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1. 发明授权

US5521942A Method for increasing the dynamic range of a signal in a simultaneous voice and data system by the use of overlapping signal point regions and trellis coding 失效
标题翻译：通过使用重叠信号点区域和网格编码来增加同时语音和数据系统中的信号的动态范围的方法
公开(公告)号：US5521942A
公开(公告)日：1996-05-28
申请号：US76507
申请日：1993-06-14
申请人： William L. Betts , Gordon Bremer , Luke J. Smithwick , Edward S. Zuranski
发明人： William L. Betts , Gordon Bremer , Luke J. Smithwick , Edward S. Zuranski
IPC分类号： H03M13/00 , H03M13/01 , H03M13/25 , H04L27/34 , H04L27/04 , G06F11/10 , H04L5/12 , H04L23/02
CPC分类号： H03M13/25 , H03M13/01 , H04L27/3433 , H04L27/3483
摘要： A communications system simultaneously transmits both a primary data signal and a secondary voice signal in such a way that the dynamic range of the secondary voice signal is increased even though deliberate errors are introduced into the transmitted data portion of the signal. In particular, the communications system includes an error correcting technique like channel encoding and the constellation signal space is divided into a number of regions, where at least one of the regions overlaps with another region. The primary signal is channel encoded to select a particular one of the number of regions, the region being represented by a reference signal point value. The voice signal is encoded to provide a signal point vector, which is added to the reference signal point in such a way that the resultant signal point is located in the overlapping region thereby deliberately introducing an error into the resulting transmitted signal point stream. Notwithstanding the deliberately introduced error, the channel encoding of the primary signal allows a receiver to recover the originally selected reference signal point value, which when subtracted from the received signal point value approximates the voice signal.
摘要翻译：通信系统同时发送主数据信号和辅助语音信号，使得即使有意的错误被引入到信号的发送数据部分中，辅助语音信号的动态范围也增加。特别地，通信系统包括像信道编码的纠错技术，并且星座信号空间被划分成多个区域，其中至少一个区域与另一个区域重叠。信道编码主信号以选择区域数目中的特定一个，该区域由参考信号点值表示。语音信号被编码以提供信号点向量，其被添加到参考信号点，使得所得到的信号点位于重叠区域中，从而故意将错误引入到所得到的发送信号点流中。尽管故意引入的误差，主信号的信道编码允许接收机恢复原来选择的参考信号点值，当从接收信号点值减去近似该语音信号时。

2. 发明授权

US5475713A Shaped signal spaces in a simultaneous voice and data system 失效
标题翻译：同步语音和数据系统中的形状信号空间
公开(公告)号：US5475713A
公开(公告)日：1995-12-12
申请号：US76530
申请日：1993-06-14
申请人： Gordon Bremer , Kenneth D. Ko , Luke J. Smithwick
发明人： Gordon Bremer , Kenneth D. Ko , Luke J. Smithwick
IPC分类号： H04J7/00 , H04L27/34 , H04L5/12 , H04L27/04
CPC分类号： H04J7/00 , H04L27/3483
摘要： In a simultaneous voice and data communications system, a voice signal is mapped into an N-dimensional signal space constellation as a vector, and added to a reference signal point, i.e., a data symbol, where the data symbol is selected from a constellation of data symbols every signaling interval as a function of a data signal. The constellation signal space is further divided into a number of shaped regions, where each region is associated with a different one of the data symbols. The shape of each region is selected as a function of the characteristics of the voice, or audio, signal. In particular, each region illustratively has a rectangular shape.
摘要翻译：在同时的语音和数据通信系统中，语音信号被映射为N维信号空间星座作为向量，并且被添加到参考信号点，即数据符号，其中数据符号从每个信令间隔的数据符号作为数据信号的函数。星座信号空间被进一步分成多个成形区域，其中每个区域与不同的数据符号相关联。根据声音或音频信号的特性来选择每个区域的形状。特别地，每个区域示例性地具有矩形形状。

