time duration of the transmission superframes of the second transmitted signal.
Abstract translation: 在数字传输系统中发送数据流的方法中，使用连续的OFDM符号以发射信号发送数据流; 在传输帧中组合多个OFDM符号; 在一个传输超帧中发送多个传输帧; 每个传输超帧具有在传输超帧的建立位置中具有一个或多个OFDM符号的信息块; 在第二载波频率范围内发送具有第一载波频率范围的第一数据流的第一发送信号和具有与第一数据流相同的信息内容的第二数据流的第二发送信号; 并且第一发送信号的发送超帧的持续时间是第二发送信号的发送超帧的持续时间的整数倍。
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公开(公告)号：US07170950B2
公开(公告)日：2007-01-30
申请号：US10191190
申请日：2002-07-09
Applicant: Jens Wildhagen , Dietmar Schill
Inventor： Jens Wildhagen , Dietmar Schill
IPC: H03C1/52
CPC classification number: H04H60/07 , H03C1/60 , H04H20/36 , H04H2201/12 , H04H2201/20
Abstract: An AM simulcast broadcast signal combining a digital transmission signal and an analogue transmission signal in one transmission channel. The digital transmission signal is modulated to one sideband of a carrier of the transmission channel and a correcting signal (C) is modulated to the other sideband of the carrier of the transmission channel, which correcting signal (C) is determined so that the envelope demodulation of the transmission channel represents the analogue transmission signal.
Abstract translation: 在一个传输信道中组合数字传输信号和模拟传输信号的AM同播广播信号。 数字传输信号被调制到传输信道的载波的一个边带，并且校正信号（C）被调制到传输信道的载波的另一个边带，该校正信号（C）被确定为使得包络解调 的传输信道表示模拟传输信号。
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3.发明授权Method and apparatus for implementing signal quality metrics and antenna diversity switching control 有权用于实现信号质量度量和天线分集切换控制的方法和装置公开(公告)号：US09544039B2
公开(公告)日：2017-01-10
申请号：US14920684
申请日：2015-10-22
Applicant: iBiquity Digital Corporation
Inventor： Brian W. Kroeger , Paul J. Peyla
CPC classification number: H04B7/0814 , H04B7/02 , H04B7/0805 , H04B17/29 , H04B17/309 , H04H2201/12 , H04H2201/18 , H04H2201/19 , H04H2201/20 , H04L1/20 , H04L27/2663 , H04L27/2678
Abstract: A method for detecting the digital quality of a radio signal includes: receiving a radio signal including an analog modulated portion; digitally sampling an analog modulated portion of the radio signal to produce a plurality of samples; using a ratio between an average magnitude and an RMS magnitude of a block of the samples to compute an analog signal quality metric. Receivers that implement the method are also provided.
Abstract translation: 用于检测无线电信号的数字质量的方法包括：接收包括模拟调制部分的无线电信号; 对无线电信号的模拟调制部分进行数字采样以产生多个采样; 使用样本块的平均幅度和RMS幅度之间的比率来计算模拟信号质量度量。 还提供了实现该方法的接收器。
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4.发明授权Transmission of a data stream using OFDM symbols at two carrier frequencies having overlapping superframes of a commensurable time duration 有权在具有可重复持续时间的重叠超帧的两个载波频率下使用OFDM符号传输数据流公开(公告)号：US08018830B2
公开(公告)日：2011-09-13
申请号：US12067480
申请日：2006-08-10
Applicant: Frank Hofmann
Inventor： Frank Hofmann
CPC classification number: H04H20/18 , H04H20/22 , H04H20/26 , H04H2201/12
Abstract: In a method for transmitting a data stream in a digital transmission system, the data stream is transmitted in a transmitted signal using successive OFDM symbols; a number of OFDM symbols are combined in a transmission frame; a number of transmission frames are transmitted in one transmission superframe; each transmission superframe has an information block having one or more OFDM symbols in an established position of the transmission superframe; a first transmitted signal having a first data stream in a first carrier frequency range and a second transmitted signal having a second data stream having the same information content as the first data stream are transmitted in a second carrier frequency range; and the time duration of the transmission superframes of the first transmitted signal is an integer multiple of the time duration of the transmission superframes of the second transmitted signal.
