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13 条记录 (耗时 0.02 秒)

    Multi-use notebook computer carrying case
    2.
    发明授权
    Multi-use notebook computer carrying case 失效
    多用笔记本电脑便携包

    公开(公告)号：US5400903A

    公开(公告)日：1995-03-28

    申请号：US94525

    申请日：1993-07-20

    申请人： David M. Cooley

    发明人： David M. Cooley

    IPC分类号： A45C5/00 ,  A45C13/02 ,  G06F1/16 ,  B65D85/38

    CPC分类号： A45C13/02 ,  G06F1/1628 ,  A45C2013/025 ,  A45C5/00 ,  H01H2239/032

    摘要： A multi-use notebook computer carrying case includes a top cover member and a bottom cover member. An accordion-like shroud connects the sides of the top and bottom cover members. A bottom tray having a height adjust mechanism is secured within the bottom cover member. The bottom cover member houses a plurality of drawers capable of being extended away from the bottom cover member to expose a storage compartment and provide additional working surface area. The bottom cover member further includes a height adjustable wrist pad. A protective windshield housed within the top cover member, is selectively engageable to protect against a hostile environment.

    摘要翻译： 多用途笔记本电脑手提箱包括顶盖构件和底盖构件。 手风琴式的护罩连接顶盖和底盖的两侧。 具有高度调节机构的底部托盘固定在底盖构件内。 底盖构件容纳多个能够从底盖构件延伸的抽屉，以露出储藏室并提供额外的工作表面积。 底盖构件还包括高度可调的腕垫。 容纳在顶盖构件内的保护性挡风玻璃可选择性地接合以防止敌对环境。

    Supervisory audio tone based carrier-to-interference measurement in a mobile cellular communication system
    5.
    发明授权
    Supervisory audio tone based carrier-to-interference measurement in a mobile cellular communication system 失效
    在移动蜂窝通信系统中基于监听音频的载波对干扰测量

    公开(公告)号：US5752190A

    公开(公告)日：1998-05-12

    申请号：US99503

    申请日：1993-07-30

    申请人： John D. Kaewell, Jr. ,  David M. Cooley

    发明人： John D. Kaewell, Jr. ,  David M. Cooley

    IPC分类号： H04W16/14 ,  H04W24/00 ,  H04W36/30 ,  H04W84/04 ,  H04W88/08 ,  H04Q7/22

    CPC分类号： H04W24/00 ,  H04W16/14 ,  H04W36/30 ,  H04W84/042 ,  H04W88/08

    摘要： A Supervisory Audio Tone (SAT) based Carrier-to-Interference (C/I) ratio measurement system uses the SAT tone to determine the desired signal to undesired interferers so that an intelligent hand-off decision can be made in a digital cellular communication system. The measurement is implemented by digital signal processors which allows additional signal processing and subsequently noise rejection over analog techniques. The received level of the desired SAT as well as the received levels of the SATs for the co-channel interferers is detected. The ratio of the desired SAT level to the sum of the undesired SAT levels provides the C/I measurement. By monitoring this C/I measurement, the base station can determine when to make a hand-off. This SAT based C/I measurement system also aids in the selection of a candidate cell to which the subscriber is handed-off. Surveillance receivers in the candidate cells make SAT based C/I measurements as well as Received Signal Strength Indication (RSSI) measurements. The cell with the most favorable channel conditions would be the cell to which the hand-off is made.

    摘要翻译： 基于监控音频（SAT）的载波干扰（C / I）比率测量系统使用SAT音调来确定期望的信号到不想要的干扰源，从而可以在数字蜂窝通信系统中进行智能切换决策 。 该测量由数字信号处理器实现，其允许额外的信号处理和随后的噪声抑制超过模拟技术。 检测所期望的SAT的接收电平以及同信道干扰源的SAT的接收电平。 所需SAT电平与不需要的SAT电平之和的比率提供C / I测量值。 通过监视该C / I测量，基站可以确定何时进行切换。 这种基于SAT的C / I测量系统还有助于选择用户被切换的候选小区。 候选单元中的监视接收器使基于SAT的C / I测量以及接收信号强度指示（RSSI）测量。 具有最有利的信道条件的小区将是进行切换的小区。

    Modulator having fractional sample/symbol time
    7.
    发明授权
    Modulator having fractional sample/symbol time 失效
    调制器具有分数采样/符号时间

    公开(公告)号：US5361046A

    公开(公告)日：1994-11-01

    申请号：US995486

    申请日：1992-12-22

    申请人： John D. Kaewell, Jr. ,  David M. Cooley

    发明人： John D. Kaewell, Jr. ,  David M. Cooley

    IPC分类号： G06F1/03 ,  H04L27/12 ,  H03C3/00 ,  H04L27/00 ,  H04L27/18

    CPC分类号： G06F1/0328 ,  H04L27/122

    摘要： A modulator capable of providing a fractional sample or symbol 995486 time employs a decimation counter (23) responsive to a clock having a frequency equal to M/N.times.(data symbol clock), where M is an interpolation factor and N is a decimation factor, for generating a data symbol clock to select FSK symbols from a sampled data array (21). A multiplier (26) receives the FSK symbols and multiplies the symbols by a weighting factor determined by the decimation counter. When the decimation counter wraps around due to a modulo M operation, a fractional weight is calculated for the current FSK symbol, then a new FSK symbol is selected, and then a fractional weight is calculated for the new FSK symbol. When the decimation counter has not wrapped, the full weighting, N, is output for the current FSK symbol.

