专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5679971A Semiconductor integrated circuit 失效
标题翻译：半导体集成电路
公开(公告)号：US5679971A
公开(公告)日：1997-10-21
申请号：US505459
申请日：1995-07-21
申请人： Yuko Tamba , Akihiro Nagatani , Takao Okazaki
发明人： Yuko Tamba , Akihiro Nagatani , Takao Okazaki
IPC分类号： H01L27/04 , H01L21/822 , H01L21/8234 , H01L27/02 , H01L27/088 , H01L29/06 , H01L29/78
CPC分类号： H01L27/0251 , H01L27/0255 , H01L27/0266 , H01L2924/0002
摘要： In a semiconductor integrated circuit having a plurality of electronic circuits each provided with interfaces used for effecting signal transmission, and supplied with operating voltages from a plurality of independent power supply terminals, protective elements each having high threshold voltages at which the elements are off in the ordinary state of power supply are provided, and a resistor and a diode both for preventing electrostatic breakdown are connected to the gate of an input MOSFET of the interface for carrying out signal transmission between the electronic circuits. Even when a high voltage due to static electricity is applied to each power supply terminal while the semiconductor integrated circuit is handled, electrostatic breakdown of the interface can be prevented by the protective element or the electrostatic breakdown preventive circuit comprising a resistor and a diode.
摘要翻译：在具有多个电子电路的半导体集成电路中，每个电子电路设置有用于进行信号传输的接口，并且提供来自多个独立电源端子的工作电压，每个具有高阈值电压的保护元件，提供通常的电源状态，并且用于防止静电击穿的电阻器和二极管连接到用于在电子电路之间执行信号传输的接口的输入MOSFET的栅极。即使当处理半导体集成电路时由静电导致的高电压施加到每个电源端子时，也可以通过包括电阻器和二极管的保护元件或防静电电路来防止界面的静电破坏。

2. 发明授权

US5515047A Converter, offset adjustor, and portable communication terminal unit 失效
标题翻译：转换器，偏移调整器和便携式通信终端单元
公开(公告)号：US5515047A
公开(公告)日：1996-05-07
申请号：US170411
申请日：1993-12-20
申请人： Kazuo Yamakido , Yoichiro Kobayashi , Masanori Otsuka , Takao Okazaki , Yukihito Ishihara , Norimitsu Nishikawa , Yuko Tamba
发明人： Kazuo Yamakido , Yoichiro Kobayashi , Masanori Otsuka , Takao Okazaki , Yukihito Ishihara , Norimitsu Nishikawa , Yuko Tamba
IPC分类号： H03M1/10 , H03M1/68 , H03M1/74 , H04B1/40 , H03M1/06
CPC分类号： H03M1/687 , H03M1/1019 , H03M1/745 , H03M1/747
摘要： The number of current sources and switches necessary for a plurality of unit D/A converters using equal reference currents, are drastically reduced to reduce the parasitic capacitance coupled to current output lines, by converting a plurality of digital signals of a predetermined bit, which are divided from an input digital signal, into an analog current unit D/A converters and by converting the analog current in a manner to correspond to the weights of the corresponding input digital signals, thereby to synthesize the currents. The fixed reference digital signal is inputted to the D/A converter for cancelling offsets. The offsets of a plurality of analog output signals in positive and opposite phases obtained by branching the output of the D/A converter are individually detected. After this, the DC offset values of the individual analog outputs are used as offset adjusted negative feedback signals for a desired value. One of them is the digital signal to be fed back to the input portion of the D/A converter whereas the other is the analog signal to be fed to a path portion obtained by branching the output of the D/A converter.
摘要翻译：使用相同参考电流的多个单元D / A转换器所需的电流源和开关的数量被大大减少，通过转换预定位的多个数字信号来减小耦合到电流输出线的寄生电容，从输入数字信号中分离成模拟电流单元D / A转换器，并通过转换模拟电流以对应于相应的输入数字信号的权重，从而合成电流。固定参考数字信号被输入到D / A转换器以取消偏移。分别检测通过分支D / A转换器的输出而获得的正相位和相位相位中的多个模拟输出信号的偏移。之后，各个模拟输出的DC偏移值用作所需值的偏移调整负反馈信号。其中一个是要反馈到D / A转换器的输入部分的数字信号，而另一个是要馈送到通过分支D / A转换器的输出而获得的路径部分的模拟信号。

