公开(公告)号：US5740521A

公开(公告)日：1998-04-14

申请号：US555012

申请日：1995-11-13

申请人： Jaakko Hulkko ,  Merja Vuolteenaho

发明人： Jaakko Hulkko ,  Merja Vuolteenaho

IPC分类号： H03J7/06 ,  H04B1/40

CPC分类号： H03J7/06 ,  H04B1/403

摘要： In the frequency synthesizer, the stable transmission frequency required by the digital operating mode is created from a frequency produced by a free running oscillator and which includes frequency errors. A local frequency (f.sub.1) and an intermediate frequency (f.sub.IF) including frequency errors are input to a mixer (105) located in the signal path of the transmitter. A transmission frequency transmission signal (f.sub.TX) is input to a phase-lock loop with a voltage-controlled oscillator (103) that produces the local frequency (f.sub.1). Thereby the frequency error caused by the intermediate frequency (f.sub.IF) can be corrected with the local frequency (f.sub.1) by adjusting the voltage-controlled oscillator (103) of the loop with a voltage (V.sub.D) that is proportional to the phase difference between the transmission frequency signal and a reference signal (V.sub.REF) input to a phase comparator. This is implemented by connecting the mixer (105) to the loop during the transmission time period with a controllable switch (104), for example. The local frequency (f.sub.1) of the receiver is produced with the frequency synthesizer described in the present invention by disconnecting the mixer (105) from the loop. The invention can be applied in producing frequencies for radio telephones that include dual-mode operating modes and exclusively digital operating modes.

摘要翻译： 在频率合成器中，由自由运行的振荡器产生的频率产生数字操作模式所需的稳定的传输频率，并且包括频率误差。 包括频率误差的本地频率（f1）和中频（fIF）被输入到位于发射机的信号路径中的混频器（105）。 利用产生本地频率（f1）的压控振荡器（103）将发送频率发送信号（fTX）输入到锁相环。 因此，可以通过利用与电压（V）之间的相位差成比例的电压（VD）来调节环路的压控振荡器（103），利用本地频率（f1）来校正由中频（fIF）引起的频率误差 传输频率信号和参考信号（VREF）输入到相位比较器。 这通过例如在可控开关（104）处在传输时间段期间将混频器（105）连接到环路来实现。 接收机的本地频率（f1）由本发明中描述的频率合成器通过将混频器（105）与环路断开来产生。 本发明可以应用于产生包括双模式操作模式和独家数字操作模式的无线电话的频率。

公开(公告)号：US5392460A

公开(公告)日：1995-02-21

申请号：US52335

申请日：1993-04-23

申请人： Heikki Mattila ,  Jorma Matero ,  Jaakko Hulkko

发明人： Heikki Mattila ,  Jorma Matero ,  Jaakko Hulkko

IPC分类号： H03C3/00 ,  H03C3/40 ,  H03D7/16 ,  H04B1/52

CPC分类号： H03C3/40 ,  H03C3/00 ,  H03D7/163

摘要： A dual-mode radiotelephone terminal includes a .pi./4-shift DQPSK modulator (11). A dual-mode modulation is achieved by mixing an output of a transmitter oscillator (16) with an output of an offset oscillator (18) to form an injection signal (LO) at a final transmitter frequency, the injection signal being further modulated with a quadrature modulator in a digital mode of operation. In an analog mode of operation the transmitter oscillator or the offset oscillator is frequency modulated and the quadrature modulator is disabled, thereby passing the frequency modulated injection signal without substantial attenuation. The LO signal is regenerated and also phase shifted with a circuit (35) having a frequency multiplier (30) and a frequency divider (34). The circuit outputs two local oscillator (LO) signals (LOA and LOB), each of which directly drives an associated quadrature mixer (36, 38) of the modulator. In another embodiment the dual-mode radiotelephone terminal includes a VHF synthesizer (23), a UHF synthesizer (21), and a local oscillator (4C) that provides a signal only when operating in the analog receiving mode. The local oscillator signal is mixed with a first IF signal for providing a second IF signal when operating in the analog receiving mode or in a standby mode. A control signal is employed for selectively enabling and disabling various of these components as a function of the operating mode, thereby conserving power.

