公开(公告)号：US08457227B2

公开(公告)日：2013-06-04

申请号：US13334928

申请日：2011-12-22

Applicant: Che-Li Lin

Inventor： Che-Li Lin

IPC: H04B1/10

CPC classification number: H04L27/2647 ,  H04B17/318 ,  H04L1/0041 ,  H04L1/0053 ,  H04L1/201 ,  H04L25/0204 ,  H04L25/03006

Abstract: A method for dynamically adjusting the power consumption of a multi-carrier receiver and a multi-carrier receiver with dynamically power adjustment. The method includes receiving a multi-carrier signal, wherein the multi-carrier signal comprises a plurality of sub-carriers. Channel characteristics of each sub-carrier are estimated according to the demodulated multi-carrier signal. ICI is estimated from the demodulated multi-carrier signal. A system performance is detected. The estimated ICI is subtracted when the ICI exceeds an ICI threshold and the system performance is less than a system performance threshold. The demodulated multi-carrier signal is then equalized is based on the estimated channel characteristics, and the system performance is updated according to the equalized multi-carrier signal.

Abstract translation: 一种动态调整多载波接收机和多载波接收机的功耗的方法。 该方法包括接收多载波信号，其中多载波信号包括多个子载波。 根据解调的多载波信号来估计每个子载波的信道特性。 从解调的多载波信号估计ICI。 检测到系统性能。 当ICI超过ICI阈值并且系统性能小于系统性能阈值时，减去估计的ICI。 然后，解调的多载波信号基于估计的信道特性进行均衡，并且根据均衡的多载波信号来更新系统性能。

公开(公告)号：US07792221B2

公开(公告)日：2010-09-07

申请号：US11306865

申请日：2006-01-13

Applicant: Che-Li Lin

Inventor： Che-Li Lin

IPC: H03D1/00

CPC classification number: H04N5/4401 ,  H04B7/0837 ,  H04L1/0036 ,  H04L1/06 ,  H04L2001/0096 ,  H04N21/426 ,  H04N21/4305 ,  H04N21/4382 ,  H04N21/44209 ,  H04N21/4622

Abstract: A method of generating a smoothed transport stream to an MPEG decoder for a diversity combine digital television receiver includes generating a plurality of synchronization clocks and demodulated signals according to a plurality of digital television signals received from a plurality of antennas; monitoring a signal quality associated with each of the digital television signals; combining at least demodulated signals having a signal quality being greater than a predetermined threshold to thereby form a combined signal; generating transport stream packets according to the combined signal; selecting a synchronization signal corresponding to a digital television signal having a signal quality being greater than a second predetermined threshold as a selected synchronization signal; and generating a smoothed transport stream having packets being uniformly spaced according to the transport stream packets and the selected synchronization signal.

Abstract translation: 一种为分集组合数字电视接收机生成MPEG解码器的平滑传输流的方法包括根据从多个天线接收的多个数字电视信号产生多个同步时钟和解调信号; 监视与每个数字电视信号相关联的信号质量; 至少组合信号质量大于预定阈值的解调信号，从而形成组合信号; 根据组合信号生成传输流分组; 选择与具有大于第二预定阈值的信号质量的数字电视信号相对应的同步信号作为选择的同步信号; 以及产生具有根据传输流分组和所选同步信号均匀间隔的分组的平滑传输流。

公开(公告)号：US20100205515A1

公开(公告)日：2010-08-12

申请号：US12368182

申请日：2009-02-09

Applicant: Shun-An Yang ,  Che-Li Lin

Inventor： Shun-An Yang ,  Che-Li Lin

IPC: G06F11/07 ,  H03M13/09

CPC classification number: H03M13/3738 ,  H03M13/1165 ,  H03M13/15 ,  H03M13/152 ,  H03M13/2906 ,  H04H60/11 ,  H04L1/0057 ,  H04L1/0065 ,  H04L2001/0093

Abstract: A signal processing apparatus is provided. The signal processing apparatus includes an inner-code decoder, an outer-code decoder, and an error detection unit. The inner-code decoder decodes an input data stream to generate a first output data stream, wherein the input data stream is coded using a concatenated coding scheme including an outer coding and an inner coding. The outer-code decoder decodes the first output data stream to generate a second output data stream. The error detection unit performs an error detection upon the second output data stream to generate an error detection result. The decision logic sets error indication information of the second output data stream according to at least the error detection result.

