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1. 发明申请

US20110076952A1 ARBITRARY FREQUENCY SHIFTER IN COMMUNICATION SYSTEMS 有权
标题翻译：通信系统中的仲裁频率变换器
公开(公告)号：US20110076952A1
公开(公告)日：2011-03-31
申请号：US12569290
申请日：2009-09-29
申请人： Jeng-Hong CHEN
发明人： Jeng-Hong CHEN
IPC分类号： H04B7/00
CPC分类号： G06F1/022 , G06F1/0342
摘要： This invention describes a programmable, digital implementation to shift an arbitrary frequency, or various frequencies in various communication systems of the original signal in the frequency domain. The correspondent phase accumulation to perform the desired frequency shift per sampling instant is perfectly tracked by counting up or down a simple integer. Several arbitrary frequency shifters with different mathematical models are provided. The correspondent implementations with Look-Up-Tables (LUT) are derived for high-speed implementations without further calculations of the values of the sine and cosine functions every sampling instant. Furthermore, a simple shift-and-add phase rotation is described to replace the four required real multiplications. If the original complex signal contains only one-bit each from real part and imaginary part, a surprisingly simple implementation is derived and disclosed for the overall arbitrary frequency shift operation. Further simplifications are also disclosed to make this invention feasible for high sampling frequencies and small frequency drifts.
摘要翻译：本发明描述了一种可编程的数字实现，以在频域中移动原始信号的各种通信系统中的任意频率或各种频率。通过向上或向下计数一个简单的整数来完美地跟踪每个采样时刻执行所需频移的通讯相位累加。提供了具有不同数学模型的几个任意频率移位器。具有查找表（LUT）的通信实现被导出用于高速实现，而不需要在每个采样时刻进一步计算正弦和余弦函数的值。此外，描述了简单的移位和加法相位旋转来代替四个所需的实数乘法。如果原始复信号仅包含来自实部和虚部的一位，则导出并公开了用于总体任意频移操作的令人惊讶的简单实现。还公开了进一步简化以使本发明对于高采样频率和小的频率漂移是可行的。

2. 发明申请

US20130336371A1 FAST AND ROBUST AGC APPARATUS AND METHOD USING THE SAME 有权
标题翻译：快速和稳定的AGC装置和使用该装置的方法
公开(公告)号：US20130336371A1
公开(公告)日：2013-12-19
申请号：US13517729
申请日：2012-06-14
申请人： Jeng-Hong CHEN , Huei-Ming Yang , Chih-Ching Huang
发明人： Jeng-Hong CHEN , Huei-Ming Yang , Chih-Ching Huang
IPC分类号： H04L27/08 , H04B1/38
CPC分类号： H03G3/3068 , H03G3/3078
摘要： The present invention discloses apparatus and method for fast and robust automatic gain control (AGC). By using the power statistics and/or the amplitude statistics of multiple pairs of signed ADC outputs, the additional gain control can be determined and included in a statistics-aided AGC to successfully complete the AGC function for a received signal having a dynamic range up to 100 dB within a few micro-seconds.
摘要翻译：本发明公开了用于快速且鲁棒的自动增益控制（AGC）的装置和方法。通过使用多对有符号ADC输出的功率统计和/或振幅统计，可以确定附加增益控制并将其包含在统计辅助AGC中，以成功完成具有动态范围的接收信号的AGC功能，在几微秒内100 dB。

3. 发明申请

US20120155035A1 DISPLAY DEVICE 审中-公开
标题翻译：显示设备
公开(公告)号：US20120155035A1
公开(公告)日：2012-06-21
申请号：US13329343
申请日：2011-12-19
申请人： Jeng-Hong CHEN , Te-Sen CHIN
发明人： Jeng-Hong CHEN , Te-Sen CHIN
IPC分类号： H05K7/00
CPC分类号： H04M1/185 , G06F1/1626 , G06F1/1637 , H04M1/0266
摘要： A display device includes a display module, an outer housing, a glass cover and a strength-enhanced member. The display module is installed within the outer housing, and the outer housing has a support portion. The glass cover is attached to the support portion. The strength-enhanced member is located within the outer housing, and the strength-enhanced member is disposed closer to a corresponding corner of the outer housing than a corresponding corner of the glass cover is.
摘要翻译：显示装置包括显示模块，外壳，玻璃盖和强度增强构件。显示模块安装在外壳内，外壳具有支撑部分。玻璃盖附接到支撑部分。增强强度的构件位于外壳内，并且强度增强构件设置成比玻璃罩的相应角更靠近外壳的相应角部。

