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公开(公告)号：US4677686A
公开(公告)日：1987-06-30
申请号：US503321
申请日：1983-06-10
申请人： Charles H. Hustig , Jeffrey L. Ward
发明人： Charles H. Hustig , Jeffrey L. Ward
CPC分类号： H04L12/2801 , H04H60/80 , H04H60/97 , H04L5/02
摘要： A communications system which enables enhanced services to be provided over cable TV systems. The design of the system is such that amplification is not required. Therefore, two-way transmission is possible on the low band of "two-way capable" cable systems and intermediate power failures do not affect transmission.Transmission of data takes place in the low band frequency range of five to thirty megahertz. The system design is such that it can withstand over a hundred dB loss between the remote terminal and the head-end. Carrier frequencies, when received, are interleaved for purposes of decoding and microprocessor based controls are used for automatic gain control and error correction.In a preferred embodiment of the invention, two thousand five hundred carriers, each transmitting eight digital data channels of information can be simultaneously transmitted from remote terminals without any effect whatsoever on the TV signals being transmitted at the high band frequencies. The resulting system is a very economical and dependable method to achieve passive transmission of data over cable TV systems.
摘要翻译： 一种通过有线电视系统提供增强业务的通信系统。 该系统的设计使得不需要放大。 因此，“双向”电缆系统的低频带可以进行双向传输，中间电源故障不影响传输。 数据的传输发生在五到三十兆赫兹的低频范围内。 系统设计使得它能承受远程终端和前端之间的一百dB以上的损耗。 载波频率在接收时被交织用于解码，基于微处理器的控制用于自动增益控制和纠错。 在本发明的一个优选实施例中，每个发送八个数字数字信息信道的两千五百个载波可以从远程终端同时发送，而不会对在高频带频率上传输的电视信号产生任何影响。 所得到的系统是通过有线电视系统实现无源数据传输的非常经济和可靠的方法。
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公开(公告)号：US4672605A
公开(公告)日：1987-06-09
申请号：US591509
申请日：1984-03-20
CPC分类号： H04L1/0071 , H03M5/12 , H04B1/69 , H04L1/004 , H04M11/062 , Y02B60/36
摘要： A high speed and relatively error free communications system is disclosed which enables the high speed transmission of data at a 19.2 kilobit per second rate. The data is transmitted over the same communications medium as voice transmissions, the data transmission being virtually imperceptible to the user of the analog telephone system. Connection to and from the data terminals is made through an RS232C interface. A spread spectrum technique is utilized which "whitens" the signals of the data terminal regardless of whether the terminal is idle, transmitting or receiving data. Virtual error free transmission is achieved by interleaving bits, so that noise does not destroy the data, and by error detection and correction techniques which assure that the data, as received, is identical to that transmitted. By using a variable pseudo random code, privacy of data communications are enhanced and cross-talk is substantially eliminated. The resulting system is one that can use a single twisted pair wire for transmission and is capable of transmitting data at a high rate of speed while leaving the analog voice transmission resident and unaffected on the line.
摘要翻译： 公开了一种高速且相对无差错的通信系统，其能够以19.2千比特/秒速率高速传输数据。 数据通过与语音传输相同的通信介质进行传输，数据传输对于模拟电话系统的用户实际上是不可察觉的。 通过RS232C接口连接数据终端。 利用扩频技术，无论终端是空闲，发送还是接收数据，都会使数据终端的信号“白化”。 通过交错比特来实现虚拟无错误传输，使得噪声不破坏数据，并且通过错误检测和校正技术确保所接收的数据与发送的数据相同。 通过使用可变伪随机码，数据通信的隐私被增强，并且基本上消除了串扰。 所得到的系统是可以使用单根双绞线进行传输的系统，并且能够以高速率传输数据，同时使模拟语音传输驻留在线路上并且不受影响。
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3.发明授权
公开(公告)号：US5260704A
公开(公告)日：1993-11-09
申请号：US712160
申请日：1991-05-31
申请人： Charles H. Hustig , Donald W. Moses , Robert S. Bradford , Jeffrey L. Ward , Wayne P. Olson , Janice L. Cox , Raymond S. Miller , Robert W. Moses , James M. Kresse
发明人： Charles H. Hustig , Donald W. Moses , Robert S. Bradford , Jeffrey L. Ward , Wayne P. Olson , Janice L. Cox , Raymond S. Miller , Robert W. Moses , James M. Kresse
CPC分类号： G06F17/17
摘要： A direct power output digital to analog conversion of digital audio signals operates to directly convert digital audio signals into an analog power audio output signal capable of driving a speaker, such that there is no need for further amplification or modification of the audio output signal after the direct power output digital to analog conversion of the digital audio signals. The direct power output digital to analog conversion incorporates a digital-to-analog converter within the same feedback circuit as a current-to-voltage power amplifier by using a single resistive feedback network to supply the feedback signal from the output terminal of the current-to-voltage power amplifier to the summing junction of the same current-to-voltage power amplifier.
