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21. 发明申请

US20120007667A1 AUTOMATIC CUTOFF FREQUENCY ADJUSTING CIRCUIT AND PORTABLE DIGITAL ASSISTANT 有权
标题翻译：自动切割频率调节电路和便携式数字助理
公开(公告)号：US20120007667A1
公开(公告)日：2012-01-12
申请号：US13180303
申请日：2011-07-11
申请人： Yusaku KATSUBE , Yutaka IGARASHI , Akio YAMAMOTO
发明人： Yusaku KATSUBE , Yutaka IGARASHI , Akio YAMAMOTO
IPC分类号： H03J7/06
CPC分类号： H03H11/1291 , H03J2200/08 , H03J2200/10
摘要： The disclosed invention enables the cutoff frequency of a filter to be automatically adjusted to an arbitrary setting value within the adjustment range. An automatic cutoff frequency adjusting circuit includes a voltage/current converter circuit, a charge circuit, a discharge circuit, a digital capacitance having a plurality of electrostatic capacitances, a comparator for comparing a voltage inputted to the digital capacitance with a reference voltage, and a capacitance control circuit for controlling the digital capacitance. The time until the comparator detects that the voltage inputted to the digital capacitance is higher than the reference voltage after a reset signal has become a predetermined logic level is measured, and the digital capacitance is controlled by repeating, under a predetermined condition, processing for obtaining a next setting value of the digital capacitance, based on a measurement result, a target value of the digital capacitance, and the current value of the digital capacitance.
摘要翻译：所公开的发明使得能够将滤波器的截止频率自动调整到调整范围内的任意设定值。自动截止频率调节电路包括电压/电流转换器电路，充电电路，放电电路，具有多个静电电容的数字电容，用于将输入到数字电容的电压与参考电压进行比较的比较器，以及用于控制数字电容的电容控制电路。在比较器检测到在复位信号已经变为预定逻辑电平之后，比较器检测到输入到数字电容的电压高于参考电压的时间，并且通过在预定条件下重复以获得的处理来控制数字电容基于测量结果，数字电容的目标值和数字电容的当前值的数字电容的下一个设定值。

22. 发明申请

US20100265408A1 TRANSMISSION METHOD IN TRANSMISSION SYSTEM 审中-公开
标题翻译：传输系统传输方法
公开(公告)号：US20100265408A1
公开(公告)日：2010-10-21
申请号：US12757526
申请日：2010-04-09
申请人： Yusaku Katsube , Isao Hoda , Katsuya Miyata , Hitoshi Akiyama
发明人： Yusaku Katsube , Isao Hoda , Katsuya Miyata , Hitoshi Akiyama
IPC分类号： H04N5/38
CPC分类号： H04L1/18
摘要： Within a short-distance wireless transmitting apparatus for use of TV, for transmitting video without interruption and with low power consumption, a transmitter portion having a reception frequency differing from a transmission frequency is provided on a station side having a video source, and a receiver portion for receiving the frequency corresponding to a reception frequency band of the station side and also a transmitter portion for transmitting the frequency corresponding to a reception frequency band of the station side are provided on a panel side for displaying, in the structure thereof, wherein transmission/reception can be operated, simultaneously, by FDD separating in frequency for transmission.The frequency of the transmitter on the panel side is determined upon basis of a scan result, while scanning a vacant frequency on the station side, and thereby enabling to escape from an interference from other system, when the panel executes the transmission, in the structure thereof.
摘要翻译：在用于TV的短距离无线发送装置中，在不间断地传输视频和低功耗的情况下，在具有视频源的站侧提供具有与发送频率不同的接收频率的发送机部分，以及接收机用于接收对应于站侧的接收频带的频率的部分以及用于发送对应于站侧的接收频带的频率的发射机部分设置在面板侧，用于在其结构中显示其中传输 /接收可以同时通过FDD分离频率进行传输。基于扫描结果确定发射机在面板侧的频率，同时扫描站侧的空闲频率，从而当该面板执行传输时能够从其他系统的干扰中逃脱其中。

