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21. 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。

22. 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。

23. 发明授权

US08396430B2 Semiconductor integrated circuit device and wireless communication system 有权
标题翻译：半导体集成电路器件和无线通信系统
公开(公告)号：US08396430B2
公开(公告)日：2013-03-12
申请号：US13114340
申请日：2011-05-24
申请人： Taizo Yamawaki , Tomonori Tanoue , Kazuaki Hori
发明人： Taizo Yamawaki , Tomonori Tanoue , Kazuaki Hori
IPC分类号： H04B1/44
CPC分类号： H04B1/006 , H04B1/52
摘要： Disclosed are a semiconductor integrated circuit device and a wireless communication system that are capable of improving reception sensitivity. The wireless communication system includes, for instance, a first duplexer, a second duplexer, a first low-noise amplifier circuit, and a second low-noise amplifier circuit. A transmission band compliant with a communication standard is split into two segments for use, namely, low- and high-frequency transmission bands. A reception band compliant with the communication standard is split into two segments for use, namely, low- and high-frequency reception bands. The first duplexer uses the low-frequency transmission band and low-frequency reception band as passbands. The second duplexer uses the high-frequency transmission band and high-frequency reception band as passbands. A signal received from the first duplexer and a signal received from the second duplexer are respectively amplified by the first and the second low-noise amplifier circuits, which are respectively provided to handle such signals.
摘要翻译：公开了能够提高接收灵敏度的半导体集成电路装置和无线通信系统。无线通信系统包括例如第一双工器，第二双工器，第一低噪声放大器电路和第二低噪声放大器电路。符合通信标准的传输频带被分成两个段，即低频和高频传输频带。符合通信标准的接收频段被分为两段供低频和高频接收频段使用。第一双工器使用低频传输频带和低频接收频带作为通带。第二双工器使用高频传输频带和高频接收频带作为通带。从第一双工器接收的信号和从第二双工器接收的信号分别由分别提供以处理这种信号的第一和第二低噪声放大器电路放大。

24. 发明申请

US20120069876A1 TRANSCEIVER 失效
标题翻译：收发器
公开(公告)号：US20120069876A1
公开(公告)日：2012-03-22
申请号：US13238249
申请日：2011-09-21
申请人： Hiroshi Kamizuma , Satoshi Tanaka , Taizo Yamawaki , Yukinori Akamine , Koji Maeda
发明人： Hiroshi Kamizuma , Satoshi Tanaka , Taizo Yamawaki , Yukinori Akamine , Koji Maeda
IPC分类号： H04B1/38
CPC分类号： H04B1/0082
摘要： A transceiver includes an oscillator and a plurality of communication blocks. Each of the communication blocks includes frequency dividers and mixers. Frequency dividing number of the frequency divider included in one communication block is set to an even-numbered integer, and transmission local signals supplied from the frequency dividers to the mixer become quadrature signals having a phase difference of 90 degrees. The frequency dividing number of another frequency divider in the another communication block is set to a non-integer, and communication local signals supplied from the frequency divider to the mixers become non-quadrature signals having a phase difference at a predetermined offset angle from 90 degrees. The transceiver further includes a converting unit for giving a compensation offset amount having almost the same absolute value and having a polarity opposite to that of the offset angle to communication analog signals related to the mixer of the another communication block.
摘要翻译：收发机包括振荡器和多个通信块。每个通信块包括分频器和混频器。包含在一个通信块中的分频器的分频数被设置为偶数整数，并且从分频器提供给混频器的发送本地信号变为具有90度相位差的正交信号。将另一通信块中的另一个分频器的分频数设置为非整数，并且从分频器提供给混频器的通信本地信号变为具有从90度的预定偏移角的相位差的非正交信号。收发器还包括转换单元，用于给出具有与相对于另一通信块的混频器相关的通信模拟信号具有几乎相同的绝对值并且具有与偏移角的极性相反的极性的补偿偏移量。

