METHOD AND APPARATUS FOR REDUCING SIGNAL PROCESSING REQUIREMENTS FOR TRANSMITTING PACKET-BASED DATA
    3.
    发明申请
    METHOD AND APPARATUS FOR REDUCING SIGNAL PROCESSING REQUIREMENTS FOR TRANSMITTING PACKET-BASED DATA 审中-公开
    用于减少发送基于分组数据的信号处理要求的方法和装置

    公开(公告)号:US20090046769A1

    公开(公告)日:2009-02-19

    申请号:US12180076

    申请日:2008-07-25

    IPC分类号: H04B1/38

    摘要: A modem and method for operating same. A receiver circuit of the modem is coupled to receive a continuous analog signal from a communication channel. This analog signal includes both packet and idle information. The receiver circuit monitors the analog signal to detect the presence of idle information. Upon detecting idle information, the receiver circuit enters a standby mode in which the processing requirements of the receiver circuit are reduced. A burst mode protocol is also provided, in which packets of digital information are modulated by a transmitter circuit the modem, thereby converting the packets of digital information into analog signal bursts of discrete duration. These analog signal bursts are transmitted from the transmitter circuit to a telephone line. However, the transmitter circuit does not generate any signals between the analog signal bursts. A receiver circuit monitors the telephone line to detect the analog signal bursts. Upon detecting the presence of the analog signal bursts on the telephone line, the receiver circuit demodulates the analog signal bursts using full processing capabilities of the receiver circuit. However, upon detecting the absence of the analog signal bursts on the telephone line, the demodulating function of the receiver circuit is disabled. The burst mode protocol enables multi-drop and multi-cast operation, as well as reducing required DSP resources.

    摘要翻译: 调制解调器和操作方法。 调制解调器的接收机电路被耦合以从通信信道接收连续的模拟信号。 该模拟信号包括分组和空闲信息。 接收器电路监视模拟信号以检测空闲信息的存在。 在检测到空闲信息时,接收机电路进入待机模式,其中接收机电路的处理要求降低。 还提供了突发模式协议,其中数字信息的分组由调制解调器的发射机电路调制,从而将数字信息的分组转换为离散持续时间的模拟信号突发。 这些模拟信号突发从发射机电路传输到电话线。 然而,发射机电路在模拟信号脉冲串之间不产生任何信号。 接收机电路监视电话线路以检测模拟信号脉冲串。 当检测到电话线路上存在模拟信号脉冲串时,接收机电路使用接收机电路的全部处理能力解调模拟信号脉冲串。 然而,当检测到电话线上没有模拟信号脉冲串时,接收机电路的解调功能被禁用。 突发模式协议允许多点和多播操作,以及减少所需的DSP资源。

    Method and apparatus for reducing signal processing requirements for transmitting packet-based data with a modem
    4.
    发明授权
    Method and apparatus for reducing signal processing requirements for transmitting packet-based data with a modem 有权
    用于减少用调制解调器发送基于分组的数据的信号处理要求的方法和装置

    公开(公告)号:US06304596B1

    公开(公告)日:2001-10-16

    申请号:US09448221

    申请日:1999-11-23

    IPC分类号: H04B138

    摘要: A modem and method for operating same. A receiver circuit of the modem is coupled to receive a continuous analog signal from a communication channel. This analog signal includes both packet and idle information. The receiver circuit monitors the analog signal to detect the presence of idle information. Upon detecting idle information, the receiver circuit enters a standby mode in which the processing requirements of the receiver circuit are reduced. A burst mode protocol is also provided, in which packets of digital information are modulated by a transmitter circuit of the modem, thereby converting the packets of digital information into analog signal bursts of discrete duration. These analog signal bursts are transmitted from the transmitter circuit to a telephone line. However, the transmitter circuit does not generate any signals between the analog signal bursts. A receiver circuit monitors the telephone line to detect the analog signal bursts. Upon detecting the presence of the analog signal bursts on the telephone line, the receiver circuit demodulates the analog signal bursts using full processing capabilities of the receiver circuit. However, upon detecting the absence of the analog signal bursts on the telephone line, the demodulating function of the receiver circuit is disabled. The burst mode protocol enables multi-drop and multi-cast operation, as well as reducing required DSP resources.

    摘要翻译: 调制解调器和操作方法。 调制解调器的接收机电路被耦合以从通信信道接收连续的模拟信号。 该模拟信号包括分组和空闲信息。 接收器电路监视模拟信号以检测空闲信息的存在。 在检测到空闲信息时,接收机电路进入待机模式,其中接收机电路的处理要求降低。 还提供了突发模式协议,其中数字信息的分组由调制解调器的发射机电路调制,从而将数字信息分组转换为离散持续时间的模拟信号突发。 这些模拟信号突发从发射机电路传输到电话线。 然而,发射机电路在模拟信号脉冲串之间不产生任何信号。 接收机电路监视电话线路以检测模拟信号脉冲串。 当检测到电话线路上存在模拟信号脉冲串时,接收机电路使用接收机电路的全部处理能力解调模拟信号脉冲串。 然而,当检测到电话线上没有模拟信号脉冲串时,接收机电路的解调功能被禁用。 突发模式协议允许多点和多播操作,以及减少所需的DSP资源。

