Differential high speed inductive driver with a bidirectional current
limiting output stage
    31.
    发明授权
    Differential high speed inductive driver with a bidirectional current limiting output stage 失效
    差分高速感应驱动器,具有双向限流输出级

    公开(公告)号:US5696460A

    公开(公告)日:1997-12-09

    申请号:US700765

    申请日:1996-08-12

    Abstract: An innovative circuit for driving the write head. All of the driving transistors are NPN, and are prevented from saturation. This is achieved by shifting and scaling down the differential drive applied to the pull-up transistors, to drive the pull-down transistors with levels such that the pull-down transistors cannot reach saturation. This provides a very simple circuit in which all four of the drive transistors are NPN, and all are kept out of saturation. Moreover, the peak write current applied to the head is precisely limited.

    Abstract translation: 用于驱动写入头的创新电路。 所有的驱动晶体管均为NPN,防止饱和。 这是通过移位和缩小施加到上拉晶体管的差分驱动来实现的,以便使下拉晶体管不能达到饱和的水平驱动下拉晶体管。 这提供了一个非常简单的电路,其中所有四个驱动晶体管都是NPN,并且全部都保持不饱和。 此外,施加到头部的峰值写入电流被精确地限制。

    Lobster Trap
    33.
    发明申请

    公开(公告)号:US20210127652A1

    公开(公告)日:2021-05-06

    申请号:US17112783

    申请日:2020-12-04

    Abstract: A lobster trap comprising a base panel, two side panels, two end panels, and a top panel defining therein an interior chamber is described. The components of the trap may be primarily or completely made of a plastic material, which increases durability and longevity of the trap. The top panel may have a smaller area than the base panel, and the side panels and/or the end panels are angled inward forming a trap having a substantially trapezoidal prism shape or a pyramidal frustum shape. The trap is shaped and configured to facilitate vertical stacking, and preferably to allow stacked traps to engage with and interlock with each other. The base panel of the trap may have a support member located along the base panel. The support member is at least partially hollow defining an internal compartment, and the compartment is able to receive weight elements that help to stabilize the trap during and after deployment into the ocean.

    Ordered porous mesostructured materials from nanoparticle-block copolymer self-assembly
    34.
    发明授权
    Ordered porous mesostructured materials from nanoparticle-block copolymer self-assembly 有权
    来自纳米颗粒 - 嵌段共聚物自组装的有序多孔介孔结构材料

    公开(公告)号:US08569391B2

    公开(公告)日:2013-10-29

    申请号:US12812714

    申请日:2009-01-13

    Abstract: The invention provides mesostructured materials and methods of preparing mesostructured materials including metal-rich mesostructured nanoparticle-block copolymer hybrids, porous metal-nonmetal nanocomposite mesostructures, and ordered metal mesostructures with uniform pores. The nanoparticles can be metal, metal alloy, metal mixture, intermetallic, metal-carbon, metal-ceramic, semiconductor-carbon, semiconductor-ceramic, insulator-carbon or insulator-ceramic nanoparticles, or combinations thereof. A block copolymer/ligand-stabilized nanoparticle solution is cast, resulting in the formation of a metal-rich (or semiconductor-rich or insulator-rich) mesostructured nanoparticle-block copolymer hybrid. The hybrid is heated to an elevated temperature, resulting in the formation of an ordered porous nanocomposite mesostructure. A nonmetal component (e.g., carbon or ceramic) is then removed to produce an ordered mesostructure with ordered and large uniform pores.

    Abstract translation: 本发明提供介孔结构材料和制备介孔结构材料的方法,包括富金属介孔结构的纳米颗粒 - 嵌段共聚物杂化物,多孔金属 - 非金属纳米复合材料结构和具有均匀孔的有序金属介孔结构。 纳米颗粒可以是金属,金属合金,金属混合物,金属间化合物,金属碳,金属陶瓷,半导体 - 碳,半导体 - 陶瓷,绝缘体 - 碳或绝缘体陶瓷纳米颗粒或其组合。 浇铸嵌段共聚物/配体稳定的纳米颗粒溶液,导致形成富含金属(或富含半导体的或富含绝缘体的)介孔结构的纳米颗粒 - 嵌段共聚物杂化物。 将混合物加热到升高的温度,导致形成有序的多孔纳米复合材料的介孔结构。 然后去除非金属组分(例如碳或陶瓷)以产生具有有序和大的均匀孔的有序介孔结构。

    SNAPSHOT PROCESSING OF TIMING DATA
    35.
    发明申请
    SNAPSHOT PROCESSING OF TIMING DATA 有权
    时序数据的快速处理

    公开(公告)号:US20120281796A1

    公开(公告)日:2012-11-08

    申请号:US13102557

    申请日:2011-05-06

    CPC classification number: H04L7/0278

    Abstract: A method for providing timing recovery from a received digital data stream where the digital data stream is a series of consecutive data samples. The method separates the data stream into a series of consecutive observation periods where each observation period includes the same number of consecutive data samples. The method also includes identifying a series of consecutive timing recovery data samples in each observation period where the timing recovery data samples are used for timing recovery and other data samples in the observation period are not used for timing recovery, and where the number of data samples used for timing recovery in each observation period is less than the number of data samples that are not used for timing recovery in the observation period. The method then uses the timing recovery data samples for timing recovery in each observation period.

