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    • 21. 发明授权
    • Constant voltage supplying circuit
    • 恒压供电电路
    • US5614815A
    • 1997-03-25
    • US401272
    • 1995-03-09
    • Seiji YamagataShinya UdoFumitaka Asami
    • Seiji YamagataShinya UdoFumitaka Asami
    • G05F3/24G05F3/16
    • G05F3/247
    • A constant voltage supplying circuit is disposed between a voltage output terminal of a voltage generation circuit for outputting a voltage having the same polarity as that of a reference voltage, which can be arbitrarily set, and having a greater absolute value than the reference voltage, and a load. This constant voltage supplying circuit includes a first field effect transistor a gate of which is connected to its drain, and to a source of which the reference voltage is supplied, and a second field effect transistor which has the same conductivity type as the first field effect transistor, a gate of which is connected to the drain of the first field effect transistor, a source of which is connected to the voltage output terminal of the voltage generation circuit, and a drain of which is connected to the ground. According to the circuit constitution, the output voltage of the voltage generation circuit can be stabilized to a desired voltage value (the same voltage value as the reference voltage). Even when the constant voltage supplying circuit is fabricated in an integrated circuit, it does not invite the increase of the production process, and thus can limit the increase of the cost of production.
    • 恒压供给电路设置在电压产生电路的电压输出端子之间,用于输出具有与参考电压相同极性的电压,该参考电压可以任意设置,并且具有比参考电压更大的绝对值;以及 负载。 该恒压供给电路包括第一场效应晶体管,其栅极连接到其漏极,并连接到提供参考电压的源极;以及第二场效应晶体管,其具有与第一场效应相同的导电类型 晶体管,其栅极连接到第一场效应晶体管的漏极,源极连接到电压产生电路的电压输出端,其漏极连接到地。 根据电路结构,电压产生电路的输出电压可以稳定到期望的电压值(与参考电压相同的电压值)。 即使在集成电路中制造恒压供给电路的情况下,也不会引起生产过程的增加,因此可以限制生产成本的增加。
    • 24. 发明授权
    • Programmable counter circuit
    • 可编程计数器电路
    • US4400615A
    • 1983-08-23
    • US217386
    • 1980-12-17
    • Fumitaka AsamiOsamu Takagi
    • Fumitaka AsamiOsamu Takagi
    • H03K23/58H03K3/356H03K23/66G06F7/68
    • H03K23/665H03K3/356104
    • In order to improve the operable frequency of a programmable counter circuit which serves as an N-step counter by loading an initial value N, load terminals of flip-flops of respective stages forming the counter circuit are sequentially cascade-connected via buffers and a load signal is applied to each of the load terminals from a load signal generator circuit. The load signal generator circuit includes a detector circuit which detects a specified value which is provided a short time before the initial value loading of the counter circuit and generates a detected output signal. The detected output signal is shifted by a shift register included in the load signal generator circuit which operates on the same clock signal as that which drives the counter circuit, thereby generating the load signal at the moment of the initial value loading of the counter circuit. In this case, for the duration of the load signal and a certain period of time subsequent thereto the application of the output from the detector circuit to the shift register is inhibited by a load control circuit included within the load signal generator circuit, thus preventing erroneous loading.
    • 为了通过加载初始值N来提高用作N步计数器的可编程计数器电路的可操作频率,构成计数器电路的各级的触发器的负载端子通过缓冲器和负载顺序级联 信号从负载信号发生器电路施加到每个负载端子。 负载信号发生器电路包括检测器电路,其检测在计数器电路的初始值加载之前短时间提供的指定值,并产生检测到的输出信号。 检测到的输出信号被包含在负载信号发生器电路中的移位寄存器移位,该移位寄存器在与驱动计数器电路的时钟信号相同的时钟信号上工作,从而在计数器电路的初始值加载时产生负载信号。 在这种情况下,在负载信号的持续时间和随后的一段时间内,由负载信号发生器电路中包括的负载控制电路禁止从检测器电路向移位寄存器的输出的应用,从而防止错误 加载。
    • 25. 发明授权
    • Amplifier circuit
    • 放大器电路
    • US4366398A
    • 1982-12-28
    • US201387
    • 1980-07-17
    • Fumitaka Asami
    • Fumitaka Asami
    • H03F3/16H03F3/34H03F3/345H03F3/72H03K19/0948H03K19/40
    • H03F3/16H03F3/345H03F3/72
    • An amplifier circuit composed of two cascade-connected inverter stages, each of which consists of p channel and n channel transistors connected at their drains, n channel and p channel transistors which connect the gates of the, transistors of the first inverter to their respective drains by means of the control signal while said amplifier circuit is operated, and n channel and p channel transistors which connect the gates of both transistors of the first inverter respectively to specified potentials which set both transistors at the cut-off condition by means of the control signal while said amplifier circuit is not operated.