摘要翻译： 双模无线电话终端包括一个π/ 4位DQPSK调制器（11）。 通过将发射机振荡器（16）的输出与偏移振荡器（18）的输出混合以在最终发射机频率处形成注入信号（LO）来实现双模式调制，所述注入信号进一步被调制为 正交调制器处于数字操作模式。 在模拟操作模式下，发射机振荡器或偏移振荡器进行频率调制，正交调制器被禁用，从而通过频率调制的注入信号而没有实质的衰减。 LO信号被再生并且还与具有倍频器（30）和分频器（34）的电路（35）相移。 电路输出两个本地振荡器（LO）信号（LOA和LOB），每个本地振荡器（LO）信号直接驱动调制器的相关联的正交混频器（36,38）。 在另一个实施例中，双模式无线电话终端包括VHF合成器（23），UHF合成器（21）和只在模拟接收模式下工作时提供信号的本地振荡器（4C）。 本地振荡器信号与第一IF信号混合，以在模拟接收模式或待机模式下工作时提供第二IF信号。 采用控制信号作为操作模式的功能选择性地启用和禁用这些组件中的各种，从而节省功率。

公开(公告)号：US5819165A

公开(公告)日：1998-10-06

申请号：US884114

申请日：1997-06-27

申请人： Jaakko Hulkko ,  Merja Vuolteenaho

发明人： Jaakko Hulkko ,  Merja Vuolteenaho

IPC分类号： H04B1/40 ,  H04B20060101 ,  H04B1/04 ,  H04B1/62 ,  H04B7/005 ,  H04B7/26 ,  H04B15/00 ,  H04L27/00

CPC分类号： H04W52/52

摘要： The invention is based on utilizing the receiver of a radio device to detect measured quantities related to a transmission signal. In the power regulating method according to the present invention, which is based on a power regulating loop, transmission power is detected in the receiver of the radio device. Part of the transmission signal (f.sub.TX) is input to the carrier frequency part of the signal path of the receiver by and detected. A signal that is proportional to the power level is produced by a RSSI detector of the receiver, for example. The same circuit can also be utilized in the linearization of a transmission signal based on a closed loop by means of predistortion. Both the power regulation method and the linearization method can be applied in radio telephone systems based on both time-division and continuous transmission and reception.

摘要翻译： 本发明基于利用无线电设备的接收机来检测与传输信号相关的测量量。 在根据本发明的基于功率调节回路的功率调节方法中，在无线电设备的接收机中检测发送功率。 传输信号（fTX）的一部分被输入到接收机的信号路径的载波频率部分并被检测。 例如，与功率电平成比例的信号由接收器的RSSI检测器产生。 同样的电路也可以用于通过预失真来基于闭环线路化发送信号。 功率调节方法和线性化方法都可以应用于基于时分和连续发送和接收的无线电话系统中。

公开(公告)号：US4998078A

公开(公告)日：1991-03-05

申请号：US336259

申请日：1989-04-11

申请人： Jaakko Hulkko

发明人： Jaakko Hulkko

IPC分类号： H03H7/46

CPC分类号： H03H7/46

摘要： The invention relates to a dividing network in the support station in a radio telephone network, wherein the received multi-channel antenna signal (ANT) is divided among separate receivers (CH1-CHn) by means of a dividing unit. The dividing unit is made up of a filter (2), an amplifier (3) and a dividing network (1). According to the invention it has, in a cascade (11; 21), N directional couplers (H1-Hn; B1-Bn), there being branched out from the cascade in succession to each of the N receivers (CH1-CHn) a share, according to the coupling (k1-kn) of the directional coupler, of the filtered and amplified antenna signal (4).

公开(公告)号：US5471652A

公开(公告)日：1995-11-28

申请号：US96864

申请日：1993-07-26

申请人： Jaakko Hulkko

发明人： Jaakko Hulkko

IPC分类号： H03J5/00 ,  H03D7/16 ,  H04B1/40 ,  H04B7/26 ,  H04B1/50

CPC分类号： H04B1/005 ,  H03D7/16 ,  H04B1/405 ,  H04B1/406

摘要： The invention relates to a general purpose circuit arrangement for a radio telephone wherein the universal application possibilities have been provided by phase-locked circuits (PLL1 to PLL3) and by a multiplier circuit (11, 12) that can be controlled (signals Select x1/x2 and Synte sel./Data) by the processor of the mobile telephone. The second harmonic or the fundamental frequency is selected by the multiplier circuit from the VCO oscillators (61, 62). In this way, the frequencies of the synthesizer circuits (UHF1, UHF2, UHF3) can be set independently of each other and according to the requirements of the respective cellular networks. The central circuits are advantageously integrated into four IC circuits (IC1 to IC4).

