中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

185 records (took 0.118 seconds)

    Memory Controller and Method for Decoding Memory Devices with Early Hard-Decode Exit
    82.
    发明申请
    Memory Controller and Method for Decoding Memory Devices with Early Hard-Decode Exit 有权

    公开(公告)号：US20210028795A1

    公开(公告)日：2021-01-28

    申请号：US16790547

    申请日：2020-02-13

    Applicant: Microchip Technology Inc.

    Inventor： Peter John Waldemar Graumann

    IPC: H03M13/11 ,  H03M13/41 ,  H03M13/43 ,  H03M13/25 ,  H03M13/01 ,  G06F11/10

    Abstract: A method and apparatus for decoding are disclosed. The method includes receiving a first Forward Error Correction (FEC) block of read values, starting a hard-decode process in which a number of check node failures is identified and, during the hard-decode process comparing the identified number of check node failures to a decode threshold. When the identified number of check node failures is not greater than the decode threshold the hard-decode process is continued. When the identified number of check node failures is greater than the decode threshold, the method includes: stopping the hard-decode process prior to completion of the hard-decode process; generating output indicating that additional reads are required; receiving one or more additional FEC blocks of read values, mapping the first FEC block of read values and the additional FEC blocks of read values into soft-input values; and performing a soft-decode process on the soft-input values.

    High voltage switching linear amplifier and method therefor
    87.
    发明授权
    High voltage switching linear amplifier and method therefor 有权
    高压开关线性放大器及其方法

    公开(公告)号：US09225253B2

    公开(公告)日：2015-12-29

    申请号：US13658640

    申请日：2012-10-23

    Applicant: Microchip Technology, Inc.

    Inventor： Jimes Lei

    IPC: H02M3/335 ,  H02M3/158 ,  H02M3/337 ,  H02M7/10 ,  H02M1/00

    CPC classification number: H02M3/33569 ,  H02M3/158 ,  H02M3/337 ,  H02M7/103 ,  H02M2001/0045 ,  H02M2001/007

    Abstract: A switching linear amplifier has a DC-DC converter to increase a low input DC voltage to a first high voltage DC. A high voltage high frequency inverter is coupled to the DC-DC converter to generate high voltage pulses. A multistage voltage multiplier is coupled to the high voltage high frequency inverter to generate a second high voltage DC. A controlled charge and discharge circuit is coupled to the multistage voltage multiplier to drive a capacitive load.

    Abstract translation: 开关线性放大器具有DC-DC转换器，以将低输入DC电压增加到第一高压DC。 高压高频逆变器耦合到DC-DC转换器以产生高电压脉冲。 多级电压倍增器耦合到高压高频逆变器以产生第二高压DC。 受控充电和放电电路耦合到多级电压倍增器以驱动电容性负载。

    Ultrasound transmit beamformer integrated circuit and method
    88.
    发明授权
    Ultrasound transmit beamformer integrated circuit and method 有权
    超声波发射波束形成器集成电路及方法

    公开(公告)号：US09116229B2

    公开(公告)日：2015-08-25

    申请号：US11675517

    申请日：2007-02-15

    Applicant: Lazar A. Shifrin

    Inventor： Lazar A. Shifrin

    IPC: H03K7/08 ,  H04J7/00 ,  G01S15/10 ,  G10K11/34 ,  G01S7/52 ,  A61B8/00

    CPC classification number: G01S15/102 ,  A61B8/00 ,  G01S7/5202 ,  G10K11/346

    Abstract: The invention provides a novel method of transmit beamforming, which allows compact analog implementation of complex digital algorithms without compromising their features. It is aimed to support envelope shaping, apodization, and phase rotation per channel and per firing. Each of three embodiments represents a complete transmit channel driven by pulse-width modulated (PWM) waveforms stored in a conventional sequence memory. PWM signals controls the transmit pulse envelope (shape) by changing the duty cycle of the carrier. Beamformation data are loaded prior to a firing via serial interface. Under the direction of a controller, the circuitry allows high precision (beyond sampling rate) phase rotation of the carrier. It also provides transmit apodization (aperture weighting), which maintains an optimal trade-off among low sidelobe level and widening of the mainlobe. Implementing such an IC, the manufacturing cost of a high-end ultrasound system can be reduced. Equally, the proposed solution makes the benefits of digital transmit beamformers available to midrange and entry-level machines since it merely requires a modified programming of the sequence memory.

