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    • 1. 发明授权
    • Touch panel system
    • 触摸屏系统
    • US4698460A
    • 1987-10-06
    • US900646
    • 1986-08-26
    • Philip T. KreinRobert D. MeadowsBruce MurdockDaniel G. Teichmer
    • Philip T. KreinRobert D. MeadowsBruce MurdockDaniel G. Teichmer
    • G06F3/044G06F3/033G06F3/041G06F3/045G06F3/048G08C21/00
    • G06F3/0418G06F3/045
    • A touch panel has panel scanning signals selectively applied to the four sides of a touch sensing surface of the panel so as to establish alternating current voltage gradients in desired directions across the touch sensing surface. When the panel is touched, touch signals or currents result and are utilized by a touch location circuit in determining the location of touch. The impedance touch current resulting from a user's touch may also be determined and used. The touch panel circuit automatically compensates for changes in impedance touch current, such as result when users touch the panel with ungloved and gloved fingers. An analog multiplier is included in the touch location circuit to improve noise rejection. Auto nulling and automatic frequency adjustment is included in the touch panel device, together with overcurrent protection circuitry.
    • 触摸面板具有选择性地施加到面板的触摸感测表面的四个侧面的面板扫描信号,以便在穿过触摸感测表面的期望方向上建立交流电压梯度。 当面板被触摸时,触摸信号或电流产生并被触摸位置电路用于确定触摸的位置。 也可以确定和使用由用户触摸产生的阻抗触摸电流。 触摸面板电路自动补偿阻抗触摸电流的变化,例如用户用不受欢迎和戴手套的手指触摸面板时的结果。 触摸定位电路中包含一个模拟乘法器,以改善噪声抑制。 自动归零和自动频率调整包括在触摸屏设备中,以及过流保护电路。
    • 3. 发明授权
    • Touch panel with automatic frequency control
    • 具有自动频率控制的触摸面板
    • US4698461A
    • 1987-10-06
    • US900567
    • 1986-08-26
    • Robert D. MeadowsPhilip T. KreinBruce Murdock
    • Robert D. MeadowsPhilip T. KreinBruce Murdock
    • G06F3/044G06F3/033G06F3/041G06F3/045G06F3/048G08C21/00
    • G06F3/0418G06F3/045
    • A touch panel has panel scanning signals selectively applied to the four sides of a touch sensing surface of the panel so as to establish alternating current voltage gradients in desired directions across the touch sensing surface. When the panel is touched, touch signals result and are utilized by a touch location circuit in determining the location of touch. The impedence touch current resulting from a user's touch may also be determined and used. The touch panel circuit automatically adjusts the frequency of the applied panel signals to shift this frequency away from fixed frequency interference spectra, such as due to cathode-ray tube flyback signals, in the environment in which the touch panel is used. The touch location thereby minimizes the effects of such spectra on touch location determinations.
    • 触摸面板具有选择性地施加到面板的触摸感测表面的四个侧面的面板扫描信号,以便在穿过触摸感测表面的期望方向上建立交流电压梯度。 当面板被触摸时,触摸信号的结果被触摸位置电路用于确定触摸的位置。 也可以确定和使用由用户触摸产生的阻抗触摸电流。 触摸面板电路自动调整所应用的面板信号的频率,以便在使用触摸面板的环境中将该频率从固定频率干扰频谱(例如由于阴极射线管反激信号)偏离。 因此,触摸位置使得这种光谱对触摸位置确定的影响最小化。
    • 9. 发明申请
    • Optical networking module including protocol processing and unified software control
    • 光网络模块,包括协议处理和统一软件控制
    • US20070058985A1
    • 2007-03-15
    • US11513676
    • 2006-08-30
    • I. DentonBruce MurdockJames GimlettEdward HershbergScott LowreyRichard BoomanAlfred She
    • I. DentonBruce MurdockJames GimlettEdward HershbergScott LowreyRichard BoomanAlfred She
    • H04B10/00
    • H04J3/1617H04J2203/0085H04J2203/0089H04L69/12H04L69/18
    • An optical networking module is formed with an integrated module including optical, optical-electrical and protocol processing components, and complementary software. In one embodiment, the integral protocol processing component is a single ASIC and supports multiple protocols. The module is further equipped with support control electronics in support of control functions to manage the optical, optical-electrical as well as the multi-protocol processing component. The integrated module together with the complementary control software present to an optical networking equipment designer/developer a singular component that handles optical to electrical and electrical to optical conversion, as well as data link and physical sub-layer processing for a selected one of a plurality of datacom and telecom protocols, spanning local, regional as well as wide area networks. The integrated module and complementary control software further presents to the optical networking designer/developer a unified software interface for managing-the various components and functions.
    • 光网络模块形成有包括光学,光电和协议处理组件以及补充软件的集成模块。 在一个实施例中,集成协议处理组件是单个ASIC并且支持多种协议。 该模块还配备了支持控制电子设备,以支持控制功能,以管理光学,光电以及多协议处理组件。 该集成模块与互补控制软件一起提交给光网络设备设计者/开发人员,处理光电到电和电到光转换的单一组件,以及用于多个选定的一个的数据链路和物理子层处理 数据通信和电信协议,跨越本地,区域和广域网。 集成模块和互补控制软件还向光网络设计人员/开发人员提供了一个用于管理各种组件和功能的统一软件界面。