3. 发明授权

US5227795A Over-sampling analog-to-digital converter using a current switching circuit as a local digital-to-analog converter 失效
标题翻译：使用电流开关电路作为本地数模转换器的过采样模数转换器
公开(公告)号：US5227795A
公开(公告)日：1993-07-13
申请号：US704599
申请日：1991-05-23
申请人： Kazuo Yamakido , Norimitsu Nishikawa , Katsuhiro Furukawa , Yuko Tamba , Takao Okazaki
发明人： Kazuo Yamakido , Norimitsu Nishikawa , Katsuhiro Furukawa , Yuko Tamba , Takao Okazaki
IPC分类号： H03M3/04 , H03M3/02
CPC分类号： H03M3/434 , H03M3/456
摘要： An over-sampling analog-to-digital converter using a current switching circuit 102 as a local digital-to-analog converter, wherein a difference between the output currents Isig and Iq of a voltage-to-current converter circuit 101 and a current switching circuit is integrated by a capacitor 105 of which the one end is grounded to a dc potential VB. Further, the current switching circuit 102 has many bits to decrease the difference current between the signal current Isig and the feedback current signal Iq. Moreover, the level-shifting function of the voltage-to-current converter circuit 101 makes it possible to apparently subtract the dc component from the input analog signal Vsig which is produced based on an internally generated dc voltage as a dc bias voltage, and to decrease a change in the voltage between the electrodes of a capacitor caused by the integration of current.
摘要翻译：使用电流开关电路102作为本地数模转换器的过采样模数转换器，其中电压 - 电流转换器电路101的输出电流Isig和Iq之间的差异以及电流切换电路通过其一端接地到直流电位VB的电容器105来集成。此外，电流开关电路102具有许多位以减小信号电流Isig和反馈电流信号Iq之间的差电流。此外，电压 - 电流转换器电路101的电平转换功能使得可以从基于内部产生的直流电压产生的输入模拟信号Vsig显然地减去直流分量作为直流偏置电压，并且降低由电流的积分引起的电容器电极之间的电压变化。

4. 发明授权

US07929594B2 Semiconductor integrated circuit and radio communication apparatus for communication 失效
标题翻译：用于通信的半导体集成电路和无线电通信装置
公开(公告)号：US07929594B2
公开(公告)日：2011-04-19
申请号：US11430009
申请日：2006-05-09
申请人： Takao Okazaki , Satoru Fukuchi
发明人： Takao Okazaki , Satoru Fukuchi
IPC分类号： H04B1/38 , H04L27/00 , H04L7/00
CPC分类号： H04L27/2272 , H03M1/0607 , H03M1/682 , H03M1/765 , H04L2027/0028 , H04L2027/0055
摘要： A total power consumption of a radio communication apparatus is reduced, the radio communication apparatus including a semiconductor integrated circuit (high-frequency IC) which has a clock generation circuit which generates a reference clock signal for use in modulating a transmit signal and demodulating a received signal. The clock generation circuit is provided with a voltage-controlled oscillator circuit (VCXO) which oscillates, when a quartz oscillator is connected thereto, at a frequency dependent on a natural frequency of the quartz oscillator and a control voltage applied thereto. The voltage-controlled oscillator circuit is configured such that a result obtained by converting, in an internal D/A converter circuit, digital frequency control information supplied from the baseband circuit is applied as the control voltage to the voltage-controlled oscillator circuit and such that the voltage-controlled oscillator circuit oscillates at a frequency corresponding to the control voltage.
摘要翻译：无线电通信装置的总功耗降低，无线电通信装置包括半导体集成电路（高频IC），该半导体集成电路具有时钟发生电路，该时钟产生电路产生用于调制发送信号的基准时钟信号，信号。时钟发生电路设置有压电振荡器电路（VCXO），当石英振荡器与其连接时，振荡器以与石英振荡器的固有频率相关的频率和施加到其的控制电压振荡。压控振荡器电路被配置为使得通过在内部D / A转换器电路中转换从基带电路提供的数字频率控制信息而获得的结果作为控制电压被施加到压控振荡器电路，并且使得压控振荡器电路以对应于控制电压的频率振荡。

