会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 34. 发明授权
    • Variable gain amplifier and communication apparatus
    • 可变增益放大器和通信装置
    • US07482879B2
    • 2009-01-27
    • US11635685
    • 2006-12-08
    • Masato KoutaniKunihiko IizukaHiroshi Kawamura
    • Masato KoutaniKunihiko IizukaHiroshi Kawamura
    • H03F1/22H03F3/45
    • H03F3/72H01L27/0207H01L29/41758H01L29/4238H03F1/223H03F1/26H03F2200/294H03F2200/372H03F2203/7236H03G1/0029H03G1/0088
    • A variable gain amplifier is provided that can obtain a wide range of gain variation and suppress the deterioration of linearity when switching between amplifying transistors. The variable gain amplifier includes a plurality of cascode amplifiers each including an amplifying transistor and a plurality of cascode transistors connected in a cascode arrangement to an output terminal of the amplifying transistor. The plurality of cascode amplifiers are connected through attenuators. The variable gain amplifier further includes a first controller that controls ON/OFF operations of the plurality of cascode transistors included in each cascode amplifier; and a second controller that controls ON/OFF operations of a plurality of amplifying transistors, only one of which is included in each of the plurality of cascode amplifiers, such that only selected one of the plurality of amplifying transistors is turned on.
    • 提供了可变增益放大器,其可以获得宽范围的增益变化,并且在放大晶体管之间切换时抑制线性的劣化。 可变增益放大器包括多个共源共栅放大器,每个包括放大晶体管和以共源共栅结构连接到放大晶体管的输出端的多个共源共栅晶体管。 多个共源共栅放大器通过衰减器连接。 可变增益放大器还包括:第一控制器,其控制包括在每个共源共栅放大器中的多个共源共栅晶体管的接通/断开操作; 以及第二控制器,其控制多个放大晶体管的ON / OFF操作,其中仅一个放大晶体管中的一个被包括在所述多个共源共栅放大器的每一个中,使得仅所述多个放大晶体管中的所选择的一个放大晶体管导通。
    • 35. 发明申请
    • Variable gain amplifier and communication apparatus
    • 可变增益放大器和通信装置
    • US20070222515A1
    • 2007-09-27
    • US11635685
    • 2006-12-08
    • Masato KoutaniKunihiko IizukaHiroshi Kawamura
    • Masato KoutaniKunihiko IizukaHiroshi Kawamura
    • H03F3/45H03F1/22
    • H03F3/72H01L27/0207H01L29/41758H01L29/4238H03F1/223H03F1/26H03F2200/294H03F2200/372H03F2203/7236H03G1/0029H03G1/0088
    • A variable gain amplifier is provided that can obtain a wide range of gain variation and suppress the deterioration of linearity when switching between amplifying transistors. The variable gain amplifier includes a plurality of cascode amplifiers each including an amplifying transistor and a plurality of cascode transistors connected in a cascode arrangement to an output terminal of the amplifying transistor. The plurality of cascode amplifiers are connected through attenuators. The variable gain amplifier further includes a first controller that controls ON/OFF operations of the plurality of cascode transistors included in each cascode amplifier; and a second controller that controls ON/OFF operations of a plurality of amplifying transistors, only one of which is included in each of the plurality of cascode amplifiers, such that only selected one of the plurality of amplifying transistors is turned on.
