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    • 82. 发明申请
    • Method and System for UMTS HSDPA Shared Control Channel Processing
    • UMTS HSDPA共享控制信道处理方法与系统
    • US20080130556A1
    • 2008-06-05
    • US11565520
    • 2006-11-30
    • Li Fung ChangHongwei Kong
    • Li Fung ChangHongwei Kong
    • H04Q7/22
    • H04W24/02H03M13/37
    • Aspects of a method and system for UMTS HSDPA Shared Control Channel processing may include calculating at a receiver, for each one of a plurality of control channels, a quality metric derived from at least one Viterbi Decoder state metric. A control channel may be selected on the basis of the quality metrics, where the quality metric is selected that provides maximum confidence. The selected control channel may be chosen if its corresponding 3GPP metric is greater than a specified threshold, where the threshold is a design parameter. A validity of a selected control channel may be determined based on consistency and a CRC, where the CRC may be derived from decoding a sub-frame. The calculating and selecting may be done for a first slot of a sub-frame for High-Speed Shared Control Channels.
    • 用于UMTS HSDPA共享控制信道处理的方法和系统的方面可以包括针对多个控制信道中的每一个在接收机处计算从至少一个维特比解码器状态度量导出的质量度量。 可以基于质量度量来选择控制信道,其中选择提供最大置信度的质量度量。 如果其对应的3GPP度量大于指定的阈值,则所选择的控制信道可以被选择,其中阈值是设计参数。 可以基于一致性和CRC来确定所选择的控制信道的有效性,其中可以从解码子帧导出CRC。 可以对于用于高速共享控制信道的子帧的第一时隙进行计算和选择。
    • 83. 发明申请
    • Method and System for Audio CODEC Voice ADC Processing
    • 音频CODEC语音ADC处理方法和系统
    • US20080129558A1
    • 2008-06-05
    • US11565591
    • 2006-11-30
    • Hongwei KongLi Fung Chang
    • Hongwei KongLi Fung Chang
    • H03M7/00H03M1/66
    • H03M3/496
    • Methods and systems for audio CODEC voice ADC processing are disclosed. Aspects of one method may include using a decimating filter that may be enabled to generate 13 MHz, 9-level digital output signal from a 26 MHz, 3-level digital input signal. The 13 MHz, 9-level digital output signal may be processed for RF transmission, for audio output to an output device, and/or utilized for testing by a test fixture, for example. The 13 MHz, 9-level digital output signal may be further processed to generate a 6.5 MHz, 33-level digital signal. The 6.5 MHz, 33-level digital signal may be converted to an analog signal, and processed for audio output and/or testing. The 13 MHz, 9-level digital output signal may also be processed to generate a 40 KHz, 17-bit digital signal, which may be communicated to a test equipment or further processed for RF transmission.
    • 公开了用于音频CODEC语音ADC处理的方法和系统。 一种方法的方面可以包括使用可被用于从26MHz 3级数字输入信号产生13MHz的9级数字输出信号的抽取滤波器。 13MHz,9电平数字输出信号可以被处理用于RF传输,用于音频输出到输出设备,和/或用于例如测试夹具的测试。 可以进一步处理13MHz,9电平数字输出信号,以产生一个6.5MHz,33电平的数字信号。 6.5 MHz,33级数字信号可以转换为模拟信号,并进行音频输出和/或测试。 13MHz的9电平数字输出信号也可以被处理以产生40KHz的17位数字信号,该数字信号可传送到测试设备或进一步处理用于RF传输。
    • 84. 发明授权
    • Controlling gain during multipath multi-rate audio processing
    • 在多径多速率音频处理中控制增益
    • US08996148B2
    • 2015-03-31
    • US13111660
    • 2011-05-19
    • Hongwei KongNelson SollenbergerLi Fung Chang
    • Hongwei KongNelson SollenbergerLi Fung Chang
    • G06F17/00H03G3/30H03G3/00
    • H03G3/3026H03G3/3089
    • Methods and systems for processing audio signals are disclosed herein. Aspects of the method may comprise controlling gain during multipath, multi-rate audio processing by generating a digital signal that is a product of an input digital signal and a gain coefficient derived from a lookup table, and coarse tuning the gain by bit-shifting the digital signal to generate a digital output signal. The gain may be fine-tuned utilizing a variable step size determined by interpolation. The gain coefficient may be partitioned into gain blocks, which may be twice a corresponding value in preceding gain blocks. The gain blocks may be partitioned into steps that represent particular gain values within a range associated with the gain block. The digital output signal may be ramped utilizing a linear interpolation of the gain coefficients over a number of samples of the input signal, where the number of samples is given as a power of two.
