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
    • 4. 发明授权
    • Virtual reality system with an optical position-sensing facility
    • 具有光学位置感测设备的虚拟现实系统
    • US5844674A
    • 1998-12-01
    • US771132
    • 1996-12-20
    • Ulrich Sieben
    • Ulrich Sieben
    • G06F3/00G06F3/01G06F3/033G06F3/042G01B11/26
    • G06F3/012G06F3/0304
    • A virtual reality system permanently connected with a device to be worn by a user is disclosed which has an optical position-sensing facility that contains at least one radiation source defining a fixed reference point in space and an optical receiving system permanently connected with the device. The optical receiving system includes three radiation detectors, whose optical axes are parallel to each other. The first radiation detector has a reception pattern which shows a rising/falling sensitivity characteristic in a first angular range. The second radiation detector has a reception pattern which shows a rising/falling sensitivity characteristic in a second angular range. The third radiation detector has a reception pattern which shows a slowly varying sensitivity characteristic within at least the first and second angular ranges.
    • 公开了一种与要由用户佩戴的设备永久连接的虚拟现实系统,其具有光学位置感测设备,其包含限定空间中的固定参考点的至少一个辐射源和与设备永久连接的光学接收系统。 光接收系统包括三个辐射检测器,其光轴彼此平行。 第一辐射检测器具有在第一角度范围内示出上升/下降灵敏度特性的接收图案。 第二辐射检测器具有在第二角度范围内示出上升/下降灵敏度特性的接收图案。 第三辐射检测器具有在至少第一和第二角度范围内显示缓慢变化的灵敏度特性的接收图案。
    • 5. 发明授权
    • Method of separating electronic elements
    • 分离电子元件的方法
    • US5824595A
    • 1998-10-20
    • US720771
    • 1996-10-03
    • Gunter IgelMartin Mall
    • Gunter IgelMartin Mall
    • B81C99/00H01L21/301H01L21/78H01L21/46
    • H01L21/78Y10S438/977
    • A method for separating elements associated within a body includes creating a separation region within the body, between the elements, leaving a region of the body which is to be thinned. The method then requires depositing a delay layer on the body, with an opening around the separation region. The delay layer has a predetermined removal rate relative to the removal rate of the body. Lastly, the method requires removing a predetermined amount of the delay layer, the separation region, and the region of the body to be thinned. Preferably, the removing is accomplished by etching, such as plasma etching, and the etch rate of the delay layer is lower than the etch rate for the separation region. In a preferred method, the predetermined removal rate and the positions of the openings in the delay layer are selected so that upon after etching, the elements remaining have a predetermined locus dependent thickness. Alternatively, the delay layers may be formed from the base material, formed from a metallic material or made from a silicon dioxide (SiO.sub.2) material. The base material is preferably a semiconductor wafer and the elements are semiconductor based electronic elements.
    • 用于分离在身体内相关联的元件的方法包括在体内,元件之间产生分离区域,留下要被减薄的身体的区域。 该方法然后需要在主体上沉积延迟层,其中围绕分离区域具有开口。 延迟层相对于身体的去除速度具有预定的去除速率。 最后,该方法需要去除预定量的延迟层,分离区域和待稀释的体的区域。 优选地,通过诸如等离子体蚀刻的蚀刻来实现去除,并且延迟层的蚀刻速率低于分离区域的蚀刻速率。 在优选的方法中,选择延迟层中的预定去除速率和开口的位置,使得在蚀刻之后,剩余的元素具有预定的轨迹依赖厚度。 或者,延迟层可以由基材形成,由金属材料形成或由二氧化硅(SiO 2)材料制成。 基材优选为半导体晶片,元件为基于半导体的电子元件。
    • 8. 发明授权
    • Digital demodulator for quadrature amplitude and phase modulated signals
    • 用于正交幅度和相位调制信号的数字解调器
    • US5767739A
    • 1998-06-16
    • US792924
    • 1997-01-21
    • Franz-Otto Witte
    • Franz-Otto Witte
    • H04S1/00H04L27/38
    • H04S1/007
    • Digital demodulator for a quadrature-modulated signal (sq) which transmits a combination signal by amplitude and phase modulation. A quadrature-signal source provides a digitized in-phase component (I) and a digitized quadrature component (Q) of low frequency. A resolver converts the two components (I,Q) into a magnitude signal (b) and a first phase signal (p1). A first feedback control loop and a second feedback control loop that maintains the slope (mp) of the first phase signal (p1) at the zero value and the time average (pm1) at the zero phase position, whereby a third phase signal (p3) is formed. From the resulting signals (b, p3, p3') a decoder forms at least one of the required components (R,L,P).
    • 用于通过幅度和相位调制发送组合信号的正交调制信号(sq)的数字解调器。 正交信号源提供数字化的同相分量(I)和低频的数字化正交分量(Q)。 解算器将两个分量(I,Q)转换成幅度信号(b)和第一相位信号(p1)。 第一反馈控制回路和第二反馈控制回路,其将第一相位信号(p1)的斜率(mp)保持在零值和零相位置处的时间平均值(pm1),由此第三相位信号(p3 ) 形成了。 从所得到的信号(b,p3,p3'),解码器形成所需要的分量(R,L,P)中的至少一个。
    • 10. 发明授权
    • MOS driver circuit for suppressing interference by preventing shunt
currents
    • MOS驱动电路,用于通过防止分流电流来抑制干扰
    • US5608346A
    • 1997-03-04
    • US491500
    • 1995-06-16
    • Burkhard Giebel
    • Burkhard Giebel
    • H03K19/00H03K17/16
    • H03K19/0013
    • A MOS driver circuit has a first output transistor and a second output transistor which are driven in push-pull into a conducting state by a first driver stage having first high impedance and first low impedance elements and a second driver stage having second high impedance and second low impedance elements, respectively. The high impedance driver elements drive the output transistors into a conducting or nonconducting state and the low impedance driver elements hold the output transistors in the nonconducting state. The junction of the output transistors can be connected to a load. A holding stage for each driver stage is cross coupled to a high impedance driver element of one output transistor and the low impedance driver element of the other output transistor, so as to drive one output transistor in the conducting state while holding the other output transistor in a nonconducting state. As a result, shunt currents between the output transistors are avoided even in the presence of output noise.
    • MOS驱动器电路具有第一输出晶体管和第二输出晶体管,所述第一输出晶体管和第二输出晶体管通过具有第一高阻抗和第一低阻抗元件的第一驱动级被推挽驱动而导通状态,以及具有第二高阻抗和第二高阻抗元件的第二驱动级 低阻抗元件。 高阻抗驱动器元件将输出晶体管驱动成导通或不导通状态,并且低阻抗驱动器元件将输出晶体管保持在非导通状态。 输出晶体管的结可以连接到负载。 每个驱动级的保持级与一个输出晶体管的高阻抗驱动器元件和另一个输出晶体管的低阻抗驱动元件交叉耦合,以便将一个输出晶体管驱动在导通状态,同时将另一个输出晶体管保持在 非导体状态。 结果,即使在存在输出噪声的情况下也避免了输出晶体管之间的分流电流。