中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

31 records (took 0.015 seconds)

    ERGONOMIC BACK PILLOW, ERGONOMIC LEG SUPPORT, AND ERGONOMICFULL BODY SLEEP SUPPORT SYSTEM
    1.
    发明申请
    ERGONOMIC BACK PILLOW, ERGONOMIC LEG SUPPORT, AND ERGONOMICFULL BODY SLEEP SUPPORT SYSTEM 有权

    公开(公告)号：US20250114236A1

    公开(公告)日：2025-04-10

    申请号：US18911222

    申请日：2024-10-09

    Applicant: Jinghong Chen

    Inventor： Jinghong Chen

    IPC: A61F5/56

    Abstract: An ergonomic full body sleep support system includes an ergonomic back pillow and an ergonomic leg support for global musculoskeletal alignment and correction. The ergonomic back pillow supporting a global neutral spinal pelvic alignment of the head, neck, torso, and hip, consists of three segments including a transverse head and upper cervical supporting pillow, a transverse lumbar supporting segment, a longitudinal lower cervical and thoracic supporting segment aligned to the longitudinal centerlines of the other two segments, forming a longitudinally symmetrical assembly, a left cut-out and right cut-out to support a range of sleeping positions from supine to lateral sleep. An ergonomic leg support to elevate and facilitate leg venous return consists of a transverse lower portion, longitudinal upper left and right wings, and a cut-out. Ergonomic full body sleep support system provides a pragmatic solution to accommodate global neutral musculoskeletal alignment, facilitate the associated biological functions and sleep comfort.

    Buffer with inductance-based capacitive-load reduction
    2.
    发明授权
    Buffer with inductance-based capacitive-load reduction 失效
    具有基于电感的电容负载减小的缓冲器

    公开(公告)号：US07728629B2

    公开(公告)日：2010-06-01

    申请号：US11526306

    申请日：2006-09-25

    Applicant: Jinghong Chen

    Inventor： Jinghong Chen

    IPC: H03K19/094

    CPC classification number: H03F3/301 ,  H03F2203/30099 ,  H03F2203/30132

    Abstract: A buffer circuit uses (e.g., active) inductors for driving capacitive loads. In one embodiment, the buffer circuit has one or more stages, each stage having one CMOS inverter. Each CMOS inverter has one NMOS transistor and one PMOS transistor and is coupled to a stage input and a stage output. Additionally, at least one stage of the buffer circuit has two inductors, each coupled between a different voltage reference for the buffer circuit and the stage output. One inductor has a PMOS transistor coupled to the gate of an NMOS transistor and the other inductor has an NMOS transistor coupled to the gate of a PMOS transistor. When driving capacitive loads, the inductors partially tune out the apparent load capacitance CL, thereby improving the charging capabilities of inverter and enabling quicker charge and discharge times. Furthermore, partially tuning out apparent load capacitance facilitates the driving of larger capacitive loads.

    Abstract translation: 缓冲电路使用（例如，有源）电感器来驱动电容性负载。 在一个实施例中，缓冲电路具有一个或多个级，每级具有一个CMOS反相器。 每个CMOS反相器具有一个NMOS晶体管和一个PMOS晶体管，并且耦合到级输入和级输出。 此外，缓冲电路的至少一级具有两个电感器，每个电感耦合在用于缓冲电路的不同参考电压和级输出之间。 一个电感器具有耦合到NMOS晶体管的栅极的PMOS晶体管，另一个电感器具有耦合到PMOS晶体管的栅极的NMOS晶体管。 当驱动容性负载时，电感器部分地调出视在负载电容CL，从而提高逆变器的充电能力，并且能够实现更快的充电和放电时间。 此外，部分调谐视在负载电容有助于驱动较大的容性负载。

    Techniques for designing wide band low noise amplifiers
    3.
    发明授权
    Techniques for designing wide band low noise amplifiers 有权
    技术用于设计宽带低噪声放大器