    • PCT No.PCT / JP79 / 00285 Sec。 371日期1980年7月17日 102(e)日期1980年7月3日PCT申请日1979年11月6日PCT公布。 出版物WO80 / 01124 日期为1980年5月29日。一个由两个级联连接的反相器级组成的放大器电路,每个放大器电路由在其漏极连接的p沟道和n沟道晶体管组成,n沟道和p沟道晶体管连接晶体管的栅极 第一反相器通过控制信号在所述放大器电路被操作时到达它们各自的漏极,并且将n沟道和p沟道晶体管分别连接到第一反相器的两个晶体管的栅极到规定的两个晶体管的截止电位 当所述放大器电路未被操作时借助于控制信号的条件。
    • 29. 发明授权
    • Display method for intermediate gray scale and display apparatus for
expressing intermediate gray scale
    • 用于中间灰度显示方法和用于表示中间灰度的显示装置
    • US5898414A
    • 1999-04-27
    • US865124
    • 1997-05-30
    • Kenji AwamotoNaoki MatsuiTadatsugu HiroseFumitaka Asami
    • Kenji AwamotoNaoki MatsuiTadatsugu HiroseFumitaka Asami
    • G09G3/20G09G3/28G09G3/288G09G3/291G09G3/294G09G3/296G09G3/298
    • G09G3/2037G09G3/2029G09G2310/021G09G2310/0224G09G2310/0227G09G2320/0247G09G3/2803H04N5/70H04N7/012
    • A display apparatus permitting high resolution and a large number of gray-scale levels and causing indiscernible flicker has been disclosed. One frame is divided into or composed of j subframes, and light is produced according to a luminance level predetermined subframe by subframe in order to express intermediate gray-scale of a picture. Emphasis is put on the fact that display to be performed during each subframe within one frame can be controlled independently. An interlaced-scanning display is carried out during k subframes associated with low-order weighted bits out of j subframes, and a noninterlaced-scanning display is carried out during the other j-k subframes associated with high-order weighted bits. The ratio of an addressing scan time to a subframe associated with a small weight is large, and the ratio of an addressing scan time to a whole frame is very large. If the addressing scan time can be reduced as mentioned above, a great effect would be exerted. Moreover, the luminance levels to be determined in relation to the subframes during which interlaced-scanning display is carried out are so low that the influence of the reduction on a whole picture is limited.
    • 已经公开了允许高分辨率和大量灰度级并引起不明显的闪烁的显示装置。 一帧被划分为j个子帧,或者由j个子帧组成,并且根据子帧逐个预定的亮度级产生光,以便表示图像的中间灰度。 重点在于可以独立地控制在一帧内的每个子帧期间执行的显示。 在与j个子帧中的低阶加权比特相关联的k个子帧期间执行隔行扫描显示,并且在与高阶加权比特相关联的其他j-k个子帧期间执行非隔行扫描显示。 寻址扫描时间与小重量相关联的子帧的比例大,寻址扫描时间与整个帧的比例非常大。 如果如上所述可以减少寻址扫描时间,则将产生很大的效果。 此外,与执行隔行扫描显示的子帧相关的亮度水平确定得如此之低,使得整个图像上的缩小的影响受到限制。
    • 30. 发明授权
    • Level converter for CMOS 3V to from 5V
    • 用于CMOS 3V至5V的电平转换器
    • US5680064A
    • 1997-10-21
    • US653973
    • 1996-05-28
    • Satoru MasakiAkinori YamamotoFusao SekiFumitaka AsamiKazuo OhnoMasao ImaiShinya Udo
    • Satoru MasakiAkinori YamamotoFusao SekiFumitaka AsamiKazuo OhnoMasao ImaiShinya Udo
    • G06F15/78G11C11/407H03K3/356H03K5/02H03K19/00H03K19/0185H03M1/76H03K19/0175H03K19/094
    • H03K3/356104H03K3/356165
    • A first level converter is provided with an input transistor circuit and an output transistor circuit. The input transistor circuit is supplied with power from a first power source and outputs a complementary signal on the basis of an input signal. The output transistor circuit is supplied with power from a second power source, and amplifies and outputs the complementary signal. A second level converter is provided with a pulse generating circuit and a signal output circuit. The pulse generating circuit is supplied with power from the first driving power source, and generates a one-shot pulse signal. The signal output circuit is supplied with power from the second driving power source, latches the one-shot pulse signal and outputs the signal. The semiconductor integrated circuit is provided with a first circuit system, a level conversion circuit and a second circuit system. The first circuit system is driven by being supplied with power from the first driving power source. The level conversion circuit is supplied with power from the first driving power source, and converts an output signal of the first circuit system into an input signal of the second circuit system. The second circuit system drives a signal with level converted by being supplied with power from the second driving power source. Further, in the semiconductor integrated circuit, a bidirectional level conversion circuit and a signal control means are provided, and the first and the second driving power sources are wired in a lattice form in a semiconductor chip.
    • 第一级转换器设置有输入晶体管电路和输出晶体管电路。 输入晶体管电路由第一电源供电,并根据输入信号输出互补信号。 输出晶体管电路从第二电源供电,并放大并输出互补信号。 第二电平转换器设置有脉冲发生电路和信号输出电路。 脉冲发生电路由第一驱动电源供电,并产生单触发脉冲信号。 信号输出电路由第二驱动电源供电,锁存单触发脉冲信号并输出​​信号。 半导体集成电路设置有第一电路系统,电平转换电路和第二电路系统。 第一电路系统通过从第一驱动电源供电来驱动。 电平转换电路由第一驱动电源供电,并将第一电路系统的输出信号转换为第二电路系统的输入信号。 第二电路系统通过从第二驱动电源供电而驱动具有电平转换的信号。 此外,在半导体集成电路中,设置有双向电平转换电路和信号控制装置,并且第一和第二驱动电源以晶格形式布线在半导体芯片中。