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1. 发明申请

US20080309413A1 GAIN SWITCHING LOW-NOISE AMPLIFIER CIRCUIT 失效
标题翻译：增益开关低噪声放大器电路
公开(公告)号：US20080309413A1
公开(公告)日：2008-12-18
申请号：US12102321
申请日：2008-04-14
申请人： Yutaka Igarashi , Akio Yamamoto
发明人： Yutaka Igarashi , Akio Yamamoto
IPC分类号： H03F3/04
CPC分类号： H03G1/0088 , H03F1/22 , H03F3/19 , H03F3/72 , H03F2200/294 , H03F2200/366 , H03F2200/492 , H03F2203/7206
摘要： In a gain switching LNA including a first transistor, a first transistor group (for example, second to ninth transistors) and a second transistor group (for example, tenth to seventeenth transistors), a first resistor connected between an emitter of the tenth transistor and a collector of the first transistor and a second resistor connected to emitters of eleventh to seventeenth transistors and the collector of the first transistor and having a resistance one seventh as high as that of the first resistor are provided. In a high-gain mode, since isolation of the tenth to seventeenth transistors which are turned OFF and the first and second to ninth transistors is secured by the first resistor and the second resistor, there is no deterioration in the noise factor.
摘要翻译：在包括第一晶体管，第一晶体管组（例如第二至第九晶体管）和第二晶体管组（例如，第十至第十七晶体管）的增益切换LNA中，连接在第十晶体管的发射极和提供第一晶体管的集电极和连接到第十一至第十七晶体管的发射极和第一晶体管的集电极并且具有与第一电阻器的电阻高七分之一的电阻的第二电阻器。在高增益模式中，由于通过第一电阻器和第二电阻器确保了截止的第十至第十七晶体管和第一和第二至第九晶体管的隔离，因此噪声系数不会降低。

2. 发明授权

US07280811B2 Multimode wireless terminal and wireless transmitter-receiver unit 失效
标题翻译：多模无线终端和无线收发单元
公开(公告)号：US07280811B2
公开(公告)日：2007-10-09
申请号：US10874459
申请日：2004-06-22
申请人： Yoshikazu Sugiyama , Masaki Noda , Makoto Katagishi , Yutaka Igarashi
发明人： Yoshikazu Sugiyama , Masaki Noda , Makoto Katagishi , Yutaka Igarashi
IPC分类号： H04B1/18
CPC分类号： H04B1/406 , H04B1/109
摘要： A multimode wireless terminal suitable for received level monitoring for a base station serving as an intersystem handover destination includes a first wireless transmitter-receiver unit for GSM, a second wireless transmitter-receiver unit for WCDMA, and a communication processor unit and an antenna switch unit connected to these wireless transmitter-receiver units. While conducting communication with a WCDMA network system via the second wireless transmitter-receiver unit, a level of a signal received from a GSM base station is monitored via the first wireless transmitter-receiver unit. A communication processor unit determines whether the level monitoring is interfered with by a WCDMA transmission signal, on the basis of a relation between a WCDMA transmission frequency and a reception frequency supplied from the GSM base station. If interference occurs, then the communication processor unit changes circuit characteristics of the first or second wireless transmitter-receiver unit, and thereby suppresses the interference.
摘要翻译：适用于作为系统间切换目的地的基站的接收电平监视的多模无线终端包括用于GSM的第一无线发射机 - 接收机单元，用于WCDMA的第二无线发射机 - 接收机单元，以及通信处理器单元和天线切换单元连接到这些无线发射机 - 接收机单元。在经由第二无线发射机 - 接收机单元与WCDMA网络系统进行通信时，经由第一无线发射机 - 接收机单元监测从GSM基站接收的信号的电平。通信处理器单元基于WCDMA发送频率与从GSM基站提供的接收频率之间的关系来确定电平监视是否被WCDMA发送信号干扰。如果发生干扰，则通信处理器单元改变第一或第二无线发射机 - 接收机单元的电路特性，从而抑制干扰。

