公开(公告)号：JP2003188755A

公开(公告)日：2003-07-04

申请号：JP2002301377

申请日：2002-10-16

Applicant: ST MICROELECTRONICS NV

Inventor： CONTI PATRICK

IPC: H04B1/707 ,  H04B1/30 ,  H04L25/06 ,  H04L27/22

Abstract: PROBLEM TO BE SOLVED: To remove static and dynamic DC voltage offsets in a direct- conversion receiver. SOLUTION: The direct-conversion receiver is provided with an analog stage for receiving an incident signal from a transmission channel, mixers and programmable-gain amplifiers. The receiver is further provided with at least one compensation module having an input terminal and an output terminal respectively connected between the output of the mixers and the input of the programmable-gain amplifiers for compensating for both a static DC voltage offset and a possible dynamic DC voltage offset of the analog stage. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2002185401A

公开(公告)日：2002-06-28

申请号：JP2001324850

申请日：2001-10-23

Applicant: ST MICROELECTRONICS NV

Inventor： CONTI PATRICK ,  BERENS FRIEDBERT

IPC: H04J13/00 ,  H04B7/005 ,  H04B7/26

Abstract: PROBLEM TO BE SOLVED: To optimize the efficiency of transmission power without affecting the quality of a service by controlling the power of a remote terminal equipment or particularly a cellular mobile telephone. SOLUTION: The cellular mobile telephone comprises at least two power amplifiers each having a common operating region. If one of the amplifiers must be disconnected, the best time of switching is specified based on a predetermined transmission interrupting reference. The presently selected amplifier is used and its power regulation is continued until the switching time arrives. When the time arrives, the transmission is once interrupted, and then another amplifier is switched on.

公开(公告)号：DE60111056T2

公开(公告)日：2006-05-04

申请号：DE60111056

申请日：2001-10-26

Applicant: ST MICROELECTRONICS NV

Inventor： CONTI PATRICK

IPC: H04B1/30 ,  H04B1/707 ,  H04L25/06 ,  H04L27/22

Abstract: A direct conversion receiver has a compensation module (MDM) envelope (PD2) and alternating signal (PD1) detectors with subtracter (CMP) and sampler (SAH) connected between the input (BE) from a conversion stage and output (STR) to a programmable gain amplifier (PGA) to create a compensation signal (SCP)

公开(公告)号：DE60203104D1

公开(公告)日：2005-04-07

申请号：DE60203104

申请日：2002-06-26

Applicant: ST MICROELECTRONICS NV

Inventor： CONTI PATRICK

IPC: H03K17/76 ,  H04B1/18 ,  H04B1/40 ,  H04B1/48 ,  H04B1/44

Abstract: A mobile phone radio frequency switching system selects among transmit (TX) and receive (RX) channels for different services (GSM, DCS, PCS) and frequency bands using an integrated circuit with PIN diodes (DPNi) connected to the input / output terminal and lateral PNP control transistors (Qi) with base connected to a control input (Eci) and collector to the diode anodes.

公开(公告)号：DE60035598T2

公开(公告)日：2008-06-19

申请号：DE60035598

申请日：2000-10-27

Applicant: ST MICROELECTRONICS NV

Inventor： CONTI PATRICK ,  BERENS FRIEDBERT

IPC: H04B7/005 ,  H04J13/00 ,  H03G3/30 ,  H04B7/26

Abstract: The transmission power control method has the transmission power adjusted as a function of the power information received. The transmitter has two power amplifiers (PA1,PA2) which are individually selectable together covering the total power plane. Each amplifier covers a different power zone, and is selected as a function of transmission efficiency. There is a transmission interrupt criteria, after which the amplifiers are reset.

公开(公告)号：DE60035598D1

公开(公告)日：2007-08-30

申请号：DE60035598

申请日：2000-10-27

Applicant: ST MICROELECTRONICS NV

Inventor： CONTI PATRICK ,  BERENS FRIEDBERT

IPC: H04B7/005 ,  H04J13/00 ,  H03G3/30 ,  H04B7/26

Abstract: The transmission power control method has the transmission power adjusted as a function of the power information received. The transmitter has two power amplifiers (PA1,PA2) which are individually selectable together covering the total power plane. Each amplifier covers a different power zone, and is selected as a function of transmission efficiency. There is a transmission interrupt criteria, after which the amplifiers are reset.

公开(公告)号：DE60111056D1

公开(公告)日：2005-06-30

申请号：DE60111056

申请日：2001-10-26

Applicant: ST MICROELECTRONICS NV

Inventor： CONTI PATRICK

IPC: H04B1/707 ,  H04B1/30 ,  H04L25/06 ,  H04L27/22

Abstract: A direct conversion receiver has a compensation module (MDM) envelope (PD2) and alternating signal (PD1) detectors with subtracter (CMP) and sampler (SAH) connected between the input (BE) from a conversion stage and output (STR) to a programmable gain amplifier (PGA) to create a compensation signal (SCP)