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    Acoustic signal transmission with insertion signal for machine control
    2.
    发明授权
    Acoustic signal transmission with insertion signal for machine control 失效
    声信号传输带插入信号进行机器控制

    公开(公告)号：US06947893B1

    公开(公告)日：2005-09-20

    申请号：US09712945

    申请日：2000-11-16

    申请人： Satoshi Iwaki ,  Akira Nakayama ,  Tamotsu Machino ,  Ikuo Kitagishi ,  Yukihiro Nakamura

    发明人： Satoshi Iwaki ,  Akira Nakayama ,  Tamotsu Machino ,  Ikuo Kitagishi ,  Yukihiro Nakamura

    IPC分类号： G01C21/00 ,  G01C21/36 ,  G10L13/00 ,  G10L19/00 ,  H04H1/00 ,  H04H20/31 ,  H04H20/34 ,  H04H20/93

    CPC分类号： G01C21/3629 ,  G10L19/018 ,  H04H20/31 ,  H04H20/34 ,  H04H20/93 ,  H04H2201/50

    摘要： The acoustic signal transmission includes electrically synthesizing an audible sound signal and an insertion signal to generate a synthesized sound electrical signal at the sending side, transmitting the synthesized sound electrical signal, and extracting the insertion signal form the synthesized sound electrical signal at the receiving side. The extracted signal may be used for controlling machines or for transmitting information. The acoustic signal represented by the synthesized sound electrical signal can be heard by human ears in the same way as the audible sound signal, while the synthesized insertion signal cannot be detected by human ears. The synthesized sound electrical signal can be transmitted as a sound wave in air space, as electrical signals through a transmission line or as radio signals such as infrared and electromagnetic waves. The synthesized sounds may also be transported or distributed by recording on recording media such as compact disc and DVD.

    摘要翻译： 声信号传输包括电合成可听声音信号和插入信号，以在发送侧产生合成声音电信号，发送合成声音电信号，并从接收侧的合成声音电信号中提取插入信号。 提取的信号可以用于控制机器或用于发送信息。 由合成声音信号表示的声学信号可以以与可听见的声音信号相同的方式被人耳听到，而合成的插入信号不能被人耳探测。 合成的声音电信号可以作为空气中的声波传输，作为电信号通过传输线或作为诸如红外线和电磁波的无线电信号传输。 合成的声音也可以通过在诸如光盘和DVD的记录介质上记录来传送或分发。

    Method and system for undersampled symbol synchronization
    3.
    发明申请
    Method and system for undersampled symbol synchronization 审中-公开
    欠采样符号同步的方法和系统

    公开(公告)号：US20050180538A1

    公开(公告)日：2005-08-18

    申请号：US11108925

    申请日：2005-04-18

    申请人： Lawrence Karr

    发明人： Lawrence Karr

    IPC分类号： H04H20/34 ,  H04H20/72 ,  H04H40/27 ,  H04H60/92 ,  H04J3/06 ,  H04L7/04 ,  H04L7/06 ,  H04B1/66

    CPC分类号： H04L7/041 ,  H04H20/34 ,  H04H20/72 ,  H04H40/27 ,  H04H60/92 ,  H04L7/043 ,  H04L7/06

    摘要： Described is a system and method for providing a synchronization pattern in a communication system. The method includes generating a synchronization pattern with good randomness properties; packing a signal for transmission with m headers, each header consisting of the synchronization pattern 1/m symbol-time shifted from the previous header; and transmitting the signal. A further method provides for the sampling the transmitted signal with m headers of symbol-time shifted synchronization patterns; and determining symbol timing offset by computing and reordering correlation peaks from the synchronization patterns. A system includes a transmitting system, a receiving system, and a data channel. The transmitted signal includes m headers with 1/m symbol-time shifted synchronization patterns. The receiving system undersamples the transmitted signal with m synchronization patterns to simulate an oversampled synchronization pattern.