25. 发明申请

US20090156135A1 TRANSCEIVER 有权
标题翻译：收发器
公开(公告)号：US20090156135A1
公开(公告)日：2009-06-18
申请号：US12336178
申请日：2008-12-16
申请人： Hiroshi Kamizuma , Satoshi Tanaka , Taizo Yamawaki , Yukinori Akamine , Koji Maeda
发明人： Hiroshi Kamizuma , Satoshi Tanaka , Taizo Yamawaki , Yukinori Akamine , Koji Maeda
IPC分类号： H04B1/38 , H04B1/16
CPC分类号： H04B1/0082
摘要： A transceiver includes an oscillator and a plurality of communication blocks. Each of the communication blocks includes frequency dividers and mixers. Frequency dividing number of the frequency divider included in one communication block is set to an even-numbered integer, and transmission local signals supplied from the frequency dividers to the mixer become quadrature signals having a phase difference of 90 degrees. The frequency dividing number of another frequency divider in the another communication block is set to a non-integer, and communication local signals supplied from the frequency divider to the mixers become non-quadrature signals having a phase difference at a predetermined offset angle from 90 degrees. The transceiver further includes a converting unit for giving a compensation offset amount having almost the same absolute value and having a polarity opposite to that of the offset angle to communication analog signals related to the mixer of the another communication block. Increase in the number of voltage-controlled oscillators for multiband communication, broadening of the band, and increase in phase noise can be reduced.
摘要翻译：收发机包括振荡器和多个通信块。每个通信块包括分频器和混频器。包含在一个通信块中的分频器的分频数被设置为偶数整数，并且从分频器提供给混频器的发送本地信号变为具有90度相位差的正交信号。将另一通信块中的另一个分频器的分频数设置为非整数，并且从分频器提供给混频器的通信本地信号变为具有从90度的预定偏移角的相位差的非正交信号。收发器还包括转换单元，用于给出具有与相对于另一通信块的混频器相关的通信模拟信号具有几乎相同的绝对值并且具有与偏移角的极性相反的极性的补偿偏移量。可以减少用于多频带通信的压控振荡器的数量的增加，频带的扩大以及相位噪声的增加。

26. 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。

27. 发明申请

US20050221855A1 Radio frequency device and mobile communication terminal using the same 失效
标题翻译：射频设备和移动通信终端使用相同
公开(公告)号：US20050221855A1
公开(公告)日：2005-10-06
申请号：US11028925
申请日：2005-01-05
申请人： Akira Kuriyama , Taizo Yamawaki , Satoshi Tanaka
发明人： Akira Kuriyama , Taizo Yamawaki , Satoshi Tanaka
IPC分类号： H04B1/44 , H03F3/60 , H04B1/04 , H04M1/00
CPC分类号： H04B1/0483 , H04B1/0458
摘要： There is provided a radio frequency circuit device for multi-band and multi-mode which is low in a circuit loss, and a mobile communication terminal using the radio frequency circuit device. The radio frequency circuit device has a first path 110 that includes an amplifier 10a that amplifies signals of at least two modulation techniques in power, a matching network 20 that is connected to the amplifier and a duplexer 50 and allows the matching network to be coupled with an antenna, and a second path 111 that does not include the duplexer and allows the matching network to be coupled with the antenna. The first path is selected when the amplifier amplifies one of the signals of at least two modulation techniques, and the second path is selected when the amplifier amplifies another signal. An output impedance of the amplifier is matched with an impedance when viewing the antenna side from the amplifier in the first path and the second path.
摘要翻译：提供了一种电路损耗低的用于多频和多模的射频电路装置，以及使用射频电路装置的移动通信终端。射频电路装置具有第一路径110，其包括放大器10A，其放大至少两个功率调制技术的信号;连接到放大器的匹配网络20和双工器50，并允许匹配网络耦合以及不包括双工器并允许匹配网络与天线耦合的第二路径111。当放大器放大至少两个调制技术的信号之一时，选择第一路径，并且当放大器放大另一信号时选择第二路径。当从第一路径和第二路径中的放大器观看天线侧时，放大器的输出阻抗与阻抗匹配。

28. 发明授权

US08359067B2 Radio frequency device and mobile communication terminal using the same 失效
标题翻译：射频设备和移动通信终端使用相同
公开(公告)号：US08359067B2
公开(公告)日：2013-01-22
申请号：US13197684
申请日：2011-08-03
申请人： Akira Kuriyama , Taizo Yamawaki , Satoshi Tanaka
发明人： Akira Kuriyama , Taizo Yamawaki , Satoshi Tanaka
IPC分类号： H04M1/00
CPC分类号： H04B1/0483 , H04B1/0458
摘要： There is provided a radio frequency circuit device for multi-band and multi-mode which is low in a circuit loss, and a mobile communication terminal using the radio frequency circuit device. The radio frequency circuit device has a first path 110 that includes an amplifier 10a that amplifies signals of at least two modulation techniques in power, a matching network 20 that is connected to the amplifier and a duplexer 50 and allows the matching network to be coupled with an antenna, and a second path 111 that does not include the duplexer and allows the matching network to be coupled with the antenna. The first path is selected when the amplifier amplifies one of the signals of at least two modulation techniques, and the second path is selected when the amplifier amplifies another signal. An output impedance of the amplifier is matched with an impedance when viewing the antenna side from the amplifier in the first path and the second path.
摘要翻译：提供了一种电路损耗低的用于多频和多模的射频电路装置，以及使用射频电路装置的移动通信终端。射频电路装置具有第一路径110，其包括放大器10a，其放大至少两个功率调制技术的信号，连接到放大器的匹配网络20和双工器50，并允许匹配网络与天线和第二路径111，其不包括双工器并且允许匹配网络与天线耦合。当放大器放大至少两个调制技术的信号之一时，选择第一路径，并且当放大器放大另一信号时选择第二路径。当从第一路径和第二路径中的放大器观看天线侧时，放大器的输出阻抗与阻抗匹配。

