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1.发明授权Direct-conversion transmitting circuit and integrated transmitting/receiving circuit 有权直接转换发射电路和集成发射/接收电路公开(公告)号：US07116950B2
公开(公告)日：2006-10-03
申请号：US10073029
申请日：2002-02-12
申请人： Satoshi Tanaka , Masamichi Tanabe , Yasuyuki Okuma , Taizo Yamawaki , Koichi Yahagi , Hiroaki Matsui , Robert Astle Henshaw
发明人： Satoshi Tanaka , Masamichi Tanabe , Yasuyuki Okuma , Taizo Yamawaki , Koichi Yahagi , Hiroaki Matsui , Robert Astle Henshaw
IPC分类号： H04B1/04
CPC分类号： H03D7/1433 , H03C3/40 , H03D7/145 , H03D7/1458 , H03D2200/0025 , H03D2200/0033 , H03D2200/0043 , H03D2200/0047
摘要： A transmitter is provided which includes a transmitting circuit that does not require a high-performance low noise VCO restricting cost reduction thereof and that can reduce the number of parts without requiring an RF filter. A direct conversion that does not require a transmission VCO is applied to the transmitting circuit. In order to achieve noise reduction in a receiving band, low-pass filters are provided a IQ input sections of a modulator that converts IQ signals into RF signals. In comparison with a conventional transmitter using offset PLL, an external VCO required in addition to an RF integrated circuit, a power amplifier, and a front end circuit is reduced. Even in current transistor performance, by using a filter having rapid waveform characteristics such as a SAW more inexpensive than the VCO, or the like, it is possible to provide a GSM/GSM 1800/GSM1900 triple band transmitter.
摘要翻译： 提供一种发送器，其包括不需要高性能低噪声VCO来限制其成本降低并且可以减少部件数量而不需要RF滤波器的发送电路。 将不需要传输VCO的直接转换应用于发送电路。 为了实现接收频带中的噪声降低，提供了将IQ信号转换成RF信号的调制器的IQ输入部分的低通滤波器。 与使用偏移PLL的常规发射机相比，减少了RF集成电路，功率放大器和前端电路之外需要的外部VCO。 即使在目前的晶体管性能中，通过使用具有比VCO更便宜的SAW等具有快速波形特性的滤波器等，也可以提供GSM / GSM 1800 / GSM1900三频发射机。
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2.发明申请Direct-conversion transmitting circuit and integrated transmitting/receiving circuit 审中-公开直接转换发射电路和集成发射/接收电路公开(公告)号：US20070021076A1
公开(公告)日：2007-01-25
申请号：US11529326
申请日：2006-09-29
申请人： Satoshi Tanaka , Masamichi Tanabe , Yasuyuki Okuma , Taizo Yamawaki , Koichi Yahagi , Hiroaki Matsui , Robert Henshaw
发明人： Satoshi Tanaka , Masamichi Tanabe , Yasuyuki Okuma , Taizo Yamawaki , Koichi Yahagi , Hiroaki Matsui , Robert Henshaw
CPC分类号： H03D7/1433 , H03C3/40 , H03D7/145 , H03D7/1458 , H03D2200/0025 , H03D2200/0033 , H03D2200/0043 , H03D2200/0047
摘要： A transmitter is provided which includes a transmitting circuit that does not require a high-performance low noise VCO restricting cost reduction thereof and that can reduce the number of parts without requiring an RF filter. A direct conversion that does not require a transmission VCO is applied to the transmitting circuit. In order to achieve noise reduction in a receiving band, low-pass filters are provided at IQ input sections of a modulator that converts IQ signals into RF signals. In comparison with a conventional transmitter using offset PLL, an external VCO required in addition to an RF integrated circuit, a power amplifier, and a front end circuit is reduced. Even in current transistor performance, by using a filter having rapid waveform characteristics such as a SAW more inexpensive than the VCO, or the like, it is possible to provide a GSM/GSM 1800/GSM1900 triple band transmitter.