4. 发明申请

US20120288043A1 ADAPTIVE WIRELESS COMMUNICATION RECEIVER 有权
标题翻译：自适应无线通信接收器
公开(公告)号：US20120288043A1
公开(公告)日：2012-11-15
申请号：US13466884
申请日：2012-05-08
申请人： Jeng-Hong CHEN , Peng-Sen Chen , Hsiang-Te Ho , Kuang-Hu Huang , Zhi-Qing Huang , Chin-Chang Chang
发明人： Jeng-Hong CHEN , Peng-Sen Chen , Hsiang-Te Ho , Kuang-Hu Huang , Zhi-Qing Huang , Chin-Chang Chang
IPC分类号： H04L27/08
CPC分类号： H04B1/109 , H04B2001/1045
摘要： The present invention relates to an adaptive, cost-performance efficient, power-saving apparatus for wireless communication systems, such as but not limited to Bluetooth (BT) receivers, and in particular to a packet-based receiver's decoding algorithm which can detect the presence or absence of the adjacent channel interference (ACI) before the scheduled starting time for receiving a Bluetooth packet, and accordingly set the receiver configurations including the filter's pass-band bandwidth (BW), filter's order, the sampling rate, the number of analog-to-digital-converter (ADC) output bits, and the automatic-gain-control (AGC) algorithm unit to determine the low noise amplifier (LNA) and variable gain amplifier (VGA) settings.
摘要翻译：本发明涉及用于诸如但不限于蓝牙（BT）接收机的无线通信系统的自适应的，性价比高的节能设备，特别涉及一种基于分组的接收机的解码算法，其可以检测存在或者在用于接收蓝牙分组的预定开始时间之前不存在相邻信道干扰（ACI），并且相应地设置包括滤波器的通带带宽（BW），滤波器顺序，采样率，模拟 - 数字转换器（ADC）输出位和自动增益控制（AGC）算法单元来确定低噪声放大器（LNA）和可变增益放大器（VGA）设置。

5. 发明申请

US20110188614A1 SIMPLIFIED ACQUISITION APPARATUS AND METHOD FOR A BLUETOOTH RECEIVER 有权
标题翻译：简化的采集设备和蓝牙接收机的方法
公开(公告)号：US20110188614A1
公开(公告)日：2011-08-04
申请号：US12700623
申请日：2010-02-04
申请人： Jeng-Hong CHEN , Pansop Kim , Hsin-Hsiang Liu , Hsin-Hsu Chi
发明人： Jeng-Hong CHEN , Pansop Kim , Hsin-Hsiang Liu , Hsin-Hsu Chi
IPC分类号： H04L27/22 , H04L27/06
CPC分类号： H04L27/06 , H04L27/22
摘要： An acquisition scheme for receiving a Bluetooth basic data rate (BDR) or enhanced data rate (EDR) packet. A simplified acquisition apparatus for a Bluetooth receiver having a phase differentiator, a plurality of basic building blocks, a plurality of 1-bit switch, and a correlation computation equation. It features a simplified acquisition circuit implementation with a 1-bit correlator hardware shared by access code and EDR synchronization sequence correlation computations. A 4 MHz sampling rate is used for correlation computation. A SINC interpolator is then used to get an 8 or 16 MHz timing resolution for data bit decoding. Based on the measurement results, this simple acquisition scheme can support successful decoding of a received Bluetooth packet with a maximum timing offset of +/−40 ppm and a maximum frequency offset of +/−60 ppm without loss of receiver sensitivity.
摘要翻译：用于接收蓝牙基本数据速率（BDR）或增强数据速率（EDR）分组的获取方案。一种用于具有相位微分器，多个基本构建块，多个1位开关和相关计算方程的蓝牙接收器的简化采集装置。它具有简化的采集电路实现，具有由访问代码和EDR同步序列相关计算共享的1位相关器硬件。 4 MHz采样率用于相关计算。然后使用SINC内插器获得用于数据位解码的8或16MHz定时分辨率。基于测量结果，这种简单的采集方案可以支持接收到的蓝牙分组的成功解码，其最大定时偏移为+/- 40ppm，最大频偏为+/- 60ppm，而不损失接收机灵敏度。

6. 发明申请

US20090225727A1 GENERATING METHOD FOR SHORT TRAINING FIELD IN IEEE 802.11N COMMUNICATION SYSTEMS 有权
标题翻译： IEEE 802.11N通信系统中短期培训的生成方法
公开(公告)号：US20090225727A1
公开(公告)日：2009-09-10
申请号：US12043722
申请日：2008-03-06
申请人： Jeng-Hong CHEN
发明人： Jeng-Hong CHEN
IPC分类号： H04B7/212
CPC分类号： H04W28/06 , H04W84/12
摘要： The present invention discloses a generating method for short training field in IEEE 802.11n communication systems, mainly comprising the steps of: storing only a first set of time-domain HT-STF sequences in the memory; and deriving a second set of the time-domain HT-STF sequences from the first set of the time-domain HT-STF sequences. The first set of time-domain HT-STF sequences is the time-domain HT-STF sequences either for lower 20 MHz of 40 MHz BW or upper 20 MHz of 40 MHz BW. According to the invention, it is shown that only one set of time-domain HT-STF sequence needs to be stored in the memory. The other three sets of time-domain HT-STF sequence can be generated easily from simple calculation. Therefore, the saving in buffer size to implement all four configurations is significant.
摘要翻译：本发明公开了一种IEEE 802.11n通信系统中短训练场的生成方法，主要包括以下步骤：在存储器中仅存储第一组时域HT-STF序列; 以及从第一组时域HT-STF序列导出第二组时域HT-STF序列。第一组时域HT-STF序列是用于40MHz BW的较低20MHz或40MHz BW的高于20MHz的时域HT-STF序列。根据本发明，显示只有一组时域HT-STF序列需要存储在存储器中。其他三组时域HT-STF序列可以从简单的计算中轻松生成。因此，实现所有四种配置的缓冲区大小的节省是很重要的。

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