23. 发明申请

US20090310524A1 RECEIVER AND RECEIVING METHOD OF THE RECEIVER 失效
标题翻译：接收器的接收器和接收方法
公开(公告)号：US20090310524A1
公开(公告)日：2009-12-17
申请号：US12472741
申请日：2009-05-27
申请人： Yusaku KATSUBE , Masaaki YAMADA , Junichi TAKAHASHI
发明人： Yusaku KATSUBE , Masaaki YAMADA , Junichi TAKAHASHI
IPC分类号： G08C17/02 , H04L27/22
CPC分类号： H04L27/3854 , H04L7/041 , H04L27/0014
摘要： The receiver includes a low noise amplifier, a local signal generator, a first mixer, a second mixer, a first amplifier, a second amplifier, a first A/D converter, a second A/D converter, and a signal level detection unit. A detection signal from at least one terminal of the first A/D converter is supplied to an input terminal of the signal level detection unit, thereby generating a reception start signal from the output terminal. Before an RF reception signal is received, a first signal processing unit containing the first mixer, the first amplifier, and the first A/D converter is controlled to an active state, and a second signal processing unit containing the second mixer, the second amplifier, and the second A/D converter is controlled to a low power consumption state. After the RF reception signal is received, the second signal processing unit is controlled to the active state.
摘要翻译：接收机包括低噪声放大器，本地信号发生器，第一混频器，第二混频器，第一放大器，第二放大器，第一A / D转换器，第二A / D转换器和信号电平检测单元。来自第一A / D转换器的至少一个端子的检测信号被提供给信号电平检测单元的输入端，从而从输出端产生接收开始信号。在接收到RF接收信号之前，将包含第一混频器，第一放大器和第一A / D转换器的第一信号处理单元控制为有效状态，以及包含第二混频器的第二信号处理单元，第二放大器并且第二A / D转换器被控制到低功耗状态。在RF接收信号被接收之后，第二信号处理单元被控制到活动状态。

24. 发明申请

US20080119153A1 Multiband Wireless Device and Semiconductor Integrated Circuit 失效
标题翻译：多频无线设备和半导体集成电路
公开(公告)号：US20080119153A1
公开(公告)日：2008-05-22
申请号：US11769151
申请日：2007-06-27
申请人： Yoshikazu Sugiyama , Satoshi Adachi , Yusaku Katsube , Masazumi Tone , Taku Takaki
发明人： Yoshikazu Sugiyama , Satoshi Adachi , Yusaku Katsube , Masazumi Tone , Taku Takaki
IPC分类号： H04B1/06 , H03F1/56
CPC分类号： H03F3/195 , H03F1/22 , H03F1/565 , H03F3/24 , H03F2200/108 , H03F2200/111 , H03F2200/294 , H03F2200/381 , H03F2200/387 , H03F2200/391 , H03F2200/451 , H03F2200/519 , H03F2200/75
摘要： When switching over from a portable telephone system of 800 MHz band to a UWB communication system of 9 GHz band, depending upon a signal for changing over a high pass filter and a low pass filter, a reactance element, which is determined to be matching with a load Z of the high pass filter, is connected to an output terminal of a transmitting power amplifier. With this, it is possible to achieve a multi-band or multi-mode wireless receiver of using a frequency band from 800 MHz to 10 GHz, without an enlargement of a circuit scale and an increase of costs.
摘要翻译：当从800MHz频带的便携式电话系统切换到9GHz频带的UWB通信系统时，根据用于切换高通滤波器和低通滤波器的信号，确定为匹配的电抗元件高通滤波器的负载Z连接到发射功率放大器的输出端。由此，可以实现使用800MHz至10GHz的频带的多频带或多模式无线接收机，而不会扩大电路规模并增加成本。

25. 发明授权

US08301208B2 Receiver and receiving method of the receiver 失效
标题翻译：接收机的接收和接收方法
公开(公告)号：US08301208B2
公开(公告)日：2012-10-30
申请号：US12472741
申请日：2009-05-27
申请人： Yusaku Katsube , Masaaki Yamada , Junichi Takahashi
发明人： Yusaku Katsube , Masaaki Yamada , Junichi Takahashi
IPC分类号： H04M1/00 , H04B1/38
CPC分类号： H04L27/3854 , H04L7/041 , H04L27/0014
摘要： The receiver includes a low noise amplifier, a local signal generator, a first mixer, a second mixer, a first amplifier, a second amplifier, a first A/D converter, a second A/D converter, and a signal level detection unit. A detection signal from at least one terminal of the first A/D converter is supplied to an input terminal of the signal level detection unit, thereby generating a reception start signal from the output terminal. Before an RF reception signal is received, a first signal processing unit containing the first mixer, the first amplifier, and the first A/D converter is controlled to an active state, and a second signal processing unit containing the second mixer, the second amplifier, and the second A/D converter is controlled to a low power consumption state. After the RF reception signal is received, the second signal processing unit is controlled to the active state.
摘要翻译：接收机包括低噪声放大器，本地信号发生器，第一混频器，第二混频器，第一放大器，第二放大器，第一A / D转换器，第二A / D转换器和信号电平检测单元。来自第一A / D转换器的至少一个端子的检测信号被提供给信号电平检测单元的输入端，从而从输出端产生接收开始信号。在接收到RF接收信号之前，将包含第一混频器，第一放大器和第一A / D转换器的第一信号处理单元控制为有效状态，以及包含第二混频器的第二信号处理单元，第二放大器并且第二A / D转换器被控制到低功耗状态。在RF接收信号被接收之后，第二信号处理单元被控制到活动状态。