    Abstract translation: 本发明提供了一种发射波束形成的新颖方法，其允许复杂数字算法的紧凑模拟实现而不损害其特征。 其目的是支持每个通道和每次点火的包络整形，变迹和相位旋转。 三个实施例中的每一个表示由存储在常规序列存储器中的脉冲宽度调制（PWM）波形驱动的完整的发送信道。 PWM信号通过改变载波的占空比来控制发射脉冲包络（形状）。 在通过串行接口触发之前加载信息数据。 在控制器的指导下，电路允许载体的高精度（超过采样率）的相位旋转。 它还提供发射变迹（光圈加权），其保持低旁瓣水平和主瓣变宽之间的最佳权衡。 实现这样的IC，可以降低高端超声系统的制造成本。 同样，所提出的解决方案使数字传输波束形成器的优点可用于中端和入门级机器，因为它只需要对序列存储器进行修改编程。

    Low dropout light emitting diode (LED) ballast circuit and method therefor
    89.
    发明授权
    Low dropout light emitting diode (LED) ballast circuit and method therefor 有权
    低压差发光二极管（LED）镇流器电路及其方法

    公开(公告)号：US09041313B2

    公开(公告)日：2015-05-26

    申请号：US13871360

    申请日：2013-04-26

    Applicant: Microchip Technology, Inc.

    Inventor： Alexander Mednik

    IPC: H05B37/02 ,  G05F1/10 ,  H05B33/08

    CPC classification number: H05B33/0815 ,  H05B33/0818 ,  Y02B20/346

    Abstract: A ballast circuit for a Light Emitting Diode (LED) has a regulator element coupled to the LED and to an input voltage source. A control circuit is coupled to the LED and to an input voltage source. A first switching device is coupled in series with the regulator element. A second switching device is coupled to the input voltage and the control circuit.

    Abstract translation: 用于发光二极管（LED）的镇流器电路具有耦合到LED和输入电压源的调节器元件。 控制电路耦合到LED和输入电压源。 第一开关装置与调节器元件串联耦合。 第二开关器件耦合到输入电压和控制电路。

    Battery cover assembly having integrated battery condition monitoring
    90.
    发明授权
    Battery cover assembly having integrated battery condition monitoring 有权
    具有集成电池状态监测的电池盖组件

    公开(公告)号：US07205746B2

    公开(公告)日：2007-04-17

    申请号：US10853983

    申请日：2004-05-25

    Applicant: David C. Batson

    Inventor： David C. Batson

    IPC: H02J7/00

    CPC classification number: H02J7/0047 ,  G01R31/3644 ,  H02J2007/0098

    Abstract: A battery cover assembly having integrated battery condition monitoring for measuring electrical current passing to and from a battery post, including an electrically conductive collar for connecting to a post of a battery, and an electrically conductive terminal for receiving a connector of a load. An electrically conductive resistor having a known resistance extends between outer surfaces of the collar and the terminal. The battery cover assembly is incorporated into a battery, which may also include a voltage measuring device connected between the outer surfaces of the collar and the terminal for measuring the voltage drop across the resistor, memory for storing the known resistance of the resistor, and a digital processor programmed to receive the measured voltage drop from the voltage measuring device, retrieve the known resistance from the memory, and calculate current flow through the resistor based on the measured voltage drop and the known resistance, whereby current flow to and from the battery can be measured. A temperature measuring device may also be incorporated to measure temperature of the resistor located between the outer surfaces of the collar and the terminal. A resistance-temperature table may be stored in the memory and used to calculate the actual resistance of the resistor and then to compensate the current value from the voltage measured across the resistor.

    Abstract translation: 一种电池盖组件，其具有集成的电池状态监测，用于测量通过电池柱的电流，包括用于连接到电池柱的导电环，以及用于接收负载的连接器的导电端子。 具有已知电阻的导电电阻器在套环和端子的外表面之间延伸。 电池盖组件被结合到电池中，电池还可以包括连接在套环和端子的外表面之间的电压测量装置，用于测量电阻器两端的电压降，用于存储电阻器的已知电阻的存储器，以及 数字处理器被编程为从电压测量装置接收测量的电压降，从存储器中检索已知的电阻，并且基于所测量的电压降和已知电阻计算通过电阻器的电流，由此来自电池的电流可以 被测量。 还可以结合温度测量装置来测量位于套环和端子的外表面之间的电阻器的温度。 电阻温度表可以存储在存储器中，用于计算电阻器的实际电阻，然后从电阻器两端测量的电压补偿电流值。

Patent Agency Ranking