    Method and apparatus for reducing signal processing requirements for transmitting packet-based data with a modem
    7.
    发明授权
    Method and apparatus for reducing signal processing requirements for transmitting packet-based data with a modem 有权
    用于减少用调制解调器发送基于分组的数据的信号处理要求的方法和装置

    公开(公告)号:US06445731B1

    公开(公告)日:2002-09-03

    申请号:US09472764

    申请日:1999-12-27

    IPC分类号: H04B138

    摘要: A modem and method for operating same. A receiver circuit of the modem is coupled to receive a continuous analog signal from a communication channel. This analog signal includes both packet and idle information. The receiver circuit monitors the analog signal to detect the presence of idle information. Upon detecting idle information, the receiver circuit enters a standby mode in which the processing requirements of the receiver circuit are reduced. A burst mode protocol is also provided, in which packets of digital information are modulated by a transmitter circuit of the modem, thereby converting the packets of digital information into analog signal bursts of discrete duration. These analog signal bursts are transmitted from the transmitter circuit to a telephone line. However, the transmitter circuit does not generate any signals between the analog signal bursts. A receiver circuit monitors the telephone line to detect the analog signal bursts. Upon detecting the presence of the analog signal bursts on the telephone line, the receiver circuit demodulates the analog signal bursts using full processing capabilities of the receiver circuit. However, upon detecting the absence of the analog signal bursts on the telephone line, the demodulating function of the receiver circuit is disabled. The burst mode protocol enables multi-drop and multi-cast operation, as well as reducing required DSP resources.

    摘要翻译: 调制解调器和操作方法。 调制解调器的接收机电路被耦合以从通信信道接收连续的模拟信号。 该模拟信号包括分组和空闲信息。 接收器电路监视模拟信号以检测空闲信息的存在。 在检测到空闲信息时,接收机电路进入待机模式,其中接收机电路的处理要求降低。 还提供了突发模式协议,其中数字信息的分组由调制解调器的发射机电路调制,从而将数字信息分组转换为离散持续时间的模拟信号突发。 这些模拟信号突发从发射机电路传输到电话线。 然而,发射机电路在模拟信号脉冲串之间不产生任何信号。 接收机电路监视电话线路以检测模拟信号脉冲串。 当检测到电话线路上存在模拟信号脉冲串时,接收机电路使用接收机电路的全部处理能力解调模拟信号脉冲串。 然而,当检测到电话线上没有模拟信号脉冲串时,接收机电路的解调功能被禁用。 突发模式协议允许多点和多播操作,以及减少所需的DSP资源。

    Programmable identity of I and Q channels
    9.
    发明授权
    Programmable identity of I and Q channels 有权
    I和Q通道的可编程标识

    公开(公告)号:US07362694B2

    公开(公告)日:2008-04-22

    申请号:US10846052

    申请日:2004-05-14

    IPC分类号: H04J11/00 H04B7/216 H03H7/30

    CPC分类号: H03D3/007

    摘要: A multiplexing scheme to select either an I component or a Q component for input to I channel and Q channel inputs of a baseband receiver. The selection of which of the I or Q component to place on the I channel input and which other to place on the Q channel input is based on, there being a correct relationship of the I and Q components received from a RF processing stage of a wireless communication device or if the I and Q components have incorrect relationship because they are interchanged.

    摘要翻译: 选择I分量或Q分量以用于输入到基带接收机的I信道和Q信道输入的复用方案。 选择放置在I信道输入上的I或Q分量中的哪一个,以及Q信道输入上的另一个是基于从RF信号输入的RF处理级接收到的I和Q分量的正确关系 无线通信设备,或者I和Q组件因为互换而具有不正确的关系。

    Digital differential analyzer data synchronizer
    10.
    发明授权
    Digital differential analyzer data synchronizer 失效
    数字差分分析仪数据同步器

    公开(公告)号:US06269136B1

    公开(公告)日:2001-07-31

    申请号:US09017224

    申请日:1998-02-02

    IPC分类号: H04L700

    摘要: A digital differential analyzer data synchronizer receives data at a first clock rate and synchronizes the data to a second clock rate. The two clock rates are related by a ratio of two integers, but have a variable phase relationship. The synchronizer places incoming data into a series of registers at the first clock rate. A digital differential analyzer functions to generate a synchronization signal having a frequency proportional to a ratio of the first clock rate and the second clock rate. A multiplexer is utilized for sequentially reading the plurality of registers at a rate corresponding to the frequency of the synchronization signal.

    摘要翻译: 数字差分分析仪数据同步器以第一时钟速率接收数据,并将数据同步到第二时钟速率。 两个时钟速率通过两个整数的比率相关,但是具有可变的相位关系。 同步器以第一个时钟速率将输入数据放入一系列寄存器。 数字差分分析器用于产生具有与第一时钟速率和第二时钟速率的比率成比例的频率的同步信号。 利用多路复用器以与同步信号的频率相对应的速率依次读取多个寄存器。