摘要翻译： 提供一种发送器，其包括不需要高性能低噪声VCO来限制其成本降低并且可以减少部件数量而不需要RF滤波器的发送电路。 将不需要传输VCO的直接转换应用于发送电路。 为了实现接收频带的降噪，在将IQ信号转换为RF信号的调制器的IQ输入部分提供低通滤波器。 与使用偏移PLL的常规发射机相比，减少了RF集成电路，功率放大器和前端电路之外需要的外部VCO。 即使在目前的晶体管性能中，通过使用具有比VCO更便宜的SAW等具有快速波形特性的滤波器等，也可以提供GSM / GSM 1800 / GSM1900三频发射机。
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公开(公告)号：US06912380B2
公开(公告)日：2005-06-28
申请号：US09819810
申请日：2001-03-29
CPC分类号： H03L7/085 , H03L7/07 , H03L7/10 , H03L2207/12
摘要： In a PLL circuit, and a wireless mobile station with that PLL circuit, an LPF charging constant current source, a discharging constant current source and a high-speed charging constant current source are connected to an output terminal of a phase comparator with current mode output. When a convergence frequency of the PLL circuit is low, an input voltage of a VCO is increased from OV so as to be converged by using the constant current source. However, when the convergence frequency of the PLL circuit is high, the input voltage of the PLL circuit is temporarily increased to the maximum voltage by using the constant current source. Thereafter, the input voltage is gradually dropped from the maximum voltage so as to be converged by using the constant current source.
摘要翻译： 在PLL电路和具有该PLL电路的无线移动站中，LPF充电恒流源，放电恒流源和高速充电恒流源连接到具有电流模式输出的相位比较器的输出端 。 当PLL电路的收敛频率低时，VCO的输入电压从0V增加，以便通过使用恒流源而被收敛。 然而，当PLL电路的收敛频率高时，通过使用恒流源将PLL电路的输入电压临时增加到最大电压。 此后，输入电压从最大电压逐渐降低，以便通过使用恒流源来收敛。
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4.发明授权公开(公告)号：US07076231B2
公开(公告)日：2006-07-11
申请号：US10374106
申请日：2003-02-27
申请人： Taizo Yamawaki , Satoshi Tanaka , Yasuyuki Okuma
发明人： Taizo Yamawaki , Satoshi Tanaka , Yasuyuki Okuma
IPC分类号： H04B1/26
CPC分类号： H04B1/28
摘要： A receiver apparatus is provided with a receiver section including an amplifying stage for amplifying a high frequency signal received by an antenna, a frequency converting stage for converting a frequency of the output signal of the amplifying stage, a local oscillator for supplying a local oscillating signal to the frequency converting stage, and a signal processing section for supplying a control signal to the receiver section depending on signal intensity inputted to the receiver section, or to the signal processing section from the receiver section. The frequency converting section includes a plurality of parallel frequency converters, and an adder for adding output signals of the frequency converters. The signal processing section controls the number of the frequency converters to be operated.
摘要翻译： 接收机装置具有接收部分，该接收部分包括用于放大由天线接收的高频信号的放大级，用于转换放大级的输出信号的频率的频率转换级，用于提供本地振荡信号的本地振荡器 以及信号处理部分，用于根据输入到接收机部分的信号强度或者从接收机部分向信号处理部分向接收机部分提供控制信号。 频率转换部分包括多个并行变频器，以及用于加上变频器的输出信号的加法器。 信号处理部分控制要操作的变频器的数量。
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5.发明申请公开(公告)号：US20090068967A1
公开(公告)日：2009-03-12
申请号：US12263571
申请日：2008-11-03
IPC分类号： H01Q11/12
CPC分类号： H03F3/211 , H03F3/45085 , H03F2200/78 , H03G3/3042
摘要： A communication semiconductor integrated circuit includes a phase control loop and an amplitude control loop. A gain of a variable gain amplifier when it is detected from an output of the comparator that the amplitudes of the reference signal and the feedback signal are equal to each other while a predetermined DC voltage is applied to an amplifier which amplifies an output of a transmission oscillation circuit and is controlled by the amplitude control loop to vary the gain of the variable gain amplifier on a feedback path is held in a register. Thereafter, the DC voltage is changed to another value to detect the gain of the variable gain amplifier, so that the gain of a variable gain amplifier on the forward path is decided on the basis of the detected gain and the gain held in the register.