3. 发明申请

US20070146044A1 Quadrature mixer circuit and RF communication semiconductor integrated circuit 失效
标题翻译：正交混频电路和射频通信半导体集成电路
公开(公告)号：US20070146044A1
公开(公告)日：2007-06-28
申请号：US11581776
申请日：2006-10-17
申请人： Yutaka Igarashi , Akio Yamamoto
发明人： Yutaka Igarashi , Akio Yamamoto
IPC分类号： G06F7/44
CPC分类号： H03D7/166 , H03B27/00 , H03D7/1433 , H03D7/1458 , H03D7/165 , H03D2200/0043
摘要： A quadrature mixer circuit and an RF communication semiconductor integrated circuit capable of suppressing variations in secondary distortion while reducing the current consumption are provided. In a quadrature mixer circuit, even if local signals different by 90 degrees inputted to the bases of I transistors and Q transistors have large amplitudes, interference is suppressed by I resistors, Q resistors, and capacitors. Also, since the capacitors are provided, changes in bias current values can be suppressed. Accordingly, variations in secondary distortion can be suppressed. Furthermore, the capacitors combine current outputs of a differential circuit formed of I transistors and the resistor and a differential circuit formed of Q transistors and the resistor. Therefore, current consumption can also be reduced.
摘要翻译：提供了能够抑制二次变形的变化同时降低电流消耗的正交混频器电路和RF通信半导体集成电路。在正交混频器电路中，即使输入到I晶体管和Q晶体管的基极的90度的本地信号具有很大的幅度，I电阻器，Q电阻器和电容器也会抑制干扰。此外，由于提供了电容器，所以可以抑制偏置电流值的变化。因此，可以抑制二次变形的变化。此外，电容器组合由I晶体管和电阻器形成的差分电路的电流输出和由Q晶体管和电阻器形成的差分电路。因此，电流消耗也可以降低。

4. 发明授权

US06909470B2 Digital broadcast recorder 失效
标题翻译：数字广播录像机
公开(公告)号：US06909470B2
公开(公告)日：2005-06-21
申请号：US10338684
申请日：2003-01-09
申请人： Hiroyuki Mizukami , Yutaka Igarashi , Toshio Nagashima
发明人： Hiroyuki Mizukami , Yutaka Igarashi , Toshio Nagashima
IPC分类号： H04N5/44 , H04N5/52 , H04N5/922 , H04N11/00 , H04N5/46
CPC分类号： H04N5/4446 , H04N5/4401 , H04N5/52 , H04N11/002
摘要： A digital broadcast recorder capable of recording digital television (TV) signals includes a first frequency converter which converts a received digitally modulated TV signal into a first intermediate frequency signal having a frequency lower than that of the digitally modulated TV signal, the first intermediate frequency signal having a frequency in a standard TV band and useable in demodulating standard TV signals, a band-pass filter coupled to the first frequency converter, which selectively passes-through the first intermediate frequency signal, a phase-lock loop (PLL) circuit coupled to the first frequency converter, which controls an oscillation frequency of a local oscillator in the first frequency converter, a second frequency converter coupled to the band-pass filter, which converts the first intermediate frequency signal passed through the band-pass filter into a second intermediate frequency signal lower in frequency than said first intermediate frequency signal a digital demodulator coupled to the second frequency converter, which demodulates the second intermediate frequency signal as converted by the second frequency converter and a writer coupled to the digital demodulator, which records demodulated signal as demodulated by said digital demodulator in a recording medium.
摘要翻译：能够记录数字电视（TV）信号的数字广播记录器包括：第一频率转换器，其将接收到的数字调制的TV信号转换成具有低于数字调制的TV信号的频率的第一中频信号;第一中频信号具有在标准TV频带中的频率并且可用于解调标准TV信号的频带滤波器，耦合到第一频率转换器的带通滤波器，其选择性地穿过第一中频信号;锁相环（PLL）电路耦合到控制第一变频器中的本地振荡器的振荡频率的第一变频器，耦合到带通滤波器的第二频率转换器，其将通过带通滤波器的第一中频信号转换成第二中间信号频率信号的频率低于所述第一中频信号a digital de 耦合到第二频率转换器的调制器，其解调由第二频率转换器转换的第二中频信号，以及耦合到数字解调器的写入器，其将由所述数字解调器解调的解调信号记录在记录介质中。

