公开(公告)号：US20040022211A1

公开(公告)日：2004-02-05

申请号：US10606189

申请日：2003-06-25

Applicant: STMicroelectronics N.V.

Inventor： Patrick Conti

IPC: H04B007/00

CPC classification number: H04B1/006 ,  H04B1/005 ,  H04B1/406 ,  H04B1/48

Abstract: A radio-frequency switching device includes first and second radio-frequency channels connected to an input/output terminal. A controllable switching device selects one of the radio-frequency channels in response to a switching control signal. The switching device includes a respective control module connected to each radio-frequency channel. Each control module includes a PIN diode whose cathode is connected to the input/output terminal, and a control transistor whose base is connected to a control input for receiving the switching control signal. A conducting terminal of the control transistor is connected to the anode of the PIN diode.

Abstract translation: 射频切换装置包括连接到输入/输出终端的第一和第二射频信道。 可控切换装置响应于切换控制信号选择射频信道之一。 交换设备包括连接到每个射频信道的相应控制模块。 每个控制模块包括PIN二极管，其阴极连接到输入/输出端子，以及控制晶体管，其基极连接到用于接收开关控制信号的控制输入端。 控制晶体管的导电端子连接到PIN二极管的阳极。

公开(公告)号：US20030087625A1

公开(公告)日：2003-05-08

申请号：US10281052

申请日：2002-10-25

Applicant: STMicroelectronics N.V.

Inventor： Patrick Conti

IPC: H04B001/26

CPC classification number: H04B1/30 ,  H04L25/062 ,  H04L27/22

Abstract: A direct-conversion receiver includes an analog stage for receiving an incident signal from a transmission channel, mixers and programmable-gain amplifiers. The receiver further includes at least one compensation module having input and output terminals respectively connected between the output of the mixers and the input of the programmable-gain amplifiers. The compensation module compensates for both a static DC voltage offset and a possible dynamic DC voltage offset of the analog stage.

Abstract translation: 直接转换接收机包括用于从传输信道接收入射信号的模拟级，混频器和可编程增益放大器。 接收器还包括至少一个补偿模块，其具有分别连接在混频器的输出端和可编程增益放大器的输入端之间的输入和输出端子。 补偿模块补偿模拟级的静态直流电压偏移和可能的动态直流电压偏移。

公开(公告)号：US20020052215A1

公开(公告)日：2002-05-02

申请号：US10000612

申请日：2001-10-24

Applicant: STMicroelectronics N.V.

Inventor： Patrick Conti ,  Friedbert Berens

IPC: H04B007/00

CPC classification number: H04W52/52

Abstract: A cellular telephone includes a plurality of power amplifiers having a common operating region. If one of the amplifiers has to be deselected, a desired moment for the switching to another amplifier is defined based upon a predetermined transmission interrupt criterion. The power continues to be adjusted with the currently selected amplifier until the instant of switch over. Switching to the other amplifier may then be performed after the transmission has been interrupted.

Abstract translation: 蜂窝电话包括具有公共操作区域的多个功率放大器。 如果必须取消其中一个放大器，则基于预定的传输中断标准来定义用于切换到另一放大器的所需时刻。 电源继续使用当前选择的放大器进行调整，直到切换为止。 然后可以在传输中断之后切换到另一个放大器。