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1. 发明授权

US06903662B2 Computer input device with individually positionable and programmable input members 有权
标题翻译：具有独立定位和可编程输入构件的计算机输入设备
公开(公告)号：US06903662B2
公开(公告)日：2005-06-07
申请号：US10246762
申请日：2002-09-19
申请人： Scott M. Rix , Larry J. Kelly , Michael S. Roberts , Preston D. Brown , William L. Burling, Jr. , Tim C. Kelly , Scott W. Summit
发明人： Scott M. Rix , Larry J. Kelly , Michael S. Roberts , Preston D. Brown , William L. Burling, Jr. , Tim C. Kelly , Scott W. Summit
IPC分类号： G06F3/02 , H01H11/00 , H01H13/70 , H03K17/94 , H03M11/00
CPC分类号： G06F3/0224 , G06F3/0202 , G06F3/0238 , H01H11/0018 , H01H13/70 , H01H13/705 , H01H2207/048 , H01H2221/026 , H01H2221/03 , H01H2221/034 , H01H2221/066 , H01H2229/042 , H01H2239/01 , H01H2239/024 , H01H2300/032 , Y02B90/224 , Y04S20/14
摘要： A configurable computer input device. A base is operable to generate and detect a radio frequency carrier signal. A plurality independently positionable input members are each operatively positioned in the vicinity of the base and individually operable to modulate the carrier signal responsive to its identity and status.
摘要翻译：可配置的计算机输入设备。基站可操作以产生和检测射频载波信号。多个可独立定位的输入构件各自可操作地定位在基座附近，并且可单独地操作以响应于其身份和状态来调制载波信号。

2. 发明授权

US07157651B2 Independently positionable and programmable key switches 有权
标题翻译：独立定位和可编程的钥匙开关
公开(公告)号：US07157651B2
公开(公告)日：2007-01-02
申请号：US10804575
申请日：2004-03-19
申请人： Scott M. Rix , Michael S. Roberts , Preston D. Brown , Scott W. Summit , Larry J. Kelly , Tim L. Canepa
发明人： Scott M. Rix , Michael S. Roberts , Preston D. Brown , Scott W. Summit , Larry J. Kelly , Tim L. Canepa
IPC分类号： H01H13/00
CPC分类号： G06F3/0224 , G06F3/0202 , G06F3/0238 , H01H11/0018 , H01H13/70 , H01H13/705 , H01H2207/048 , H01H2221/026 , H01H2221/03 , H01H2221/034 , H01H2221/066 , H01H2229/042 , H01H2239/01 , H01H2239/024 , H01H2300/032 , Y02B90/224 , Y04S20/14
摘要： An independently positionable key switch including a key base having a key cap receiving opening and at least one gripping feature operative to facilitate gripping of the key base. An actuatable key cap is arranged in the key receiving opening of the key base. The key cap is actuatable between an unactuated position and an actuated position.
摘要翻译：一种可独立定位的钥匙开关，包括具有钥匙盖接收开口的钥匙座和至少一个抓握特征，其操作以便于抓握钥匙座。钥匙座的钥匙接收口设有一个可致动钥匙盖。钥匙盖可在未致动位置和致动位置之间致动。

3. 发明授权

US5909144A Digital method and apparatus for reducing EMI emissions in digitally-clocked systems 失效
标题翻译：用于减少数字时钟系统中EMI辐射的数字方法和设备
公开(公告)号：US5909144A
公开(公告)日：1999-06-01
申请号：US978181
申请日：1997-11-25
申请人： Robert B. E. Puckette , Preston D. Brown
发明人： Robert B. E. Puckette , Preston D. Brown
IPC分类号： H04L25/02 , G06F1/04 , G06F1/10 , G06F7/62 , G09G5/18 , H03K5/156 , H03K7/00 , H03K23/66 , H03L7/06 , H04B1/68 , H03D1/04
CPC分类号： H03K7/00 , G06F1/04 , G06F1/10 , G06F7/62 , H03K23/667 , H03K5/156 , H03L7/06 , G09G5/18 , H04B2215/064 , H04B2215/067
摘要： A clock reference frequency is digitally derived from a base signal, then digitally modulated by ramping the clock reference frequency up and down about a desired frequency. The modulation occurs in periodic fashion at a prescribed modulation frequency. Such modulation spreads the electromagnetic energy of the system signals over a band that is a portion of the desired clock frequency. As a result, energy in harmonics of the respective system signals also are spread. When the energy spreading of any system signal or harmonic of such signal occurs over a bandwidth greater than the 120 kHz bandwidth of conventional communication receivers, adverse EMI emissions are reduced.
摘要翻译：时钟参考频率从基本信号数字地导出，然后通过以所需频率上下摆动时钟参考频率进行数字调制。调制以规定的调制频率以周期性方式发生。这种调制通过作为期望时钟频率的一部分的频带来扩展系统信号的电磁能量。结果，各系统信号的谐波能量也被扩散。当这种信号的任何系统信号或谐波的能量扩展在大于常规通信接收机的120kHz带宽的带宽上发生时，不利的EMI发射被减少。

