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21. 发明授权

US06900700B2 Communication semiconductor integrated circuit and radio communication system 失效
标题翻译：通信半导体集成电路和无线电通信系统
公开(公告)号：US06900700B2
公开(公告)日：2005-05-31
申请号：US10373046
申请日：2003-02-26
申请人： Hirotaka Oosawa , Jiro Shinbo , Noriyuki Kurakami , Masumi Kasahara , Robert Astle Henshaw
发明人： Hirotaka Oosawa , Jiro Shinbo , Noriyuki Kurakami , Masumi Kasahara , Robert Astle Henshaw
IPC分类号： H03L7/08 , H03D3/00 , H03J1/00 , H03J7/06 , H03L7/089 , H03L7/10 , H03L7/18 , H03L7/187 , H03L7/193 , H04B1/40 , H04B1/26
CPC分类号： H03D3/008 , H03J1/005 , H03J7/06 , H03L7/0891 , H03L7/10 , H03L7/193
摘要： A communication semiconductor integrated circuit has an oscillator circuit forming part of a transmission PLL circuit fabricated on a single semiconductor chip together with an oscillator circuit forming part of a reception PLL circuit and an oscillator circuit for an intermediate frequency. The oscillator circuit forming part of the transmission PLL circuit is configured to be operable in a plurality of bands. A circuit for measuring the oscillating frequency of the oscillator circuit forming part of the transmission PLL circuit is also used for measuring the oscillating frequency of the oscillator circuit forming part of the reception PLL circuit or for measuring the oscillating frequency of the oscillator circuit for the intermediate frequency.
摘要翻译：通信半导体集成电路具有形成在单个半导体芯片上的传输PLL电路的一部分的振荡器电路以及形成接收PLL电路的一部分的振荡器电路和用于中频的振荡器电路。形成传输PLL电路的一部分的振荡器电路被配置为可在多个频带中操作。用于测量形成传输PLL电路的一部分的振荡电路的振荡频率的电路也用于测量形成接收PLL电路的一部分的振荡器电路的振荡频率或用于测量中间件的振荡器电路的振荡频率频率。

22. 发明授权

US07020444B2 High frequency semiconductor integrated circuit and radio communication system 失效
标题翻译：高频半导体集成电路和无线电通信系统
公开(公告)号：US07020444B2
公开(公告)日：2006-03-28
申请号：US10372922
申请日：2003-02-26
申请人： Jiro Shinbo , Hirotaka Oosawa , Noriyuki Kurakami , Masumi Kasahara , Robert Astle Henshaw
发明人： Jiro Shinbo , Hirotaka Oosawa , Noriyuki Kurakami , Masumi Kasahara , Robert Astle Henshaw
IPC分类号： H04B1/40
CPC分类号： H03L7/10 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B5/1265 , H03B2201/025 , H03D3/008 , H03J1/005 , H03J2200/10 , H03L7/0891 , H03L7/099 , H03L7/193
摘要： A communication semiconductor integrated circuit has an oscillator circuit forming part of a transmission PLL circuit fabricated on a single semiconductor chip together with an oscillator circuit forming part of a reception PLL circuit and an oscillator circuit for an intermediate frequency. The oscillator circuit for the transmission PLL circuit is configured to be operable in a plurality of bands. The communication semiconductor integrated circuit also comprises a circuit for measuring the oscillating frequency of the oscillator circuit for the transmission PLL circuit, and a storage circuit for storing the result of measurement made by the measuring circuit. A band to be used by the oscillator circuit for the transmission PLL circuit is determined based on values for setting the oscillating frequencies of the oscillator circuit forming part of the reception PLL circuit and the intermediate frequency oscillator circuit, and the result of measurement stored in the storage circuit.
摘要翻译：通信半导体集成电路具有形成在单个半导体芯片上的传输PLL电路的一部分的振荡器电路以及形成接收PLL电路的一部分的振荡器电路和用于中频的振荡器电路。用于传输PLL电路的振荡器电路被配置为可在多个频带中操作。通信半导体集成电路还包括用于测量用于传输PLL电路的振荡器电路的振荡频率的电路和用于存储由测量电路进行的测量结果的存储电路。用于传输PLL电路的振荡电路使用的频带基于用于设置构成接收PLL电路和中频振荡器电路的一部分的振荡电路的振荡频率的值和存储在传输PLL电路中的测量结果的值来确定存储电路。

