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    • 3. 发明授权
    • Clock generating apparatus and method thereof
    • 时钟发生装置及其方法
    • US06463013B1
    • 2002-10-08
    • US09631293
    • 2000-08-02
    • Kuo-Ping LiuJiin LaiJyh-fong LinYu-Wei Lin
    • Kuo-Ping LiuJiin LaiJyh-fong LinYu-Wei Lin
    • G04F500
    • H03L7/199G06F1/06H03L7/07H03L7/23
    • A clock generating apparatus and method for generating clock signals of different frequency. The clock generating apparatus and method receives and divides a main clock signal to obtain a reference clock signal. Then, the reference clock signal and the first feedback clock signal are phase-locked to obtain the first clock signal. Moreover, the reference clock signal and the second feedback clock signal are phase-locked to obtain the second clock signal. The reset signal and the first clock signal are received by a divider. The divider then outputs the first feedback clock signal. Another divider receives the reset signal and the second clock signal and then outputs the second feedback clock signal.
    • 一种用于产生不同频率的时钟信号的时钟产生装置和方法。 时钟发生装置和方法接收和分割主时钟信号以获得参考时钟信号。 然后,参考时钟信号和第一反馈时钟信号被锁相以获得第一时钟信号。 此外,参考时钟信号和第二反馈时钟信号被锁相以获得第二时钟信号。 复位信号和第一时钟信号由分频器接收。 然后分频器输出第一反馈时钟信号。 另一分频器接收复位信号和第二时钟信号,然后输出第二反馈时钟信号。
    • 4. 发明授权
    • Multi-mode and multi-band RF transceiver and related communications method
    • 多模和多频RF收发器及相关通讯方式
    • US07424271B2
    • 2008-09-09
    • US10904895
    • 2004-12-02
    • Did-Min ShihJyh-Fong Lin
    • Did-Min ShihJyh-Fong Lin
    • H04B1/40
    • H04B1/005H01Q1/242H04B1/406
    • A multimode communications system includes a first communications module, a transmission module, a switch and a second communications module. The first communication module has a frequency modulator for modulating a dividing ratio to adjust an oscillating signal and selectively enabling the oscillating signal to have its frequency change with a variety of contents of a first communications signal by modulating the dividing ratio according to the contents of the first communications signal on a modulating mode or enabling the oscillating signal to have its frequency constant by keeping the dividing ratio unchanged. The switch is to selectively transmit the oscillating signal either to the transmission module when the frequency modulator is operating on the modulating mode or to a receiving end when the frequency modulator is operating on the constant frequency mode.
    • 多模式通信系统包括第一通信模块,传输模块,交换机和第二通信模块。 第一通信模块具有用于调制分频比以调整振荡信号的频率调制器,并且通过根据第一通信模块的内容调制分频比来选择性地使得振荡信号能够利用第一通信信号的各种内容来改变其频率 第一通信信号处于调制模式,或者使振荡信号通过保持分频比不变而使其频率恒定。 当频率调制器在调制模式下工作时,该开关用于选择性地将振荡信号发送到传输模块,或者当频率调制器在恒定频率模式下工作时,将该振荡信号选择性地发送到传输模块。
    • 5. 发明申请
    • Radio Frequency Transceiver
    • 射频收发器
    • US20080125060A1
    • 2008-05-29
    • US11428597
    • 2006-07-05
    • Jyh-Fong LinJung-Chang LiuPeir-Weir ChenYing-Che TsengDid-Min Shih
    • Jyh-Fong LinJung-Chang LiuPeir-Weir ChenYing-Che TsengDid-Min Shih
    • H04B1/00
    • H04B1/0082
    • A wireless communication device. The wireless communication device comprises first and second programmable frequency dividers, a mixer, a modulator, a phase detector, and a variable controlled oscillator. The first programmable frequency divider divides the frequency of a reference signal by a factor N to generate a modulating signal. The second programmable frequency divider divides the reference signal by a factor M and outputs a frequency-divided signal. The facts N and M are positive integers. The mixer down-converting a transmission signal according the divided signal and outputs a translation-loop signal. The modulator modulates the modulating signal with baseband signals, and outputs a comparison signal. The phase detector detects a phase difference between the comparison signal and the translation-loop signal. The variable controlled oscillator modifies the transmission signals according to an output of the phase detector.