    Abstract translation: 一种用于从接收的数字数据流提供定时恢复的方法,其中数字数据流是一系列连续数据样本。 该方法将数据流分离成一系列连续观察周期,其中每个观察周期包括相同数目的连续数据样本。 该方法还包括在定时恢复数据样本用于定时恢复的每个观察周期中识别一系列连续的定时恢复数据样本,并且观察期间中的其他数据采样不用于定时恢复,并且其中数据样本的数量 在每个观察期间用于定时恢复的数据小于在观察期间不用于定时恢复的数据样本的数量。 然后,该方法在每个观察周期中使用定时恢复数据样本进行定时恢复。

    UNIVERSAL TIMING RECOVERY CIRCUIT
    36.
    发明申请
    UNIVERSAL TIMING RECOVERY CIRCUIT 有权
    通用时序恢复电路

    公开(公告)号:US20120281795A1

    公开(公告)日:2012-11-08

    申请号:US13102530

    申请日:2011-05-06

    CPC classification number: H04L7/0278

    Abstract: A timing recovery system that provides a timing estimate between a transmitter clock and a receiver clock. The system includes a down-converter that converts a received intermediate frequency signal in the receiver and down-converts, using Fs/4 down-conversion, the received signal into baseband in-phase and quadrature phase signals. The baseband in-phase and quadrature phase signals are sent to a direct down-converter that frequency shifts the in-phase and quadrature phase. The frequency-shifted in-phase and quadrature phase baseband signals are then low-pass filtered in order to isolate the frequency components of interest, reduce noise, and remove zeros that are artifacts of the Fs/4 down-conversion. The signals are sent to a square-law non-linearity circuit that provides squaring non-linearity to generate non-linear in-phase and quadrature phase signals. The non-linear in-phase and quadrature phase signals are sent to a single-pole, low-pass post-filter circuit that generates the timing estimate.

    Abstract translation: 定时恢复系统,其提供发射机时钟和接收机时钟之间的定时估计。 该系统包括一个下变频器,其转换接收机中接收到的中频信号,并使用Fs / 4下变频将接收的信号下变频为基带同相和正交相位信号。 基带同相和正交相位信号被发送到频率偏移同相和正交相位的直接下变频器。 然后对频移的同相和正交相位基带信号进行低通滤波,以隔离感兴趣的频率分量,降低噪声,并除去作为Fs / 4下转换的伪影的零点。 信号被发送到平方律非线性电路,其提供平方非线性以产生非线性同相和正交相位信号。 非线性同相和正交相位信号被发送到产生定时估计的单极,低通后置滤波器电路。

    Vision testing system and method
    37.
    发明授权
    Vision testing system and method 有权
    视力检测系统及方法

    公开(公告)号:US08152301B2

    公开(公告)日:2012-04-10

    申请号:US12093542

    申请日:2006-11-15

    CPC classification number: A61B3/032 A61B3/0041 A61B3/028

    Abstract: A method for testing a person's vision is disclosed. The method includes providing, for display to the person, one or more sequences of test images, each test image including one or more test symbols. For each test image, a target symbol is identified to the person. The person then views each test image in the sequence and activates a control in response to recognizing a test symbol that replicates the shape of the target symbol. At the completion of the sequence, a parameter value associated with the activations is processed and correlated with a vision metric. A system for testing a person's vision is also disclosed.

    Abstract translation: 公开了一种测试人的视力的方法。 该方法包括向人提供一个或多个测试图像序列,每个测试图像包括一个或多个测试符号。 对于每个测试图像,目标符号被识别给该人。 该人然后按顺序查看每个测试图像,并响应于识别复制目标符号的形状的测试符号来激活控件。 在序列完成后,与激活相关联的参数值被处理并与视觉度量相关联。 还公开了一种用于测试人的视力的系统。

    Ophthalmic lens element for myopia correction
    38.
    发明授权
    Ophthalmic lens element for myopia correction 有权
    用于近视矫正的眼科镜片

    公开(公告)号:US07862171B2

    公开(公告)日:2011-01-04

    申请号:US12083227

    申请日:2006-10-12

    CPC classification number: G02C7/063 G02C2202/24

    Abstract: An ophthalmic lens element (100) for correcting myopia in a wearer's eye is disclosed. The lens element (100) includes a central zone (102) and a peripheral zone (104). The central zone (102) provides a first optical correction for substantially correcting myopia associated with the foveal region of the wearer's eye. The peripheral zone (104) surrounds the central zone (102) and provides a second optical correction for substantially correcting myopia or hyperopia associated with a peripheral region of the retina of the wearer's eye. A system and method for dispensing or designing an ophthalmic lens element for correcting myopia in a wearer's eye is also disclosed.

    Abstract translation: 公开了一种用于矫正佩戴者眼睛中的近视的眼用透镜元件(100)。 透镜元件(100)包括中心区域(102)和周边区域(104)。 中心区域(102)提供用于基本上校正与佩戴者眼睛的中心凹区域相关联的近视的第一光学校正。 周边区域(104)围绕中心区域(102)并且提供第二光学校正,用于基本上校正与佩戴者的眼睛的视网膜的周边区域相关联的近视或远视。 还公开了一种用于分配或设计用于矫正佩戴者眼睛中的近视的眼科镜片元件的系统和方法。

Patent Agency Ranking