    • 本文公开了用于处理音频信号的方法和系统。 方法的方面可以包括通过产生作为输入数字信号和从查找表导出的增益系数的乘积的数字信号来控制多路径,多速率音频处理中的增益,以及通过位移 数字信号产生数字输出信号。 可以利用通过插值确定的可变步长来微调增益。 增益系数可以被划分为增益块,其可以是先前增益块中相应值的两倍。 增益块可以被划分为在与增益块相关联的范围内表示特定增益值的步骤。 数字输出信号可以通过输入信号的多个样本的增益系数的线性内插来斜坡,其中样本数量被给出为2的幂。
    • 86. 发明授权
    • Method and system for delay locked loop for rake receiver
    • 用于耙式接收机的延迟锁定环路的方法和系统
    • US08526556B2
    • 2013-09-03
    • US13614642
    • 2012-09-13
    • Hongwei KongLi Fung ChangHuaiyu Zeng
    • Hongwei KongLi Fung ChangHuaiyu Zeng
    • H04L7/00
    • H04B1/7085H04B7/0669H04B2201/70701
    • Certain aspects of a method and system for a delay locked loop for a rake receiver are disclosed. Aspects of one method may include normalizing a signal power of a first control channel based on a threshold value. A sampling time associated with at least one or more of the following: the first control channel, a second control channel, an on-time control channel, and a data channel, may be adjusted based on a comparison between the normalized signal power of the first control channel and a signal power of the second control channel. The second control channel may be delayed with respect to the first control channel by a particular time period. The first and second control channels may be common pilot control channels (CPICHs). The combined signal power of the first control channel may be normalized based on said threshold value.
    • 公开了用于耙式接收机的延迟锁定环路的方法和系统的某些方面。 一种方法的方面可以包括基于阈值来归一化第一控制信道的信号功率。 与第一控制信道,第二控制信道,接通时间控制信道和数据信道中的至少一个或多个相关联的采样时间可以基于 第一控制信道和第二控制信道的信号功率。 第二控制信道可以相对于第一控制信道延迟特定的时间段。 第一和第二控制信道可以是公共的导频控制信道(CPICH)。 可以基于所述阈值对第一控制信道的组合信号功率进行归一化。
    • 89. 发明授权
    • Method and system for audio CODEC voice ADC processing
    • 音频CODEC语音ADC处理方法和系统
    • US08169344B2
    • 2012-05-01
    • US13096290
    • 2011-04-28
    • Hongwei KongLi Fung Chang
    • Hongwei KongLi Fung Chang
    • H03M5/02
    • H03M3/496
    • Methods and systems for audio CODEC voice ADC processing are disclosed. Aspects of one method may include using a decimating filter that may be enabled to generate 13 MHz, 9-level digital output signal from a 26 MHz, 3-level digital input signal. The 13 MHz, 9-level digital output signal may be processed for RF transmission, for audio output to an output device, and/or utilized for testing by a test fixture, for example. The 13 MHz, 9-level digital output signal may be further processed to generate a 6.5 MHz, 33-level digital signal. The 6.5 MHz, 33-level digital signal may be converted to an analog signal, and processed for audio output and/or testing. The 13 MHz, 9-level digital output signal may also be processed to generate a 40 KHz, 17-bit digital signal, which may be communicated to a test equipment or further processed for RF transmission.
    • 公开了用于音频CODEC语音ADC处理的方法和系统。 一种方法的方面可以包括使用可被用于从26MHz 3级数字输入信号产生13MHz的9级数字输出信号的抽取滤波器。 13MHz,9电平数字输出信号可以被处理用于RF传输,用于音频输出到输出设备,和/或用于例如测试夹具的测试。 可以进一步处理13MHz,9电平数字输出信号,以产生一个6.5MHz,33电平的数字信号。 6.5 MHz,33级数字信号可以转换为模拟信号,并进行音频输出和/或测试。 13MHz的9电平数字输出信号也可以被处理以产生40KHz的17位数字信号,该数字信号可传送到测试设备或进一步处理用于RF传输。
    • 90. 发明授权
    • Wireless terminal baseband processor high speed turbo decoding module
    • 无线终端基带处理器高速turbo解码模块
    • US08145178B2
    • 2012-03-27
    • US13036322
    • 2011-02-28
    • Mark David HahmLi Fung Chang
    • Mark David HahmLi Fung Chang
    • H04B1/26
    • H03M13/658H03M13/09H03M13/1102H03M13/23H03M13/2975H03M13/3922H03M13/6306H03M13/6362H04L1/0051H04L1/0054H04L1/0066H04L1/1819H04L1/1845
    • A baseband processing module for use within a Radio Frequency (RF) transceiver includes a downlink/uplink interface, TX processing components, a processor, memory, RX processing components, and a turbo decoding module. The RX processing components receive a baseband RX signal from the RF front end, produce a set of IR samples from the baseband RX signal, and transfer the set of IR samples to the memory. The turbo decoding module receives a set of IR samples from the memory, forms a turbo code word from the set of IR samples, turbo decodes the turbo code word to produce inbound data, and outputs the inbound data to the downlink/uplink interface. The turbo decoding module performs metric normalization based upon a chosen metric, performs de-rate matching on the set of IR samples, performs error detection operations, and extracts information from a MAC packet that it produces.
    • 用于射频(RF)收发器的基带处理模块包括下行链路/上行链路接口,TX处理组件,处理器,存储器,RX处理组件和turbo解码模块。 RX处理组件从RF前端接收基带RX信号,从基带RX信号产生一组IR样本,并将该组IR样本传送到存储器。 turbo解码模块从存储器接收一组IR样本,从该IR样本组中形成turbo码字,对turbo码字进行turbo解码以产生入站数据,并将入站数据输出到下行链路/上行链路接口。 turbo解码模块基于所选择的度量来执行度量标准化,对所述IR样本集执行去速率匹配,执行错误检测操作,以及从其产生的MAC分组中提取信息。