    • 提供了可变增益放大器,其可以获得宽范围的增益变化,并且在放大晶体管之间切换时抑制线性的劣化。 可变增益放大器包括多个共源共栅放大器,每个包括放大晶体管和以共源共栅结构连接到放大晶体管的输出端的多个共源共栅晶体管。 多个共源共栅放大器通过衰减器连接。 可变增益放大器还包括:第一控制器,其控制包括在每个共源共栅放大器中的多个共源共栅晶体管的接通/断开操作; 以及第二控制器,其控制多个放大晶体管的ON / OFF操作,其中只有一个被包括在所述多个共源共栅放大器的每一个中,使得仅所述多个放大晶体管中的所选择的一个放大晶体管导通。
    • 36. 发明授权
    • Program development device utilizing component, program development method and medium
    • 程序开发设备利用组件,程序开发方法和介质
    • US07137102B2
    • 2006-11-14
    • US09785207
    • 2001-02-20
    • Kunihiko Iizuka
    • Kunihiko Iizuka
    • G06F9/44
    • G06F9/543G06F9/465
    • A program development device providing functions of developing a unitarily designed application program even when utilizing components, in which a multiplicity of interfaces can be used, and a multiplicity of combinations of these components can be provided. The program development device for developing the application program by use of the component having the plurality of interfaces, includes a component selecting module for having the component selected, an interface selection module for having the interface selected for the selected component, and setting the selected interface in a valid or invalid state, a recording unit for retaining a set record of having set the interface in the valid or invalid state, and a edit module for supporting the development of the program by use of the interface set in the valid state or the interface that is not set in the invalid state in accordance with the set record.
    • 即使利用可以使用多个界面的组件,也可以提供这些组件的多种组合,提供开发一体设计的应用程序的功能的程序开发设备。 用于通过使用具有多个接口的组件来开发应用程序的程序开发设备包括:用于选择组件的组件选择模块,用于为所选择的组件选择接口的接口选择模块,以及设置所选择的接口 在有效或无效的状态下,用于保持将接口设置为有效或无效状态的设置记录的记录单元和用于通过使用在有效状态中设置的接口来支持程序开发的编辑模块 接口根据设置的记录未设置为无效状态。
    • 37. 发明授权
    • Matched filter
    • 匹配过滤器
    • US5960033A
    • 1999-09-28
    • US825864
    • 1997-04-02
    • Toshinobu ShibanoKunihiko Iizuka
    • Toshinobu ShibanoKunihiko Iizuka
    • H03H17/02H04B1/7093H04J13/00H04K1/00
    • H03H17/0254H04B1/7093H04B2201/70703
    • A sample-hold circuit, which is constituted by a capacitor and a differential amplifier or a capacitor and an inversion amplifier, is provided with a first switch for short-circuiting the input and output, a second switch for switching the input-side terminal of the input capacitor to a reference voltage input, a third switch for switching the output-side terminal of the feedback capacitor to the reference voltage input, and a fourth switch for switching the input-side terminal of the input capacitor to an input voltage; thus a refreshing operation is available. Consequently, it is possible to compensate for deviations in offset voltage that are inherently caused by process deviations of MOS amplifiers, and to improve the precision of the output of the matched filter. Moreover, in addition to sample-hold circuits having conventional number of steps, a plurality of sample-hold circuits are added, and steps of shift registers, which have binary correlation filter coefficients stored therein, are also added as many as the same number of the added sample-hold circuits. Thus, during the refreshing operation, the extra circuits are used to carry out the process. With this arrangement, it becomes possible to provide a matched filter that is capable of refreshing the sample-hold circuits without adversely affecting the correlation output.
