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公开(公告)号：US06389059B1
公开(公告)日：2002-05-14
申请号：US09275067
申请日：1999-03-23
IPC分类号： H04K100
CPC分类号： H04J13/00 , G10L19/012 , H04B1/005 , H04B1/0057 , H04B1/006 , H04B1/406 , H04B1/69 , H04B1/707 , H04B7/2618 , H04B7/2634 , H04B2201/7071 , H04L1/0002 , H04L27/12 , H04W36/18 , H04W52/04 , H04W52/08 , H04W52/362 , H04W52/367 , H04W52/40 , H04W88/06
摘要： A technique for spread-spectrum communication which uses more than one mode and more than one frequency band. Selectable modes include narrowband mode and spread-spectrum mode, or cellular mode and microcellular mode. Selectable frequency bands include both licensed and unlicensed frequency bands, particularly frequency bands including the 902-928 MHz, 1850-1990 MHz, and 2.4-2.4835 GHz frequency bands. Spread-spectrum communication channels are 10 MHz or less in width. The frequency band onto which spread-spectrum signals are encoded may be changed upon a change in environment or other control trigger, such as establishment or de-establishment of communication with a private access network.
摘要翻译： 一种使用多于一种模式和多于一个频带的扩频通信技术。 可选择的模式包括窄带模式和扩频模式，或蜂窝模式和微蜂窝模式。 可选择的频段包括许可和非授权频段，特别是包括902-928 MHz，1850-1990 MHz和2.4-2.4835 GHz频段的频段。 扩频通信信道宽度为10 MHz或更小。 对扩频信号进行编码的频带可以在环境或其他控制触发的变化（诸如与专用接入网的建立或取消建立通信）之后改变。
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公开(公告)号：US6118824A
公开(公告)日：2000-09-12
申请号：US63639
申请日：1998-04-20
IPC分类号： H04B7/26 , H04H20/31 , H04H20/42 , H04H20/74 , H04H60/07 , H04H60/90 , H04H60/91 , H04J13/00 , H04W4/06 , H04W4/18 , H04W48/10 , H04W48/12 , H04L12/18 , H04B1/38 , H04L27/00 , H04L29/06
CPC分类号： H04W72/005 , H04B7/2637 , H04H20/42 , H04H60/07 , H04H60/90 , H04W4/06 , H04W48/12 , H04H20/31 , H04H20/74 , H04H60/91 , H04W4/18 , H04W48/10
摘要： A system for publishing data on shared broadcast channels using spread-spectrum techniques, which may comprise a spread-spectrum encoder capable of receiving data and placing it in a spread-spectrum signal format and a transmitter operating on a shared communication channel or frequency band, such as might be allocated to terrestrial point-to-point or broadcast communications. The shared communication channel may comprise a cellular system, in which data may be transmitted using spread-spectrum techniques using the transmitters and repeaters of the cellular system simultaneously with voice and other transmissions associated with the cellular system. A subscriber station may be capable of receiving using a plurality of different communication channels or frequency bands, such as a first receiver capable of cellular reception and a second receiver capable of satellite reception, at least one of which uses spread-spectrum techniques. The subscriber station may also comprise a transmitter using at least one communication channel or frequency band, so that the subscriber station may receive data or other transmissions using one channel and may request further data or other transmissions using a second channel.
摘要翻译： 一种用于使用扩频技术发布共享广播信道上的数据的系统，其可以包括能够接收数据并将其放置在扩频信号格式中的扩频编码器和在共享通信信道或频带上操作的发射机， 例如可能被分配给地面点对点或广播通信。 共享通信信道可以包括蜂窝系统，其中可以使用与蜂窝系统相关联的语音和其他传输的蜂窝系统的发射机和中继器的扩频技术来发射数据。 订户站可以能够使用多个不同的通信信道或频带来接收，例如能够进行蜂窝接收的第一接收机和能够进行卫星接收的第二接收机，其中至少一个使用扩频技术。 订户站还可以包括使用至少一个通信信道或频带的发射机，使得用户台可以使用一个信道接收数据或其他传输，并且可以使用第二信道请求进一步的数据或其他传输。
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公开(公告)号：US5815525A
公开(公告)日：1998-09-29
申请号：US622812
申请日：1996-03-27
CPC分类号： H04B1/0057 , H04B1/005 , H04B1/006 , H04B1/406 , H04B1/69 , H04B1/707 , H04B7/2634 , H04L1/0001 , H04B2201/7071 , H04L1/0002
摘要： A technique for spread-spectrum communication which uses more than one mode and more than one frequency band. Selectable modes include narrowband mode and spread-spectrum mode, or cellular mode and microcellular mode. Selectable frequency bands include both licensed and unlicensed frequency bands, particularly frequency bands including the 902-928 MHz, 1850-1990 MHz, and 2.4-2.4835 GHz frequency bands. Spread-spectrum communication channels are 10 MHz or less in width. The frequency band onto which spread-spectrum signals are encoded may be changed upon a change in environment or other control trigger, such as establishment or de-establishment of communication with a private access network.
