公开(公告)号：US07362841B2

公开(公告)日：2008-04-22

申请号：US10292290

申请日：2002-11-12

Applicant: Timothy J. Dupuis ,  George Tyson Tuttle ,  Jeffrey W. Scott ,  Navdeep S. Sooch ,  David R. Welland

Inventor： Timothy J. Dupuis ,  George Tyson Tuttle ,  Jeffrey W. Scott ,  Navdeep S. Sooch ,  David R. Welland

IPC: H04L23/00

CPC classification number: H04L25/06 ,  H04L7/033 ,  H04L25/0266 ,  H04M11/06 ,  H04M19/001

Abstract: A digital direct access arrangement (DAA) circuitry may be used to terminate the telephone connections at the user's end that provides a communication path for signals to and from the phone lines. Briefly described, the DAA provides a programmable means for the DC termination for a variety of international phone standards. The invention may also be utilized with means for transmitting and receiving a signal across a capacitive isolation barrier. More particularly, a DC holding circuit is provided in which a programmable DC current limiting mode is available. In the current limiting mode, power may be dissipated in devices external to a DAA integrated circuit. Moreover, much of the power may be dissipated in external passive devices, such as resistors.

Abstract translation: 可以使用数字直接访问布置（DAA）电路来终止在用户端的电话连接，其提供用于到达和来自电话线的信号的通信路径。 简要描述，DAA提供用于各种国际电话标准的DC终端的可编程装置。 本发明还可以用于在电容隔离屏障上传输和接收信号的装置。 更具体地，提供了一种DC可编程直流限流模式可用的直流保持电路。 在限流模式下，功率可能会在DAA集成电路外部的器件中耗散。 此外，大部分功率可能会在外部无源器件（如电阻）中消散。

公开(公告)号：US06504864B1

公开(公告)日：2003-01-07

申请号：US09098488

申请日：1998-06-16

Applicant: Timothy J. Dupuis ,  George Tyson Tuttle ,  Jeffrey W. Scott ,  Navdeep S. Sooch ,  David R. Welland

Inventor： Timothy J. Dupuis ,  George Tyson Tuttle ,  Jeffrey W. Scott ,  Navdeep S. Sooch ,  David R. Welland

IPC: H04B300

CPC classification number: H04L25/06 ,  H04L7/033 ,  H04L25/0266 ,  H04M1/573 ,  H04M11/06 ,  H04M19/001 ,  H04M19/02

Abstract: A digital direct access arrangement (DAA) circuitry may be used to terminate the telephone connections at the user's end that provides a communication path for signals to and from the phone lines. Briefly described, the DAA provides a programmable means for the DC termination for a variety of international phone standards. The invention may also be utilized with means for transmitting and receiving a signal across a capacitive isolation barrier. More particularly, a DC holding circuit is provided that is a second order circuit. The use of a second order circuit provides improved distortion characteristics, particularly at low frequencies.

Abstract translation: 可以使用数字直接访问布置（DAA）电路来终止在用户端的电话连接，其提供用于到达和来自电话线的信号的通信路径。 简要描述，DAA提供用于各种国际电话标准的DC终端的可编程装置。 本发明还可以用于在电容隔离屏障上传输和接收信号的装置。 更具体地，提供作为二阶电路的DC保持电路。 使用二阶电路提供改进的失真特性，特别是在低频下。

公开(公告)号：US06201865B1

公开(公告)日：2001-03-13

申请号：US09097621

申请日：1998-06-16

Applicant: Timothy J. Dupuis ,  George Tyson Tuttle ,  Jeffrey W. Scott ,  Navdeep S. Sooch ,  David R. Welland

Inventor： Timothy J. Dupuis ,  George Tyson Tuttle ,  Jeffrey W. Scott ,  Navdeep S. Sooch ,  David R. Welland

IPC: H04M1100

CPC classification number: H04L25/06 ,  H04L7/033 ,  H04L25/0266 ,  H04M11/06 ,  H04M19/001

Abstract: A digital direct access arrangement (DAA) circuitry may be used to terminate the telephone connections at the user's end that provides a communication path for signals to and from the phone lines. Briefly described, the DAA provides a programmable means for the DC termination for a variety of international phone standards. The invention may also be utilized with means for transmitting and receiving a signal across a capacitive isolation barrier. More particularly, a DC holding circuit is provided that has switchable time constants. A first time constant may be utilized during a first operation phase immediately after off-hook conditions to allow for fast settling times. Then, a second operation phase is entered in which a second time constant may be utilized. During the second operation phase the DC holding circuit operates slower to create improved low frequency performance.