    • 无线通信设备。 无线通信设备包括第一和第二可编程分频器,混频器,调制器,相位检测器和可变控制振荡器。 第一可编程分频器将参考信号的频率除以因子N以产生调制信号。 第二可编程分频器将参考信号除以因子M并输出分频信号。 事实N和M是正整数。 混频器根据分频信号对传输信号进行下变频转换,并输出平移环路信号。 调制器用基带信号调制调制信号,并输出比较信号。 相位检测器检测比较信号和平移环路信号之间的相位差。 可变控制振荡器根据相位检测器的输出修改发送信号。
    • 6. 发明申请
    • SIGNAL PROCESSING CIRCUIT FOR OPTICAL DISC DRIVERS AND THE RELATED METHOD
    • 光盘驱动器信号处理电路及相关方法
    • US20050157626A1
    • 2005-07-21
    • US10906541
    • 2005-02-24
    • Jyh-Fong LinYi-Bin HsiehChih-Chang Chien
    • Jyh-Fong LinYi-Bin HsiehChih-Chang Chien
    • G11B3/00G11B5/09G11B20/10
    • G11B20/10027G11B20/10009G11B20/10046G11B20/10314
    • A signal processing circuit for adjusting an input signal and generating a corresponding digital output signal in an optical disk driver is provided. The signal processing circuit includes an attenuator for receiving and attenuating the input signal and then generating an attenuated output signal; a gain controllable amplifier for receiving and amplifying the input signal and then generating an amplified output signal; a control unit providing a control signal and a select signal, the control signal is directed to the attenuator and the gain controllable amplifier for enabling/disabling the attenuator and the gain controllable amplifier and for controlling their gains such that one of the attenuator and gain controllable amplifier is enabled at a time; and a waveform adjuster circuit for adjusting the amplified/attenuated output signal delivered from the gain controllable amplifier or the attenuator so as to generate the digital signal related to the input signal.
    • 提供了一种用于在光盘驱动器中调整输入信号并产生相应的数字输出信号的信号处理电路。 信号处理电路包括:衰减器,用于接收和衰减输入信号,然后产生衰减的输出信号; 增益可控放大器,用于接收和放大输入信号,然后产生放大的输出信号; 提供控制信号和选择信号的控制单元,控制信号被引导到衰减器和增益可控放大器,用于使能/禁用衰减器和增益可控放大器并用于控制其增益,使得衰减器和增益中的一个可控 放大器一次启用; 以及用于调整从增益可控放大器或衰减器传送的放大/衰减的输出信号的波形调节器电路,以产生与输入信号有关的数字信号。
    • 7. 发明授权
    • Hysteresis comparing device with constant hysteresis width and the method thereof
    • 具有恒定滞后宽度的滞后比较装置及其方法
    • US06906568B2
    • 2005-06-14
    • US10610642
    • 2003-07-02
    • Jyh-fong LinCheng-Kuo Yang
    • Jyh-fong LinCheng-Kuo Yang
    • H03K3/037H03K17/693
    • H03K3/0377H03K17/693
    • A hysteresis comparing device with constant hysteresis width and the method thereof, which can respectively receive a first signal and a second signal and can output a digital signal. The hysteresis comparing device includes a threshold voltage generator, a multiplexer, and a next stage comparator. The threshold voltage generator is used to receive the first signal and output an upper threshold voltage and a lower threshold voltage. The multiplexer is used to receive the upper threshold voltage and the lower threshold voltage, and output a multiplexing signal according to the digital signal. The multiplexing signal is either the upper threshold voltage or the lower threshold voltage. The next stage comparator has one terminal used to receive the multiplexing signal, and another terminal used to receive the second signal. The next stage comparator outputs the digital signal. The hysteresis comparing device with constant hysteresis width can suppress the effect from the glitch. Also and, under the affection of the environment, a constant hysteresis width can still provided, so that the hysteresis, comparing device can judge the received signals with higher precision.