    摘要翻译： 描述了一种用于在通信系统中提供同步模式的系统和方法。 该方法包括产生具有良好随机性的同步模式; 打包一个用于传送m个报头的信号，每个报头由从前一报头移位的符号时间同步模式1 / m组成; 并发送信号。 另一种方法提供用符号时间偏移同步模式的m个头部对发射信号进行采样; 以及通过从所述同步模式计算和重新排序相关峰来确定符号定时偏移。 系统包括发射系统，接收系统和数据信道。 发送信号包括具有1 / m符号时间偏移同步模式的m个报头。 接收系统对m个同步模式的发射信号进行了下采样，以模拟过采样同步模式。

    Revenue generating method of broadcasting on FM subcarrier
    6.
    发明授权
    Revenue generating method of broadcasting on FM subcarrier 失效
    FM副载波广播收益生成方法

    公开(公告)号：US06915107B1

    公开(公告)日：2005-07-05

    申请号：US10064274

    申请日：2002-06-27

    申请人： Dennis W. Lusk

    发明人： Dennis W. Lusk

    IPC分类号： H04H9/00 ,  H04H20/34 ,  H04H20/55 ,  H04H60/31 ,  H04H60/63 ,  H04H7/00

    CPC分类号： H04H20/34 ,  H04H20/16 ,  H04H20/55 ,  H04H60/31 ,  H04H60/63

    摘要： A method of generating advertising revenue by securing an FM subcarrier frequency through an FM broadcasting station and distributing portable receivers to end users tailored to play the audio signals broadcast over the FM subcarrier frequency, on demand. Public service audio clips and advertising audio clips are broadcast to the portable receivers with the intention that a listener will be exposed to both the public service audio clip and the advertising audio clip during the period of the broadcast. The public service audio clips and advertising audio clips are broadcast in a continuous loop and are coded with start and stop signals to indicate the beginning and end of the broadcast. Through this method, an individual requesting the broadcast will hear a signal loop of the audio, starting with the detection of the start signal and ending when the detection of the stop signal.

    摘要翻译： 一种通过FM广播电台确保FM副载波频率并将便携式接收机分配给终端用户的方法，该终端用户可根据需要在FM子载波频率上播放音频信号。 公共服务音频剪辑和广告音频剪辑被广播到便携式接收机，意图是在广播期间听众将暴露于公共服务音频剪辑和广告音频剪辑。 公共服务音频剪辑和广告音频剪辑以连续的循环广播，并用启动和停止信号进行编码，以指示广播的开始和结束。 通过这种方法，请求广播的个人将听到音频的信号循环，从起始信号的检测开始，并且当检测到停止信号时结束。

    Reduced power consumption
    7.
    发明申请
    Reduced power consumption 有权
    降低功耗

    公开(公告)号：US20050100116A1

    公开(公告)日：2005-05-12

    申请号：US10691313

    申请日：2003-10-22

    申请人： Ken Mason

    发明人： Ken Mason

    IPC分类号： H04B1/16 ,  H04H20/34 ,  H04H40/18 ,  H04B1/18

    CPC分类号： H04H40/18 ,  H04H20/34 ,  H04H20/426 ,  H04H2201/13 ,  H04W52/0216 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/126

    摘要： A radio frequency receiver for receiving supplementary data transmitted with a radio station signal, said supplementary data comprising one or more information word fields containing supplementary data transmitted with the radio station signal, said receiver comprising: a host processor for processing said supplementary data; a supplementary data demodulator and decoder for demodulating and decoding a received radio signal to generate a stream of bits representing one or more information word fields; a information word type memory for storing one or more information word type fields; detection circuitry arranged to receive and compare the information word type field decoded by the supplementary data decoder with one or more information word type fields stored in the information word type memory, and to provide a matched condition signal in response to a match between one or more decoded information word type fields and one or more of said corresponding stored information word types fields, and wherein the receiver is arranged to, in response to the matched condition signal, cause the corresponding supplementary data to be processed by means of the host processor.