Abstract translation: 可以使用数字直接访问布置（DAA）电路来终止在用户端的电话连接，其提供用于到达和来自电话线的信号的通信路径。 简要描述，DAA提供用于各种国际电话标准的DC终端的可编程装置。 本发明还可以用于在电容隔离屏障上传输和接收信号的装置。 更具体地，提供具有可切换时间常数的DC保持电路。 可以在摘机状态之后的第一操作阶段期间利用第一时间常数以允许快速建立时间。 然后，输入第二操作阶段，其中可以使用第二时间常数。 在第二操作阶段期间，DC保持电路运行较慢以产生改进的低频性能。

公开(公告)号：US08264387B2

公开(公告)日：2012-09-11

申请号：US11396097

申请日：2006-03-31

Applicant: Lawrence Der ,  George Tyson Tuttle ,  Alessandro Piovaccari ,  Chunyu Xin ,  Scott Haban ,  Javier Elenes ,  Dan Kasha ,  Peter Vancorenland

Inventor： Lawrence Der ,  George Tyson Tuttle ,  Alessandro Piovaccari ,  Chunyu Xin ,  Scott Haban ,  Javier Elenes ,  Dan Kasha ,  Peter Vancorenland

IPC: H03M1/00

CPC classification number: H04B1/40 ,  H03M3/398 ,  H03M3/40 ,  H03M3/448 ,  H03M3/452 ,  H03M3/50

Abstract: A transceiver includes a processor and an analog-to-digital converter. The processor is adapted to in a transmit mode of the transceiver, generate a modulated signal in response to a first digital signal. In a receive mode of the transceiver, the processor is adapted to generate a demodulated signal in response to a second digital signal. The analog-to-digital converter provides the first digital signal in the transmit mode and provides the second digital signal in the receive mode.

Abstract translation: 收发器包括一个处理器和一个模拟 - 数字转换器。 处理器适于在收发器的发射模式中，响应于第一数字信号产生调制信号。 在收发器的接收模式中，处理器适于响应于第二数字信号产生解调信号。 模数转换器以发送模式提供第一数字信号，并在接收模式下提供第二数字信号。

公开(公告)号：US20100328542A1

公开(公告)日：2010-12-30

申请号：US12493034

申请日：2009-06-26

Applicant: Abhishek V. Kammula ,  Aslamali A. Rafi ,  George Tyson Tuttle

Inventor： Abhishek V. Kammula ,  Aslamali A. Rafi ,  George Tyson Tuttle

IPC: H04N5/52 ,  H03F3/45

CPC classification number: H04N5/455 ,  H03F3/45179 ,  H03F3/68 ,  H03F2203/45306 ,  H03F2203/45311 ,  H03F2203/45352 ,  H03F2203/45386 ,  H03F2203/45394 ,  H03F2203/45396 ,  H03F2203/45621 ,  H03F2203/45704 ,  H03G1/0029 ,  H04N21/4382

Abstract: A low-noise amplifier includes a first resistor that receives a first signal of a differential input signal, and a second resistor that receives a second signal of the differential input signal. The amplifier includes a first transconductance device coupled to the first resistor that provides a first signal of a differential output signal, and a second transconductance device coupled to the second resistor, that provides a second signal of the differential output signal. The receiver also includes a first capacitor coupled between the first resistor input and a control electrode on the second transconductance device, and a second capacitor coupled between the second resistor input and a control electrode on the first transconductance device. The low-noise amplifier can include additional gain stages.

Abstract translation: 低噪声放大器包括接收差分输入信号的第一信号的第一电阻器和接收差分输入信号的第二信号的第二电阻器。 放大器包括耦合到第一电阻器的第一跨导器件，其提供差分输出信号的第一信号，以及耦合到第二电阻器的第二跨导器件，其提供差分输出信号的第二信号。 接收器还包括耦合在第一电阻器输入端和第二跨导器件上的控制电极之间的第一电容器，以及耦合在第二电阻器输入端和第一跨导器件上的控制电极之间的第二电容器。 低噪声放大器可以包括额外的增益级。

公开(公告)号：US06498825B1

公开(公告)日：2002-12-24

申请号：US09098489

申请日：1998-06-16

Applicant: Timothy J. Dupuis ,  George Tyson Tuttle ,  Jeffrey W. Scott ,  Navdeep S. Sooch ,  David R. Welland