摘要翻译： 通信半导体集成电路包括相位控制环路和幅度控制环路。 当从比较器的输出检测到可变增益放大器的增益时，参考信号和反馈信号的幅度彼此相等，同时将预定的DC电压施加到放大器，其放大传输的输出 振荡电路并由幅度控制环路控制，将可变增益放大器的增益在反馈路径上保持在寄存器中。 此后，将DC电压改变为另一个值以检测可变增益放大器的增益，从而基于检测到的增益和保持在寄存器中的增益来确定正向通路上的可变增益放大器的增益。
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6.发明授权公开(公告)号：US08095094B2
公开(公告)日：2012-01-10
申请号：US12263571
申请日：2008-11-03
CPC分类号： H03F3/211 , H03F3/45085 , H03F2200/78 , H03G3/3042
摘要： A communication semiconductor integrated circuit includes a phase control loop and an amplitude control loop. A gain of a variable gain amplifier when it is detected from an output of the comparator that the amplitudes of the reference signal and the feedback signal are equal to each other while a predetermined DC voltage is applied to an amplifier which amplifies an output of a transmission oscillation circuit and is controlled by the amplitude control loop to vary the gain of the variable gain amplifier on a feedback path is held in a register. Thereafter, the DC voltage is changed to another value to detect the gain of the variable gain amplifier, so that the gain of a variable gain amplifier on the forward path is decided on the basis of the detected gain and the gain held in the register.
摘要翻译： 通信半导体集成电路包括相位控制环路和幅度控制环路。 当从比较器的输出检测到可变增益放大器的增益时，参考信号和反馈信号的幅度彼此相等，同时将预定的DC电压施加到放大器，其放大传输的输出 振荡电路并由幅度控制环路控制，将可变增益放大器的增益在反馈路径上保持在寄存器中。 此后，将DC电压改变为另一个值以检测可变增益放大器的增益，从而基于检测到的增益和保持在寄存器中的增益来确定正向通路上的可变增益放大器的增益。
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公开(公告)号：US20050220217A1
公开(公告)日：2005-10-06
申请号：US11017076
申请日：2004-12-21
申请人： Taizo Yamawaki , Masahiro Ito , Masumi Kasahara , Hiroaki Matsui
发明人： Taizo Yamawaki , Masahiro Ito , Masumi Kasahara , Hiroaki Matsui
CPC分类号： H04L27/0008 , H03F1/02 , H03F3/24 , H04B2001/045
摘要： A transmitter that can reduce noise without using an SAW filter whose IC integration is hard, and copes with two modulation formats of constant envelope modulation and non-constant envelope modulation, and a downsized and low-cost wireless communication apparatus that uses the transmitter are provided. The transmitter includes a quadrature modulator that modulates an input signal by quadrature modulation, a first amplifier that amplifies a modulation signal outputted by the quadrature modulator, and a second amplifier that amplifies an output signal of the first amplifier. The first amplifier operates as a limiter when the modulation format is the constant envelope modulation, and performs linear operation when the modulation format is the non-constant envelope modulation.
摘要翻译： 提供一种能够在不使用集成硬件的SAW滤波器的情况下降低噪声的发射机，并且应用恒定包络调制和非恒定包络调制的两种调制格式，以及使用发射机的小型化和低成本的无线通信装置 。 发射机包括通过正交调制来调制输入信号的正交调制器，放大由正交调制器输出的调制信号的第一放大器和放大第一放大器的输出信号的第二放大器。 当调制格式为恒定包络调制时，第一放大器用作限幅器，并且当调制格式是非恒定包络调制时，执行线性运算。
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8.发明申请Communication semiconductor integrated circuit device and electrical apparatus 审中-公开通信半导体集成电路器件和电气设备公开(公告)号：US20050136847A1
公开(公告)日：2005-06-23
申请号：US11011153
申请日：2004-12-15
申请人： Hiroaki Matsui , Taizo Yamawaki , Masahiro Ito , Masakatsu Yokota
发明人： Hiroaki Matsui , Taizo Yamawaki , Masahiro Ito , Masakatsu Yokota
IPC分类号： H03G11/00 , H03F1/32 , H03F1/52 , H03F3/195 , H03F3/45 , H03F3/72 , H03G3/10 , H03G3/30 , H04B1/44
CPC分类号： H03F3/45286 , H03F1/3211 , H03F1/52 , H03F3/195 , H03F3/72 , H03F2200/09 , H03F2200/111 , H03F2203/45638 , H03F2203/45704 , H03F2203/45706 , H03G3/3042
摘要： A communication semiconductor integrated circuit (high frequency IC) that has a function of differentially-singly converts and outputs a transmitted signal suppressing deterioration of a harmonic suppression characteristic and enables miniaturization and an electronic component (high frequency module) that mounts the communication semiconductor integrated circuit are provided. In the communication semiconductor integrated circuit (high frequency IC) having a limiter that amplifies a modulated and up-converted transmitted signal and supplies a power amplifier with the signal, an unbalanced reduction means having, for example, differential MOS transistors is provided in collectors or drains of differential transistors that construct the limiter to output pins and continue to apply a current to the output pins and reduces the impedance of the transistor on an off side even when one of the transistors enters an off state in accordance with an input signal in parallel to the transistor.