    • 具有恒定滞后宽度的滞后比较装置及其方法,其可以分别接收第一信号和第二信号并且可以输出数字信号。 滞后比较装置包括阈值电压发生器,多路复用器和下一级比较器。 阈值电压发生器用于接收第一信号并输出​​上阈值电压和较低阈值电压。 多路复用器用于接收上阈值电压和下阈值电压,并根据数字信号输出复用信号。 多路复用信号是上阈值电压或较低阈值电压。 下一级比较器具有用于接收复用信号的一个端子,以及用于接收第二信号的另一终端。 下一级比较器输出数字信号。 具有恒定滞后宽度的滞后比较装置可以抑制毛刺的影响。 此外,在环境的影响下,仍然可以提供恒定的滞后宽度,使得滞后,比较装置可以更高精度地判断接收信号。
    • 8. 发明申请
    • High-speed low-noise charge pump
    • 高速低噪声电荷泵
    • US20050068090A1
    • 2005-03-31
    • US10671654
    • 2003-09-29
    • Chun-Chieh ChenJyh-Fong Lin
    • Chun-Chieh ChenJyh-Fong Lin
    • H03L7/089H03L7/06
    • H03L7/0895
    • A high-speed, low-noise charge pump for use in a phase-locked loop. The charge pump is constituted by first and second cascode current mirrors, as well as first and second switching transistors. The first cascode current mirror includes a first output mirror transistor and a first output cascode transistor. The first switching transistor is interposed between the first output mirror and the first output cascode transistors. During assertion of a first control signal, the first switching transistor is turned on so a first mirror current can flow through an output node. Likewise, the second cascode current mirror includes a second output mirror transistor and a second output cascode transistor. The second switching transistor is interposed between the second output mirror and the second output cascode transistors. During assertion of a second control signal, the second switching transistor is turned on so the second mirror current can flow through the output node.
    • 用于锁相环的高速,低噪声电荷泵。 电荷泵由第一和第二共源共栅电流镜以及第一和第二开关晶体管构成。 第一共源共栅电流镜包括第一输出镜晶体管和第一输出共源共栅晶体管。 第一开关晶体管插在第一输出反射镜和第一输出共源共栅晶体管之间。 在断言第一控制信号期间,第一开关晶体管导通,使得第一反射镜电流可以流过输出节点。 类似地,第二共源共栅电流镜包括第二输出镜晶体管和第二输出共源共栅晶体管。 第二开关晶体管插在第二输出反射镜和第二输出共源共栅晶体管之间。 在断言第二控制信号期间,第二开关晶体管导通,使得第二反射镜电流可以流过输出节点。
    • 9. 发明授权
    • Signal processing circuit for optical disc drivers and the related method
    • 光盘驱动器信号处理电路及相关方法
    • US07532560B2
    • 2009-05-12
    • US10906541
    • 2005-02-24
    • Jyh-Fong LinYi-Bin HsiehChih-Chang Chien
    • Jyh-Fong LinYi-Bin HsiehChih-Chang Chien
    • G11B7/00G11B5/09
    • G11B20/10027G11B20/10009G11B20/10046G11B20/10314
    • A signal processing circuit for adjusting an input signal and generating a corresponding digital output signal in an optical disk driver is provided. The signal processing circuit includes an attenuator for receiving and attenuating the input signal and then generating an attenuated output signal; a gain controllable amplifier for receiving and amplifying the input signal and then generating an amplified output signal; a control unit providing a control signal and a select signal, the control signal is directed to the attenuator and the gain controllable amplifier for enabling/disabling the attenuator and the gain controllable amplifier and for controlling their gains such that one of the attenuator and gain controllable amplifier is enabled at a time; and a waveform adjuster circuit for adjusting the amplified/attenuated output signal delivered from the gain controllable amplifier or the attenuator so as to generate the digital signal related to the input signal.
    • 提供了一种用于在光盘驱动器中调整输入信号并产生相应的数字输出信号的信号处理电路。 信号处理电路包括:衰减器,用于接收和衰减输入信号,然后产生衰减的输出信号; 增益可控放大器,用于接收和放大输入信号,然后产生放大的输出信号; 提供控制信号和选择信号的控制单元,控制信号被引导到衰减器和增益可控放大器,用于使能/禁用衰减器和增益可控放大器并用于控制其增益,使得衰减器和增益中的一个可控 放大器一次启用; 以及用于调整从增益可控放大器或衰减器传送的放大/衰减的输出信号的波形调节器电路,以便产生与输入信号有关的数字信号。