    公开(公告)号：US07639079B2

    公开(公告)日：2009-12-29

    申请号：US11673264

    申请日：2007-02-09

    Applicant: Tienyu Chang ,  Jinghong Chen

    Inventor： Tienyu Chang ,  Jinghong Chen

    IPC: H03F3/45

    CPC classification number: H03F3/45188 ,  H03F1/08 ,  H03F1/26 ,  H03F1/42 ,  H03F3/45179 ,  H03F2200/294 ,  H03F2200/36 ,  H03F2200/372 ,  H03F2203/45481 ,  H03F2203/45526 ,  H03F2203/45532 ,  H03F2203/45554

    Abstract: A wideband amplifier having an amplifier input terminal and an amplifier output terminal includes at least one transistor coupled to the amplifier input terminal and an impedance element coupled between the amplifier input terminal and the amplifier output terminal. A feedback signal is transmitted between the amplifier output terminal and the amplifier input terminal by way of the impedance element wherein the feedback signal varies in accordance with changes in an impedance of the impedance element so as to peak a frequency response of the amplifier.

    Abstract translation: 具有放大器输入端子和放大器输出端子的宽带放大器包括耦合到放大器输入端子的至少一个晶体管和耦合在放大器输入端子和放大器输出端子之间的阻抗元件。 反馈信号通过阻抗元件在放大器输出端和放大器输入端之间传输，其中反馈信号根据阻抗元件的阻抗变化而变化，从而使放大器的频率响应达到峰值。

    ACOUSTIC CHANNEL-BASED DATA COMMUNICATIONS METHOD
    6.
    发明申请
    ACOUSTIC CHANNEL-BASED DATA COMMUNICATIONS METHOD 有权
    基于通道的数据通信方法

    公开(公告)号：US20160196825A1

    公开(公告)日：2016-07-07

    申请号：US14859342

    申请日：2015-09-20

    Applicant: Jinghong Chen

    Inventor： Jinghong Chen ,  Xiangning Chen ,  Jingzhun Feng

    IPC: G10L19/005 ,  G10L19/008 ,  G10L19/06 ,  G10L19/022

    CPC classification number: H04B11/00

    Abstract: It discloses an acoustic channel-based data communications method which performs channel coding on an original data signal using a CRC coding method and a BCH coding method to obtain a coded sequence; modulates the coded sequence using a preset audio sequence symbol set via a symbol mapping method to obtain a digital audio signal; selects a channel frequency band according to characteristics of a transmitting equipment and interference between frequency bands; and converts the digital audio signal into an analog audio signal through a digital-to-analog converter and transmits the signal to a channel for transmission according to the selected channel frequency band.

    Abstract translation: 它公开了一种基于声道的数据通信方法，其使用CRC编码方法和BCH编码方法对原始数据信号进行信道编码以获得编码序列; 使用经由符号映射方法设置的预设音频序列符号来调制编码序列以获得数字音频信号; 根据发射设备的特性和频带之间的干扰选择信道频带; 并通过数模转换器将数字音频信号转换为模拟音频信号，并根据所选择的频道频带将信号发送到用于传输的信道。

    OFDM-based acoustic communications system
    7.
    发明授权
    OFDM-based acoustic communications system 有权
    基于OFDM的声学通信系统

    公开(公告)号：US09054935B1

    公开(公告)日：2015-06-09

    申请号：US14599573

    申请日：2015-01-19

    Applicant: Jinghong Chen

    Inventor： Jinghong Chen ,  Xiangning Chen ,  Jingzhun Feng

    IPC: H04L27/28 ,  H04L27/26

    CPC classification number: H04L27/2666 ,  H04B11/00 ,  H04L27/2602 ,  H04L27/2634 ,  H04L27/265 ,  H04L27/2655 ,  H04L27/2656 ,  H04L27/2662 ,  H04L27/2675

    Abstract: Disclosed is an orthogonal frequency division multiplexing (OFDM)-based acoustic communications system. At an acoustic transmitting end, original data is modulated through channel coding into an acoustic signal of a data frame formed by multiple OFDM symbols and the acoustic signal is transmitted through a loudspeaker; at an acoustic receiving end, after a microphone receives the acoustic signal, and the acoustic signal is restored to the original data through demodulation and channel decoding. In a communication process, symbol synchronization is implemented through pilot information, and data frame synchronization is implemented in a manner of inserting baker codes, thereby simplifying processing, having a low bit error rate, improving acoustic communication efficiency, promoting development of acoustic communication, and having a good application prospect.