Abstract translation: 在数字传输系统中发送数据流的方法中，使用连续的OFDM符号以发射信号发送数据流; 在传输帧中组合多个OFDM符号; 在一个传输超帧中发送多个传输帧; 每个传输超帧具有在传输超帧的建立位置中具有一个或多个OFDM符号的信息块; 在第二载波频率范围内发送具有第一载波频率范围的第一数据流的第一发送信号和具有与第一数据流相同的信息内容的第二数据流的第二发送信号; 并且第一发送信号的发送超帧的持续时间是第二发送信号的发送超帧的持续时间的整数倍。
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5.发明申请Electronic Device, System, Chip and Method Enabling a Radio Signal Reception 审中-公开启用无线电信号接收的电子设备，系统，芯片和方法公开(公告)号：US20090209217A1
公开(公告)日：2009-08-20
申请号：US12083576
申请日：2005-10-14
Applicant: Edmund Coersmeier , Martin Kosakowski , Stefan Mende , Yuhuan Xu , Thomas Hinzmann , Jesper Hartig Larsen
Inventor： Edmund Coersmeier , Martin Kosakowski , Stefan Mende , Yuhuan Xu , Thomas Hinzmann , Jesper Hartig Larsen
IPC: H03D5/00
CPC classification number: H04M1/6058 , H04B1/3805 , H04H2201/12
Abstract: The invention relates to an electronic device comprising a headset connector adapted to connect a headset to the electronic device and an active amplifier circuit connected to the headset connector. The active amplifier circuit is adapted to amplify radio signals received by an antenna, which is connected to the electronic device via the headset connector. The invention relates equally to a chip comprising such an active amplifier circuit, to a system comprising the electronic device and to a corresponding method for receiving radio signals at such an electronic device.
Abstract translation: 本发明涉及一种电子设备，包括适于将头戴式耳机连接到电子设备的头戴式耳机连接器以及连接到耳机连接器的主动放大器电路。 有源放大器电路适于放大由天线接收的无线电信号，天线通过耳机连接器连接到电子设备。 本发明同样涉及一种包括这种有源放大器电路的芯片，涉及一种包括电子设备的系统以及用于在这种电子设备处接收无线电信号的相应方法。
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Patent Agency Ranking
公开(公告)号：US20040043730A1
公开(公告)日：2004-03-04
申请号：US10456334
申请日：2003-06-05
Inventor： Dietmar Schill , Jens Wildhagen
IPC: H04B001/00
CPC classification number: H04L1/22 , H04B7/08 , H04H20/26 , H04H2201/12 , H04H2201/186 , H04H2201/20 , H04L1/02 , H04L27/0008
Abstract: A receiver and a method for receiving a digital signal and an analogue signal is described, whereby both signals transmit the same audio program. In dependence of the reception situation, the receiver switches or slides from said digital signal to said analogue signal and back. Each time the receiver switches between the digital signal, which has an audio bandwidth of about 12 kHz, and the analogue signal, which has an audio bandwidth of only 4.5 kHz, the sound of the received audio output signal changes from a rich sound to a rather flat sound, or vice versa. To avoid this, the audio bandwidth of the digital signal is reduced in dependence of the reception situation. In case of frequent occurrence of switching, or in case of a bad reception of the digital signal, the bandwidth of the digital signal is reduced.
Abstract translation: 描述了用于接收数字信号和模拟信号的接收机和方法，由此两个信号发送相同的音频节目。 根据接收情况，接收机从所述数字信号切换或滑动到所述模拟信号并返回。 每次接收机在具有约12kHz的音频带宽的数字信号与具有仅4.5kHz的音频带宽的模拟信号之间切换时，接收的音频输出信号的声音从丰富的声音变为 相当平坦的声音，反之亦然。 为了避免这种情况，数字信号的音频带宽根据接收情况而减少。 在频繁发生切换的情况下，或者在数字信号接收不良的情况下，数字信号的带宽减小。
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公开(公告)号：US11700161B2
公开(公告)日：2023-07-11
申请号：US16582892
申请日：2019-09-25
Applicant: Nautel Limited
Inventor： Philipp Schmid , Brian Walker
CPC classification number: H04L27/2621 , H01L33/005 , H01L33/486 , H01L33/60 , H01L33/62 , H01L33/642 , H04H20/00 , H04L27/2623 , H04H2201/12 , H04H2201/183 , H04L27/2624
Abstract: A system for peak-to-average-power ratio (PAPR) reduction of a frequency shifted plurality of digital broadcast signals taking into account the combined signal peaks in order to transmit the signals more efficiently in a single broadcast transmission system. The PAPR algorithm takes into account a rotating constellation phase offset for the shifted signals corresponding to the amount of applied frequency shift. In the case of a dual sideband In-Band-On-Channel (IBOC) signal typically used in conjunction with an FM carrier in the center, the sidebands can be interleaved to create a new IBOC signal definition and take the place of the FM carrier for an all-digital transmission that is backward compatible with IBOC receivers allowing for a gradual migration to all digital broadcasting.
