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1. 发明申请

US20050136847A1 Communication semiconductor integrated circuit device and electrical apparatus 审中-公开
标题翻译：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。

2. 发明申请

US20050220217A1 Transmitter and wireless communication apparatus using same 失效
标题翻译：发射机和无线通信装置使用它
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
IPC分类号： H03C5/00 , H03G3/30 , H04B1/04 , H04K1/02 , H04L27/00 , H04L27/12 , H04L27/20
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。

3. 发明授权

US07515648B2 Transmitter and wireless communication apparatus using same 失效
标题翻译：发射机和无线通信装置使用它
公开(公告)号：US07515648B2
公开(公告)日：2009-04-07
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
IPC分类号： H04K1/02
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。

4. 发明申请

US20090068967A1 COMMUNICATION SEMICONDUCTOR INTEGRATED CIRCUIT, COMMUNICATION ELECTRONIC COMPONENT AND WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：通信半导体集成电路，通信电子部件和无线通信系统
公开(公告)号：US20090068967A1
公开(公告)日：2009-03-12
申请号：US12263571
申请日：2008-11-03
申请人： Hiroaki Matsui , Taizo Yamawaki , Yoshiaki Harasawa , Steve Williams
发明人： Hiroaki Matsui , Taizo Yamawaki , Yoshiaki Harasawa , Steve Williams
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。

5. 发明授权

US08095094B2 Communication semiconductor integrated circuit, communication electronic component and wireless communication system 有权
标题翻译：通信半导体集成电路，通信电子元件和无线通信系统
公开(公告)号：US08095094B2
公开(公告)日：2012-01-10
申请号：US12263571
申请日：2008-11-03
申请人： Hiroaki Matsui , Taizo Yamawaki , Yoshiaki Harasawa , Steve Williams
发明人： Hiroaki Matsui , Taizo Yamawaki , Yoshiaki Harasawa , Steve Williams
IPC分类号： H01Q11/12 , H04B1/04
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。

6. 发明申请

US20060234656A1 Communication semiconductor integrated circuit, communication electronic component and wireless communication system 有权
标题翻译：通信半导体集成电路，通信电子元件和无线通信系统
公开(公告)号：US20060234656A1
公开(公告)日：2006-10-19
申请号：US11371108
申请日：2006-03-09
申请人： Hiroaki Matsui , Taizo Yamawaki , Yoshiaki Harasawa , Steve Williams
发明人： Hiroaki Matsui , Taizo Yamawaki , Yoshiaki Harasawa , Steve Williams
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。

7. 发明授权

US07116950B2 Direct-conversion transmitting circuit and integrated transmitting/receiving circuit 有权
标题翻译：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。

8. 发明授权

US07463876B2 Communication semiconductor integrated circuit, communication electronic component and wireless communication system 有权
标题翻译：通信半导体集成电路，通信电子元件和无线通信系统
公开(公告)号：US07463876B2
公开(公告)日：2008-12-09
申请号：US11371108
申请日：2006-03-09
申请人： Hiroaki Matsui , Taizo Yamawaki , Yoshiaki Harasawa , Steve Williams
发明人： Hiroaki Matsui , Taizo Yamawaki , Yoshiaki Harasawa , Steve Williams
IPC分类号： H04B1/28 , 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。

9. 发明申请

US20070021076A1 Direct-conversion transmitting circuit and integrated transmitting/receiving circuit 审中-公开
标题翻译：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
IPC分类号： H04B1/04 , H01Q11/12
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。

10. 发明申请

US20080113625A1 INTEGRATED CIRCUIT AND DEVICE FOR MOBILE COMMUNICATIONS 失效
标题翻译：集成电路和移动通信装置
公开(公告)号：US20080113625A1
公开(公告)日：2008-05-15
申请号：US11940733
申请日：2007-11-15
申请人： Koji Maeda , Satoshi Tanaka , Taizo Yamawaki , Yukinori Akamine , Masahiro Ito
发明人： Koji Maeda , Satoshi Tanaka , Taizo Yamawaki , Yukinori Akamine , Masahiro Ito
IPC分类号： H04B17/00
CPC分类号： H04B1/30
摘要： When generating an RF test signal for mismatch calibration for receiver in order to calibrate reception mismatch of an I-phase signal and a Q-phase signal that are output from demodulated signal processing circuits coupled to mixers for receiving, a Tx VCO avoids covering the higher frequency of an RF received signal in an FDD system. An RF test signal generating unit generates, in a calibration mode of a mismatch calibration for receiver circuit, the RF test signal by using an oscillation output signal of the Tx VCO and other circuits, and supplies the same to the mixers for receiving via a switch. The RF test signal has a frequency within an RF reception frequency band that is higher than that of an RF transmission signal with the maximum frequency band of multiband radio frequency communications. By switching the switch in a reception mode, an output of a low-noise amplifier that amplifies the RF received signal received by an antenna is supplied to each of the mixers for receiving.
摘要翻译：为了校准从耦合到混频器进行接收的解调信号处理电路输出的I相信号和Q相信号的接收不匹配，为接收机生成用于失配校准的RF测试信号时，Tx VCO避免覆盖较高的 FDD系统中RF接收信号的频率。 RF测试信号产生单元通过使用Tx VCO和其它电路的振荡输出信号在接收机电路的不匹配校准的校准模式中产生RF测试信号，并将其提供给用于经由开关接收的混频器。 RF测试信号具有比具有多频带无线电频率通信的最大频带的RF传输信号的RF接收频带内的频率。通过在接收模式下切换开关，将放大天线接收到的RF接收信号的低噪声放大器的输出提供给每个混频器进行接收。

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