5. 发明授权

US5157398A A/D convertor of the pipeline type having additional comparators for use in setting a specified reference voltage 失效
标题翻译：具有用于设定指定参考电压的附加比较器的管道类型的A / D转换器
公开(公告)号：US5157398A
公开(公告)日：1992-10-20
申请号：US778246
申请日：1991-10-17
申请人： Takao Okazaki , Kazuo Yamakido
发明人： Takao Okazaki , Kazuo Yamakido
IPC分类号： H03M1/12 , H03M1/38 , H03M1/44
CPC分类号： H03M1/44
摘要： In an A/D convertor, one comparator is provided for the most significant bit of the output digital signal, two for the second bit, and three each for the third and lower-order bits. When a compare operation is being performed by one of the three comparators that are provided for each of the third and lower bits, the remaining two comparators provide outputs in response to which output switch circuits perform setting of two reference voltages that are specified by the comparison result of a comparator corresponding to an output digital signal two bits higher.
摘要翻译：在A / D转换器中，为输出数字信号的最高有效位提供一个比较器，对于第二位提供两个比较器，对于第三位和低位位提供三个比较器。当为三位和低位中的每一位提供三个比较器中的一个比较器进行比较操作时，剩下的两个比较器提供输出，响应哪个输出开关电路执行由比较指定的两个参考电压的设置比较器对应于两位高的输出数字信号的结果。

6. 发明授权

US5153124A Hydroxyl-ML-236B derivatives, their preparation and use 失效
标题翻译：羟基-LM-236B衍生物，其制备和使用
公开(公告)号：US5153124A
公开(公告)日：1992-10-06
申请号：US393001
申请日：1989-08-11
申请人： Kouhei Furuya , Takao Okazaki , Yoshio Tsujita , Seigo Iwado , Kiyoshi Hamano , Masao Kuroda , Jun Yoshikawa , Toshiaki Iwai , Kunio Nakano
发明人： Kouhei Furuya , Takao Okazaki , Yoshio Tsujita , Seigo Iwado , Kiyoshi Hamano , Masao Kuroda , Jun Yoshikawa , Toshiaki Iwai , Kunio Nakano
IPC分类号： A61K31/225 , C07C67/31 , C07C69/675 , C07D309/10 , C07D309/30 , C12P7/62 , C12P17/06
CPC分类号： C12R1/645 , C07D309/10 , C12P17/06 , C12P7/62 , C12R1/365
摘要： Derivatives of ML-236B carboxylic acid, its salts and esters and corresponding lactone have a hydroxy group at the 3"-position and optionally also at the 6'-position. These derivatives may be prepared by the enzymatic hydroxylation of a corresponding ML-236B compound employing an enzyme produced by a microorganism of the genus Streptomyces or Amycolata, especially Streptomyces sp. SANK 62285, Streptomyces sp. SANK 62385, Streptomyces sp. SANK 62485, Streptomyces sp. SANK 62585, Amycolata autotrophica SANK 62781, Amycolata autotrophica subsp. canberrica SANK 62882 or Amycolata autotrophica subsp. amethystina SANK 62981. These derivatives have the ability to inhibit cholesterol biosynthesis.
摘要翻译： ML-236B羧酸的衍生物，其盐和酯和相应的内酯在3“位和任选也在6'位具有羟基。这些衍生物可以通过使用由链霉菌属或Amycolata属的微生物，特别是链霉菌属（Streptomyces sp。）产生的酶的相应的ML-236B化合物的酶促羟基化来制备。 SANK 62285，Streptomyces sp。 SANK 62385，Streptomyces sp。 SANK 62485，Streptomyces sp。 SANK 62585，Amycolata autotrophica SANK 62781，Amycolata autotrophica subsp。 canberrica SANK 62882或Amycolata autotrophica subsp。紫杉醇SANK 62981.这些衍生物具有抑制胆固醇生物合成的能力。