29. 发明授权

US08346180B2 Transceiver 失效
标题翻译：收发器
公开(公告)号：US08346180B2
公开(公告)日：2013-01-01
申请号：US13238249
申请日：2011-09-21
申请人： Hiroshi Kamizuma , Satoshi Tanaka , Taizo Yamawaki , Yukinori Akamine , Koji Maeda
发明人： Hiroshi Kamizuma , Satoshi Tanaka , Taizo Yamawaki , Yukinori Akamine , Koji Maeda
IPC分类号： H04B1/38
CPC分类号： H04B1/0082
摘要： A transceiver includes an oscillator and a plurality of communication blocks. Each of the communication blocks includes frequency dividers and mixers. Frequency dividing number of the frequency divider included in one communication block is set to an even-numbered integer, and transmission local signals supplied from the frequency dividers to the mixer become quadrature signals having a phase difference of 90 degrees. The frequency dividing number of another frequency divider in the another communication block is set to a non-integer, and communication local signals supplied from the frequency divider to the mixers become non-quadrature signals having a phase difference at a predetermined offset angle from 90 degrees. The transceiver further includes a converting unit for giving a compensation offset amount having almost the same absolute value and having a polarity opposite to that of the offset angle to communication analog signals related to the mixer of the another communication block.
摘要翻译：收发机包括振荡器和多个通信块。每个通信块包括分频器和混频器。包含在一个通信块中的分频器的分频数被设置为偶数整数，并且从分频器提供给混频器的发送本地信号变为具有90度相位差的正交信号。将另一通信块中的另一个分频器的分频数设置为非整数，并且从分频器提供给混频器的通信本地信号变为具有从90度的预定偏移角的相位差的非正交信号。收发器还包括转换单元，用于给出具有与相对于另一通信块的混频器相关的通信模拟信号具有几乎相同的绝对值并且具有与偏移角的极性相反的极性的补偿偏移量。

30. 发明授权

US08275325B2 Transceiver 失效
标题翻译：收发器
公开(公告)号：US08275325B2
公开(公告)日：2012-09-25
申请号：US13303103
申请日：2011-11-22
申请人： Satoshi Tanaka , Hiroshi Kamizuma , Koji Maeda , Sungwoo Cha , Yukinori Akamine , Taizo Yamawaki
发明人： Satoshi Tanaka , Hiroshi Kamizuma , Koji Maeda , Sungwoo Cha , Yukinori Akamine , Taizo Yamawaki
IPC分类号： H04B1/38
CPC分类号： H04B1/28
摘要： The transmitter of the transceiver includes: a transmitter-side mixers of a transmitter-side modulator; a transmitter-side voltage-controlled oscillator; and a transmitter-side divider. The divider having a dividing factor of a non-integral number is supplied with an oscillating output of the oscillator. A pair of non-quadrature local signals having a phase difference of 90° plus a predetermined offset angle is produced by the divider and supplied to the mixers. The transmitter includes a phase-shift unit which converts a pair of quadrature transmit signals having a phase difference of about 90° on an analog basis into a pair of non-quadrature shifted transmit signals. Consequently, quadrature modulation is performed by the mixers. Use of a similar configuration enables the reduction in interference of an RF signal with local signals supplied to receiver-side mixers of the receiver.
摘要翻译：收发器的发射机包括：发射机侧调制器的发射机侧混频器; 发射机侧压控振荡器; 和发射机侧分频器。具有非积分数的分频因子的分频器被提供有振荡器的振荡输出。具有90°相位差和预定偏移角的一对非正交本地信号由分频器产生并提供给混频器。发射机包括相移单元，其将具有大约90°的相位差的一对正交发射信号在模拟上转换成一对非正交移位的发射信号。因此，正交调制由混频器执行。使用类似的配置使得能够减少RF信号与提供给接收机的接收机侧混频器的本地信号的干扰。

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