摘要翻译： 具有差分单变换功能的通信用半导体集成电路（高频IC），输出抑制谐波抑制特性的劣化的发送信号，能够实现小型化，以及安装通信半导体集成电路的电子部件（高频模块） 被提供。 在具有放大经调制和上变频的发送信号并向功率放大器供给该信号的限幅器的通信半导体集成电路（高频IC）中，具有例如差分MOS晶体管的不平衡减小装置设置在收集器或 差分晶体管的漏极构成限制器以输出引脚并且继续向输出引脚施加电流，并且即使当晶体管中的一个根据并行的输入信号进入截止状态时也减小了晶体管在截止侧的阻抗 到晶体管。
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9.发明申请公开(公告)号：US20060234656A1
公开(公告)日：2006-10-19
申请号：US11371108
申请日：2006-03-09
IPC分类号： H01Q11/12
CPC分类号： H03F3/211 , H03F3/45085 , H03F2200/78 , H03G3/3042
摘要： A communication semiconductor integrated circuit includes a phase control loop and an amplitude control loop. A gain of a variable gain amplifier when it is detected from an output of the comparator that the amplitudes of the reference signal and the feedback signal are equal to each other while a predetermined DC voltage is applied to an amplifier which amplifies an output of a transmission oscillation circuit and is controlled by the amplitude control loop to vary the gain of the variable gain amplifier on a feedback path is held in a register. Thereafter, the DC voltage is changed to another value to detect the gain of the variable gain amplifier, so that the gain of a variable gain amplifier on the forward path is decided on the basis of the detected gain and the gain held in the register.
摘要翻译： 通信半导体集成电路包括相位控制环路和幅度控制环路。 当从比较器的输出检测到可变增益放大器的增益时，参考信号和反馈信号的幅度彼此相等，同时将预定的DC电压施加到放大器，其放大传输的输出 振荡电路并由幅度控制环路控制，将可变增益放大器的增益在反馈路径上保持在寄存器中。 此后，将DC电压改变为另一个值以检测可变增益放大器的增益，从而基于检测到的增益和保持在寄存器中的增益来确定正向通路上的可变增益放大器的增益。
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10.发明授权公开(公告)号：US07463876B2
公开(公告)日：2008-12-09
申请号：US11371108
申请日：2006-03-09
CPC分类号： H03F3/211 , H03F3/45085 , H03F2200/78 , H03G3/3042
摘要： A communication semiconductor integrated circuit includes a phase control loop and an amplitude control loop. A gain of a variable gain amplifier when it is detected from an output of the comparator that the amplitudes of the reference signal and the feedback signal are equal to each other while a predetermined DC voltage is applied to an amplifier which amplifies an output of a transmission oscillation circuit and is controlled by the amplitude control loop to vary the gain of the variable gain amplifier on a feedback path is held in a register. Thereafter, the DC voltage is changed to another value to detect the gain of the variable gain amplifier, so that the gain of a variable gain amplifier on the forward path is decided on the basis of the detected gain and the gain held in the register.
摘要翻译： 通信半导体集成电路包括相位控制环路和幅度控制环路。 当从比较器的输出检测到可变增益放大器的增益时，参考信号和反馈信号的幅度彼此相等，同时将预定的DC电压施加到放大器，其放大传输的输出 振荡电路并由幅度控制环路控制，将可变增益放大器的增益在反馈路径上保持在寄存器中。 此后，将DC电压改变为另一个值以检测可变增益放大器的增益，从而基于检测到的增益和保持在寄存器中的增益来确定正向通路上的可变增益放大器的增益。
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