5. 发明授权

US06672764B2 Sealing device for linear guide apparatus 有权
标题翻译：直线导轨装置密封装置
公开(公告)号：US06672764B2
公开(公告)日：2004-01-06
申请号：US10263674
申请日：2002-10-04
申请人： Toru Tsukada , Yutaka Igarashi , Soichiro Kato , Toshikazu Yabe , Fumio Ueki
发明人： Toru Tsukada , Yutaka Igarashi , Soichiro Kato , Toshikazu Yabe , Fumio Ueki
IPC分类号： F16C2906
CPC分类号： F16C29/086 , F16C29/0642 , F16C33/6611 , F16C33/6622 , F16C33/6648
摘要： In a linear guide apparatus including an axially extending guide rail, a slider engaged with the guide rail, and a plurality of rolling elements loaded into the slider, the linear guide apparatus further includes a sealing device fixed to the slider in slidable contact with the guide rail for sealing a clearance existing between the guide rail and the slider, in which the sealing device includes a lubricant-containing polymer member formed of a synthetic resin containing a lubricant, and having a contact portion contacting with the guide rail to surround the guide rail, both wing portions, a connecting portion connecting the wing portions to be C-shaped substantially, and a pair of first recesses formed in the respective wing portions for fixing the lubricant-containing polymer member to the slider; a first plate member fitted to the lubricant-containing polymer member opposed to the slider; and a pair of first cylindrical members inserted to the respective first recesses.
摘要翻译：在包括轴向延伸的导轨，与导轨接合的滑块以及装载到滑块中的多个滚动元件的线性引导装置中，线性引导装置还包括固定到滑块的与导向件滑动接触的密封装置用于密封存在于导轨和滑块之间的间隙的导轨，其中密封装置包括由含有润滑剂的合成树脂形成的含润滑剂的聚合物构件，并且具有与导轨接触的环绕导轨的接触部分两个翼部，将翼部大致连接成C形的连接部以及形成在各翼部的一对第一凹部，用于将含润滑剂的聚合物构件固定到滑块上; 安装在与滑块相对的含润滑剂的聚合物构件上的第一板构件; 以及插入到各个第一凹部中的一对第一圆柱形构件。

6. 发明授权

US06657678B1 Digital broadcasting receiver 失效
标题翻译：数字广播接收机
公开(公告)号：US06657678B1
公开(公告)日：2003-12-02
申请号：US09320712
申请日：1999-05-27
申请人： Hiroyuki Mizukami , Yutaka Igarashi , Toshio Nagashima
发明人： Hiroyuki Mizukami , Yutaka Igarashi , Toshio Nagashima
IPC分类号： H04N546
CPC分类号： H04N5/4446 , H04N5/4401 , H04N5/52 , H04N11/002
摘要： A digital broadcast recorder capable of recording a digital television (TV) signals, includes a first frequency converter which converts a received digitally modulated TV signal into a first intermediate frequency signal having a frequency lower than that of the digitally modulated TV signal, the first intermediate frequency signal having a frequency in a standard TV band and useable in demodulating standard TV signals, a band-pass filter coupled to the first frequency converter, which selectively passes-through the first intermediate frequency signal, a phase-lock loop (PLL) circuit coupled to the first frequency converter, which controls an oscillation frequency of a local oscillator in the first frequency converter, a second frequency converter coupled to the band-pass filter, which converts the first intermediate frequency signal passed through the band-pass filter into a second intermediate frequency signal lower in frequency than said first intermediate frequency signal a digital demodulator coupled to the second frequency converter, which demodulates the second intermediate frequency signal as converted by the second frequency converter and a writer coupled to the digital demodulator, which records demodulated signal as demodulated by said digital demodulator in a recording medium.
摘要翻译：能够记录数字电视（TV）信号的数字广播记录器包括第一频率转换器，其将所接收的数字调制的TV信号转换成具有低于数字调制的TV信号的频率的第一中频信号，第一中间频率信号具有在标准TV频带中的频率并且可用于解调标准TV信号;耦合到第一频率转换器的带通滤波器，其选择性地穿过第一中频信号;锁相环（PLL）电路耦合到第一变频器，其控制第一变频器中的本地振荡器的振荡频率;耦合到带通滤波器的第二频率转换器，其将通过带通滤波器的第一中频信号转换成第二中频信号的频率低于所述第一中频信号a数字解调器，其耦合到第二频率转换器，其解调由第二频率转换器转换的第二中频信号，以及耦合到数字解调器的写入器，其将由所述数字解调器解调的解调信号记录在记录介质中。