26. 发明授权

US07813710B2 Receiving circuit 有权
标题翻译：接收电路
公开(公告)号：US07813710B2
公开(公告)日：2010-10-12
申请号：US11718101
申请日：2005-02-23
申请人： Yusaku Katsube , Akio Yamamoto
发明人： Yusaku Katsube , Akio Yamamoto
IPC分类号： H04B1/10
CPC分类号： H04B1/1018
摘要： The present invention is a receiving circuit used for a cellular phone that is reduced in size and can realize low power consumption. In a signal reception circuit that is used in a cellular phone that perform transmission and reception of a plurality of band wireless signals and includes a low-pass filter for removing blockers unnecessary for signal reception, the low-pass filter 104 is composed of a plurality of filters composed of a plurality of different circuit configurations and having a plurality of different pole positions, switching between a filter for blocker removal and a filter configuration with reduced sensitivity degradation is performed by combining a plurality of filters for each signal reception band, and by performing power-off of an unnecessary filter portion in the filter configuration, power consumption is reduced. By constituting a plurality of different filters using filters mutually complementing their characteristics, a redundant filter configuration can be avoided, so that the area thereof can be suppressed to necessity minimum, and cost can be reduced.
摘要翻译：本发明是用于移动电话的接收电路，其尺寸减小并且可以实现低功耗。在用于执行多个频带无线信号的发送和接收的蜂窝电话中使用的信号接收电路，并且包括用于去除不需要信号接收的阻塞器的低通滤波器，低通滤波器104由多个由多个不同的电路结构构成并且具有多个不同的极位置的滤波器，通过组合用于每个信号接收频带的多个滤波器，并且通过在滤波器结构中执行不需要的滤波器部分的断电，功耗降低。通过使用与其特性相互补充的滤波器构成多个不同的滤波器，可以避免冗余滤波器构造，从而可以将其面积抑制到必要最小，并且可以降低成本。

27. 发明授权

US07689201B2 Communication terminal equipment 有权
标题翻译：通讯终端设备
公开(公告)号：US07689201B2
公开(公告)日：2010-03-30
申请号：US11897432
申请日：2007-08-29
申请人： Yusaku Katsube , Koichi Terui
发明人： Yusaku Katsube , Koichi Terui
IPC分类号： H04M11/04
CPC分类号： H04W4/90 , H04W4/20 , H04W76/30 , H04W76/50
摘要： A cellular phone having a telephone communication unit and a data communication unit is provided with the function of notifying a user of emergency data communication immediately even when the emergency data communication was received while a call was in progress. There is provided a communication terminal equipment according to the present invention, which includes a data communication unit which receives emergency data communication, a display unit which displays the contents of the received data communication thereon, and a communication unit which communicates with a base station by phone or the like. The communication unit establishes a call link through a cellular phone network, and the data communication unit allows received data to interrupt a call upon emergency, displays it on the display unit and notifies a user that emergency data has been received.
摘要翻译：具有电话通信单元和数据通信单元的蜂窝电话具有即使当呼叫进行时接收到紧急数据通信时也立即通知用户紧急数据通信的功能。提供了根据本发明的通信终端设备，其包括接收紧急数据通信的数据通信单元，显示接收到的数据通信的内容的显示单元，以及通信单元，其与基站通信电话等。通信单元通过蜂窝电话网络建立呼叫链接，并且数据通信单元允许接收的数据在紧急情况下中断呼叫，将其显示在显示单元上并通知用户已经接收到紧急数据。

28. 发明申请

US20090258626A1 FILTER CIRCUIT AND RECEIVING APPARATUS 失效
标题翻译：滤波电路和接收装置
公开(公告)号：US20090258626A1
公开(公告)日：2009-10-15
申请号：US12419355
申请日：2009-04-07
申请人： Masaaki YAMADA , Yusaku KATSUBE , Junichi TAKAHASHI , Toshihito HABUKA , Fumihito YAMAGUCHI
发明人： Masaaki YAMADA , Yusaku KATSUBE , Junichi TAKAHASHI , Toshihito HABUKA , Fumihito YAMAGUCHI
IPC分类号： H04B1/06 , H03H7/00 , H04B1/16
CPC分类号： H03H7/0153 , H03H7/1708 , H03H7/24 , H03H7/425
摘要： A filter circuit includes first capacitors, second capacitors capable of altering a cutoff frequency by being connected in parallel with the first capacitors, first switches for connecting the second capacitors in parallel with the first capacitors, and charging circuits for the second capacitors. The charging circuits include second switches, and resistances for attenuating the amplitudes of input voltages to be fed to the second capacitors, by being connected in series with the second capacitors. The second capacitors are charged through the resistances in a state where the first switches are turned OFF and where the second switches are turned ON. Thus, a DC offset which is ascribable to the cutoff frequency switching of a filter is reduced.
摘要翻译：滤波器电路包括第一电容器，能够通过与第一电容器并联连接来改变截止频率的第二电容器，用于将第二电容器与第一电容器并联连接的第一开关和用于第二电容器的充电电路。充电电路包括第二开关和用于衰减要馈送到第二电容器的输入电压的振幅的电阻，通过与第二电容器串联连接。在第一开关断开的状态和第二开关导通的状态下，通过电阻对第二电容器进行充电。因此，降低了归因于滤波器的截止频率切换的DC偏移。

