公开(公告)号：JP2006033858A

公开(公告)日：2006-02-02

申请号：JP2005207468

申请日：2005-07-15

Applicant: Infineon Technologies Ag ,  インフィネオン テクノロジーズ アクチエンゲゼルシャフト

Inventor： KRUG ERWIN ,  PFLAUM BERND

IPC: H04B1/26 ,  H04B1/16 ,  H04N5/44

CPC classification number: H03L7/0898 ,  H03D7/1408 ,  H03D7/1433 ,  H03D7/1458 ,  H03D2200/0025 ,  H03G3/3068 ,  H03J3/32 ,  H03L7/093 ,  H03L7/107 ,  H04N5/4401 ,  H04N5/4446 ,  H04N21/41407 ,  H04N21/42607

Abstract: PROBLEM TO BE SOLVED: To provide a receiver structure, especially for digital television broadcasting service.
SOLUTION: This structure has at least one first frequency translation unit (2) which has a signal input part, a local oscillator input unit, and an output unit. At least one first frequency translation unit (2) is designed so that a signal applied to the input side can be changed into an intermediate frequency. Further, it has a first amplifier (6a). This first amplifier is designed to comprise a gain for guaranteeing signal level attenuation of a filter (7) connected to the downstream of the first amplifier (6a). The first amplifier (6a) is connected with an output portion of the frequency translation unit (2). Further, it has an intermediate frequency amplifier (8) comprising a variable gain coefficient. This intermediate frequency amplifier is connected with the first amplifier (6). At least one first frequency translation unit (2) and the first amplifier (6a) are formed in a common semiconductor body (1).
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供接收机结构，特别是用于数字电视广播业务。 解决方案：该结构具有至少一个具有信号输入部分，本地振荡器输入单元和输出单元的第一频率转换单元（2）。 至少一个第一频率转换单元（2）被设计成使得施加到输入侧的信号可以变成中频。 此外，它具有第一放大器（6a）。 该第一放大器被设计为包括用于保证连接到第一放大器（6a）的下游的滤波器（7）的信号电平衰减的增益。 第一放大器（6a）与频率转换单元（2）的输出部分连接。 此外，它具有包括可变增益系数的中频放大器（8）。 该中频放大器与第一放大器（6）连接。 至少一个第一频率转换单元（2）和第一放大器（6a）形成在公共半导体本体（1）中。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：WO02078200A2

公开(公告)日：2002-10-03

申请号：PCT/DE0201098

申请日：2002-03-26

Applicant: INFINEON TECHNOLOGIES AG ,  MUSCHALLIK CLAUS ,  PFLAUM BERND ,  SEDLMAIER ROBERT

Inventor： MUSCHALLIK CLAUS ,  PFLAUM BERND ,  SEDLMAIER ROBERT

IPC: H04L27/36 ,  H04B1/30 ,  H04B1/40 ,  H04J11/00 ,  H04L27/26 ,  H04L27/38

CPC classification number: H04B1/30 ,  H04B1/40 ,  H04L27/2602

Abstract: The invention relates to a transceiver comprising a receiver branch (1) and a transmitter branch (2), each being configured for conducting complex signals (I, Q), a control device (26) that controls a switch (8), by means of which either a phase locked loop (PLL) (30) is connected to frequency converters (11 to 14) that are provided on the transmitter and receiver sides for supplying a common carrier frequency, or one PLL (30, 40) that operates independently is provided for the respective transmitter and receiver branches (1, 2). It is therefore possible that the transmitter operates, for example, with a direct conversion, whilst the receiver can operate for example on the principle of a low intermediate frequency. The invention is suitable for OFDM multi-carrier systems.

Abstract translation: 它是设有接收分支（1）和一个传输支路（2）发送和接收单元，其分别形成有用于引导复数信号（I，Q）中，用驱动开关（8）的控制装置（26）， 与任一锁相环（30），切换到用于提供用于发送和接收支路的公共载波频率或一个各自独立地操作PLL（30，40）发送和接收侧提供频率转换器（11〜14）（1，2）被设置 ， 这使得，例如，发射机工作直接转换，而接收器，例如，具有低中频原则工作。 本发明适用于OFDM的多载波系统。