    Abstract translation: 公开了一种基于正交频分复用（OFDM）的声学通信系统。 在声发射端，将原始数据通过信道编码调制成由多个OFDM符号形成的数据帧的声信号，声信号通过扬声器传输; 在声音接收端，在麦克风接收到声信号之后，通过解调和信道解码将声信号恢复到原始数据。 在通信过程中，通过导频信息实现符号同步，并且以插入面包代码的方式实现数据帧同步，从而简化具有低误码率的处理，提高声通信效率，促进声通信的发展，以及 具有良好的应用前景。

    Passive mixer having transconductance amplifier with source degeneration capacitance
    8.
    发明授权
    Passive mixer having transconductance amplifier with source degeneration capacitance 有权
    无源混频器具有源极退化电容的跨导放大器

    公开(公告)号：US07688130B2

    公开(公告)日：2010-03-30

    申请号：US11865368

    申请日：2007-10-01

    Applicant: Shaorui Li ,  Jinghong Chen ,  Lawrence Rigge

    Inventor： Shaorui Li ,  Jinghong Chen ,  Lawrence Rigge

    IPC: G06F7/44

    CPC classification number: H03F3/45197 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1466 ,  H03F2203/45488

    Abstract: A passive mixer includes a transconductance amplifier having a source degeneration capacitance. The transconductance amplifier has an input for receiving an input signal and an output for outputting a current signal. A multiplier is provided for mixing a local oscillator signal with the current signal so as to provide an output signal at an output of the passive mixer. A capacitive load is connected to the output of the passive mixer.

    Abstract translation: 无源混频器包括具有源极退化电容的跨导放大器。 跨导放大器具有用于接收输入信号的输入和用于输出电流信号的输出。 提供了一个乘法器，用于将本地振荡器信号与当前信号混频，以便在无源混频器的输出处提供输出信号。 电容负载连接到无源混频器的输出端。

    Multiple frequency generator for quadrature amplitude modulated communications
    9.
    发明授权
    Multiple frequency generator for quadrature amplitude modulated communications 有权
    用于正交调幅通信的多频发生器

    公开(公告)号：US07598815B2

    公开(公告)日：2009-10-06

    申请号：US11866766

    申请日：2007-10-03

    Applicant: Jinghong Chen ,  Chunbing Guo ,  Fuji Yang

    Inventor： Jinghong Chen ,  Chunbing Guo ,  Fuji Yang

    IPC: H03B21/01 ,  H03L7/00 ,  H03L7/18

    CPC classification number: H03B21/00 ,  H03B25/00 ,  H03L7/183 ,  H03L7/185 ,  H04L27/2637 ,  H04L27/2653

    Abstract: Multiple carrier frequencies are provided from a phase locked loop, especially closely adjacent quadrature amplitude modulated subcarriers for multiplexed data communications. A quadrature voltage controlled oscillator (VCO) and cascaded frequency dividers provide feedback to a phase comparator to lock the VCO to a reference signal. In addition to frequency divider outputs for use as subcarriers, e.g., binary division factors of the VCO frequency, a quadrature mixer multiplies and adds corresponding quadrature components at two of the frequencies, to generate a differential signal at a difference frequency. The mixer may be outside of the feedback signal path but preferably is in the feedback path to suppress noise. A polyphase filter converts the mixer output to a quadrature signal useful as a subcarrier. The technique efficiently generates sequential integer multiples of a basic frequency, such as sixteen adjacent integer multiples of a frequency reference.

    Abstract translation: 多个载波频率从锁相环提供，特别是紧密相邻的正交幅度调制副载波，用于复用数据通信。 正交压控振荡器（VCO）和级联分频器向相位比较器提供反馈以将VCO锁定到参考信号。 除了用作子载波的分频器输出，例如VCO频率的二进制分频因子之外，正交混频器在两个频率上乘法并相加正交分量，以产生差分频率的差分信号。 混频器可以在反馈信号路径之外，但是优选地在反馈路径中以抑制噪声。 多相滤波器将混频器输出转换为可用作子载波的正交信号。 该技术有效地生成基本频率的顺序整数倍，例如频率参考的十六个相邻整数倍。

Patent Agency Ranking