    摘要翻译： 一种用于接收用无线电台信号发送的补充数据的射频接收机，所述补充数据包括一个或多个包含用无线电台信号发送的补充数据的信息字段，所述接收机包括：主处理器，用于处理所述补充数据; 补充数据解调器和解码器，用于解调和解码所接收的无线电信号以产生表示一个或多个信息字段的比特流; 用于存储一个或多个信息字类型字段的信息字类型存储器; 检测电路，被布置为接收并比较由辅助数据解码器解码的信息字类型字段与存储在信息字型存储器中的一个或多个信息字类型字段，并且响应于一个或多个 解码的信息字类型字段和所述对应的所存储的信息字类型字段中的一个或多个，并且其中所述接收器被布置为响应于所述匹配条件信号，使得通过所述主机处理器来处理相应的补充数据。

    Receiver system for decoding data embedded in an electromagnetic signal
    8.
    发明申请
    Receiver system for decoding data embedded in an electromagnetic signal 有权
    用于解码嵌入电磁信号中的数据的接收机系统

    公开(公告)号：US20050037721A1

    公开(公告)日：2005-02-17

    申请号：US10841236

    申请日：2004-05-07

    申请人： Christoph Benz ,  Andreas Korner ,  Stefan Gierl

    发明人： Christoph Benz ,  Andreas Korner ,  Stefan Gierl

    IPC分类号： H03J1/00 ,  H03J7/18 ,  H04B1/16 ,  H04H20/34 ,  H04H20/55 ,  H04H40/09 ,  H04B1/18

    CPC分类号： H04H40/09 ,  H03J1/0083 ,  H03J7/186 ,  H04H20/34 ,  H04H20/55 ,  H04H2201/13 ,  H04H2201/60

    摘要： A system for decoding data, such as travel and traffic information, configured in data blocks embedded in an electromagnetic signal, such as a broadcasted radio signal, has been developed. The system includes a method and receiver for decoding the data with a background tuner in a manner that does not impair the ability of the background tuner to demodulate other signals. While a main tuner is tuned to demodulate a first electromagnetic signal to produce a data stream, the background tuner is switched to decode the data blocks only when the data blocks are expected to be received. In the remaining time, the background tuner is free to demodulate other signals to support a diversity or other function. If a data block is not received, or not received when expected, the background tuner returns to demodulating one or more other frequencies after a predetermined time interval has elapsed.

    摘要翻译： 已经开发了用于解码嵌入在诸如广播无线电信号的电磁信号中的数据块中的诸如旅行和交通信息之类的数据的系统。 该系统包括用于以不损害背景调谐器解调其他信号的能力的方式用背景调谐器对数据进行解码的方法和接收器。 当主调谐器被调谐以解调第一电磁信号以产生数据流时，仅当期望接收数据块时，才将背景调谐器切换到对数据块进行解码。 在剩余时间内，背景调谐器可以自由地解调其他信号，以支持多样性或其他功能。 如果未预期数据块被接收或未被接收，则在经过预定时间间隔之后，背景调谐器返回到解调一个或多个其它频率。

    Block spectrum receiver for a broadband communications system
    9.
    发明授权
    Block spectrum receiver for a broadband communications system 失效
    用于宽带通信系统的频谱接收机

    公开(公告)号：US5930231A

    公开(公告)日：1999-07-27

    申请号：US625399

    申请日：1996-03-27

    申请人： Kevin L. Miller ,  Ramin Borazjani

    发明人： Kevin L. Miller ,  Ramin Borazjani

    IPC分类号： H04N7/10 ,  H04B1/26 ,  H04H20/34 ,  H04H20/42 ,  H04H20/79 ,  H04H20/80 ,  H04H40/27 ,  H04H60/97 ,  H04J11/00 ,  H04L5/02 ,  H04L5/14 ,  H04L7/02 ,  H04L12/28 ,  H04M3/00 ,  H04M7/00 ,  H04M7/12 ,  H04M9/02 ,  H04N7/173 ,  H04J1/00 ,  H04J3/16