Abstract translation: 提供一种信号处理装置。 信号处理装置包括内码解码器，外码解码器和错误检测单元。 内码解码器解码输入数据流以产生第一输出数据流，其中使用包括外部编码和内部编码的级联编码方案对输入数据流进行编码。 外码解码器解码第一输出数据流以产生第二输出数据流。 错误检测单元对第二输出数据流执行错误检测以产生错误检测结果。 决定逻辑至少根据错误检测结果来设定第二输出数据流的错误指示信息。

公开(公告)号：US20100135444A1

公开(公告)日：2010-06-03

申请号：US12699115

申请日：2010-02-03

Applicant: Che-Li Lin

Inventor： Che-Li Lin

IPC: H04B1/10

CPC classification number: H04L27/2647 ,  H04B17/318 ,  H04L1/0041 ,  H04L1/0053 ,  H04L1/201 ,  H04L25/0204 ,  H04L25/03006

Abstract: A method for dynamically adjusting the power consumption of a multi-carrier receiver and a multi-carrier receiver with dynamically power adjustment. The method includes receiving a multi-carrier signal, wherein the multi-carrier signal comprises a plurality of sub-carriers. Channel characteristics of each sub-carrier are estimated according to the demodulated multi-carrier signal. ICI strength is estimated from the demodulated multi-carrier signal. A system performance is detected. The estimated ICI is subtracted when the ICI strength exceeds an ICI threshold and the system performance is less than a system performance threshold. The demodulated multi-carrier signal is then equalized is based on the estimated channel characteristics, and the system performance is updated according to the equalized multi-carrier signal.

Abstract translation: 一种动态调整多载波接收机和多载波接收机的功耗的方法。 该方法包括接收多载波信号，其中多载波信号包括多个子载波。 根据解调的多载波信号来估计每个子载波的信道特性。 从解调的多载波信号估计ICI强度。 检测到系统性能。 当ICI强度超过ICI阈值并且系统性能小于系统性能阈值时，减去估计的ICI。 然后，解调的多载波信号基于估计的信道特性进行均衡，并且根据均衡的多载波信号来更新系统性能。

公开(公告)号：US20100026357A1

公开(公告)日：2010-02-04

申请号：US12344198

申请日：2008-12-24

Applicant: Cheng-Hsun Chan ,  Che-Li Lin

Inventor： Cheng-Hsun Chan ,  Che-Li Lin

IPC: H03K3/02

CPC classification number: H03K17/22 ,  H03K5/1252

Abstract: A reset signal filter includes a power voltage detector and a reset signal detector or includes only one reset signal detector. The power voltage detector includes a comparators and a basic logic gates (e.g. AND gate, OR gate, inverter, etc). The reset signal detector includes a comparator, N flip flops connected in series, an AND gate, an OR gate, a multiplexer and an output flip flop. The reset signal filter receives a first reset signal generated by a power voltage detector or a Schmitt trigger buffer and utilizes N flip flops to register the signal level of the first reset signal for N clock periods. Then the reset signal filter determines if the first rest signal is changed during N clock periods, and outputs a second reset signal.