3. 发明授权

US5915003A Sketching unit for transmission of sketches and notes over normal telephone lines 失效
标题翻译：用于通过普通电话线传送草图和笔记的草绘单元
公开(公告)号：US5915003A
公开(公告)日：1999-06-22
申请号：US802976
申请日：1997-02-20
申请人： Gordon Bremer , Ahmad M. Hassan , John C. Krejci , Susan J. Seamon , Kenneth David Ko , Luke J. Smithwick , Richard Kent Smith
发明人： Gordon Bremer , Ahmad M. Hassan , John C. Krejci , Susan J. Seamon , Kenneth David Ko , Luke J. Smithwick , Richard Kent Smith
IPC分类号： A63F13/12 , H04J7/00 , H04L27/18 , H04L27/34 , H04M11/00 , H04M11/06 , H04N7/08 , H04N21/2368 , H04N21/2383 , H04N21/434 , H04N21/438
CPC分类号： H04L27/32 , A63F13/12 , H04J7/00 , H04L27/186 , H04L27/3483 , H04M11/06 , H04N21/2383 , H04N21/4382 , H04N7/08
摘要： A sketching system sketches first notes to be transmitted over a telephone line receives second notes from another sketching system. The sketching system includes a signal de-combiner device, receiving the second notes from the another sketching system and voice data as a combined signal via the telephone line and de-combining the combined signal into the second notes and the voice data. In addition, the sketching system includes a sketching unit connected to the signal de-combiner. The sketching unit includes a note displaying device displaying the first and second notes, a note generating device generating the first notes, and a processor connected to the note displaying and generating devices and to the signal de-combiner, receiving the first notes from the note generating device, receiving the second notes to the note displaying device. The sketching unit further includes a clearing unit selectively clearing one of the note displaying device and another note displaying device of the another sketching system and an erase unit selectively erasing the first and second notes displayed on one of the note displaying device and the another note displaying device. Finally, the sketching system includes a first lock device selectively preventing the processor from transmitting the first notes to the signal de-combiner preventing the first notes from being displayed on the another sketching system, and a second lock device for selectively preventing the processor from transmitting the second notes to the note displaying device.
摘要翻译：草图系统草图通过电话线传输的第一个音符从另一个素描系统接收第二个音符。该草图系统包括信号解组合装置，经由电话线接收来自另一草图系统的第二音符和语音数据作为组合信号，并将组合的信号解组合成第二音符和语音数据。此外，草图系统包括连接到信号解组合器的草绘单元。草图单元包括显示第一和第二音符的音符显示装置，产生第一音符的音符产生装置，以及连接到音符显示和产生装置的处理器以及信号解组合器，从音符中接收第一音符生成装置，将第二音符接收到音符显示装置。该草图单元还包括清理单元，其选择性地清除另一个素描系统中的一个音符显示设备和另一个音符显示设备;以及擦除单元，其选择性地擦除在音符显示设备之一上显示的第一和第二音符以及另一音符显示设备。最后，草图系统包括第一锁定装置，其选择性地防止处理器将第一音符发送到信号解组合器，以防止第一音符被显示在另一个素描系统上;第二锁定装置，用于选择性地防止处理器发送笔记显示装置的第二个音符。

4. 发明授权

US5719923A Sketching unit for transmission of sketches and notes over normal telephone lines 失效
标题翻译：用于通过普通电话线传送草图和笔记的草绘单元
公开(公告)号：US5719923A
公开(公告)日：1998-02-17
申请号：US369764
申请日：1995-01-06
申请人： Gordon Bremer , Ahmad M. Hassan , John C. Krejci , Susan J. Seamon , Kenneth David Ko , Luke J. Smithwick , Richard Kent Smith
发明人： Gordon Bremer , Ahmad M. Hassan , John C. Krejci , Susan J. Seamon , Kenneth David Ko , Luke J. Smithwick , Richard Kent Smith
IPC分类号： H04M11/00
CPC分类号： H04M11/00
摘要： A sketching system sketches first notes to be transmitted over a telephone line and receives second notes from another sketching system. The sketching system includes a signal de-combiner device, receiving the second notes from the another sketching system and voice data as a combined signal via the telephone line and de-combining the combined signal into the second notes and the voice data. In addition, the sketching system includes a sketching unit connected to the signal de-combiner. The sketching unit includes a note displaying device displaying the first and second notes, a note generating device generating the first notes, and a processor connected to the note displaying and generating devices and to the signal de-combiner, receiving the first notes from the note generating device, receiving the second notes from the de-combiner, and transmitting the first and second notes to the note displaying device. The sketching unit further includes a clearing unit selectively clearing one of the note displaying device and another note displaying device of the another sketching system and an erase unit selectively erasing the first and second notes displayed on one of the note displaying device and the another note displaying device. Finally, the sketching system includes a first lock device selectively preventing the processor from transmitting the first notes to the signal de-combiner preventing the first notes from being displayed on the another sketching system, and a second lock device for selectively preventing the processor from transmitting the second notes to the note displaying device.
摘要翻译：草图系统绘制通过电话线传输的第一个音符，并从另一个素描系统接收第二个音符。该草图系统包括信号解组合装置，经由电话线接收来自另一草图系统的第二音符和语音数据作为组合信号，并将组合的信号解组合成第二音符和语音数据。此外，草图系统包括连接到信号解组合器的草绘单元。草图单元包括显示第一和第二音符的音符显示装置，产生第一音符的音符产生装置，以及连接到音符显示和产生装置的处理器以及信号解组合器，从音符中接收第一音符从解组合器接收第二音符，并将第一和第二音符发送到音符显示装置。该草图单元还包括清理单元，其选择性地清除另一个素描系统中的一个音符显示设备和另一个音符显示设备;以及擦除单元，其选择性地擦除在音符显示设备之一上显示的第一和第二音符以及另一音符显示设备。最后，草图系统包括第一锁定装置，其选择性地防止处理器将第一音符发送到信号解组合器，以防止第一音符被显示在另一个素描系统上;第二锁定装置，用于选择性地防止处理器发送笔记显示装置的第二个音符。