7. 发明授权

US06550968B2 Sealing device for linear guide apparatus 有权
公开(公告)号：US06550968B2
公开(公告)日：2003-04-22
申请号：US09875272
申请日：2001-06-07
申请人： Toru Tsukada , Yutaka Igarashi , Soichiro Kato , Toshikazu Yabe , Fumio Ueki
发明人： Toru Tsukada , Yutaka Igarashi , Soichiro Kato , Toshikazu Yabe , Fumio Ueki
IPC分类号： F16C2906
CPC分类号： F16C29/086 , F16C29/0642 , F16C33/6611 , F16C33/6622 , F16C33/6648
摘要： In a linear guide apparatus including an axially extending guide rail, a slider engaged with the guide rail, and a plurality of rolling elements loaded into the slider, the linear guide apparatus further includes a sealing device fixed to the slider in slidable contact with the guide rail for sealing a clearance existing between the guide rail and the slider, in which the sealing device includes a lubricant-containing polymer member formed of a synthetic resin containing a lubricant, and having a contact portion contacting with the guide rail to surround the guide rail, both wing portions, a connecting portion connecting the wing portions to be C-shaped substantially, and a pair of first recesses formed in the respective wing portions for fixing the lubricant-containing polymer member to the slider; a first plate member fitted to the lubricant-containing polymer member opposed to the slider; and a pair of first cylindrical members inserted to the respective first recesses.

8. 发明授权

US06296979B1 Sound deadening member for electrophotographic photoreceptor and electrophotographic photoreceptor using the same 有权
标题翻译：用于电子照相感光体和使用其的电子照相感光体的防声部件
公开(公告)号：US06296979B1
公开(公告)日：2001-10-02
申请号：US09603971
申请日：2000-06-26
申请人： Shoichi Morita , Masaru Miura , Hiroshi Kitani , Yutaka Igarashi
发明人： Shoichi Morita , Masaru Miura , Hiroshi Kitani , Yutaka Igarashi
IPC分类号： G03G510
CPC分类号： G03G5/10
摘要： A sound deadening member for electrophotographic photoreceptor composed of a molded thermoplastic resin composition obtained by compounding at least 10 parts by weight of a copolymer (A) having a glass transition point of at least 40° C. and being made of from 10 to 90% by weight (meth)acrylic acid ester monomer(s) and not more than 90 parts by weight of a styrene-base resin (B) such that the sum total becomes 100 parts by weight and an electrophotographic photoreceptor having the sound deadening member for electrophotographic photoreceptor in the inside of the conductive substrate.
摘要翻译：一种用于电子照相感光体的防声部件，其由通过将至少10重量份的具有至少40℃的玻璃化转变点的共聚物（A）组成并由10至90重量％的（甲基）丙烯酸酯单体和不大于90重量份的苯乙烯基树脂（B），使总和为100重量份，并且具有电子照相感光体的电子照相感光体具有用于电子照相感光体在导电性基板的内部。