4. 发明授权

US5412308A Dual voltage power supply 失效
标题翻译：双电压电源
公开(公告)号：US5412308A
公开(公告)日：1995-05-02
申请号：US214088
申请日：1994-03-15
申请人： Preston D. Brown
发明人： Preston D. Brown
IPC分类号： G05F1/577 , H02M3/156
CPC分类号： H02M3/156 , G05F1/577 , H02M2001/009 , Y10T307/675
摘要： A high efficiency power supply for producing two regulated output voltages (i.e. 3.3 and 5 volts) from an unregulated input voltage. The supply includes a 4-15 volt battery pack, a first (5.0 volt) output, a second (3.3 volt) output, and a ground. The positive terminal of the battery is connected directly to the second output. The 3.3 volt differential with ground is maintained by a voltage regulator that couples the negative terminal of the battery pack to ground (i.e. ground floats relative to the battery). A second voltage regulator couples the positive terminal of the battery pack to the first output, and maintains this first output at 5.0 volts relative to ground. This latter regulator is capable of boost operation, permitting a 5.0 volt output to be maintained even if the battery pack voltage is less than this value. Neither regulator includes a transformer, making the supply particularly well suited for use in miniaturized equipment, such as palmtop computers.
摘要翻译：用于从未调节的输入电压产生两个调节输出电压（即3.3和5伏特）的高效率电源。电源包括一个4-15伏电池组，一个（5.0伏）输出，一个第二个（3.3伏）输出和一个地。电池的正极端子直接连接到第二个输出端。具有接地的3.3伏差分由电压调节器维持，该电压调节器将电池组的负极端子接地（即，相对于电池的地面浮动）。第二电压调节器将电池组的正端子耦合到第一输出端，并将该第一输出保持在相对于地的5.0伏特。后一种调节器能够进行升压操作，即使电池组电压小于该值，也允许维持5.0伏输出。调节器都不包括变压器，使得电源特别适用于小型化设备，如掌上电脑。

5. 发明授权

US5736893A Digital method and apparatus for reducing EMI emissions in digitally-clocked systems 失效
公开(公告)号：US5736893A
公开(公告)日：1998-04-07
申请号：US592975
申请日：1996-01-29
申请人： Robert B. E. Puckette , Preston D. Brown
发明人： Robert B. E. Puckette , Preston D. Brown
IPC分类号： H04L25/02 , G06F1/04 , G06F1/10 , G06F7/62 , G09G5/18 , H03K5/156 , H03K7/00 , H03K23/66 , H03L7/06 , H04B1/68 , H03D1/04
CPC分类号： H03K7/00 , G06F1/04 , G06F1/10 , G06F7/62 , H03K23/667 , H03K5/156 , H03L7/06 , G09G5/18 , H04B2215/064 , H04B2215/067
摘要： A clock reference frequency is digitally derived from a base signal, then digitally modulated by ramping the clock reference frequency up and down about a desired frequency. The modulation occurs in periodic fashion at a prescribed modulation frequency. Such modulation spreads the electromagnetic energy of the system signals over a band that is a portion of the desired clock frequency. As a result, energy in harmonics of the respective system signals also are spread. When the energy spreading of any system signal or harmonic of such signal occurs over a bandwidth greater than the 120 kHz bandwidth of conventional communication receivers, adverse EMI emissions are reduced.

6. 发明授权

US5075792A Low power optical transceiver for portable computing devices 失效
标题翻译：便携式计算设备的低功耗光收发器
公开(公告)号：US5075792A
公开(公告)日：1991-12-24
申请号：US326140
申请日：1989-03-20
申请人： Preston D. Brown , Lester S. Moore , Dennis C. York
发明人： Preston D. Brown , Lester S. Moore , Dennis C. York
IPC分类号： G06F15/02 , H04B10/04 , H04B10/06 , H04B10/10 , H04B10/105 , H04B10/14 , H04B10/22 , H04B10/26 , H04B10/28
CPC分类号： H04B10/1143 , H04B10/40
摘要： Optical transceiver (22) for calculator-to-calculator or calculator-to-module communication. The transceiver (22) includes an IR transmitter (24) and IR receiver (26) designed for use in the low power, low cost environment of calculators and portable computing devices. The transceiver may be adapted to communicate with the CPU (central processing unit (14) of a calculator (90) directly or with that of a portable computing device via its serial port (43). Devices in which the optical transceiver may be incorporated include calculators, plugless modules, and books containing plugless modules. Data such as mathematical formulas within the book may be stored in the associated module and transferred instantaneously and accurately to an adjacent calculator upon request by the calculator.
摘要翻译：用于计算器到计算器或计算器到模块通信的光收发器（22）。收发器（22）包括设计用于计算器和便携式计算设备的低功率，低成本环境的IR发射器（24）和IR接收器（26）。收发器可以适于与计算器（90）的CPU（中央处理单元（14））直接或通过其串行端口（43）与便携式计算设备的中央处理单元（14）进行通信。其中可以包括光收发器的设备包括计算器，无插件模块和包含无插件模块的书籍，书中数学公式的数据可以存储在相关的模块中，并通过计算器的请求，将其瞬间准确地传送到相邻的计算器。

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