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公开(公告)号：US5694414A
公开(公告)日：1997-12-02
申请号：US482292
申请日：1995-06-07
IPC分类号： G10L19/00 , H04B1/40 , H04B1/69 , H04B1/707 , H04B7/005 , H04B7/26 , H04J11/00 , H04J13/02 , H04L1/00 , H04L12/56 , H04L27/12 , H04W36/18 , H04W52/00 , H04W52/04 , H04W52/08 , H04W52/36 , H04W52/40 , H04W88/06 , H04K1/00
CPC分类号： H04B1/69 , G10L19/012 , H04B1/005 , H04B1/0057 , H04B1/006 , H04B1/406 , H04B1/707 , H04B7/2618 , H04B7/2634 , H04J13/00 , H04L27/12 , H04W52/04 , H04W52/08 , H04W52/362 , H04W52/367 , H04W52/40 , H04B2201/7071 , H04L1/0002 , H04W36/18 , H04W88/06
摘要： A technique for spread-spectrum communication which uses more than one mode and more than one frequency band. Selectable modes include narrowband mode and spread-spectrum mode, or cellular mode and microcellular mode. Selectable frequency bands include both licensed and unlicensed frequency bands, particularly frequency bands including the 902-928 MHz, 1850-1990 MHz, and 2.4-2.4835 GHz frequency bands. Spread-spectrum communication channels are 10 MHz or less in width. The frequency band onto which spread-spectrum signals are encoded may be changed upon a change in environment or other control trigger, such as establishment or de-establishment of communication with a private access network. A multi-band transmitter comprises a single frequency synthesizer and a frequency source (e.g., a local oscillator), coupled to a selectable band pass filter. A multi-band receiver capable of monitoring one or more frequency bands comprises bank of bandpass filters and a demodulator comprising a single frequency synthesizer and a frequency source.
摘要翻译： 一种使用多于一种模式和多于一个频带的扩频通信技术。 可选择的模式包括窄带模式和扩频模式，或蜂窝模式和微蜂窝模式。 可选择的频段包括许可和非授权频段，特别是包括902-928 MHz，1850-1990 MHz和2.4-2.4835 GHz频段的频段。 扩频通信信道宽度为10 MHz或更小。 对扩频信号进行编码的频带可以在环境或其他控制触发的变化（诸如与专用接入网的建立或取消建立通信）之后改变。 多频带发射机包括耦合到可选择带通滤波器的单个频率合成器和频率源（例如本地振荡器）。 能够监视一个或多个频带的多频带接收机包括一组带通滤波器和一个包括单个频率合成器和频率源的解调器。
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公开(公告)号：US5887020A
公开(公告)日：1999-03-23
申请号：US293671
申请日：1994-08-18
IPC分类号： G10L19/00 , H04B1/40 , H04B1/69 , H04B1/707 , H04B7/005 , H04B7/26 , H04J11/00 , H04J13/02 , H04L1/00 , H04L12/56 , H04L27/12 , H04W36/18 , H04W52/00 , H04W52/04 , H04W52/08 , H04W52/36 , H04W52/40 , H04W88/06 , H04K1/00
CPC分类号： H04J13/00 , G10L19/012 , H04B1/005 , H04B1/0057 , H04B1/006 , H04B1/406 , H04B1/69 , H04B1/707 , H04B7/2618 , H04B7/2634 , H04L27/12 , H04W52/04 , H04W52/08 , H04W52/362 , H04W52/367 , H04W52/40 , H04B2201/7071 , H04L1/0002 , H04W36/18 , H04W88/06
摘要： A technique for spread-spectrum communication which uses more than one mode and more than one frequency band. Selectable modes include narrowband mode and spread-spectrum mode, or cellular mode and microcellular mode. Selectable frequency bands include both licensed and unlicensed frequency bands, particularly frequency bands including the 902-928 MHz, 1850-1990 MHz, and 2.4-2.4835 GHz frequency bands. Spread-spectrum communication channels are 10 MHz or less in width. The frequency band onto which spread-spectrum signals are encoded may be changed upon a change in environment or other control trigger, such as establishment or de-establishment of communication with a private access network.