    摘要翻译： 能够提供分数样本或符号995486时间的调制器响应于具有等于M / Nx（数据符号时钟）的频率的时钟来采用抽取计数器（23），其中M是内插因子，N是抽取因子， 用于产生数据符号时钟以从采样数据阵列（21）中选择FSK符号。 乘法器（26）接收FSK符号并将符号乘以由抽取计数器确定的加权因子。 当抽取计数器由于模M运算而包围时，计算当前FSK符号的分数权重，则选择新的FSK符号，然后计算新的FSK符号的分数权重。 当抽取计数器未包装时，输出当前FSK符号的全加权值N。

    Dedicated local internet radio
    8.
    发明授权
    Dedicated local internet radio 有权
    专用本地互联网广播

    公开(公告)号：US07817591B2

    公开(公告)日：2010-10-19

    申请号：US10645961

    申请日：2003-08-22

    申请人： David M. Cooley

    发明人： David M. Cooley

    IPC分类号： H04Q7/00 ,  H04J3/26

    CPC分类号： H04W4/02 ,  H04L12/1886 ,  H04L12/189 ,  H04L29/06027 ,  H04L65/4076 ,  H04W4/06 ,  H04W76/20 ,  H04W80/00 ,  H04W84/10 ,  H04W88/02

    摘要： A dedicated wireless data connection to the Internet through which digital broadcasts are streamed to mobile devices specifically designed to receive and play the content of the broadcasts. A user is supplied with a hand-held mobile terminal device specifically designed for the reception and playback of Internet radio wirelessly and the content available to the user of the device is automatically pre-specified based upon the connection node with which the device is currently communicating. The device creates and maintains a wireless connection to the Internet through any existing access technology (e.g., cellular or Wi-Fi access technology), manages the connection, including roaming, and buffers data in order to present a continuous stream of content to the end-user. Using this model, local advertisers and/or stations can pay the wireless service provider to have their content broadcast in a particular region, thereby enabling regional advertising to be delivered to listeners.

    摘要翻译： 将专用无线数据连接到互联网，数字广播通过该专用无线数据流传输到专门用于接收和播放广播内容的移动设备。 用户被提供有专门设计用于无线接收和回放因特网无线电的手持移动终端设备，并且可以基于设备正在与之通信的连接节点来自动预先指定可用于设备的用户的内容 。 该设备通过任何现有的接入技术（例如，蜂窝或Wi-Fi接入技术）创建和维护到因特网的无线连接，管理连接，包括漫游和缓冲数据，以便向终端呈现连续的内容流 -用户。 使用该模型，本地广告商和/或站可以支付无线服务提供商将其内容在特定区域广播，从而使区域广告能够传递给听众。

    Compatible analog channel unit for a digital cellular telephone system
    10.
    发明授权
    Compatible analog channel unit for a digital cellular telephone system 失效
    适用于数字蜂窝电话系统的兼容模拟通道单元

    公开(公告)号：US5436955A

    公开(公告)日：1995-07-25

    申请号：US99502

    申请日：1993-07-30

    申请人： John D. Kaewell, Jr. ,  David M. Cooley

    发明人： John D. Kaewell, Jr. ,  David M. Cooley

    IPC分类号： H04W88/08 ,  H04M11/00 ,  H04Q7/22

    CPC分类号： H04W88/08

    摘要： A compatible analog channel unit for a digital cellular telephone system services both analog and digital mode subscribers on the same system hardware. The analog channel unit which may be configured by the service provider to permit easy upgrading of service during the life of the equipment without additional capital expense to the service provider. All analog system functions required of an analog cellular base station are provided in firmware and executed on commercial digital signal processors (DSPs). The same DSPs, when down-loaded with different firmware, perform TDM/TDMA related functions as required of a digital cellular base station. A system operator can configure channel units from a remote location by simply downloading the appropriate firmware. The channel unit firmware, whether analog or digital, is downloaded into the system hardware according to the assigned mode. This permits dynamic channel allocation according to system requirements. Since this is a digital system, special features may be added by simply revising the system firmware. This means future product enhancements may be provided without affecting the system hardware.

    摘要翻译： 用于数字蜂窝电话系统的兼容模拟通道单元在同一系统硬件上为模拟和数字模式用户提供服务。 可以由服务提供商配置的模拟通道单元，以允许在设备寿命期间容易地升级服务，而无需对服务提供商额外的资本支出。 模拟蜂窝基站所需的所有模拟系统功能都在固件中提供，并在商业数字信号处理器（DSP）上执行。 相同的DSP在下载不同的固件时，按照数字蜂窝基站的要求执行TDM / TDMA相关功能。 系统操作员可以通过简单地下载相应的固件来从远程位置配置通道单元。 通道单元固件（无论是模拟还是数字）根据分配的模式下载到系统硬件中。 这允许根据系统要求进行动态信道分配。 由于这是一个数字系统，所以可以通过简单地修改系统固件来添加特殊功能。 这意味着未来的产品增强可能会在不影响系统硬件的情况下提供。