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    • 1. 发明授权
    • Pseudo-BJT based retinal focal-plane sensing system
    • 基于伪BJT的视网膜焦平面感测系统
    • US07215370B2
    • 2007-05-08
    • US10624517
    • 2003-07-23
    • Cheng-Ta ChiangChung-Yu Wu
    • Cheng-Ta ChiangChung-Yu Wu
    • H04N3/14H04N5/217H04N5/228G01R19/00H01L27/00H01L31/062
    • H04N5/3745H04N5/23241H04N5/357H04N5/376
    • A Pseudo Bipolar Junction Transistor(Pseudo-BJT) based retinal focal-plane sensing system is an instant image sensing and front-end processing system with the advantages of high dynamic range and instant image processing. In addition, the system proposes a Pseudo-BJT based retinal focal-plane sensor with adaptive current Schmitt trigger and smoothing network for applying a new Pseudo-BJT circuit structure to mimic parts of functions of the cells in the outer plexiform layer of the real retina. It is suitable to resolve the existing technical drawbacks performing major functions in optical image detecting circuits, such as image recognition, image tracing, robot vision, bar-code/character readers, etc.
    • 一种基于伪双极结晶体管(Pseudo-BJT)的视网膜焦平面感测系统是具有动态范围高,瞬时图像处理优势的即时图像感知和前端处理系统。 此外,该系统提出了一种基于Pseudo-BJT的视网膜焦平面传感器,具有自适应电流施密特触发和平滑网络,用于应用新的伪BJT电路结构,以模拟实际视网膜的外丛状层中的细胞功能的一部分 。 适合解决在图像识别,图像追踪,机器人视觉,条形码/字符读取器等光学图像检测电路中执行主要功能的现有技术缺陷。
    • 3. 发明授权
    • Methods for equalizing WDM systems
    • 均衡WDM系统的方法
    • US6115157A
    • 2000-09-05
    • US997822
    • 1997-12-24
    • Chris Wilhelm BarnardChung Yu Wu
    • Chris Wilhelm BarnardChung Yu Wu
    • H04J14/02H04Q11/04
    • H04J14/0221H04J14/0201H04J2203/006
    • A method of equalizing the channels of a WDM link comprises identifying an error threshold level BER.sub.Fail for the BER defined for each signal S(j) in accordance with the channel rate, and determining the attenuation A(j) of, for example, the power P(j) of each signal S(j) transmitted over the WDM link. The transmitter powers are adjusted taking into account the attenuations determined for all channels. The attenuation A(j) for channel (j) is determined by first setting the power P(j) of all signals S(j) to a maximum P.sub.Max, attenuating the power P(j) of channel (j) until the BER reaches the threshold value BER.sub.Fail, measuring the power corresponding to the BER.sub.Fail for that channel, and calculating the difference between the P.sub.Max and P(j).sub.Fail. The transmitter powers are then set according to the relationship P(j)=P.sub.Max -.eta.(A(j)-A.sub.Min), where .eta. is 0.8 for a system with 3-4 channels. The method may be used for multi-channel systems with intermediate nodes where channels are added and dropped.
    • 一种均衡WDM链路的信道的方法包括根据信道速率识别为每个信号S(j)定义的BER的误差阈值级别BERFail,并且确定例如功率的衰减A(j) 通过WDM链路发送的每个信号S(j)的P(j)。 考虑到为所有通道确定的衰减,调整发射机功率。 通过首先将所有信号S(j)的功率P(j)设置为最大值PMax来确定信道(j)的衰减A(j),衰减信道(j)的功率P(j)直到BER达到 阈值BERFail,测量与该通道的BERFail相对应的功率,并计算PMax与P(j)失败之间的差值。 然后根据P(j)= PMax-(a(j)-AMin)的关系设置发射机功率,对于具有3-4个信道的系统,其中eta为0.8。 该方法可以用于具有添加和丢弃信道的中间节点的多信道系统。
    • 4. 发明授权
    • Hexagon CMOS device
    • 六角形CMOS器件
    • US5838050A
    • 1998-11-17
    • US932010
    • 1997-09-17
    • Ming-Dou KerChung-Yu WuChien-Chang HuangChau-Neng WuTa-Lee Yu
    • Ming-Dou KerChung-Yu WuChien-Chang HuangChau-Neng WuTa-Lee Yu
    • H01L27/02H01L27/092H01L27/72
    • H01L27/0251H01L27/092
    • A CMOS device containing a plurality of hexagon cells over a semiconductor substrate is disclosed. Each hexagon cell includes a hexagonal ring gate, a drain diffusion region and a source diffusion region. The hexagonal ring gate is made of conducting materials and a dielectric layer over the substrate, therefore defining a channel region in the substrate between the gate and the substrate. The entire drain diffusion region in the substrate is enclosed by the hexagonal ring gate. The source diffusion region surrounds the hexagonal ring gate in the substrate. Each hexagon cell further provides a drain contact in the center of the drain diffusion region. A plurality of source contacts are arranged around the ring gate over the substrate. The hexagon cells of a unique hexagon device are surrounded by a first guard ring and a second guard ring. The hexagon device can be used as a CMOS output buffer or input ESD protection circuit to reduce the layout area of an integrated circuit.