摘要翻译： 数字音频信号的数字到模拟转换的直接功率输出操作以将数字音频信号直接转换成能够驱动扬声器的模拟功率音频输出信号，使得不需要进一步放大或修改音频输出信号 直接电源输出数字到数字音频信号的模拟转换。 直接功率输出数模转换在与电流 - 电压功率放大器相同的反馈电路内集成了数模转换器，通过使用单个电阻反馈网络来提供来自电流 - 电压功率放大器的输出端的反馈信号， 电压功率放大器到相同电流 - 电压功率放大器的求和点。
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4.发明授权
公开(公告)号：US5226000A
公开(公告)日：1993-07-06
申请号：US708912
申请日：1991-05-31
申请人： Robert W. Moses , Raymond S. Miller , Charles H. Hustig , Donald W. Moses , Robert S. Bradford , Jeffrey L. Ward , Wayne P. Olson , Janice L. Cox , James M. Kresse
发明人： Robert W. Moses , Raymond S. Miller , Charles H. Hustig , Donald W. Moses , Robert S. Bradford , Jeffrey L. Ward , Wayne P. Olson , Janice L. Cox , James M. Kresse
IPC分类号： G06F17/17
CPC分类号： G06F17/17
摘要： A method and system is provided for a digital audio system to reconstruct a digital audio signal using time domain interpolation and direct power digital-to-analog conversion. A signal processor performs the time domain interpolation on an original digital audio signal to allow for the proper recreation of the original audio signal and a direct power output digital-to-analog converter generates an analog power audio output signal from the interpolated digital audio signal that can directly drive a speaker to produce the sound waves represented by the audio output signal. The signal processor and direct power output digital-to-analog converter allow a digital audio system to more precisely reconstruct an analog power output audio signal from a digital audio signal such that there is no need for further amplification of the audio output signal and such that there will be no perceptible difference between the reconstructed digital signal and the original analog signal.
摘要翻译： 提供了一种用于数字音频系统的方法和系统，以使用时域插值和直接功率数模转换来重构数字音频信号。 信号处理器对原始数字音频信号执行时域内插以允许对原始音频信号的适当重建，并且直接功率输出数/模转换器从内插的数字音频信号产生模拟功率音频输出信号，该内插数字音频信号 可以直接驱动扬声器产生由音频输出信号表示的声波。 信号处理器和直接功率输出数模转换器允许数字音频系统从数字音频信号更精确地重建模拟功率输出音频信号，使得不需要进一步放大音频输出信号，并且使得 在重建的数字信号和原始模拟信号之间将不会有明显的差异。
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公开(公告)号：US5612943A
公开(公告)日：1997-03-18
申请号：US270252
申请日：1994-07-05
CPC分类号： G11B20/02 , G11B20/10527 , G10H2240/311
摘要： A signal processing system comprises inputs for an analog audio signal and a digital data signal. The digital data signal is modulated to an analog data signal in an inaudible frequency band. Filters are used to ensure that the audio signal is restricted to audible frequencies and that the analog data signal is restricted to inaudible frequencies. The two analog signals are then combined into a composite analog signal. The composite signal is stored on a medium such as a compact disc. Filters are used to extract and separate the two analog signals from the composite signal stored on the medium. The analog data signal is demodulated to retrieve the original digital data signal.
