公开(公告)号：US5566360A

公开(公告)日：1996-10-15

申请号：US226967

申请日：1994-04-13

申请人： Josef Fenk ,  Helmut Herrmann ,  Peter Sehrig ,  Werner Veit

发明人： Josef Fenk ,  Helmut Herrmann ,  Peter Sehrig ,  Werner Veit

IPC分类号： H04B1/40

CPC分类号： H04B1/40

摘要： A integratable transmitter/receiver configuration for higher frequencies includes a reception path mixer multiplying a reception signal and a carrier frequency signal with one another. A controlled first intermediate frequency oscillator can be turned off by a switch control signal and has a frequency range being reversible by a first range control signal. A demodulator is connected downstream of the reception path mixer and receives the output signal of the first intermediate frequency oscillator both directly and phase-displaced by 90.degree.. A phase detector device is connected downstream of and controls the first intermediate frequency oscillator, and has a frequency range being reversible by a second range control signal. A controlled second intermediate frequency oscillator is connected parallel to the first intermediate frequency oscillator and can be turned on by the switch control signal. A transmission path mixer has one input being connected to the outputs of the first and second intermediate frequency oscillators and has another input receiving the carrier frequency signal. A modulator is connected downstream of the transmission path mixer, receives an input signal, and supplies a transmission signal.

摘要翻译： 用于更高频率的可集成的发射机/接收机配置包括将接收信号和载波频率信号彼此相乘的接收路径混合器。 控制的第一中频振荡器可以通过开关控制信号被关断，并且具有可由第一范围控制信号反转的频率范围。 解调器连接在接收路径混合器的下游，并将第一中频振荡器的输出信号直接和相位偏移90°。 相位检测器装置连接在第一中频振荡器的下游并控制第一中频振荡器，并且具有可由第二范围控制信号反转的频率范围。 受控的第二中频振荡器与第一中频振荡器并联连接，并可通过开关控制信号导通。 传输路径混合器具有连接到第一和第二中频振荡器的输出的一个输入端，并具有接收载波频率信号的另一输入端。 调制器连接在传输路径混合器的下游，接收输入信号，并提供传输信号。

公开(公告)号：US5604460A

公开(公告)日：1997-02-18

申请号：US500041

申请日：1995-07-10

申请人： Peter Sehrig ,  Josef Fenk ,  Stefan Heinen

发明人： Peter Sehrig ,  Josef Fenk ,  Stefan Heinen

IPC分类号： H03G1/00 ,  H03G3/00 ,  H03F1/14

CPC分类号： H03G1/0088 ,  H03G3/001

摘要： An amplifier array having digitally adjustable total gain and being constructed of a multiplicity of switchable individual amplifiers, includes at least two parallel, selectively triggerable gain paths having input and output sides. Each of the gain paths has an input amplifier and a switching amplifier being connected downstream of the input amplifier and being switchable in stages. A multiplexer has inputs connected to the output side of the gain paths and has an output. An amplifier array input is connected to the input side of the gain paths and an amplifier array output is formed by the output of the multiplexer. In a mobile radio receiver having the amplifier array, a total gain of the amplifier array is adjusted for setting an output signal of the mobile radio receiver at a constant level.

摘要翻译： 具有数字可调整总增益并由多个可切换单独放大器构成的放大器阵列包括具有输入和输出侧的至少两个平行的，可选择的可触发的增益路径。 每个增益路径具有输入放大器和开关放大器，其连接在输入放大器的下游并且可分阶段地切换。 多路复用器具有连接到增益路径的输出侧的输入并具有输出。 放大器阵列输入连接到增益路径的输入侧，放大器阵列输出由多路复用器的输出形成。 在具有放大器阵列的移动无线电接收机中，调整放大器阵列的总增益以将移动无线电接收机的输出信号设定在恒定水平。

公开(公告)号：US06768770B1

公开(公告)日：2004-07-27

申请号：US09556487

申请日：2000-04-21

申请人： Georg Lipperer ,  Peter Sehrig ,  Josef Schmal

发明人： Georg Lipperer ,  Peter Sehrig ,  Josef Schmal

IPC分类号： H04L516

CPC分类号： H04B1/44

摘要： A transceiver has bidirectional internal interface lines which can be connected to a baseband circuit. The transceiver is switchable by the baseband circuit between a transmission mode and a reception mode. The internal interface lines are connected to at least one quadrature modulator which in the transmission mode is connected to the interface lines, and to a quadrature demodulator which in the reception mode is connected to the interface lines. In the alternative, the demodulator is set to high impedance in the transmission mode and the modulator is set to high impedance in the reception mode.

摘要翻译： 收发器具有可连接到基带电路的双向内部接口线路。 收发器可以由传输模式和接收模式之间的基带电路切换。 内部接口线连接到至少一个正交调制器，其在传输模式下连接到接口线，并连接到正交解调器，其在接收模式下连接到接口线。 或者，在发送模式下将解调器设置为高阻抗，并且在接收模式下将调制器设置为高阻抗。

公开(公告)号：US4634994A

公开(公告)日：1987-01-06

申请号：US733533

申请日：1985-05-13

申请人： Wilhelm Wilhelm ,  Peter Sehrig

发明人： Wilhelm Wilhelm ,  Peter Sehrig

IPC分类号： H03F1/48 ,  H03F3/45

CPC分类号： H03F1/48 ,  H03F3/45085 ,  H03F2203/45251 ,  H03F2203/45318 ,  H03F2203/45376 ,  H03F2203/45702

摘要： A bipolar semiconductor circuit arrangement with transistors of one conduction type having a differential amplifier stage formed by a first and a second transistor with collectors coupled back crosswise to bases thereof and with emitters thereof connected to terminal of a current source having another terminal which is at supply potential, the first and second transistors having a collector circuit wherein a respective resistance is connected includes a pair of control transistors having collector-emitter paths connected between the respective resistances and the collectors of the first and second transistors of the differential amplifier stage, the control transistors having respective base terminals serving as a source of complimentary input signals, and having respective collectors connected to a source of complementary output signals.

摘要翻译： 一种具有一个导电类型晶体管的双极半导体电路，具有由第一和第二晶体管形成的差分放大器级的晶体管，所述第一和第二晶体管具有与其基极交叉反向的集电极，并且其发射极连接到具有另一端子的电流源的端子 电位，具有集电极电路的第一和第二晶体管，其中相应的电阻连接包括一对控制晶体管，其具有连接在各个电阻和差分放大器级的第一和第二晶体管的集电极之间的集电极 - 发射极路径，控制 具有各自的基极的晶体管用作互补输入信号的源，并且具有连接到互补输出信号源的各个集电极。