    CPC分类号： H04H20/80 ,  H04H20/34 ,  H04H20/42 ,  H04H20/79 ,  H04H40/27 ,  H04H60/97 ,  H04L12/2801 ,  H04L5/023 ,  H04L5/143 ,  H04M7/006 ,  H04N7/10 ,  H04N7/17309 ,  H04L7/0062 ,  H04M7/12 ,  H04M9/027

    摘要： A communication system for coupling telephony or other signals to a broadband network such as a CATV network. The system transmits a multiplex of telephony signals in the forward band of the broadband network, with individual signals directed to an addressed subscriber. Telephony signals returning from subscribers upstream to a headend unit (HIU) are modulated onto the reverse band of the broadband network in a frequency division multiple access (FDMA) arrangement. The upstream modulated telephony signals are received at a telephony network interface at the HIU coupled to the broadband network. A group of reverse band modulated telephony signals are received at a group receiver or channelizer. The group receiver processes all upstream telephony signals within a selected spectral subband in the reverse band to apply a receiver matched filter with a weighted overlap and add circuit, and are then converted to baseband by an FFT circuit. The group receiver provides a serial data stream representing the baseband telephony signals. The baseband telephony signals are processed to derive demodulated telephony signals. The demodulated telephony signals are coupled to the telephony network.

    摘要翻译： 用于将电话或其他信号耦合到诸如CATV网络的宽带网络的通信系统。 该系统在宽带网络的前向频带中发送电话信号的复用，其中各个信号被定向到寻址的用户。 从用户上游返回到前端单元（HIU）的电话信号在频分多址（FDMA）布置中被调制到宽带网络的反向频带上。 在耦合到宽带网络的HIU处的电话网络接口处接收上行调制电话信号。 一组反向频带调制电话信号在组接收机或信道发送器处被接收。 组接收机处理反向频带内所选择的频谱子带内的所有上行电话信号，以将具有加权重叠和相加电路的接收机匹配滤波器应用于FFT电路。 组接收器提供表示基带电话信号的串行数据流。 处理基带电话信号以导出解调的电话信号。 解调的电话信号耦合到电话网络。

    Method and system for providing synchronization in a stream of messages and a transmitter and a receiver for use in such a system
    10.
    发明授权
    Method and system for providing synchronization in a stream of messages and a transmitter and a receiver for use in such a system 失效
    用于在消息流中提供同步的方法和系统以及用于这种系统的发射机和接收机

    公开(公告)号：US5903617A

    公开(公告)日：1999-05-11

    申请号：US873257

    申请日：1997-06-11

    申请人： Theodor I.E. Kamalski

    发明人： Theodor I.E. Kamalski

    IPC分类号： H04B1/16 ,  H04H20/26 ,  H04H20/34 ,  H04H20/55 ,  H04J3/00 ,  H04J3/06 ,  H04L7/00 ,  H04L27/00

    CPC分类号： H04H60/06 ,  H04H20/26 ,  H04H20/34 ,  H04H20/55 ,  H04H2201/13

    摘要： A method and a system for providing synchronization in a stream of messages. In such a method and system, the stream of messages is arranged in fictitious sequences of messages, in which messages of a predetermined type may only occupy a certain number of locations within a sequence. In this way, the messages of the predetermined type are concentrated in a part of the sequence, which allows a receiver to use the time during which the remaining part of the sequence is transmitted for other purposes, such as scanning of the reception band, etc.

    摘要翻译： 一种用于在消息流中提供同步的方法和系统。 在这种方法和系统中，消息流被布置成虚构的消息序列，其中预定类型的消息可以仅占用序列内的一定数量的位置。 以这种方式，预定类型的消息集中在序列的一部分中，这允许接收机使用发送序列的剩余部分用于其他目的的时间，例如接收频带的扫描等 。