9. 发明授权

US06257765B1 Sealing device for linear guide apparatus 有权
标题翻译：直线导轨装置密封装置
公开(公告)号：US06257765B1
公开(公告)日：2001-07-10
申请号：US09371493
申请日：1999-08-10
申请人： Toru Tsukada , Yutaka Igarashi , Soichiro Kato , Toshikazu Yabe , Fumio Ueki
发明人： Toru Tsukada , Yutaka Igarashi , Soichiro Kato , Toshikazu Yabe , Fumio Ueki
IPC分类号： F16C2906
CPC分类号： F16C29/086 , F16C29/0642 , F16C33/6611 , F16C33/6622 , F16C33/6648
摘要： In a linear guide apparatus including an axially extending guide rail, a slider engaged with the guide-rail, and a plurality of rolling elements loaded into the slider, the linear guide apparatus further includes a sealing device fixed to the slider in slidable contact with the guide rail for sealing a clearance existing between the guide rail and the slider, in which the sealing device includes: a lubricant-containing polymer member formed of a synthetic resin containing a lubricant, and having a contact portion contacting with the guide rail to surround the guide rail, both wing portions, a connecting portion connecting the wing portions to be C-shaped substantially, and a pair of first recesses formed in the respective wing portions for fixing the lubricant-containing polymer member to the slider; a first plate member fitted to the lubricant-containing polymer member opposed to the slider, and a pair of first cylindrical members inserted to the respective first recesses.
摘要翻译：在包括轴向延伸的导轨，与导轨接合的滑块以及装载到滑块中的多个滚动元件的线性引导装置中，线性引导装置还包括固定到滑块的密封装置，用于密封存在于导轨和滑块之间的间隙的导轨，其中密封装置包括：由含有润滑剂的合成树脂形成的含润滑剂的聚合物构件，并且具有与导轨接触的接触部分，以围绕导轨，两翼部，将翼部大致连接成C字状的连接部，以及形成在各翼部中的一对第一凹部，用于将含润滑剂的聚合物部件固定在滑块上; 安装到与滑块相对的含润滑剂的聚合物构件上的第一板构件和插入到各个第一凹部中的一对第一圆筒构件。

10. 发明授权

US06233732B1 Compiling system using intermediate codes to store a plurality of values 失效
标题翻译：使用中间代码编译系统以存储多个值
公开(公告)号：US06233732B1
公开(公告)日：2001-05-15
申请号：US08748064
申请日：1996-11-12
申请人： Manabu Matsuyama , Yutaka Igarashi , KohIchiro Hotta , Masakazu Hayashi
发明人： Manabu Matsuyama , Yutaka Igarashi , KohIchiro Hotta , Masakazu Hayashi
IPC分类号： G06F300
CPC分类号： G06F8/41
摘要： A compiling system includes a first unit for converting a source program into an intermediate text formed of intermediate codes, each of the intermediate codes having a portion used to explicitly indicate information regarding a state of computer hardware, the computer hardware being operated in accordance with a machine language program, and a second unit for generating a machine language program using the intermediate codes of the intermediate text. In addition, a compiling system includes a first unit for converting a source program into an intermediate text formed of intermediate codes, each of the intermediate codes having a portion used to define a plurality of values, and a second unit for generating a machine language program using the intermediate codes of the intermediate text.
摘要翻译：编译系统包括用于将源程序转换为由中间代码形成的中间文本的第一单元，每个中间代码具有用于明确指示关于计算机硬件状态的信息的部分，所述计算机硬件根据机器语言程序，以及用于使用中间文本的中间代码生成机器语言程序的第二单元。此外，编译系统包括用于将源程序转换为由中间代码形成的中间文本的第一单元，每个中间代码具有用于定义多个值的部分，以及用于生成机器语言程序的第二单元使用中间文本的中间代码。

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