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公开(公告)号：US5796772A
公开(公告)日：1998-08-18
申请号：US485987
申请日：1995-06-07
IPC分类号： G10L19/00 , H04B1/40 , H04B1/69 , H04B1/707 , H04B7/005 , H04B7/26 , H04J11/00 , H04J13/02 , H04L1/00 , H04L12/56 , H04L27/12 , H04W36/18 , H04W52/00 , H04W52/04 , H04W52/08 , H04W52/36 , H04W52/40 , H04W88/06 , H04K1/00 , H04L5/16 , H04L27/00
CPC分类号： H04W52/367 , G10L19/012 , H04B1/005 , H04B1/0057 , H04B1/006 , H04B1/406 , H04B1/69 , H04B1/707 , H04B7/2618 , H04B7/2634 , H04J13/00 , H04L27/12 , H04W52/04 , H04W52/08 , H04W52/362 , H04W52/40 , H04B2201/7071 , H04L1/0002 , H04W36/18 , H04W52/38 , H04W88/06
摘要： A technique for spread-spectrum communication which uses more than one mode and more than one frequency band. Selectable modes include narrowband mode and spread-spectrum mode, or cellular mode and microcellular mode. Selectable frequency bands include both licensed and unlicensed frequency bands, particularly frequency bands including the 902-928 MHz, 1850-1990 MHz, and 2.4-2.4835 GHz frequency bands. Spread-spectrum communication channels are 10 MHz or less in width. The frequency band onto which spread-spectrum signals are encoded may be changed upon a change in environment or other control trigger, such as establishment or de-establishment of communication with a private access network. A multi-band transmitter comprises a single frequency synthesizer and a frequency source (e.g., a local oscillator), coupled to a selectable band pass filter. A multi-band receiver capable of monitoring one or more frequency bands comprises bank of bandpass filters and a demodulator comprising a single frequency synthesizer and a frequency source.
摘要翻译： 一种使用多于一种模式和多于一个频带的扩频通信技术。 可选择的模式包括窄带模式和扩频模式，或蜂窝模式和微蜂窝模式。 可选择的频段包括许可和非授权频段，特别是包括902-928 MHz，1850-1990 MHz和2.4-2.4835 GHz频段的频段。 扩频通信信道宽度为10 MHz或更小。 对扩频信号进行编码的频带可以在环境或其他控制触发的变化（诸如与专用接入网的建立或取消建立通信）之后改变。 多频带发射机包括耦合到可选择带通滤波器的单个频率合成器和频率源（例如本地振荡器）。 能够监视一个或多个频带的多频带接收机包括一组带通滤波器和一个包括单个频率合成器和频率源的解调器。
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公开(公告)号：US5790587A
公开(公告)日：1998-08-04
申请号：US483514
申请日：1995-06-07
IPC分类号： G10L19/00 , H04B1/40 , H04B1/69 , H04B1/707 , H04B7/005 , H04B7/26 , H04J11/00 , H04J13/02 , H04L1/00 , H04L12/56 , H04L27/12 , H04W36/18 , H04W52/00 , H04W52/04 , H04W52/08 , H04W52/36 , H04W52/40 , H04W88/06 , H04K1/00 , H04L27/26
CPC分类号： H04B7/2634 , G10L19/012 , H04B1/005 , H04B1/0057 , H04B1/006 , H04B1/406 , H04B1/69 , H04B1/707 , H04B7/2618 , H04J13/00 , H04L27/12 , H04W52/04 , H04W52/08 , H04W52/362 , H04W52/367 , H04W52/40 , H04B2201/7071 , H04L1/0002 , H04W36/18 , H04W88/06
摘要： A technique for spread-spectrum communication which uses more than one mode and more than one frequency band. Selectable modes include narrowband mode and spread-spectrum mode, or cellular mode and microcellular mode. Selectable frequency bands include both licensed and unlicensed frequency bands, particularly frequency bands including the 902-928 MHz, 1850-1990 MHz, and 2.4-2.4835 GHz frequency bands. Spread-spectrum communication channels are 10 MHz or less in width. The frequency band onto which spread-spectrum signals are encoded may be changed upon a change in environment or other control trigger, such as establishment or de-establishment of communication with a private access network. A multi-band transmitter comprises a single frequency synthesizer and a frequency source (e.g., a local oscillator), coupled to a selectable band pass filter. A multi-band receiver capable of monitoring one or more frequency bands comprises bank of bandpass filters and a demodulator comprising a single frequency synthesizer and a frequency source.