    • 公开了一种在半导体衬底上包含多个六边形单元的CMOS器件。 每个六边形单元包括六边形环形栅极,漏极扩散区域和源极扩散区域。 六角环形栅极由导电材料和介质层构成,因此在栅极和衬底之间在衬底中限定沟道区。 衬底中的整个漏极扩散区域被六边形环形栅极包围。 源极扩散区域围绕衬底中的六角形环形栅极。 每个六边形单元还在漏极扩散区域的中心处提供漏极接触。 在环形栅极周围多个源极触点布置在衬底上。 独特的六边形装置的六边形单元被第一保护环和第二保护环包围。 六边形器件可用作CMOS输出缓冲器或输入ESD保护电路,以减少集成电路的布局面积。
    • 6. 发明授权
    • True type single-phase shift circuit
    • 真正型单相移相电路
    • US5592114A
    • 1997-01-07
    • US275172
    • 1994-07-14
    • Chung-Yu WuShu-Yuan Chin
    • Chung-Yu WuShu-Yuan Chin
    • H03K19/096H03K3/353
    • H03K19/0963
    • A true type single-phase shift circuit including a pair of PMOS transistors, a pair of NMOS transistors, a pair of first-type MOS transistors and one second-type transistor. The source terminals of the two PMOS transistors are both coupled to a first electric potential, the gate terminal of one PMOS transistor is coupled to a data signal, and the gate terminal of the second PMOS transistor is connected between the two first-type MOS transistors. The source terminals of the two NMOS transistors are both coupled to a second electric potential; the gate terminal of one NMOS transitors is coupled to the data signal and the gate of the second NMOS transistor is connected between the two first-type MOS transistors. The two first type MOS transistors are serially connected between the drain terminals of one of the two PMOS transistors and the drain terminal of one of the two NMOS transistors. Each gate terminal of the two first type MOS transistors is coupled to a clock pulse signal. The second-type MOS transistor is serially connected between the drain terminal of the other PMOS transistor and the drain terminal of the other NMOS transistor. The gate terminal of the second type MOS transistor is coupled with the clock pulse signal and its drain terminal is used as an output terminal.
    • 一种真正型单相移相电路,包括一对PMOS晶体管,一对NMOS晶体管,一对第一型MOS晶体管和一个第二型晶体管。 两个PMOS晶体管的源极端子都耦合到第一电位,一个PMOS晶体管的栅极端子耦合到数据信号,并且第二PMOS晶体管的栅极端子连接在两个第一型MOS晶体管 。 两个NMOS晶体管的源极端子都耦合到第二电位; 一个NMOS运算器的栅极端子耦合到数据信号,第二NMOS晶体管的栅极连接在两个第一型MOS晶体管之间。 两个第一类型MOS晶体管串联连接在两个PMOS晶体管之一的漏极端子和两个NMOS晶体管之一的漏极端子之间。 两个第一类型MOS晶体管的每个栅极端子耦合到时钟脉冲信号。 第二型MOS晶体管串联连接在另一个PMOS晶体管的漏极端子和另一个NMOS晶体管的漏极端子之间。 第二型MOS晶体管的栅极端子与时钟脉冲信号耦合,其漏极端子用作输出端子。
    • 10. 发明授权
    • Dual positive-feedbacks voltage controlled oscillator
    • 双正反馈压控振荡器
    • US08264290B2
    • 2012-09-11
    • US12805572
    • 2010-08-06
    • Zue-Der HuangChung-Yu Wu
    • Zue-Der HuangChung-Yu Wu
    • H03B5/12
    • H03B5/1228H03B5/1215H03B5/1218H03B5/1221H03B5/124H03B2200/0008
    • A dual positive-feedbacks voltage controlled oscillator includes an oscillation circuit and a cross coupled pair circuit. The oscillation circuit includes a first transistor, a second transistor, an inductor and a plurality of capacitors. The gates of the first and second transistors are opposite to each other and coupled to two points of the inductor. The inductor and the capacitors are formed as a LC tank. The cross coupled pair circuit includes a third transistor and a fourth transistor. The gates of the third and fourth transistors are cross coupled to two points of the inductor. Thereby, the gate of the third transistor is coupled to the gate of the second transistor; the gate of the fourth transistor is coupled to the gate of the first transistor; the drain of the third transistor is coupled to the source of the first transistor; and the drain of the fourth transistor is coupled to the source of the second transistor.
    • 双正压电压振荡器包括振荡电路和交叉耦合对电路。 振荡电路包括第一晶体管,第二晶体管,电感器和多个电容器。 第一和第二晶体管的栅极彼此相对并耦合到电感器的两个点。 电感器和电容器形成为LC箱。 交叉耦合对电路包括第三晶体管和第四晶体管。 第三和第四晶体管的栅极交叉耦合到电感器的两个点。 由此,第三晶体管的栅极耦合到第二晶体管的栅极; 第四晶体管的栅极耦合到第一晶体管的栅极; 第三晶体管的漏极耦合到第一晶体管的源极; 并且第四晶体管的漏极耦合到第二晶体管的源极。