摘要翻译： 本发明涉及一种用于无线电话的通用电路装置，其中通用应用可能性已由锁相电路（PLL1至PLL3）和可被控制的乘法器电路（11,12）提供（信号选择x1 / x2和Synte sel./Data）。 二次谐波或基频由VCO振荡器（61,62）的乘法器电路选择。 以这种方式，合成器电路（UHF1，UHF2，UHF3）的频率可以根据各个蜂窝网络的要求彼此独立地设置。 中央电路有利地集成在四个IC电路（IC1至IC4）中。

公开(公告)号：US4856080A

公开(公告)日：1989-08-08

申请号：US119469

申请日：1987-11-10

申请人： Jaakko Hulkko

发明人： Jaakko Hulkko

IPC分类号： H04B7/08 ,  H04B7/12

CPC分类号： H04B7/0865 ,  H04B7/084 ,  H04B7/12

摘要： A circuitry in a diversity unit of an FM receiver for a telephone system having at least two channels for receiving signals, and at least one phase-lock loop. The signals received by the channels which possibly differ from each in amplitude and frequency. Each channel comprises a mixer and a band-pass filter for forming an intermediate-frequency signal. The phase-lock loop has phase-lock branches operably connected between each mixer of the channels which comprises a frequency-phase comparator. The phase-lock loop equalizes the channel signals in phase and amplitude. The phase-lock loop further has a summation circuit for adding the channel signals which have been equalized. The frequency-phase comparator has a single phase-lock branch exiting therefrom along with a voltage-controlled oscillator connected to one of the mixers of one of the channels. The voltage-controlled oscillator has a switch on an input side thereof. The switch are for disconnecting the input side of the voltage-controlled oscillator from the frequency-phase comparator of the single phase-lock branch and for switching the voltage-controlled oscillator to a fixed and preset reference frequency. Coupled to another of one of the mixers of another set channels is a fixed-frequency oscillator and a signal-level sensing circuit which, in an event of slow fading the other channel, inputs a separate signal to the switch means of the voltage-controlled oscillator in order to switch the voltage-controlled oscillator to the fixed reference frequency.

摘要翻译： 用于电话系统的FM接收机的分集单元中的电路具有用于接收信号的至少两个信道和至少一个锁相环。 由信道接收的信号可能与幅度和频率各不相同。 每个通道包括用于形成中频信号的混频器和带通滤波器。 锁相环具有可操作地连接在包括频率相位比较器的通道的每个混频器之间的相位锁定分支。 锁相环在相位和幅度上均衡信道信号。 锁相环还具有用于相加已经被均衡的信道信号的求和电路。 频率相位比较器具有从其中退出的单个相位锁定分支以及连接到其中一个通道的一个混频器的压控振荡器。 压控振荡器在其输入侧具有开关。 该开关用于将压控振荡器的输入侧与单相锁定分支的频率相位比较器断开，并将压控振荡器切换到固定和预置的参考频率。 耦合到另一个信道的混频器中的另一个是固定频率振荡器和信号电平感测电路，其在另一个信道的缓慢衰落的情况下，将单独的信号输入到电压控制的开关装置 振荡器，以便将压控振荡器切换到固定的参考频率。

公开(公告)号：US5551067A

公开(公告)日：1996-08-27

申请号：US414041

申请日：1995-03-30

申请人： Jaakko Hulkko ,  Jorma Matero ,  Toivo Vilmi

发明人： Jaakko Hulkko ,  Jorma Matero ,  Toivo Vilmi

IPC分类号： H03G3/20 ,  H04B1/38 ,  H04J3/00 ,  H04B1/40

CPC分类号： H03G3/3047 ,  H04B1/3877

摘要： A method of controlling an external radio frequency amplifier of a radio telephone and a control system therefore. The power amplifier of the transmission side of the radio frequency amplifier is controlled to turn on and off, on the basis of at least one control signal (BENA1, BENA2) entering the radio frequency amplifier separate from a signal to be transmitted from the radio telephone. The control signal (BENA1, BENA2) contains information about the starting and ending instant of transmission.

摘要翻译： 因此，控制无线电话的外部射频放大器和控制系统的方法。 基于与从无线电话发送的信号分离的进入射频放大器的至少一个控制信号（BENA1，BENA2），控制射频放大器的发送侧的功率放大器导通和截止 。 控制信号（BENA1，BENA2）包含有关传输开始和结束时刻的信息。