摘要翻译： 信号处理系统包括用于模拟音频信号和数字数据信号的输入。 数字数据信号被调制成不可听频带的模拟数据信号。 滤波器用于确保音频信号被限制在可听频率，并且模拟数据信号被限制在听不到的频率上。 然后将两个模拟信号组合成复合模拟信号。 复合信号存储在诸如光盘的介质上。 滤波器用于从存储在介质上的复合信号中提取和分离两个模拟信号。 解调模拟数据信号以检索原始数字数据信号。
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公开(公告)号：US06836254B2
公开(公告)日：2004-12-28
申请号：US10215704
申请日：2002-08-10
申请人： Antonis Kalis , Theodore Antonakopoulos , Vassilios Makios , Donald W. Moses , Charles H. Hustig
发明人： Antonis Kalis , Theodore Antonakopoulos , Vassilios Makios , Donald W. Moses , Charles H. Hustig
IPC分类号： H01Q1310
摘要： Provided is an antenna system for operating in clear line of sight and obscured line of sight conditions. The antenna system includes multiple antenna elements arranged to provide both space and angle diversity characteristics. The elements are spaced apart so as to provide independence but may have overlapping radiation patterns. Each element includes a main radiation lobe and the elements are arranged so that the main radiation lobes are oriented at diverse angles.
摘要翻译： 提供了一种用于在清晰的视线和视线条件下视线操作的天线系统。 天线系统包括布置成提供空间和角度分集特性的多个天线元件。 元件间隔开以提供独立性，但是可以具有重叠的辐射图案。 每个元件包括主辐射波瓣，并且元件布置成使得主辐射波瓣以不同的角度定向。
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公开(公告)号：US06788751B1
公开(公告)日：2004-09-07
申请号：US09552471
申请日：2000-04-18
申请人： Charles H. Hustig , Donald W. Moses
发明人： Charles H. Hustig , Donald W. Moses
IPC分类号： H04B704
CPC分类号： H04B7/12
摘要： A frequency diversity digital wireless transmission system and method according to which a number of relatively narrow bands are established, each using multiple averaging interpolators. The serial data bits are divided by a predetermined pattern among the frequency bands providing frequency diversity. In response to one or more of the bands being lost to multipath fading or interference, the interpolated signals of the remaining bands are used.
摘要翻译： 一种频率分集数字无线传输系统和方法，根据该频率分集数字无线传输系统和方法建立多个相对窄的频带，每个使用多个平均内插器。 串行数据位在提供频率分集的频带之间被预定的模式划分。 响应于一个或多个频带丢失到多径衰落或干扰，使用剩余频带的内插信号。
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公开(公告)号：US5532950A
公开(公告)日：1996-07-02
申请号：US232733
申请日：1994-04-25
CPC分类号： H03H17/02
摘要： The present invention provides an apparatus for decoding and classifying a digital audio input signal and for reconstructing the digital audio input signal, so that when the reconstructed signal is converted to an analog signal by a digital to analog converter ("DAC"), the analog signal can drive a preamplifier, power amplifier or speakers directly. In particular, the present invention proposes a digital filter than can be adapted to have appropriate filtering characteristics based on the signal being filtered. The invention uses a neural network to adjust coefficients of a digital filter, depending on whether the digital audio input signal is more periodic or more aperiodic. If the digital audio input signal is more periodic, the coefficients will configure the digital filter so that the filter has the characteristics of an analog brickwall filter. Whereas if the digital audio input signal is more aperiodic, the coefficients produced by the neural network will configure the digital filter to have more characteristics of an interpolation filter. The neural network is trained to recognize certain periodic and aperiodic signals and to produce digital filter parameters, preferably polynomial coefficients, correspondingly. The coefficients are selected to respond to the pure or blended periodic and aperiodic features of certain archetypal input signals.