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公开(公告)号：US20180123853A1
公开(公告)日：2018-05-03
申请号：US15565329
申请日：2016-04-08
Applicant: Nautel Limited
Inventor： Philipp Schmid , Brian Walker
CPC classification number: H04L27/2621 , H04H20/00 , H04H2201/12 , H04H2201/183 , H04L27/2623 , H04L27/2624
Abstract: A system for peak-to-average-power ratio (PAPR) reduction of a frequency shifted plurality of digital broadcast signals taking into account the combined signal peaks in order to transmit the signals more efficiently in a single broadcast transmission system. The PAPR algorithm takes into account a rotating constellation phase offset for the shifted signals corresponding to the amount of applied frequency shift. In the case of a dual sideband In-Band-On-Channel (IBOC) signal typically used in conjunction with an FM carrier in the center, the sidebands can be interleaved to create a new IBOC signal definition and take the place of the FM carrier for an all-digital transmission that is backward compatible with IBOC receivers allowing for a gradual migration to all digital broadcasting.
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9.发明授权公开(公告)号：US09020559B2
公开(公告)日：2015-04-28
申请号：US13376142
申请日：2010-08-03
Applicant: Carsten Lehr , Detlev Nyenhuis , Marcus Risse
Inventor： Carsten Lehr , Detlev Nyenhuis , Marcus Risse
CPC classification number: H04B1/0064 , H04H40/27 , H04H2201/11 , H04H2201/12 , H04H2201/20
Abstract: A method for direct sampling of a plurality of radio bands, including a step of receiving a first radio band via a first interface and at least one additional radio band via at least one additional interface, the first radio band and the at least one additional radio band each being associated with different frequency ranges, and the first radio band or the at least one additional radio band being a DAB band. Furthermore, a selection signal is received via an interface, the selection signal indicating whether further processing of the first radio band and/or the at least one additional radio band takes place. Depending on the selection signal, the first radio band is sampled at a common sampling frequency and/or the at least one additional radio band is sampled at the common sampling frequency.
Abstract translation: 一种用于直接采样多个无线频带的方法，包括经由第一接口和至少一个附加无线电频带经由至少一个附加接口接收第一无线频带的步骤，所述第一无线电频带和所述至少一个附加无线电 频带各自与不同的频率范围相关联，并且第一无线电频带或至少一个附加无线电频段是DAB频带。 此外，经由接口接收选择信号，所述选择信号指示是否发生第一无线电频带和/或至少一个附加无线电频带的进一步处理。 根据选择信号，以公共采样频率对第一无线电频带进行采样和/或以公共采样频率对至少一个附加无线频带进行采样。
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10.发明申请Radio Broadcasting Method and Transmitter Using Pre-Filtering and Corresponding Signal 有权无线电广播方式和发射机使用预滤波和相应信号公开(公告)号：US20070291865A1
公开(公告)日：2007-12-20
申请号：US10558055
申请日：2004-05-25
Applicant: Marc Lanoiselee , Pierrick Louin
Inventor： Marc Lanoiselee , Pierrick Louin
IPC: H04H1/00
CPC classification number: H04H20/46 , H04H20/22 , H04H2201/12 , H04H2201/186 , H04L27/2601
Abstract: The disclosure relates to a radio broadcasting method for a first multicarrier digital signal occupying a first frequency band adjacent to at least one second frequency band, each assigned to a second signal. Pre-filtering is applied to the said first signal before its emission so as to attenuate the power of the said first signal in at least a first portion of the said first frequency band, adjacent to the said second frequency band(s).
Abstract translation: 本公开涉及占用与至少一个第二频带相邻的第一频带的第一多载波数字信号的无线电广播方法，每个第二频带分配给第二信号。 在其发射之前对所述第一信号进行预滤波，以便在与所述第二频带相邻的所述第一频带的至少第一部分中衰减所述第一信号的功率。
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