5. 发明授权

US5537436A Simultaneous analog and digital communication applications 失效
标题翻译：同时模拟和数字通信应用
公开(公告)号：US5537436A
公开(公告)日：1996-07-16
申请号：US76520
申请日：1993-06-14
申请人： Stanley Bottoms , Gordon Bremer , Joseph Q. Chapman , William R. Davis , Kenneth D. Ko , D. Randy Roberson , Luke J. Smithwick , Richard K. Smith
发明人： Stanley Bottoms , Gordon Bremer , Joseph Q. Chapman , William R. Davis , Kenneth D. Ko , D. Randy Roberson , Luke J. Smithwick , Richard K. Smith
IPC分类号： H04L27/00 , H04J7/00 , H04L27/18 , H04L27/34 , H04M11/00 , H04B1/38
CPC分类号： H04L27/3483 , H04J7/00 , H04L27/18
摘要： A number of arrangements and methods that achieve concurrent communication of analog information and digital information. In general terms, when the communication channel is viewed as a multi-dimensional space, the digital information signal is divided into symbols, and the symbols are mapped onto the signal space with a preset distance between them. The analog signal, generally limited in magnitude to less than half the distance separating the symbols, is converted to component signals and added (i.e., vector addition) to the symbols. The sum signal is then transmitted to the receiver where the symbols are detected and subtracted from the received signal to yield the analog signal components. The transmitted analog signal is recreated from those components. Arrangements utilizing the above principles are applications where systems that include a digital port can benefit from an analog communication channel, and conversely, where systems that include an analog port can benefit from a digital communication channel.
摘要翻译：实现模拟信息和数字信息的并发通信的一些安排和方法。一般来说，当通信信道被视为多维空间时，数字信息信号被划分为符号，并且符号以它们之间的预定距离映射到信号空间。通常将模拟信号限制为小于分隔符号的距离的一半，被转换成分量信号并且相加（即矢量相加）到符号。然后将和信号发送到接收机，其中检测符号并从接收信号中减去符号以产生模拟信号分量。传输的模拟信号从这些组件重新创建。利用上述原理的安排是包括数字端口的系统可以受益于模拟通信信道的应用，相反地，包括模拟端口的系统可以从数字通信信道中受益。