Inventor： Timothy J. Dupuis ,  George Tyson Tuttle ,  Jeffrey W. Scott ,  Navdeep S. Sooch ,  David R. Welland

IPC: H04B1500

CPC classification number: H04L25/06 ,  H04L7/033 ,  H04L25/0266 ,  H04M11/06 ,  H04M19/001

Abstract: A digital direct access arrangement (DAA) circuitry may be used to terminate the telephone connections at the user's end that provides a communication path for signals to and from the phone lines. Briefly described, the DAA provides a programmable means for the DC termination for a variety of international phone standards. The invention may also be utilized with means for transmitting and receiving a signal across a capacitive isolation barrier. More particularly, a DC holding circuit is provided in which a programmable DC current limiting mode is available. In the current limiting mode, power may be dissipated in devices external to a DAA integrated circuit. Moreover, much of the power may be dissipated in external passive devices, such as resistors.

Abstract translation: 可以使用数字直接访问布置（DAA）电路来终止在用户端的电话连接，其提供用于到达和来自电话线的信号的通信路径。 简要描述，DAA提供用于各种国际电话标准的DC终端的可编程装置。 本发明还可以用于在电容隔离屏障上传输和接收信号的装置。 更具体地，提供了一种DC可编程直流限流模式可用的直流保持电路。 在限流模式下，功率可能会在DAA集成电路外部的器件中耗散。 此外，大部分功率可能会在外部无源器件（如电阻）中消散。

公开(公告)号：US07973603B2

公开(公告)日：2011-07-05

申请号：US12493034

申请日：2009-06-26

Applicant: Abhishek V. Kammula ,  Aslamali A. Rafi ,  George Tyson Tuttle

Inventor： Abhishek V. Kammula ,  Aslamali A. Rafi ,  George Tyson Tuttle

IPC: H03G3/10

CPC classification number: H04N5/455 ,  H03F3/45179 ,  H03F3/68 ,  H03F2203/45306 ,  H03F2203/45311 ,  H03F2203/45352 ,  H03F2203/45386 ,  H03F2203/45394 ,  H03F2203/45396 ,  H03F2203/45621 ,  H03F2203/45704 ,  H03G1/0029 ,  H04N21/4382

Abstract: A low-noise amplifier includes a first resistor that receives a first signal of a differential input signal, and a second resistor that receives a second signal of the differential input signal. The amplifier includes a first transconductance device coupled to the first resistor that provides a first signal of a differential output signal, and a second transconductance device coupled to the second resistor, that provides a second signal of the differential output signal. The receiver also includes a first capacitor coupled between the first resistor input and a control electrode on the second transconductance device, and a second capacitor coupled between the second resistor input and a control electrode on the first transconductance device. The low-noise amplifier can include additional gain stages.

Abstract translation: 低噪声放大器包括接收差分输入信号的第一信号的第一电阻器和接收差分输入信号的第二信号的第二电阻器。 放大器包括耦合到第一电阻器的第一跨导器件，其提供差分输出信号的第一信号，以及耦合到第二电阻器的第二跨导器件，其提供差分输出信号的第二信号。 接收器还包括耦合在第一电阻器输入端和第二跨导器件上的控制电极之间的第一电容器，以及耦合在第二电阻器输入端和第一跨导器件上的控制电极之间的第二电容器。 低噪声放大器可以包括额外的增益级。

公开(公告)号：US20110158339A1

公开(公告)日：2011-06-30

申请号：US12650166

申请日：2009-12-30

Applicant: George Tyson Tuttle ,  Younes Djadi ,  Russell Croman ,  Scott Thomas Haban ,  Javier Elenes ,  Lokesh Duraiappah

Inventor： George Tyson Tuttle ,  Younes Djadi ,  Russell Croman ,  Scott Thomas Haban ,  Javier Elenes ,  Lokesh Duraiappah

IPC: H04L27/00 ,  H04L27/06 ,  H04B7/02

CPC classification number: H04B7/0682 ,  H04L25/03866

Abstract: In an embodiment, a tuner circuit includes an inter-chip receiver circuit configurable to couple to a first inter-chip communication link to receive a first data stream and includes an analog-to-digital converter configured to convert a radio frequency signal into a digital version of the radio frequency signal. The tuner circuit further includes a digital signal processor coupled to the inter-chip receiver circuit and the analog-to-digital converter. The digital signal processor is configurable to generate an output signal related to at least one of the first data stream and the digital version of the radio frequency signal based on a selected operating mode.