7. 发明授权

US08055218B2 Wireless transmitter circuit and transceiver using the same 有权
标题翻译：无线发射机电路和收发器使用相同
公开(公告)号：US08055218B2
公开(公告)日：2011-11-08
申请号：US11158094
申请日：2005-06-22
申请人： Satoshi Tanaka , Yukinori Akamine , Manabu Kawabe , Yasuyuki Kimura , Takao Okazaki
发明人： Satoshi Tanaka , Yukinori Akamine , Manabu Kawabe , Yasuyuki Kimura , Takao Okazaki
IPC分类号： H01Q11/12 , H04B1/04
CPC分类号： H04B1/006
摘要： This invention provides a wireless transmitter circuit for mobile communication apparatus and this circuit can be configured with fewer components and is suitable for downsizing. A single PLL synthesizer serves as both RF frequency band PLL and IF frequency band PLL among three oscillators for TX, RX and IF frequency bands, which have been required in conventional mobile communication apparatus. The number of necessary oscillators occupying a large area within a chip is reduced and the number of components is decreased. Specifically, circuitry is arranged to generate local oscillation signals for RF and IF frequency bands by frequency dividing the output of a VCO of the RF frequency band PLL.
摘要翻译：本发明提供了一种用于移动通信设备的无线发射机电路，该电路可以配置成较少的组件，并且适合于小型化。在常规移动通信设备中已经需要的TX，RX和IF频段的三个振荡器中，单个PLL合成器用作RF频带PLL和IF频带PLL两者。占用芯片内大面积的必要振荡器的数量减少，并且部件的数量减少。具体地，电路被布置成通过对RF频带PLL的VCO的输出进行分频来产生用于RF和IF频带的本地振荡信号。

8. 发明申请

US20100301824A1 STEP-UP DC/DC SWITCHING CONVERTER AND SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE 审中-公开
标题翻译：升压型DC / DC开关转换器和半导体集成电路器件
公开(公告)号：US20100301824A1
公开(公告)日：2010-12-02
申请号：US12786263
申请日：2010-05-24
申请人： Masahiko YAMAMOTO , Takao Okazaki
发明人： Masahiko YAMAMOTO , Takao Okazaki
IPC分类号： G05F1/46
CPC分类号： H02M3/156
摘要： A step-up DC/DC converter having a step-up circuit which can performs a stable control without depending on a logic threshold of a semiconductor switching device and a semiconductor integrated circuit device having the step-up DC/DC converter are provided. The step-up DC/DC converter includes: a control logic which generates a driving voltage to be supplied to a semiconductor switching device; a power supply circuit which steps-up a battery voltage to perform a level shift of the driving voltage output by the control logic; and an amplifier operated with using a voltage generated by the semiconductor switching device as a power supply. Since the level-shifted semiconductor switching device control signal is higher than a logic threshold voltage of the semiconductor switching device, the ON/OFF of the semiconductor switching device can be controlled.
摘要翻译：提供了一种具有升压电路的升压DC / DC转换器，其可以执行稳定的控制而不依赖于半导体开关器件的逻辑阈值和具有升压型DC / DC转换器的半导体集成电路器件。升压DC / DC转换器包括：产生要提供给半导体开关器件的驱动电压的控制逻辑; 电源电路，其升高电池电压，以执行由所述控制逻辑输出的驱动电压的电平偏移; 以及使用由半导体开关器件产生的电压作为电源进行工作的放大器。由于电平移位半导体开关器件控制信号高于半导体开关器件的逻辑阈值电压，因此可以控制半导体开关器件的导通/截止。

9. 发明授权

US5272174A Hydroxy-ML-236B derivatives, their preparation and use 失效
标题翻译： Hydroxy-ML-236B衍生物，其制备和用途
公开(公告)号：US5272174A
公开(公告)日：1993-12-21
申请号：US919154
申请日：1992-07-23
申请人： Kouhei Furuya , Takao Okazaki , Yoshio Tsujita , Seigo Iwado , Kiyoshi Hamano , Masao Kuroda , Jun Yoshikawa , Toshiaki Iwai , Kunio Nakano
发明人： Kouhei Furuya , Takao Okazaki , Yoshio Tsujita , Seigo Iwado , Kiyoshi Hamano , Masao Kuroda , Jun Yoshikawa , Toshiaki Iwai , Kunio Nakano
IPC分类号： C07D309/10 , C12P7/62 , C12P17/06 , A61K31/365 , A61K31/215
CPC分类号： C12R1/645 , C07D309/10 , C12P17/06 , C12P7/62 , C12R1/365 , Y10S514/824
摘要： Derivatives of ML-236B carboxylic acid, its salts and esters and corresponding lactone have a hydroxy group at the 3"-position and optionally also at the 6'-position. These derivatives may be prepared by the enzymatic hydroxylation of a corresponding ML-236B compound employing an enzyme produced by a microorganism of the genus Streptomyces or Amycolata, especially Streptomyces sp. SANK 62285, Streptomyces sp. SANK 62385, Streptomyces sp. SANK 62485, Streptomyces sp. SANK 62585, Amycolata autotrophica SANK 62781. Amycolata autotrophica subsp. canberrica SANK 62882 or Amycolata autotrophica subsp. amethystina SANK 62981. These derivatives have the ability to inhibit cholesterol biosynthesis.
摘要翻译： ML-236B羧酸的衍生物，其盐和酯和相应的内酯在3“位和任选也在6'位具有羟基。这些衍生物可以通过使用由链霉菌属或Amycolata属的微生物，特别是链霉菌属（Streptomyces sp。）产生的酶的相应的ML-236B化合物的酶促羟基化来制备。 SANK 62285，Streptomyces sp。 SANK 62385，Streptomyces sp。 SANK 62485，Streptomyces sp。 SANK 62585，Amycolata autotrophica SANK 62781. Amycolata autotrophica subsp。 canberrica SANK 62882或Amycolata autotrophica subsp。紫杉醇SANK 62981.这些衍生物具有抑制胆固醇生物合成的能力。