6. 发明授权

US5881047A Simultaneous analog and digital communication with improved phase immunity 失效
标题翻译：具有提高相位抗扰度的同时模拟和数字通信
公开(公告)号：US5881047A
公开(公告)日：1999-03-09
申请号：US327270
申请日：1994-10-21
申请人： Gordon Bremer , Kenneth David Ko , Luke J. Smithwick
发明人： Gordon Bremer , Kenneth David Ko , Luke J. Smithwick
IPC分类号： H04L27/18 , H04J7/00 , H04L27/34 , H04J11/00
CPC分类号： H04L27/3483 , H04J7/00
摘要： A first phase change is introduced to an analog signal based on a symbol specified by a data signal, where the symbol is one of a plurality of symbols in a symbol constellation. The analog signal is added to the data signal to form a combined signal which is transmitted over a communication channel that introduces a channel phase change to the analog and data signals. After transmission through the communication channel, the combined signal comprises a phase changed analog signal and a phase changed data signal. A received symbol is specified by the phase changed data signal, and a phase shift is introduced to the phase changed analog signal based on the identity of the received symbol.
摘要翻译：基于由数据信号指定的符号将模拟信号引入第一相位变化，其中符号是符号星座中的多个符号之一。模拟信号被加到数据信号上以形成一个组合信号，该组合信号通过一个通道传送，该信道将信道相位变化引入模拟信号和数据信号。在通过通信信道传输之后，组合信号包括相变模拟信号和相位改变的数据信号。接收到的符号由相位改变的数据信号指定，并且基于所接收的符号的标识将相移引入相变模拟信号。

7. 发明授权

US5559791A Companding of voice signal for simultaneous voice and data transmission 失效
标题翻译：语音信号压缩同步语音和数据传输
公开(公告)号：US5559791A
公开(公告)日：1996-09-24
申请号：US76506
申请日：1993-06-14
申请人： Gordon Bremer , Kenneth D. Ko , Luke J. Smithwick
发明人： Gordon Bremer , Kenneth D. Ko , Luke J. Smithwick
IPC分类号： H03M7/30 , H03G7/00 , H04J7/00 , H04L27/34 , H04J11/00
CPC分类号： H03G7/007 , H04J7/00 , H04L27/3483
摘要： In a simultaneous voice and data communications system, a voice signal is added to a data signal before transmission over the public switched telephone network (PSTN). In particular, in every signaling interval, a signal point is selected for transmission as a function of both the voice signal and the data signal. Since the voice signal is effectively offset by the data signal, compandors normally found in the PSTN are not effective in improving the signal to noise ratio of the transmitted voice and data signal. Therefore, the voice signal is additionally companded in the transmitter before transmission over the PSTN. This additional companding by the transmitter improves the signal to noise ratio of the combined voice and data signal.
摘要翻译：在同时的语音和数据通信系统中，在通过公共交换电话网（PSTN）传输之前，将语音信号添加到数据信号。特别地，在每个信令间隔中，选择信号点作为语音信号和数据信号两者的传输。由于语音信号被数据信号有效地偏移，所以在PSTN中通常发现的压缩器在提高发送的语音和数据信号的信噪比方面是无效的。因此，在通过PSTN传输之前，语音信号被附加地压缩在发射机中。发射机的这种附加压扩可以提高组合的语音和数据信号的信噪比。

8. 发明授权

US5448555A Simultaneous analog and digital communication 失效
标题翻译：同时模拟和数字通信
公开(公告)号：US5448555A
公开(公告)日：1995-09-05
申请号：US76505
申请日：1993-06-14
申请人： Gordon Bremer , Kenneth D. Ko , Luke J. Smithwick
发明人： Gordon Bremer , Kenneth D. Ko , Luke J. Smithwick
IPC分类号： A63F13/12 , H04J7/00 , H04L27/18 , H04L27/34 , H04M11/00 , H04M11/06 , H04N7/08 , H04N21/2368 , H04N21/2383 , H04N21/434 , H04N21/438 , H04J11/00
CPC分类号： H04L27/32 , A63F13/12 , H04J7/00 , H04L27/186 , H04L27/3483 , H04M11/06 , H04N21/2383 , H04N21/4382 , H04N7/08
摘要： A method and apparatus for concurrent communication of analog information and digital information. In general terms, when the communication channel is viewed as a multi-dimensional space, the digital information signal is divided into symbols, and the symbols are mapped onto the signal space with a preset distance between them. The analog signal, generally limited in magnitude to less than the distance separating the symbols, is converted to component signals and added (i.e., vector addition) to the symbols. The sum signal is then transmitted to the receiver where the symbols are detected and subtracted from the received signal to yield the analog signal components. The transmitted analog signal is recreated from those components. Both half-duplex and full-duplex operation is available in accordance with the disclosure.
摘要翻译：一种用于模拟信息和数字信息的并发通信的方法和装置。一般来说，当通信信道被视为多维空间时，数字信息信号被分成符号，并且将符号以它们之间的预定距离映射到信号空间上。通常将模拟信号限制在小于分开符号的距离的模拟信号被转换成分量信号并且相加（即向量相加）到符号。然后将和信号发送到接收机，其中检测符号并从接收信号中减去符号以产生模拟信号分量。传输的模拟信号从这些组件重新创建。半双工和全双工操作均可根据本公开进行。

