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    • 1. 发明授权
    • Sketching unit for transmission of sketches and notes over normal
telephone lines
    • 用于通过普通电话线传送草图和笔记的草绘单元
    • US5719923A
    • 1998-02-17
    • US369764
    • 1995-01-06
    • Gordon BremerAhmad M. HassanJohn C. KrejciSusan J. SeamonKenneth David KoLuke J. SmithwickRichard Kent Smith
    • Gordon BremerAhmad M. HassanJohn C. KrejciSusan J. SeamonKenneth David KoLuke J. SmithwickRichard Kent Smith
    • H04M11/00
    • H04M11/00
    • 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.
    • 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。
    • 2. 发明授权
    • Sketching unit for transmission of sketches and notes over normal
telephone lines
    • 用于通过普通电话线传送草图和笔记的草绘单元
    • US5915003A
    • 1999-06-22
    • US802976
    • 1997-02-20
    • Gordon BremerAhmad M. HassanJohn C. KrejciSusan J. SeamonKenneth David KoLuke J. SmithwickRichard Kent Smith
    • Gordon BremerAhmad M. HassanJohn C. KrejciSusan J. SeamonKenneth David KoLuke J. SmithwickRichard Kent Smith
    • A63F13/12H04J7/00H04L27/18H04L27/34H04M11/00H04M11/06H04N7/08H04N21/2368H04N21/2383H04N21/434H04N21/438
    • H04L27/32A63F13/12H04J7/00H04L27/186H04L27/3483H04M11/06H04N21/2383H04N21/4382H04N7/08
    • 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.
    • 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
    • Method and apparatus for simultaneous voice/data transmission
    • 同时进行语音/数据传输的方法和装置
    • US5796716A
    • 1998-08-18
    • US562954
    • 1995-11-27
    • Richard Kent Smith
    • Richard Kent Smith
    • H04B3/02H04J3/00H04L25/49H04L27/34H04M11/06H04J11/00
    • H04M11/06H04L25/4908H04L27/3461
    • A method and simultaneous voice/data transmission of signals through a single communications channel wherein the transmitted voice and data signal quality is greatly enhanced over current practice. A time-varying stream of coded voice and data signals is simultaneously transmitted and the sequence of transmitted data signals is determined only after receiving data signals for a predetermined period of time. The received signals are buffered and a received coded data signal sequence is compared to a predetermined plurality of permissible coded data signal sequences to correlate the received coded data signal sequence with the particular permissible coded signal sequence with which the data signal was coded prior to transmission. The correlated data signal sequence is then separated from the combined voice and data signal to recover the coded voice signal. The recovered voice signal and correlated data signal sequence are thereafter decoded to recover the voice and data signals that were received and coded by the transmitter. Timing and equalization of the receiver are also maintained during intervals in which no data signals are transmitted, i.e. "voice only" mode, by generating in such intervals a data tracking signal for combination with the coded voice signal and transmission of the resulting combined signal to the receiver.
    • 通过单个通信信道的方法和信号的同时语音/数据传输,其中传输的语音和数据信号质量比当前实践大大增强。 同时发送编码语音和数据信号的随时间变化的流,并且仅在接收到数据信号一段预定时间后确定所发送的数据信号的序列。 所接收的信号被缓冲,并将接收到的编码数据信号序列与预定的多个允许的编码数据信号序列进行比较,以将接收到的编码数据信号序列与在发送之前对数据信号进行编码的特定允许编码信号序列进行相关。 然后将相关的数据信号序列与组合的语音和数据信号分离,以恢复编码的语音信号。 然后,恢复的语音信号和相关数据信号序列被解码,以恢复由发送器接收和编码的语音和数据信号。 在没有数据信号发送的间隔(即“仅话音”)模式中,通过在这样的间隔中产生与编码的语音信号组合的数据跟踪信号并将所得到的组合信号传输到 收件人。