摘要翻译： 本发明提供了一种用于对数字音频输入信号进行解码和分类并用于重建数字音频输入信号的装置，使得当通过数模转换器（“DAC”）将重构信号转换为模拟信号时，模拟 信号可以直接驱动前置放大器，功率放大器或扬声器。 特别地，本发明提出一种数字滤波器，其可以适于基于被滤波的信号具有适当的滤波特性。 本发明使用神经网络来调节数字滤波器的系数，这取决于数字音频输入信号是更周期性还是更周期性。 如果数字音频输入信号更周期，则系数将配置数字滤波器，使得滤波器具有模拟砖墙滤波器的特性。 而如果数字音频输入信号是非周期性的，则由神经网络产生的系数将使数字滤波器配置成具有更多的内插滤波器特征。 训练神经网络以识别某些周期性和非周期性信号并相应地产生数字滤波器参数，优选地产生多项式系数。 选择系数以响应某些原型输入信号的纯或混合周期性和非周期性特征。
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9.发明申请公开(公告)号：US20080216638A1
公开(公告)日：2008-09-11
申请号：US12042478
申请日：2008-03-05
申请人： Charles H. Hustig
发明人： Charles H. Hustig
IPC分类号： G10H7/00
CPC分类号： G10H1/0066 , G10H2240/325
摘要： A system for the high speed digital transmission of musical commands includes a transmitter and a receiver. The transmitter includes a MIDI input that provides key-on commands. A bitstream formatter in the transmitter maps the key-on commands to a plurality of mapped key-on commands. The transmitter also includes a synchronizing stage, a line coder, and an output driver that prepare and subsequently output the mapped key-on commands to a transmission medium. The receiver includes a signal receiver and a line decoder for receiving and decoding the commands from the transmission medium. The receiver also includes a synchronizing stage. A serial-to-parallel converter in the receiver responds to the mapped key-on commands by activating associated outputs. A driver produces an electrical output.
摘要翻译： 用于音乐命令的高速数字传输的系统包括发射机和接收机。 发射器包括一个提供键控命令的MIDI输入。 发射机中的比特流格式化器将密钥命令映射到多个映射的密钥命令。 发射机还包括同步级，线路编码器和输出驱动器，其准备并随后将映射的键入命令输出到传输介质。 接收机包括信号接收器和用于接收和解码来自传输介质的命令的线路解码器。 接收机还包括同步级。 接收机中的串行到并行转换器通过激活相关输出来响应映射的按键命令。 驱动器产生电气输出。
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公开(公告)号：US4724435A
公开(公告)日：1988-02-09
申请号：US796052
申请日：1985-11-06
申请人： Donald W. Moses , Robert Moses , James W. Kinne , Charles H. Hustig , Wayne P. Olson , Alan M. Doberstein , Robert S. Bradford
发明人： Donald W. Moses , Robert Moses , James W. Kinne , Charles H. Hustig , Wayne P. Olson , Alan M. Doberstein , Robert S. Bradford
CPC分类号： H02J13/0072 , H04M11/002 , Y02E60/7846 , Y04S40/125
摘要： The data telemetry system disclosed is a complete data communications systems suitable for use by utilities such as electric companies, gas companies and water companies which can be used for meter reading and load management at individual subscribers premises. Elements of the system can also be used as a power load carrier in a premise specific local area network (LAN). With the system is disclosed, all 10,000 subscribers per exchange can be serviced. It will be understood that data can be multiplexed between a central office location and remote subscribers for any suitable purpose with the data system as disclosed. A packet switching structure is disclosed having eight to thirty-two bytes in the data message. This packet is routed between the utility and remote subscriber with routing headers being added and deleted as required by the network modules. Each successive layer of the multiplexing and switching hierarchy submultiplies the aggregate 10,000 channel capacity into fewer channels. Both time and space division switching and multiplexing are used.
摘要翻译： 所公开的数据遥测系统是适用于诸如电力公司，燃气公司和水公司的公用事业的完整数据通信系统，可用于各个用户场所的抄表和负载管理。 系统的元件也可以用作内部特定局域网（LAN）中的电力负载运营商。 通过系统披露，每个交换机可以维护10,000个用户。 应当理解，在所公开的数据系统的任何适当目的下，可以在中心局位置和远程用户之间复用数据。 公开了一种在数据消息中具有八到三十二个字节的分组交换结构。 该分组在实用程序和远程用户之间路由，并且根据网络模块的要求添加和删除路由头。 复合和交换层级的每个连续层将聚合的10,000个信道容量乘以较少的信道。 使用时分和空分切换和多路复用。
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