23. 发明申请

US20080012649A1 Semiconductor integrated circuit with PLL circuit 审中-公开
标题翻译：半导体集成电路与PLL电路
公开(公告)号：US20080012649A1
公开(公告)日：2008-01-17
申请号：US11896658
申请日：2007-09-05
申请人： Jiro Shinbo , Satoshi Arayashiki , Hirotaka Oosawa , Toshiya Uozumi , Satoru Yamamoto
发明人： Jiro Shinbo , Satoshi Arayashiki , Hirotaka Oosawa , Toshiya Uozumi , Satoru Yamamoto
IPC分类号： H03L7/00
CPC分类号： H03L7/0898 , H03L7/093 , H04B1/0082
摘要： In a PLL circuit including an oscillator, a phase comparator, a charge pump circuit, and a loop filter, without providing a plurality of capacitative elements, that is, without increasing the occupied area so much, the characteristics of the PLL circuit can be adjusted according to manufacture variations in a resistive element and a capacitative element, and a loop filter can be formed on a chip. A resistive element and a capacitative element of a loop filter are formed on a semiconductor chip. As the resistive element, a plurality of elements having different resistance values are provided and switched by a switch, thereby enabling the resistance value to be adjusted. Current in a charge pump circuit is also made adjustable, and the current of the charge pump circuit is adjusted according to switching among the resistance values of the resistive elements.
摘要翻译：在没有提供多个电容元件的情况下，即不增加占用面积的振荡器，相位比较器，电荷泵电路和环路滤波器的PLL电路中，可以调整PLL电路的特性根据电阻元件和电容元件的制造变化，可以在芯片上形成环路滤波器。环路滤波器的电阻元件和电容元件形成在半导体芯片上。作为电阻元件，通过开关提供并切换具有不同电阻值的多个元件，从而能够调整电阻值。电荷泵电路中的电流也可调节，并且根据电阻元件的电阻值之间的切换来调节电荷泵电路的电流。

24. 发明授权

US07313369B2 Communication semiconductor integrated circuit and radio communication system 有权
标题翻译：通信半导体集成电路和无线电通信系统
公开(公告)号：US07313369B2
公开(公告)日：2007-12-25
申请号：US11122062
申请日：2005-05-05
申请人： Hirotaka Oosawa , Jiro Shinbo , Noriyuki Kurakami , Masumi Kasahara , Robert Astle Henshaw
发明人： Hirotaka Oosawa , Jiro Shinbo , Noriyuki Kurakami , Masumi Kasahara , Robert Astle Henshaw
IPC分类号： H04B1/40
CPC分类号： H03D3/008 , H03J1/005 , H03J7/06 , H03L7/0891 , H03L7/10 , H03L7/193
摘要： A communication semiconductor integrated circuit has an oscillator circuit forming part of a transmission PLL circuit fabricated on a single semiconductor chip together with an oscillator circuit forming part of a reception PLL circuit and an oscillator circuit for an intermediate frequency. The oscillator circuit forming part of the transmission PLL circuit is configured to be operable in a plurality of bands. A circuit for measuring the oscillating frequency of the oscillator circuit forming part of the transmission PLL circuit is also used for measuring the oscillating frequency of the oscillator circuit forming part of the reception PLL circuit or for measuring the oscillating frequency of the oscillator circuit for the intermediate frequency.
摘要翻译：通信半导体集成电路具有形成在单个半导体芯片上的传输PLL电路的一部分的振荡器电路以及形成接收PLL电路的一部分的振荡器电路和用于中频的振荡器电路。形成传输PLL电路的一部分的振荡器电路被配置为可在多个频带中操作。用于测量形成传输PLL电路的一部分的振荡电路的振荡频率的电路也用于测量形成接收PLL电路的一部分的振荡器电路的振荡频率或用于测量中间件的振荡器电路的振荡频率频率。

