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1. 发明申请

US20140146933A1 CIRCUIT FOR SPREAD SPECTRUM TRANSMISSION AND METHOD THEREOF 有权
标题翻译：用于传播频谱传输的电路及其方法
公开(公告)号：US20140146933A1
公开(公告)日：2014-05-29
申请号：US13927920
申请日：2013-06-26
申请人： NATIONAL TAIWAN UNIVERSITY
发明人： Tai-Cheng Lee , Chien-Heng Wong
IPC分类号： H04L7/033
CPC分类号： H04L7/0331 , H04B1/7087
摘要： A spread spectrum transmission circuit includes a phase locked loop composed of a filter. The phase locked loop generates a series of incremental control signals and decreasing control signals based on the frequency difference and phase difference between a reference clock signal and a feedback signal. The circuit further has a frequency locked loop an amplitude locked loop, a digital-analog converter, an injection current source, an extraction current source, a multiplexer is connected to the locked phase loop and a rail-to-rail digital signal generator having an input connected to the multiplexer and an output connected to inputs of the locked frequency loop and the locked amplitude loop.
摘要翻译：扩频发送电路包括由滤波器构成的锁相环。锁相环基于参考时钟信号和反馈信号之间的频率差和相位差产生一系列增量控制信号和减小控制信号。电路还具有锁频环路，振幅锁定环路，数模转换器，注入电流源，提取电流源，多路复用器连接到锁相位环路，轨至轨数字信号发生器具有连接到多路复用器的输入和连接到锁定频率环路和锁定振幅环路的输入端的输出。

2. 发明授权

US09685970B1 Analog-to-digital converting system and converting method 有权
公开(公告)号：US09685970B1
公开(公告)日：2017-06-20
申请号：US15223484
申请日：2016-07-29
申请人： National Taiwan University , Media Tek Inc.
发明人： Tai-Cheng Lee , Chin-Yu Lin , Yen-Hsin Wei
IPC分类号： H03M1/10 , H03M1/12 , H03M1/00
CPC分类号： H03M1/1009 , H03M1/00 , H03M1/1033 , H03M1/12 , H03M1/1215 , H03M1/1245
摘要： An analog-to-digital converting system includes at least one first main analog-to-digital converting unit, at least one second main analog-to-digital converting unit, at least one auxiliary analog-to-digital converting unit, and a calibration unit. Each first main analog-to-digital converting unit is located on a first channel. The first channel includes sample period. Each first main analog-to-digital converting unit receives a first sampling value. Each first sampling value includes a first sample clock. An analog-to-digital converting method calibrates timing-skew of the analog-to-digital converters by delaying a time difference on the sampling value.

3. 发明授权

US08787424B2 Circuit for spread spectrum transmission and method thereof 有权
标题翻译：扩频传输电路及其方法
公开(公告)号：US08787424B2
公开(公告)日：2014-07-22
申请号：US13927920
申请日：2013-06-26
申请人： National Taiwan University
发明人： Tai-Cheng Lee , Chien-Heng Wong
IPC分类号： H04B1/00 , H04L7/033
CPC分类号： H04L7/0331 , H04B1/7087
摘要： A spread spectrum transmission circuit includes a phase locked loop composed of a filter. The phase locked loop generates a series of incremental control signals and decreasing control signals based on the frequency difference and phase difference between a reference clock signal and a feedback signal. The circuit further has a frequency locked loop an amplitude locked loop, a digital-analog converter, an injection current source, an extraction current source, a multiplexer is connected to the locked phase loop and a rail-to-rail digital signal generator having an input connected to the multiplexer and an output connected to inputs of the locked frequency loop and the locked amplitude loop.
摘要翻译：扩频发送电路包括由滤波器构成的锁相环。锁相环基于参考时钟信号和反馈信号之间的频率差和相位差产生一系列增量控制信号和减小控制信号。电路还具有锁频环路，振幅锁定环路，数模转换器，注入电流源，提取电流源，多路复用器连接到锁相位环路，轨至轨数字信号发生器具有连接到多路复用器的输入和连接到锁定频率环路和锁定振幅环路的输入端的输出。

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