9. 发明授权

US5671250A Autorate method for simultaneous transmission of voice data 失效
标题翻译：用于同时传输语音数据的自动方法
公开(公告)号：US5671250A
公开(公告)日：1997-09-23
申请号：US352297
申请日：1994-12-08
申请人： Gordon Bremer , Kenneth David Ko , Luke J. Smithwick , Edward Sigmund Zuranski
发明人： Gordon Bremer , Kenneth David Ko , Luke J. Smithwick , Edward Sigmund Zuranski
IPC分类号： H03M13/35 , H04L1/00 , H04L1/20 , H04L5/16
CPC分类号： H04L1/0002 , H03M13/35 , H04L1/20 , Y02B60/31
摘要： In a simultaneous voice and data communications system comprising two modems, an autorate feature is implemented in one illustrative method by adding a silence detector to the receiver circuitry of at least one of the modems in such a way that noise statistics for the communications channel are only accumulated during intervals of silence. If the resulting noise statistics exceed a predetermined threshold, i.e., the communications channel is too noisy, the receiving modem negotiates a lower data rate with the transmitting modem. In another illustrative method, the transmitting modem provides a signal, which represents an interval of silence, to the receiving modem. Upon receipt of the signal, the receiving modem accumulates error statistics in order to determine if the communications channel is too noisy.
摘要翻译：在包括两个调制解调器的同时语音和数据通信系统中，通过将静音检测器添加到至少一个调制解调器的接收器电路中，以一种说明性方法来实现自动特征，使得通信信道的噪声统计仅为在沉默期间积累。如果得到的噪声统计量超过预定阈值，即通信信道太嘈杂，则接收调制解调器与发射调制解调器协商较低的数据速率。在另一说明性方法中，发射调制解调器向接收调制解调器提供表示静默间隔的信号。在接收到信号时，接收调制解调器累积误差统计，以便确定通信信道是否太嘈杂。

10. 发明授权

US5661718A Simultaneous analog and digital communication 失效
标题翻译：同时模拟和数字通信
公开(公告)号：US5661718A
公开(公告)日：1997-08-26
申请号：US453855
申请日：1995-05-30
申请人： Gordon Bremer , Nuggehally Sampath Jayant , Kenneth David Ko , Nambirajan Seshadri , Luke J. Smithwick
发明人： Gordon Bremer , Nuggehally Sampath Jayant , Kenneth David Ko , Nambirajan Seshadri , Luke J. Smithwick
IPC分类号： A63F13/12 , H04J7/00 , H04L27/18 , H04L27/34 , H04M11/00 , H04M11/06 , H04N7/08 , H04N21/2368 , H04N21/2383 , H04N21/434 , H04N21/438
CPC分类号： H04L27/32 , A63F13/12 , H04J7/00 , H04L27/186 , H04L27/3483 , H04M11/06 , H04N21/2383 , H04N21/4382 , H04N7/08
摘要： A method and apparatus for concurrent communication of analog information and digital information. In general terms, when the communication channel is viewed as a multi-dimensional space, the digital information signal is divided into symbols, and the symbols are mapped onto the signal space with a preset distance between them. The analog signal, generally limited in magnitude to less than the distance separating the symbols, is converted to component signals and added (i.e., vector addition) to the symbols. The sum signal is then transmitted to the receiver where the symbols are detected and subtracted from the received signal to yield the analog signal components. The transmitted analog signal is recreated from those components. Both half-duplex and full-duplex operation is available in accordance with the disclosure.
摘要翻译：一种用于模拟信息和数字信息的并发通信的方法和装置。一般来说，当通信信道被视为多维空间时，数字信息信号被划分为符号，并且符号以它们之间的预定距离映射到信号空间。通常将模拟信号限制在小于分开符号的距离的模拟信号被转换成分量信号并且相加（即向量相加）到符号。然后将和信号发送到接收机，其中检测符号并从接收信号中减去符号以产生模拟信号分量。传输的模拟信号从这些组件重新创建。半双工和全双工操作均可根据本公开进行。

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