25. 发明授权

US06597191B2 Semiconductor integrated circuit device 失效
标题翻译：半导体集成电路器件
公开(公告)号：US06597191B2
公开(公告)日：2003-07-22
申请号：US10036460
申请日：2002-01-07
申请人： Hirotaka Oosawa , Masumi Kasahara , Kazuo Watanabe
发明人： Hirotaka Oosawa , Masumi Kasahara , Kazuo Watanabe
IPC分类号： G01R3102
CPC分类号： G01R31/3172 , G01R31/3167
摘要： An input/output pin for test corresponding to a test circuit of the digital section is used in common as the input/output pin for usual operation of the analog section, the selection switches are respectively provided between the relevant analog pin and analog circuit and on a signal line up to the test circuit of the digital section from the relevant analog pin and the switches are provided at both end portions of the signal line between the test circuit of digital section and the input/output pin for common use in order to fix the voltage of the signal line to the predetermined voltage such as the ground voltage during the usual operation.
摘要翻译：与数字部分的测试电路相对应的用于测试的输入/输出引脚用作模拟部分的通常操作的输入/输出引脚，选择开关分别设置在相关的模拟引脚和模拟电路之间，并在在数字部分的测试电路和用于常用的输入/输出引脚之间的信号线的两端提供直到来自相关模拟引脚的数字部分的测试电路的信号线和开关，以便固定在正常操作期间信号线的电压等于预定电压，例如接地电压。

26. 发明申请

US20060220757A1 Semiconductor integrated circuit for communication 审中-公开
标题翻译：半导体集成电路通讯
公开(公告)号：US20060220757A1
公开(公告)日：2006-10-05
申请号：US11390452
申请日：2006-03-28
申请人： Kunito Satake , Hirotaka Oosawa , Isao Ikuta , Satoru Yamamoto
发明人： Kunito Satake , Hirotaka Oosawa , Isao Ikuta , Satoru Yamamoto
IPC分类号： H03B5/12
CPC分类号： H03L7/107 , H03B5/1215 , H03B5/1228 , H03B5/124 , H03B5/1265 , H03B2201/025 , H03J2200/10 , H03L7/07 , H03L7/099 , H03L7/183
摘要： A radio frequency IC includes a PLL circuit and prevents a PLL loop from being easily unlocked upon fluctuation of VCO oscillation frequencies due to a change in temperature. The PLL loop includes a VCO capable of switching oscillation frequency bands, a variable frequency divider, a phase comparison circuit, and a loop filter. A switching switch can apply one of plural predetermined set voltages to the VCO in place of a voltage of the loop filter in an open state in which the loop filter is disconnected from the VCO. The radio frequency IC als has a decision circuit that decides whether the phase of output of the variable frequency divider is ahead of or lags behind that of a reference signal of a predetermined frequency, and an automatic band switching circuit that generates a signal for switching VCO frequency bands, based on output of the decision circuit.
摘要翻译：无线电频率IC包括PLL电路，并且防止由于温度变化导致VCO振荡频率波动时PLL环路容易解锁。 PLL环路包括能够切换振荡频带的VCO，可变分频器，相位比较电路和环路滤波器。切换开关可以在环路滤波器与VCO断开的打开状态中将代替多个预定设定电压中的一个代替环路滤波器的电压。射频IC als具有决定电路，判断可变分频器的输出的相位是否在预定频率的参考信号的前面，或者落后于预定频率的参考信号的输出相位，以及产生用于开关VCO的信号的自动频带切换电路频段，基于判决电路的输出。

27. 发明授权

US07085587B2 Signal processing semiconductor integrated circuit device and wireless communication system 有权
公开(公告)号：US07085587B2
公开(公告)日：2006-08-01
申请号：US10033792
申请日：2002-01-03
申请人： Ikuya Oono , Toshiki Matsui , Hirotaka Oosawa
发明人： Ikuya Oono , Toshiki Matsui , Hirotaka Oosawa
IPC分类号： H04B1/04
CPC分类号： H04B1/30 , H03D3/002 , H03D7/1433 , H03D7/1458 , H03D2200/0025 , H03D2200/0033 , H03D2200/0043 , H03D2200/0047 , H03D2200/009
摘要： Disclosed herein is a direct conversion type signal processing semiconductor integrated circuit device capable of suppressing a DC voltage variation in the output of a variable gain amplifier upon the transition to a reception mode, reproducing stable receiving characteristics and improving receiving sensitivity. In the signal processing semiconductor integrated circuit device, voltage reference circuits for generating reference voltages for controlling or restricting currents for current sources for supplying operating currents for amplifiers constituting a reception-system circuit are boosted upon the transition from an idle mode or the like to the reception mode to allow the currents to flow into the constant-current sources of the amplifiers after the stabilization of the generated reference voltages.

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