Digital access arrangement circuitry and method for connecting to phone lines having a DC holding circuit with programmable current limiting
    1.
    发明申请
    Digital access arrangement circuitry and method for connecting to phone lines having a DC holding circuit with programmable current limiting 失效
    用于连接到具有可编程限流的DC保持电路的电话线路的数字接入配置电路和方法

    公开(公告)号:US20050100104A1

    公开(公告)日:2005-05-12

    申请号:US10679013

    申请日:2003-10-03

    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。

    Transceiver having multiple signal processing modes of operation
    2.
    发明申请
    Transceiver having multiple signal processing modes of operation 有权
    收发器具有多种信号处理操作模式

    公开(公告)号:US20080049817A1

    公开(公告)日:2008-02-28

    申请号:US11824568

    申请日:2007-06-29

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

    Abstract: A transceiver includes a processor, which is adapted to in a transmit mode of the transceiver, form at least part of a transmitter and in a receive mode of the transceiver, form at least part of a receiver. The transceiver may include at least one analog-to-digital converter to provide digital signals to the processor in both the transmit and receive modes of operation; and the transceiver may include at least one digital-to-analog converter to receive digital signals from the processor in the transmit and receive modes of operation. The processor may be fabricated on an integrated circuit with at least one of the analog-to-digital converters and/or with at least one of the digital-to-analog converters.

    Abstract translation: 收发器包括适于处于收发器的发射模式的处理器,形成发射器的至少一部分并且在收发器的接收模式中形成接收器的至少一部分。 收发器可以包括至少一个模拟 - 数字转换器,以在发送和接收操作模式中向处理器提供数字信号; 并且收发器可以包括至少一个数模转换器,以在发送和接收操作模式中从处理器接收数字信号。 处理器可以在与至少一个模数转换器和/或至少一个数模转换器的集成电路上制造。

    Tuning circuitry in a communications device
    3.
    发明申请
    Tuning circuitry in a communications device 有权
    通信设备中的调谐电路

    公开(公告)号:US20070238423A1

    公开(公告)日:2007-10-11

    申请号:US11394451

    申请日:2006-03-31

    CPC classification number: H04B1/0458

    Abstract: A communications device is provided. The communications device includes a first antenna port coupled to a signal line, transmitter circuitry coupled to the signal line and configured to broadcast a radio frequency (RF) output signal across the first antenna port, tuning circuitry coupled to the signal line, and a controller configured to adjust a tuning of the tuning circuitry. The first antenna port, the transmitter circuitry, the tuning circuitry, and the controller are at least partially integrated on the same integrated circuit.

    Abstract translation: 提供通信设备。 通信设备包括耦合到信号线的第一天线端口,耦合到信号线的发射机电路,并且被配置为跨越第一天线端口广播射频(RF)输出信号,耦合到信号线的调谐电路和控制器 被配置为调整调谐电路的调谐。 第一天线端口,发射机电路,调谐电路和控制器至少部分集成在同一集成电路上。

    Transmitter architecture
    4.
    发明申请
    Transmitter architecture 审中-公开
    发射机架构

    公开(公告)号:US20070238421A1

    公开(公告)日:2007-10-11

    申请号:US11394716

    申请日:2006-03-31

    CPC classification number: H03C3/40

    Abstract: A technique includes digitally generating orthogonal modulated signals, each of which has spectral energy that is generally centered at an intermediate frequency. The orthogonal modulated signals are frequency translated to produce translated signals, each of which has spectral energy that is generally centered about a second frequency that is higher than the intermediate frequency. The translated signals are combined to generate a modulated signal.

    Abstract translation: 一种技术包括数字生成正交调制信号,每个信号具有通常以中间频率为中心的频谱能量。 正交调制信号被频率转换以产生转换的信号,每个信号具有通常以高于中频的第二频率为中心的频谱能量。 经翻译的信号被组合以产生调制信号。

    Dual antenna communications device
    5.
    发明申请
    Dual antenna communications device 有权
    双天线通信设备

    公开(公告)号:US20070232248A1

    公开(公告)日:2007-10-04

    申请号:US11396132

    申请日:2006-03-31

    CPC classification number: H04B1/04 H04B17/21

    Abstract: A communications device is provided. The communications device includes first output stage circuitry configured to generate a first radio frequency (RF) output signal in response to receiving an RF input signal, a first antenna port configured to couple to a first antenna and configured receive the first RF output signal from the first output stage circuitry, second output stage circuitry configured to generate a second RF output signal in response to receiving the first RF output signal, and a second antenna port configured to couple to a second antenna and configured to receive the second RF output signal from the second output stage circuitry. The first output stage circuitry, the first antenna port, the second output stage circuitry, and the second antenna port are at least partially integrated on the same integrated circuit.

    Abstract translation: 提供通信设备。 通信设备包括第一输出级电路,其被配置为响应于接收到RF输入信号而产生第一射频(RF)输出信号,第一天线端口被配置为耦合到第一天线并被配置为从第一射频 第一输出级电路,第二输出级电路,被配置为响应于接收到所述第一RF输出信号而产生第二RF输出信号;以及第二天线端口,被配置为耦合到第二天线并被配置为从所述第二RF输出信号接收所述第二RF输出信号 第二输出级电路。 第一输出级电路,第一天线端口,第二输出级电路和第二天线端口至少部分地集成在同一集成电路上。

    Calibration system and method in a communications device
    7.
    发明申请
    Calibration system and method in a communications device 有权
    通信设备中的校准系统和方法

    公开(公告)号:US20070232236A1

    公开(公告)日:2007-10-04

    申请号:US11394624

    申请日:2006-03-31

    CPC classification number: H04B5/00 H04B5/0012 H04B5/0075 H04B17/14

    Abstract: A radio frequency (RF) communications device is provided. The RF communications device includes transmitter circuitry configured to generate a calibration signal on a signal line coupled to an antenna port in a calibration mode of operation and an RF output signal for broadcast across the antenna port subsequent to the calibration mode of operation, tuning circuitry coupled to the signal line and configured to receive the calibration signal, and a controller configured to adjust a signal level of the calibration signal generated by the transmitter circuitry and a tuning of the tuning circuitry during the calibration mode of operation. The transmitter circuitry, the tuning circuitry, and the controller are at least partially integrated on the same integrated circuit.

    Abstract translation: 提供射频(RF)通信设备。 RF通信设备包括发射机电路,被配置为在校准操作模式下在耦合到天线端口的信号线上生成校准信号,并且在校准操作模式之后,通过天线端口广播RF输出信号,调谐电路耦合 信号线并被配置为接收校准信号;以及控制器,被配置为调整由发射机电路产生的校准信号的信号电平以及在校准操作模式期间的调谐电路的调谐。 发射机电路,调谐电路和控制器至少部分地集成在同一集成电路上。

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