Abstract translation: 复位信号滤波器包括电源电压检测器和复位信号检测器，或仅包括一个复位信号检测器。 电源电压检测器包括比较器和基本逻辑门（例如，与门，或门，反相器等）。 复位信号检测器包括比较器，串联连接的N个触发器，与门，或门，复用器和输出触发器。 复位信号滤波器接收由电源电压检测器或施密特触发缓冲器产生的第一复位信号，并利用N个触发器在N个时钟周期内对第一复位信号的信号电平进行寄存。 然后，复位信号滤波器确定在N个时钟周期期间是否改变第一个静止信号，并输出第二个复位信号。

公开(公告)号：US07564378B2

公开(公告)日：2009-07-21

申请号：US12122737

申请日：2008-05-19

Applicant: Wen-Yuan Tsao ,  Che-Li Lin

Inventor： Wen-Yuan Tsao ,  Che-Li Lin

IPC: H03M7/34 ,  H03M7/38

CPC classification number: H03M5/14

Abstract: A data encoding and decoding method capable of lowering signal power spectral density for a binary data transmission system is disclosed. The data encoding method includes receiving binary data, performing adaptive mode tracking encoding for the binary data to generate a first encoding result, performing bit stuffing encoding for the first encoding result to generate a second encoding result, performing bit stationary state resuming encoding for the second encoding result to generate a third encoding result, and outputting the third encoding result.

Abstract translation: 公开了能够降低二进制数据传输系统的信号功率谱密度的数据编码和解码方法。 数据编码方法包括接收二进制数据，对二进制数据执行自适应模式跟踪编码以产生第一编码结果，对第一编码结果执行比特填充编码以产生第二编码结果，对第二编码结果执行比特固定状态恢复编码 编码结果以产生第三编码结果，并输出第三编码结果。

公开(公告)号：US20090074042A1

公开(公告)日：2009-03-19

申请号：US11856065

申请日：2007-09-17

Applicant: Che-Li Lin

Inventor： Che-Li Lin

IPC: H04B17/00

CPC classification number: H04L27/2647 ,  H03G3/3078 ,  H03G3/3089 ,  H04L27/2614

Abstract: A scaling apparatus set in a receiver is disclosed. The receiver includes a symbol-processing unit. The scaling apparatus includes a calculating unit and a scaling unit. The calculating unit estimates the signal strength of an input symbol and generates a scaling factor accordingly. The scaling unit scales an output symbol outputted from the symbol-processing unit according to the scaling factor. The output symbol is generated from the symbol-processing unit through processing the input symbol.

Abstract translation: 公开了一种设置在接收机中的缩放装置。 接收机包括符号处理单元。 缩放装置包括计算单元和缩放单元。 计算单元估计输入符号的信号强度并相应地生成缩放因子。 缩放单元根据缩放因子缩放从符号处理单元输出的输出符号。 通过处理输入符号从符号处理单元生成输出符号。

公开(公告)号：US20080175328A1

公开(公告)日：2008-07-24

申请号：US11625859

申请日：2007-01-23

Applicant: Che-Li Lin ,  Shun-An Yang

Inventor： Che-Li Lin ,  Shun-An Yang

IPC: H04L23/02 ,  H03K5/159

CPC classification number: H04L25/022 ,  H04L5/0048 ,  H04L25/0232 ,  H04L2025/03414

Abstract: A multi-path receiving system is provided. The multi-path receiving system includes a multi-path analyzer, a channel estimator and an equalizer. The multi-path analyzer analyzes a channel impulse response (CIR) of the multi-path channel from the received stream. The channel estimator calculates a channel estimation result from the received stream. The channel estimator comprises a frequency domain interpolation filter performing channel estimation. The frequency domain interpolation filter consumes an amount of power according to the CIR result output from the multi-path analyzer. The equalizer equalizes the received stream based on the channel estimation result.