公开(公告)号：US5530923A

公开(公告)日：1996-06-25

申请号：US219772

申请日：1994-03-30

申请人： Jarmo Heinonen ,  Jaakko Hulkko ,  Toivo Vilmi

发明人： Jarmo Heinonen ,  Jaakko Hulkko ,  Toivo Vilmi

IPC分类号： H04B1/04 ,  H04B1/40 ,  H04B7/005

CPC分类号： H03F3/72 ,  H04B1/406 ,  H04W52/52 ,  H03F2203/7239 ,  H04B2001/045 ,  H04W52/38

摘要： A dual mode transmitter circuit is disclosed including a non-linear high-power amplifier having an amplification that can be adjusted and a linear high-power amplifier. A first switch and a second switch are connected to the input and output of the linear, high-power amplifier. An amplification-adjustable, high-frequency transmitter control amplifier is connected to the input of the non-linear high-power amplifier. Apparatus for measuring transmission power such as a directional coupler is connected to the second switch, and a duplex filter is connected to the directional coupler. A power level control circuit is responsive to the measured transmission power from the directional coupler and to a power level signal. The power level signal is representative of the desired output power of the transmitter. The power level control circuit compares the measured power level from the directional coupler with the desired power level and produces a difference signal on its output lead which is connected to both the non-linear high-power amplifier and to the high-frequency transmitter control amplifier. A mode selection signal, for designating either an analog or digital type transmission mode is applied to a mode control circuit that is responsive to the mode selection signal and provides switching signals to the first and second switches and a control signal to the linear amplifier. The mode selection signal sets the transmitter to function in either the non-linear transmission (analog) mode or the linear transmission (digital) mode.

摘要翻译： 公开了一种双模发射机电路，其包括具有可调节放大的非线性大功率放大器和线性高功率放大器。 第一开关和第二开关连接到线性大功率放大器的输入和输出。 放大可调的高频发射器控制放大器连接到非线性大功率放大器的输入端。 用于测量诸如定向耦合器之类的传输功率的装置连接到第二开关，并且双向滤波器连接到定向耦合器。 功率电平控制电路响应于来自定向耦合器的测量的发射功率和功率电平信号。 功率电平信号代表发射机的期望输出功率。 功率电平控制电路将来自定向耦合器的测量功率电平与所需功率电平进行比较，并在其输出引线上产生差分信号，该信号连接到非线性高功率放大器和高频发射器控制放大器 。 用于指定模拟或数字式传输模式的模式选择信号被应用于响应于模式选择信号的模式控制电路，并且向第一和第二开关提供开关信号以及向线性放大器提供控制信号。 模式选择信号将发射机设置为在非线性传输（模拟）模式或线性传输（数字）模式下工作。

公开(公告)号：US5446422A

公开(公告)日：1995-08-29

申请号：US305584

申请日：1994-09-14

申请人： Heikki Mattila ,  Jorma Matero ,  Jaakko Hulkko

发明人： Heikki Mattila ,  Jorma Matero ,  Jaakko Hulkko

IPC分类号： H03C3/00 ,  H03C3/40 ,  H03D7/16 ,  H04L27/12 ,  H04L27/20

CPC分类号： H03C3/40 ,  H03C3/00 ,  H03D7/163

摘要： A dual-mode radiotelephone terminal includes a .pi./4-shift DQPSK modulator (11). A dual-mode modulation is achieved by mixing an output of a transmitter oscillator (16) with an output of an offset oscillator (18) to form an injection signal (LO) at a final transmitter frequency, the injection signal being further modulated with a quadrature modulator in a digital mode of operation. In an analog mode of operation the transmitter oscillator or the offset oscillator is frequency modulated and the quadrature modulator is disabled with a bias signal, thereby passing the frequency modulated injection signal without substantial attenuation. The LO signal is regenerated and also phase shifted with a circuit (35) having a frequency multiplier (30) and a frequency divider (34). The circuit outputs two local oscillator (LO) signals (LOA and LOB), each of which directly drives an associated quadrature mixer (36, 38) of the modulator. A control signal is employed for selectively enabling and disabling various of these components as a function of the operating mode, thereby conserving power.

摘要翻译： 双模无线电话终端包括一个π/ 4位DQPSK调制器（11）。 通过将发射机振荡器（16）的输出与偏移振荡器（18）的输出混合以在最终发射机频率处形成注入信号（LO）来实现双模式调制，所述注入信号进一步被调制为 正交调制器处于数字操作模式。 在模拟操作模式下，发射机振荡器或偏移振荡器进行频率调制，并且使用偏置信号禁用正交调制器，从而通过频率调制的注入信号而没有实质的衰减。 LO信号被再生并且还与具有倍频器（30）和分频器（34）的电路（35）相移。 电路输出两个本地振荡器（LO）信号（LOA和LOB），每个本地振荡器（LO）信号直接驱动调制器的相关联的正交混频器（36,38）。 采用控制信号作为操作模式的功能选择性地启用和禁用这些组件中的各种，从而节省功率。