10. 发明授权

US5212322A Macrolide compounds, their preparation and their use 失效
标题翻译：大环内酯类化合物，其制备及其用途
公开(公告)号：US5212322A
公开(公告)日：1993-05-18
申请号：US644100
申请日：1991-01-22
申请人： Takao Okazaki , Shuji Takahashi , Seigo Iwado , Keiji Tanaka , Toshiaki Yanai , Hisaki Kajino
发明人： Takao Okazaki , Shuji Takahashi , Seigo Iwado , Keiji Tanaka , Toshiaki Yanai , Hisaki Kajino
IPC分类号： A01N49/00 , C07H19/01 , C12P17/18
CPC分类号： C07H19/01 , A01N49/00 , C12P17/181 , Y02P20/55 , Y10S424/08
摘要： Compounds with acaricidal, insecticidal and anthelmintic activities have the formula: ##STR1## wherein: --X--Y-- is selected from the group consisting of --CH.sub.2 --CH.sub.2 --, --CH.sub.2 --CHOH--, --CH.dbd.CH--, and --CH.sub.2 --C(.dbd.O)--;R.sup.1 is selected from the group consisting of a methyl group, an ethyl group, an isopropyl group, a sec-butyl group and groups of formula --C(CH.sub.3).dbd.CHR.sup.5 in which R.sup.5 is selected from the group consisting of a methyl group, an ethyl group and an isopropyl group;R.sup.2 represents a group of formula --(CH.sub.2).sub.n --C(R.sup.6).dbd.C(R.sup.7)(R.sup.8) in which n is 0, 1 or 2, R.sup.6 and R.sup.7 each is selected from the group consisting of a hydrogen atom and a methyl group and R.sup.8 is selected from the group consisting of a hydrogen atom, a C.sub.1-4 alkyl group, a phenyl group and a phenyl group substituted with at least one substituent selected from the group consisting of halogen, methyl and nitro substituents;R.sup.3 is selected from the group consisting of a hydrogen atom, a methyl group, a hydroxy-protecting group, an ester-forming carboxylic acid residue, and an ester-forming carbonic acid residue; andR.sup.4 is selected from the group consisting of a hydrogen atom and an .alpha.-L-oleandrosyl-.alpha.-L-oleandrosyloxy group, with the proviso that R.sup.4 represents a hydrogen atom when the group R.sup.1 is selected from the group consisting of a methyl group, an ethyl group, and groups of formula --C(CH.sub.3).dbd.CHR.sup.5 in which R.sup.5 is selected from the group consisting of a methyl group, an ethyl group and an isopropyl group.
摘要翻译：具有杀螨，杀虫和驱虫活性的化合物具有下式：其中：-XY-选自-CH 2 -CH 2 - ， - CH 2 -CHOH - ， - CH = CH-和 - CH2-C（= O） - ; R 1选自甲基，乙基，异丙基，仲丁基和式-C（CH 3）= CHR 5的基团，其中R 5选自甲基，乙基和异丙基; R 2表示式 - （CH 2）n C（R 6）= C（R 7）（R 8）的基团，其中n为0,1或2，R 6和R 7各自为氢原子和甲基并且R 8选自氢原子，C 1-4烷基，苯基和被至少一个选自卤素，甲基和硝基取代基的取代基取代的苯基; R3选自氢原子，甲基，羟基保护基，成酯羧酸残基和形成酯的碳酸残基; 并且R 4选自氢原子和α-L-甘氨酰基-α-L-胆碱基氧基，条件是当R 1选自甲基时，R 4表示氢原子，乙基和式-C（CH 3）= CHR 5基团，其中R 5选自甲基，乙基和异丙基。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式