公开(公告)号：US20080261650A1

公开(公告)日：2008-10-23

申请号：US12214619

申请日：2008-06-20

申请人： Pramote Piriyapoksombut ,  Gordon Olsen ,  Joel King ,  Serge Francois Drogi ,  Hans Dropmann ,  Vikas Vinayak

发明人： Pramote Piriyapoksombut ,  Gordon Olsen ,  Joel King ,  Serge Francois Drogi ,  Hans Dropmann ,  Vikas Vinayak

IPC分类号： H04M1/00 ,  H04B1/40 ,  H04B1/04

CPC分类号： H04B1/0003 ,  H04B1/40

摘要： A radio system includes a radio frequency (RF) integrated circuit (IC), a baseband digital signal processing (DSP) IC, and a serial digital interface coupling data there-between. In one embodiment of the invention, the RF IC has an input receiver to receive a serial digital transmission bit stream from a digital signal processing integrated circuit; a data recoverer coupled to the input receiver to recover digital data bits from the serial digital transmission bit stream; a low pass filter coupled to the data recoverer convert the digital data bits into an analog transmission signal; a mixer coupled to the low pass filter to up-convert the analog transmission signal from a baseband frequency to a second selectable carrier frequency as a transmit radio frequency signal; and an amplifier coupled to the mixer and an antenna, the amplifier to amplify the transmit radio frequency signal for broadcast over the antenna.

摘要翻译： 无线电系统包括射频（RF）集成电路（IC），基带数字信号处理（DSP）IC以及耦合数据的串行数字接口。 在本发明的一个实施例中，RF IC具有用于从数字信号处理集成电路接收串行数字传输比特流的输入接收器; 耦合到输入接收器的数据恢复器，用于从串行数字传输比特流中恢复数字数据位; 耦合到数据的低通滤波器将数字数据位转换成模拟传输信号; 耦合到低通滤波器的混频器，用于将模拟传输信号从基带频率上升转换为第二可选载波频率作为发射射频信号; 以及耦合到所述混频器和天线的放大器，所述放大器放大所述发射射频信号以在所述天线上广播。

公开(公告)号：US06339361B1

公开(公告)日：2002-01-15

申请号：US09328927

申请日：1999-06-09

申请人： Sabah Khesbak ,  Madhukar Reddy ,  Pramote Piriyapoksombut ,  Trevor Robinson

发明人： Sabah Khesbak ,  Madhukar Reddy ,  Pramote Piriyapoksombut ,  Trevor Robinson

IPC分类号： H03G310

CPC分类号： H03G3/3042 ,  H03F1/0261 ,  H03F1/302

摘要： A driver system for a power amplifier in a wireless communication handset. The driver system includes a driver and a current source. The driver drives the power amplifier at a level of linearity determined responsive to a variable input bias current provided by the current source. The current source varies the bias current, and thus the degree of linearity provided, responsive to the desired output power of the handset.

摘要翻译： 一种用于无线通信手机中的功率放大器的驱动器系统。 驱动器系统包括驱动器和电流源。 驱动器以响应于由电流源提供的可变输入偏置电流确定的线性度驱动功率放大器。 电流源根据手机所需的输出功率改变偏置电流，从而提供线性度。

公开(公告)号：US20060128347A1

公开(公告)日：2006-06-15

申请号：US11353639

申请日：2006-02-13

申请人： Pramote Piriyapoksombut ,  Gordon Olsen ,  Joel King ,  Serge Drogi ,  Hans Dropmann ,  Vikas Vinayak

发明人： Pramote Piriyapoksombut ,  Gordon Olsen ,  Joel King ,  Serge Drogi ,  Hans Dropmann ,  Vikas Vinayak

IPC分类号： H04B1/28

CPC分类号： H04B1/0003 ,  H04B1/40

摘要： A radio system includes a radio frequency (RF) integrated circuit (IC), a baseband digital signal processing (DSP) IC, and a serial digital interface coupling data there-between. In one embodiment of the invention, the RF IC has an input receiver to receive a serial digital transmission bit stream from a digital signal processing integrated circuit; a data recoverer coupled to the input receiver to recover digital data bits from the serial digital transmission bit stream; a low pass filter coupled to the data recoverer convert the digital data bits into an analog transmission signal; a mixer coupled to the low pass filter to up-convert the analog transmission signal from a baseband frequency to a second selectable carrier frequency as a transmit radio frequency signal; and an amplifier coupled to the mixer and an antenna, the amplifier to amplify the transmit radio frequency signal for broadcast over the antenna.

摘要翻译： 无线电系统包括射频（RF）集成电路（IC），基带数字信号处理（DSP）IC以及耦合数据的串行数字接口。 在本发明的一个实施例中，RF IC具有用于从数字信号处理集成电路接收串行数字传输比特流的输入接收器; 耦合到输入接收器的数据恢复器，用于从串行数字传输比特流中恢复数字数据位; 耦合到数据的低通滤波器将数字数据位转换成模拟传输信号; 耦合到低通滤波器的混频器，用于将模拟传输信号从基带频率上升转换为第二可选载波频率作为发射射频信号; 以及耦合到所述混频器和天线的放大器，所述放大器放大所述发射射频信号以在所述天线上广播。