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公开(公告)号：US5499265A
公开(公告)日：1996-03-12
申请号：US216084
申请日：1994-03-21
摘要： An apparatus for decoding a received spread spectrum signal having a data signal modulated with a pseudo-noise code and transmitted as an RF spread spectrum signal. A first reference register holds a first pseudo-noise signal, a second reference register holds a second pseudo-noise signal, and a receive-register holds a received spread spectrum signal. A first modulo adder adds each chip of the received spread spectrum signal with each respective chip of the first pseudo-noise signal, thereby generating a first plurality of chip-comparison signals. A first summer adds the first plurality of chip-comparison signals, generating a first correlation signal. The comparator compares the correlation signal to an upper-threshold level and a lower-threshold level, and respectively generates a first data-symbol signal or a second data-symbol signal.
摘要翻译： 一种用于对接收到的扩展频谱信号进行解码的装置，该扩展频谱信号具有用伪噪声码调制并作为RF扩频信号发射的数据信号。 第一参考寄存器保存第一伪噪声信号，第二参考寄存器保存第二伪噪声信号，并且接收寄存器保持接收的扩频信号。 第一模加法器将接收到的扩频信号的每个码片与第一伪噪声信号的每个相应码片相加，由此产生第一多个码片比较信号。 第一夏季添加第一多个码片比较信号，产生第一相关信号。 比较器将相关信号与上阈值电平和下阈值电平进行比较，分别产生第一数据符号信号或第二数据符号信号。
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公开(公告)号：US5455822A
公开(公告)日：1995-10-03
申请号：US161187
申请日：1993-12-03
CPC分类号： H04B7/2628
摘要： A method for establishing communications between a master unit and a plurality of node units. Of the plurality of node units, K node units are assumed to have established communications with a master unit. A first (K+1) node unit of the plurality of node units, desires to establish communications with the master unit. The method includes transmitting from the master unit, a base-station spread spectrum signal having a common signalling chip code, transmitting from the first node unit a second spread spectrum signal with a first identification code using the common-signalling chip code, transmitting from the master unit a third spread spectrum signal with a master unit identification code, using the common-signalling chip code. The method further includes generating at the first node unit using the master unit identification signal, a master unit chip code for transmitting spread spectrum signals to the master unit. Additionally, the method includes generating, at the master unit using the first identification code, a first node unit chip code for transmitting spread spectrum signals to the first node unit.
摘要翻译： 一种用于在主单元和多个节点单元之间建立通信的方法。 在多个节点单元中，假定K个节点单元已建立与主单元的通信。 多个节点单元中的第一（K + 1）个节点单元希望建立与主单元的通信。 该方法包括从主单元发送具有公共信令芯片码的基站扩频信号，使用公共信令码片码从第一节点单元发送具有第一识别码的第二扩频信号，从 主单元具有主单元识别码的第三扩频信号，使用公共信号芯片码。 该方法还包括使用主单元识别信号在第一节点单元处生成用于向主单元发射扩频信号的主单元芯片码。 此外，该方法包括在主单元处使用第一识别码生成用于将扩频信号发送到第一节点单元的第一节点单元码片码。
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公开(公告)号：US5737324A
公开(公告)日：1998-04-07
申请号：US767152
申请日：1996-12-16
CPC分类号： H04B7/2628
摘要： A method for establishing communications between a master unit and a plurality of node units. Of the plurality of node units, K node units are assumed to have established communications with a master unit. A first (K+1) node unit of the plurality of node units, desires to establish communications with the master unit. The method includes transmitting from the master unit, a base-station spread spectrum signal having a common signalling chip code, transmitting from the first node unit a second spread spectrum signal with a first identification code using the common-signalling chip code, transmitting from the master unit a third spread spectrum signal with a master unit identification code, using the common-signalling chip code. The method further includes generating at the first node unit using the master unit identification signal, a master unit chip code for transmitting spread spectrum signals to the master unit. Additionally, the method includes generating, at the master unit using the first identification code, a first node unit chip code for transmitting spread spectrum signals to the first node unit.
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