Abstract translation: 在一个实施例中，调谐器电路包括可配置为耦合到第一芯片间通信链路以接收第一数据流的芯片间接收器电路，并且包括被配置为将射频信号转换为数字 版本的射频信号。 调谐器电路还包括耦合到芯片间接收器电路和模数转换器的数字信号处理器。 数字信号处理器可配置为基于所选择的操作模式生成与第一数据流和数字版本的数字版本中的至少一个相关的输出信号。

公开(公告)号：US20100266068A1

公开(公告)日：2010-10-21

申请号：US12386537

申请日：2009-04-20

Applicant: Lokesh K. Duraiappah ,  Dana J. Taipale ,  Wade R. Gillham ,  George Tyson Tuttle

Inventor： Lokesh K. Duraiappah ,  Dana J. Taipale ,  Wade R. Gillham ,  George Tyson Tuttle

IPC: H04L27/22

CPC classification number: H04L27/14 ,  H04L27/0008 ,  H04L27/22

Abstract: Low-IF terrestrial data receivers and related communication systems and methods are disclosed that provide efficient solutions for reception of data services in FM broadcast channels. In particular, systems and methods are provided for data service information modulated on a 67.65 kHz sub-carrier, for example, using QPSK modulation. Intermediate data service information is output by the data receiver, and this intermediate data service information takes the form of demodulated digital I/Q signals provided through a digital interface of the data receiver. As such, partial digital signal processing is provided by the data receiver and the remaining digital processing is provided by a host processor.

Abstract translation: 公开了低IF地面数据接收机和相关通信系统和方法，其提供用于在FM广播信道中接收数据业务的有效解决方案。 具体地，提供了用于例如使用QPSK调制在67.65KHz子载波上调制的数据业务信息的系统和方法。 中间数据业务信息由数据接收机输出，该中间数据业务信息采用通过数据接收机的数字接口提供的解调数字I / Q信号的形式。 这样，部分数字信号处理由数据接收机提供，其余的数字处理由主处理器提供。

公开(公告)号：US07046793B2

公开(公告)日：2006-05-16

申请号：US10879956

申请日：2004-06-29

Applicant: George Tyson Tuttle ,  Jeffrey W. Scott ,  Navdeep S. Sooch ,  David R. Welland

Inventor： George Tyson Tuttle ,  Jeffrey W. Scott ,  Navdeep S. Sooch ,  David R. Welland

IPC: H04M1/00 ,  H04M9/00

CPC classification number: H04L25/0266 ,  H04L7/033 ,  H04L25/06 ,  H04M11/06 ,  H04M19/001

Abstract: A digital direct access arrangement (DAA) circuitry may be used to terminate the telephone connections at the user's end to provide a communication path for signals to and from the phone lines. Briefly described, a means for providing a proper hookswitch transition for a variety of international phone standards is provided. The invention may also be utilized with means for transmitting and receiving a signal across a capacitive isolation barrier. More particularly, a DAA circuitry may be utilized which satisfies many or all hookswitch transition standards without the use of additional discrete devices. The hookswitch transition standards may be satisfied by ramping down the current flowing through the hookswitch prior to transitioning the hookswitch state. In this manner the hookswitch current change as a function of time (di/dt) may be decreased. Thus, the current through the hookswitch may be actively controlled prior to switching the hookswitch from an off-hook condition to an on-hook condition. By controlling the current drawn from the phone lines through the hookswitch, the maximum voltage seen at the phone company exchange may be decreased.

Abstract translation: 可以使用数字直接访问布置（DAA）电路来终止用户端的电话连接，以提供用于到达和来自电话线的信号的通信路径。 简而言之，提供了一种用于为各种国际电话标准提供适当的钩开关转换的装置。 本发明还可以用于在电容隔离屏障上传输和接收信号的装置。 更具体地，可以使用满足许多或所有钩开关转换标准的DAA电路，而不使用额外的分立器件。 钩子开关转换标准可以通过在转换钩形开关状态之前降低流过钩形开关的电流来实现。 以这种方式，作为时间（di / dt）的函数的钩开关电流变化可能会减小。 因此，在将钩形开关从摘机状态切换到挂机状态之前，可以主动地控制通过钩形开关的电流。 通过控制通过钩形开关从电话线吸取的电流，电话公司交换所看到的最大电压可能会降低。