    • 由电容器和差分放大器或电容器和反相放大器构成的采样保持电路设置有用于使输入和输出短路的第一开关,用于切换输入和输出的输入侧端子的第二开关 所述输入电容器与参考电压输入端相连;第三开关,用于将所述反馈电容器的输出侧端子切换到所述基准电压输入;以及第四开关,用于将所述输入电容器的输入侧端子切换为输入电压; 因此可以进行清爽的操作。 因此,可以补偿由MOS放大器的工艺偏差固有地引起的偏移电压的偏差,并且提高匹配滤波器的输出的精度。 此外,除了具有常规步数的采样保持电路之外,添加多个采样保持电路,并且还添加了存储有二进制相关滤波器系数的移位寄存器的步骤,其数量相同 添加的采样保持电路。 因此,在刷新操作期间,使用额外的电路来执行该处理。 利用这种布置,可以提供能够刷新采样保持电路而不会不利地影响相关输出的匹配滤波器。
    • 38. 发明授权
    • Voltage comparator
    • 电压比较器
    • US5900748A
    • 1999-05-04
    • US969551
    • 1997-11-13
    • Ryuji MiyamaKunihiko IizukaKazuo Hashiguchi
    • Ryuji MiyamaKunihiko IizukaKazuo Hashiguchi
    • G01R19/165H03K5/08H03K5/24H03K5/22
    • H03K5/249H03K5/2481
    • In a voltage comparator of the present invention, across a gate and a source of an amplifier transistor, a phase compensating capacitor and a first switch circuit are connected with each other in series, and a second switch circuit for short-circuiting the phase compensating capacitor is provided. The second switch circuit is turned on when the first switch circuit is turned off so as to (1) short-circuit the phase compensating capacitor and (2) discharge the phase compensating capacitor which has been charged while the first switch circuit was turned on. This permits to completely turn off the first switch circuit, and to prevent distortion of an output signal outputted from an output terminal, thereby preventing accumulation of unnecessary charges in the phase compensating capacitor.
    • 在本发明的电压比较器中,跨越放大晶体管的栅极和源极,相位补偿电容器和第一开关电路串联连接,第二开关电路使相位补偿电容器 被提供。 当第一开关电路断开时,第二开关电路导通,以便(1)使相位补偿电容器短路,以及(2)在第一开关电路导通时对已经充电的相位补偿电容器进行放电。 这允许完全关闭第一开关电路,并且防止从输出端子输出的输出信号的失真,从而防止在相位补偿电容器中累积不必要的电荷。
    • 39. 发明授权
    • Image compressing apparatus
    • 图像压缩装置
    • US5845016A
    • 1998-12-01
    • US673720
    • 1996-06-27
    • Hirofumi MatsuiKunihiko IizukaMasayuki MiyamotoMitsuhiko Fujio
    • Hirofumi MatsuiKunihiko IizukaMasayuki MiyamotoMitsuhiko Fujio
    • H04N19/00G06T9/00H03M7/30H04N1/41H04N19/124H04N19/154H04N19/176H04N19/196H04N19/85H04N19/94G06K9/38
    • H04N19/94G06T9/008H03M7/3082
    • An image compressing apparatus employs a mean-separated normalized vector quantization method according to which, with respect to vector components corresponding to input images inputted from image sensors via a plurality of lines, encodes and outputs a scalar-quantized code of a mean value, a scalar-quantized code of a maximum scalar product value with each code word in a code book, and an index of one of the code words which yields a maximum scalar product value. In this image compressing apparatus, when the maximum scalar product value is less than a predetermined threshold value, in accordance with judgement by a comparator circuit, an output selecting circuit stops outputting the codes of the maximum scalar product value and of the index, and outputs only the code of the mean value. Therefore, when the image is uniform with pixels varying little in their luminance levels in compression processing unit blocks, code data to be outputted are restricted so that only data of the mean value are outputted. Consequently, it is possible to restrain degradation of the image and to considerably reduce data amount.
    • 图像压缩装置采用平均分离的归一化矢量量化方法,根据该量化方法,对于与通过多行从图像传感器输入的输入图像相对应的矢量分量,编码并输出平均值的标量化码, 具有代码本中的每个代码字的最大标量积值的标量化代码,以及产生最大标量乘积值的代码字之一的索引。 在该图像压缩装置中,当最大标量乘积值小于预定阈值时,根据比较器电路的判断,输出选择电路停止输出最大标量乘积值和索引的代码,并输出 只有代码的平均值。 因此,当在压缩处理单元块中图像的亮度级别变化很小的图像均匀时,要输出的代码数据被限制,从而仅输出平均值的数据。 因此,可以抑制图像的劣化并且显着地减少数据量。