Abstract translation: 提供多路径接收系统。 多路径接收系统包括多径分析器，信道估计器和均衡器。 多路径分析器从接收的流分析多路径信道的信道脉冲响应（CIR）。 信道估计器从接收的流计算信道估计结果。 信道估计器包括执行信道估计的频域内插滤波器。 频域插值滤波器根据多径分析仪输出的CIR结果消耗一定的功率。 均衡器基于信道估计结果对接收的流进行均衡。

公开(公告)号：US07283578B2

公开(公告)日：2007-10-16

申请号：US10377453

申请日：2003-02-28

Applicant: Che-Li Lin ,  Sheng-Jie Chen

Inventor： Che-Li Lin ,  Sheng-Jie Chen

IPC: H04B1/69 ,  H04B1/707 ,  H04B1/713

CPC classification number: H04B1/70755 ,  H04B1/7113 ,  H04B1/7115 ,  H04B1/7117 ,  H04B1/712

Abstract: This present invention is a system and method to adjust a searcher threshold parameter of a RAKE receiver. The adjusting system includes a searcher, a power estimator, and a parameter control apparatus. When the searcher finds and acquires a new path signal, the power estimator will estimate the power of the new path signal and that of the other path signals. The parameter control apparatus will calculate and monitor the power ratio corresponding to the new path signal. If the power ratio remains smaller than a predetermined power ratio parameter for a first predetermined times, the parameter control apparatus will increase the value of the threshold parameter. If the power ratio remains unchanged for a second predetermined times, the parameter control apparatus will lower the value of the threshold parameter. After that, the searcher will acquire the path signals among the multipath signal being searched in accordance with the adjusted threshold parameter. With this adjusted threshold parameter, the present invention can improve the sensitivity of the searcher, acquire the correct path signals in various environments, and provide the correct position of the path signal to the RAKE receiver.

Abstract translation: 本发明是一种调整RAKE接收机的搜索者阈值参数的系统和方法。 调整系统包括搜索器，功率估计器和参数控制装置。 当搜索者发现并获取新的路径信号时，功率估计器将估计新路径信号的功率和其他路径信号的功率。 参数控制装置将计算并监视与新路径信号对应的功率比。 如果第一预定次数的功率比保持小于预定功率比参数，则参数控制装置将增加阈值参数的值。 如果功率比在第二预定时间内保持不变，则参数控制装置将降低阈值参数的值。 之后，搜索器将根据调整后的阈值参数获得被搜索的多径信号之间的路径信号。 利用该调整后的阈值参数，本发明可以提高搜索者的灵敏度，在各种环境中获取正确的路径信号，并将路径信号的正确位置提供给RAKE接收机。

公开(公告)号：US07254163B2

公开(公告)日：2007-08-07

申请号：US10707663

申请日：2003-12-31

Applicant: Sheng-Jie Chen ,  Che-Li Lin

Inventor： Sheng-Jie Chen ,  Che-Li Lin

IPC: H04B1/00 ,  H04J3/06

CPC classification number: H04B1/70775 ,  H04B1/70735 ,  H04B1/7083 ,  H04B1/709

Abstract: A method for performing frame synchronization in a WCDMA system includes first, correlating a received signal with a plurality of predetermined correlators to obtain a plurality of frame synchronization correlation results, then, coherently combining frame synchronization correlation results with a slot synchronization phase when a test phase difference is less than a threshold phase difference, or, coherently combining frame synchronization correlation results with a linear combination of slot synchronization phases when the test phase difference is greater than or equal to the threshold phase difference. The slot synchronization phase is determined by correlating the received signal with a slot synchronization sequence. Lastly, the method determines a frame boundary of the received signal based on the coherent combination results. The method accommodates for a changing signal to noise ratio to improve frame synchronization speed and accuracy.

Abstract translation: 一种用于在WCDMA系统中执行帧同步的方法包括首先将接收信号与多个预定相关器相关联以获得多个帧同步相关结果，然后在测试阶段相干地将帧同步相关结果与时隙同步相结合 差值小于阈值相位差，或者当测试相位差大于或等于阈值相位差时，将帧同步相关结果与时隙同步相位的线性组合相干组合。 通过将接收的信号与时隙同步序列相关联来确定时隙同步相位。 最后，该方法基于相干组合结果确定接收信号的帧边界。 该方法适应变化的信噪比，从而提高帧同步速度和精度。