公开(公告)号：WO2004077492A3

公开(公告)日：2004-11-25

申请号：PCT/DE2004000370

申请日：2004-02-27

Applicant: INFINEON TECHNOLOGIES AG ,  FISCHER FRANK ,  KLEIN HORST ,  KRUG ERWIN ,  PFLAUM BERND

Inventor： FISCHER FRANK ,  KLEIN HORST ,  KRUG ERWIN ,  PFLAUM BERND

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

CPC classification number: H03G3/001 ,  H03G3/3068

Abstract: The invention relates to a circuit consisting of two regulatable amplification devices (DA, AA), the signal output (2) of the first amplification device (DA) being connected to the signal input (4) of the second amplification device (AA), and the first amplification device (DA) comprising a digital input (3) for regulating the amplification thereof and the second amplification device (AA) comprising an input (5) for the same purpose. According to the invention, the input (5) for regulating the amplification of the second amplification device (AA) is connected to the input (3) for regulating the amplification of the first amplification device (DA) by a specific means, in such a way that a change in the amplification of the second amplification device (AA) in one direction is caused by a change in the amplification of the first amplification device (DA) in the opposite direction, by means of regulation, such that the entire amplification remains essentially the same.

Abstract translation: 两个可调放大设备（DA，AA），其中，所述信号输出端（2）连接至所述第一放大装置（DA）到所述第二放大装置（AA），其中，所述第一放大装置（DA）包括数字输入的信号输入端（4）的电路装置（3 ）用于控制其增益，并且第二放大装置（AA）具有用于控制其增益的输入（5）。 输入端（5），以获得所述第二放大装置（AA）的控制被连接到输入端（3），用于控制所述第一放大装置（DA）的通过的装置的增益，使得在所述第二放大装置（AA）的在一个方向上的增益中的变化 通过由控制引起的第一放大装置（DA）的增益改变以相反方向实现，使得总体增益保持基本相同。

公开(公告)号：DE10308923A1

公开(公告)日：2004-09-16

申请号：DE10308923

申请日：2003-02-28

Applicant: INFINEON TECHNOLOGIES AG

Inventor： KRUG ERWIN ,  PFLAUM BERND ,  FISCHER FRANK ,  KLEIN HORST

IPC: H03G3/00 ,  H03G3/30 ,  H03G1/04

Abstract: A circuit arrangement includes two adjustable amplification devices where the signal output of the first amplification device is connected to the signal input of the second amplification device. The first amplification device has a digital input for controlling its gain and the second amplification device has an input for controlling its gain. The input for gain control in the second amplification device is connected to the input for controlling the gain of the first amplification device via a means such that a change in the gain of the second amplification device in one direction is effected by a change in gain, brought about by means of the control, in the first amplification device in the opposite direction such that the total gain remains essentially the same.

公开(公告)号：DE50203203D1

公开(公告)日：2005-06-30

申请号：DE50203203

申请日：2002-03-26

Applicant: INFINEON TECHNOLOGIES AG

Inventor： MUSCHALLIK CLAUS ,  PFLAUM BERND ,  SEDLMAIER ROBERT

IPC: H04L27/36 ,  H04B1/30 ,  H04B1/40 ,  H04J11/00 ,  H04L27/26 ,  H04L27/38

Abstract: A transmitting and receiving unit includes a receiving branch and a transmitting branch that are in each case constructed for conducting complex signals, with a control device that drives a switch by which either a phase-locked loop is switched through to frequency converters provided at the transmitting and receiving end, for providing a common carrier frequency, or in each case an independently operating PLL is provided for the transmitting and receiving branch. Such a configuration enables the transmitter, for example, to operate with direct conversion whereas the receiver can operate, for example, on the low IF principle. The invention is suitable for OFDM multi-carrier systems.

公开(公告)号：DE19929178C2

公开(公告)日：2002-10-24

申请号：DE19929178

申请日：1999-06-25

Applicant: INFINEON TECHNOLOGIES AG

Inventor： MUSCHALLIK CLAUS ,  PFLAUM BERND ,  LANG HEINZ

IPC: H03L7/093 ,  H03J5/02 ,  H03J5/24 ,  H03L7/089 ,  H03L7/18 ,  H03L7/183 ,  H04L27/00 ,  H04L27/26 ,  H04N5/44 ,  H04N5/455 ,  H03L7/085 ,  H03J5/14

Abstract: A phase locked loop system for tuning the reception frequency of a receiver for digitally modulated received signals and analog-modulated received signals has at least one voltage controlled oscillator for producing an oscillator signal for a reception frequency tuning. A first frequency divider is provided for dividing the frequency of the oscillator signal to a nominal comparison frequency as a function of a receiving channel selection signal. A second frequency divider is provided for dividing a reference frequency as a function of a reception mode switching signal. A phase comparison circuit is provided for comparing the signals supplied by the frequency dividers in order to produce a tuning voltage for the voltage controlled oscillator wherein the gain of the phase comparison circuit is adjustable in order to optimize the phase noise.