29. 发明申请

US20070189361A1 RF Transceiver Using Hopping Frequency Synthesizer 失效
标题翻译：射频收发器使用跳频合成器
公开(公告)号：US20070189361A1
公开(公告)日：2007-08-16
申请号：US11737802
申请日：2007-04-20
申请人： YOSHIKAZU SUGIYAMA , Isao Ikuta , Yusaku Katsube
发明人： YOSHIKAZU SUGIYAMA , Isao Ikuta , Yusaku Katsube
IPC分类号： H04B1/00
CPC分类号： H04L27/2067 , H03C1/52 , H03C3/00 , H04B1/7136 , H04B1/71635
摘要： A technique of frequency hopping communication capable of high-speed switching of a plurality of signals having ultra-wide band 528 MHz bandwidth at high-speed and setting and switching a band center frequency and the number of bands arbitrary is provided. A radio transceiver has a frequency hopping communication function of UWB system for switching the ultra wide band signal. In the device, high-speed frequency hopping is realized by controlling an SSB mixer in a local oscillator circuit and switching the frequency of a DDS. The device sets NCO data to the DDS and switches a quadrature phase signal of an output, and switches a signal input of an input terminal of the SSB mixer by a control of a phase switching switch. One of a sum component and a difference component of a mixture of first and second quadrature phase signals is outputted from the output terminal of the SSB mixer.
摘要翻译：提供一种跳频通信技术，其能够高速切换具有超宽带528MHz带宽的多个信号，并且设置和切换频带中心频率和频带数量的跳频通信。无线电收发器具有用于切换超宽带信号的UWB系统的跳频通信功能。在设备中，通过在本地振荡器电路中控制SSB混频器并切换DDS的频率来实现高速跳频。该装置将NCO数据设置为DDS并切换输出的正交相位信号，并通过相位切换开关的控制切换SSB混频器的输入端的信号输入。从SSB混频器的输出端子输出第一和第二正交相位信号的混合的和分量和差分分量之一。

30. 发明申请

US20060181362A1 Voltage-controlled oscillator and RF-IC 审中-公开
标题翻译：压控振荡器和RF-IC
公开(公告)号：US20060181362A1
公开(公告)日：2006-08-17
申请号：US11280819
申请日：2005-11-17
申请人： Isao Ikuta , Akio Yamamoto , Yusaku Katsube , Toshiya Uozumi , Yasuyuki Kimura
发明人： Isao Ikuta , Akio Yamamoto , Yusaku Katsube , Toshiya Uozumi , Yasuyuki Kimura
IPC分类号： H03B5/08
CPC分类号： H03B5/1841 , H03B5/1212 , H03B5/1228 , H03B5/1243 , H03B5/1253
摘要： There are provided a voltage-controlled oscillator and an RF-IC for W-CDMA, which are capable of ensuring a wide frequency range and improving oscillation stability. The voltage-controlled oscillator (RF-IC) includes: switching A and B inductors generating a magnetic interaction between resonant A and B inductors of a resonant circuit; and an A_NMOS, a B_NMOS, a C_NMOS, and D_NMOS as switch/load means having together a function of changing an inductance value by the magnetic interaction between the resonant A and B inductors and the switching A and B inductors and a function of serving as loads of the switching A and B inductors. The A_NMOS, the B_NMOS, the C_NMOS, and the D_NMOS are turned ON/OFF by a control signal so as to control the mutual induction, whereby the oscillation frequency is switched by changing the inductance value of the resonant circuit. Also, oscillation stability is improved by increasing the inductance value.
摘要翻译：提供了一种用于W-CDMA的压控振荡器和RF-IC，其能够确保较宽的频率范围并提高振荡稳定性。压控振荡器（RF-IC）包括：开关A和B电感器，其在谐振电路的谐振A和B电感器之间产生磁相互作用; 以及作为开关/负载的A_NMOS，B_NMOS，C_NMOS和D_NMOS一起具有通过谐振A和B电感器与开关A和B电感器之间的磁相互作用改变电感值的功能，以及用作开关A和B电感的负载。通过控制信号使A_NMOS，B_NMOS，C_NMOS和D_NMOS变为ON / OFF，从而控制互感，从而通过改变谐振电路的电感值来切换振荡频率。此外，通过增加电感值来提高振荡稳定性。

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