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    • 91. 发明申请
    • METHOD OF IMPLEMENTATION OF AUDIO CODEC
    • 实现音频编解码器的方法
    • US20070027677A1
    • 2007-02-01
    • US11458143
    • 2006-07-18
    • He OuyangBinghui WuYi ZhouLin LuoKai Wan
    • He OuyangBinghui WuYi ZhouLin LuoKai Wan
    • G10L19/00
    • G10L19/032G10L19/002
    • This invention discloses an implementation of audio codec, which has low computational complexity, small memory footprint and high coding efficiency. It can be used in handheld devices, SoC or ASIC products and embedded systems. At the encoder side: first, apply time-to-frequency transform to audio signals, obtaining un-quantized spectrum data; second, based on the un-quantized spectrum data and target bit count, calculate the corresponding information of optimal scale factor, frequency band group, code table index and quantized spectrum by iteration; third, calculate and format bit-stream; fourth, output formatted bit-stream. At the decoder side: parse the formatted bit-stream, apply decoding and inverse quantization to the spectrum of each frame, reconstruct temporal audio data by frequency-to-time transform, and reconstruct the time-domain signals of each channel.
    • 本发明公开了一种具有低计算复杂度,小内存占用和高编码效率的音频编解码器的实现。 它可以用于手持设备,SoC或ASIC产品和嵌入式系统。 在编码器侧:首先,对音频信号进行时间 - 频率变换,获得未量化的频谱数据; 第二,基于未量化的频谱数据和目标比特数,通过迭代计算最佳比例因子,频带组,码表索引和量化频谱的对应信息; 第三,计算和格式比特流; 第四,输出格式化的比特流。 在解码器侧:解码格式化的比特流,对每个帧的频谱应用解码和反量化,通过频率 - 时间变换重建时间音频数据,并重构每个信道的时域信号。
    • 95. 发明授权
    • Management apparatus and method of distributed storage system
    • 分布式存储系统的管理装置和方法
    • US09053021B2
    • 2015-06-09
    • US13618815
    • 2012-09-14
    • Zhihui LiKun HeJun YuYi Zhou
    • Zhihui LiKun HeJun YuYi Zhou
    • G06F11/07G06F11/20
    • G06F11/0709G06F11/1662G06F11/2069G06F11/2094G06F2201/815
    • Methods and systems for managing distributed storage servers are described. The storage servers may be selected and divided into multiple sequences and multiple virtual node groups. Each sequence of the multiple sequences may include a predetermined number of storage servers, and each virtual node group may include a set of storage servers of the multiple sequences. Data may be transferred to storage severs of a virtual node group. If the storage servers have instantaneous or temporary malfunctions, the data may be transferred to temporary storage servers and then transferred back the storage servers after being revived. If the storage servers have permanent malfunctions, the data may be transferred to the temporary storage servers. The storage servers may be replaced using the temporary storage servers.
    • 描述用于管理分布式存储服务器的方法和系统。 可以选择存储服务器并将其划分为多个序列和多个虚拟节点组。 多个序列的每个序列可以包括预定数量的存储服务器,并且每个虚拟节点组可以包括多个序列的一组存储服务器。 数据可以传送到虚拟节点组的存储切换器。 如果存储服务器具有即时或暂时的故障,则数据可能会传输到临时存储服务器,然后在恢复后将存储服务器传回。 如果存储服务器具有永久性故障,则数据可能会传输到临时存储服务器。 可以使用临时存储服务器来替换存储服务器。
    • 97. 发明授权
    • Temperature sensing circuit and method
    • 温度检测电路及方法
    • US08482330B2
    • 2013-07-09
    • US12574815
    • 2009-10-07
    • Yi Zhou
    • Yi Zhou
    • H03H11/26
    • H03K3/64G01K7/346
    • A low cost, low power and low noise temperature sensor circuit is disclosed. A control circuit asserts a start signal and a stop signal, causes a pulse generating circuit to generate a finite number of pulses, whose pulse frequency varies with temperature. A counter counts the finite number of pulses and outputs the count which can be used to represents the temperature. Further, the pulse generating circuit includes a delay circuit, a pulse width controlling circuit, and a synchronizer with asynchronous clear.
    • 公开了低成本,低功率和低噪声温度传感器电路。 控制电路断言启动信号和停止信号,使脉冲发生电路产生脉冲频率随温度变化的有限数量的脉冲。 计数器计数有限数量的脉冲,并输出可用于表示温度的计数。 此外,脉冲发生电路包括延迟电路,脉冲宽度控制电路和具有异步清除的同步器。
    • 100. 发明申请
    • System And Method For Effectively Performing Enhanced Mobile-Device Location Procedures
    • 有效执行增强型移动设备定位程序的系统和方法
    • US20130063303A1
    • 2013-03-14
    • US13625934
    • 2012-09-25
    • Yi Zhou
    • Yi Zhou
    • G01S19/46
    • G01S19/09G01S19/48
    • A system and method for effectively performing enhanced device location procedures to determine the current physical location of a mobile device includes a plurality of satellites that wirelessly transmit satellite beacon signals, a plurality of base stations that wirelessly transmit pilot signals, and a plurality of access points that wirelessly transmit access-point beacon signals. A location detector of the mobile device coordinates a device location procedure by measuring the satellite beacon signals, the pilot signals, and the access-point beacon signals to generate corresponding satellite information, base station information, and access point information. The location detector analyzes the satellite information, the base station information, and the access point information to select an optimal system configuration from the most effective satellites, base stations, and access points. The location detector then utilizes the optimal system configuration to accurately calculate the current physical location of the mobile device.
    • 用于有效执行增强的设备定位过程以确定移动设备的当前物理位置的系统和方法包括:无线发射卫星信标信号的多个卫星,无线发射导频信号的多个基站以及多个接入点 无线发送接入点信标信号。 移动设备的位置检测器通过测量卫星信标信号,导频信号和接入点信标信号来协调设备定位过程,以产生对应的卫星信息,基站信息和接入点信息。 位置检测器分析卫星信息,基站信息和接入点信息,以从最有效的卫星,基站和接入点中选择最佳系统配置。 然后,位置检测器利用最佳系统配置来精确地计算移动设备的当前物理位置。