公开(公告)号：DE502004010613D1

公开(公告)日：2010-02-25

申请号：DE502004010613

申请日：2004-02-27

Applicant: INFINEON TECHNOLOGIES AG

Inventor： FISCHER FRANK ,  KLEIN HORST ,  KRUG ERWIN ,  PFLAUM BERND

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

Abstract: A circuit arrangement includes two adjustable amplification devices where the signal output of the first amplification device is connected to the signal input of the second amplification device. The first amplification device has a digital input for controlling its gain and the second amplification device has an input for controlling its gain. The input for gain control in the second amplification device is connected to the input for controlling the gain of the first amplification device via a means such that a change in the gain of the second amplification device in one direction is effected by a change in gain, brought about by means of the control, in the first amplification device in the opposite direction such that the total gain remains essentially the same.

公开(公告)号：DE102004034274A1

公开(公告)日：2006-02-09

申请号：DE102004034274

申请日：2004-07-15

Applicant: INFINEON TECHNOLOGIES AG

Inventor： PFLAUM BERND ,  KRUG ERWIN

IPC: H04N5/44

Abstract: According to one or more aspects of the present invention, a receiver arrangement is disclosed that is configured to receive digital television signals. The receiver arrangement has at least one first frequency conversion device with the signal input, a local oscillator input and an output. The at least one first frequency conversion device is designed to convert a signal which is applied to the input side to an intermediate frequency. A first amplifier is also provided and is designed with amplification in order to compensate for the signal level loss in a filter which is connected downstream from the first amplifier. The first amplifier is coupled to the output of the frequency conversion device. An intermediate-frequency amplifier with a variable gain factor is also provided, and is coupled to the first amplifier. At least the at least one first frequency conversion device the first amplifier are formed in a common semiconductor body.

公开(公告)号：DE50006059D1

公开(公告)日：2004-05-19

申请号：DE50006059

申请日：2000-06-26

Applicant: INFINEON TECHNOLOGIES AG

Inventor： MUSCHALLIK CLAUS ,  PFLAUM BERND ,  LANG HEINZ

IPC: H03L7/093 ,  H03J5/02 ,  H03J5/24 ,  H03L7/089 ,  H03L7/18 ,  H03L7/183 ,  H04L27/00 ,  H04L27/26 ,  H04N5/44 ,  H04N5/455

Abstract: A phase locked loop system for tuning the reception frequency of a receiver for digitally modulated received signals and analog-modulated received signals has at least one voltage controlled oscillator for producing an oscillator signal for a reception frequency tuning. A first frequency divider is provided for dividing the frequency of the oscillator signal to a nominal comparison frequency as a function of a receiving channel selection signal. A second frequency divider is provided for dividing a reference frequency as a function of a reception mode switching signal. A phase comparison circuit is provided for comparing the signals supplied by the frequency dividers in order to produce a tuning voltage for the voltage controlled oscillator wherein the gain of the phase comparison circuit is adjustable in order to optimize the phase noise.

公开(公告)号：DE10114779A1

公开(公告)日：2002-10-24

申请号：DE10114779

申请日：2001-03-26

Applicant: INFINEON TECHNOLOGIES AG

Inventor： MUSCHALLIK CLAUS ,  SEDLMAIER ROBERT ,  PFLAUM BERND

IPC: H04L27/36 ,  H04B1/30 ,  H04B1/40 ,  H04J11/00 ,  H04L27/26 ,  H04L27/38 ,  H04L27/34

Abstract: A transmitting and receiving unit includes a receiving branch and a transmitting branch that are in each case constructed for conducting complex signals, with a control device that drives a switch by which either a phase-locked loop is switched through to frequency converters provided at the transmitting and receiving end, for providing a common carrier frequency, or in each case an independently operating PLL is provided for the transmitting and receiving branch. Such a configuration enables the transmitter, for example, to operate with direct conversion whereas the receiver can operate, for example, on the low IF principle. The invention is suitable for OFDM multi-carrier systems.