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1.发明授权公开(公告)号：US09563242B2
公开(公告)日：2017-02-07
申请号：US14599551
申请日：2015-01-19
申请人： MEDIATEK INC.
发明人： Kuan-Hung Chen , Keng-Jan Hsiao , Hui-Chun Liu
摘要： A pulse width modulation (PWM) based Real-time clock (RTC) system includes a voltage regulator circuit, a capacitor, an RTC circuit and an on-off logic. The voltage regulator circuit is arranged to generate a regulated voltage to a connection node when enabled; the capacitor is coupled to the connection node; the RTC circuit is coupled to the connection node; and the on-off logic is coupled to the voltage regulator circuit and arranged to alternately enable and disable the voltage regulator circuit.
摘要翻译： 基于脉宽调制（PWM）的实时时钟（RTC）系统包括电压调节器电路，电容器，RTC电路和开 - 关逻辑。 电压调节器电路被布置成当启用时向连接节点产生调节电压; 电容器耦合到连接节点; RTC电路耦合到连接节点; 并且所述通断逻辑耦合到所述电压调节器电路并且被布置为交替地启用和禁用所述稳压器电路。
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2.发明申请METHOD AND CIRCUITRY FOR GENERATING TRIGGER SIGNAL AND ASSOCIATED NON-TRANSITORY COMPUTER PROGRAM PRODUCT 有权用于产生触发信号的方法和电路及相关的非终端计算机程序产品公开(公告)号：US20170041008A1
公开(公告)日：2017-02-09
申请号：US14992057
申请日：2016-01-11
申请人： MEDIATEK Inc.
发明人： Keng-Jan Hsiao , Wen-Chi Chao , Sheng-Chu Wu , Cheng-Yu Chien
IPC分类号： H03L7/08 , H03L7/181 , H03K3/0231
CPC分类号： H03K3/02315 , H03B5/36 , H03L1/00 , H03L7/08 , H03L7/181
摘要： A method and circuitry for generating a trigger signal based on an oscillation signal and associated non-transitory computer program product are provided. The method includes following steps. Firstly, a calibration value is obtained according to a reference frequency and a frequency of the oscillation signal, and a counting value is gradually altered from a first initial value to a breakpoint value. Secondly, the counting value is updated to a second initial value when the counting value is equal to the breakpoint value. Then, the counting value is gradually altered from the second initial value to a final value, and the trigger signal is generated when the counting value is equal to the final value.
摘要翻译： 提供了一种用于基于振荡信号和相关联的非暂时性计算机程序产品产生触发信号的方法和电路。 该方法包括以下步骤。 首先，根据参考频率和振荡信号的频率获得校准值，并且将计数值从第一初始值逐渐改变为断点值。 其次，当计数值等于断点值时，将计数值更新为第二初始值。 然后，计数值从第二初始值逐渐改变为最终值，并且当计数值等于最终值时产生触发信号。
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公开(公告)号：US09112485B2
公开(公告)日：2015-08-18
申请号：US14054167
申请日：2013-10-15
申请人： MediaTek Inc.
发明人： Keng-Jan Hsiao
CPC分类号： H03K5/153 , G01R19/10 , H03K3/0231 , H03K3/36 , H03K4/502 , H03K5/2472
摘要： A comparator is provided having a voltage generator, having an output terminal for providing a reference voltage. The comparator also has a buffer unit, providing an output signal according to a first input signal and the reference voltage; wherein the voltage generator provides the reference voltage according to a second input signal, and the output signal represents a compare result of the first and second input signals.
摘要翻译： 提供了具有电压发生器的比较器，具有用于提供参考电压的输出端子。 比较器还具有缓冲单元，根据第一输入信号和参考电压提供输出信号; 其中所述电压发生器根据第二输入信号提供所述参考电压，并且所述输出信号表示所述第一和第二输入信号的比较结果。
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4.发明申请公开(公告)号：US20140132362A1
公开(公告)日：2014-05-15
申请号：US14064190
申请日：2013-10-28
申请人： MEDIATEK INC.
发明人： Keng-Jan Hsiao
IPC分类号： H03L5/02
CPC分类号： H03B5/364
摘要： A self-powered power crystal oscillator XO includes a crystal unit and a power injection module. The crystal unit is arranged to oscillate to generate an oscillation signal. The power injection module is coupled to the crystal unit, and is arranged to intermittently inject energy to the crystal unit.
摘要翻译： 自供电功率晶体振荡器XO包括晶体单元和功率注入模块。 晶体单元被布置成振荡以产生振荡信号。 功率注入模块耦合到晶体单元，并且被布置成间歇地向晶体单元注入能量。
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公开(公告)号：US09941865B2
公开(公告)日：2018-04-10
申请号：US14992057
申请日：2016-01-11
申请人： MEDIATEK Inc.
发明人： Keng-Jan Hsiao , Wen-Chi Chao , Sheng-Chu Wu , Cheng-Yu Chien
CPC分类号： H03K3/02315 , H03B5/36 , H03L1/00 , H03L7/08 , H03L7/181
摘要： A method and circuitry for generating a trigger signal based on an oscillation signal and associated non-transitory computer program product are provided. The method includes following steps. Firstly, a calibration value is obtained according to a reference frequency and a frequency of the oscillation signal, and a counting value is gradually altered from a first initial value to a breakpoint value. Secondly, the counting value is updated to a second initial value when the counting value is equal to the breakpoint value. Then, the counting value is gradually altered from the second initial value to a final value, and the trigger signal is generated when the counting value is equal to the final value.
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6.发明申请公开(公告)号：US20160062427A1
公开(公告)日：2016-03-03
申请号：US14599551
申请日：2015-01-19
申请人： MEDIATEK INC.
发明人： Kuan-Hung Chen , Keng-Jan Hsiao , Hui-Chun Liu
摘要： A pulse width modulation (PWM) based Real-time clock (RTC) system includes a voltage regulator circuit, a capacitor, an RTC circuit and an on-off logic. The voltage regulator circuit is arranged to generate a regulated voltage to a connection node when enabled; the capacitor is coupled to the connection node; the RTC circuit is coupled to the connection node; and the on-off logic is coupled to the voltage regulator circuit and arranged to alternately enable and disable the voltage regulator circuit.
摘要翻译： 基于脉宽调制（PWM）的实时时钟（RTC）系统包括电压调节器电路，电容器，RTC电路和开 - 关逻辑。 电压调节器电路被布置成在使能时向连接节点产生调节电压; 电容器耦合到连接节点; RTC电路耦合到连接节点; 并且所述通断逻辑耦合到所述电压调节器电路并且被布置为交替地启用和禁用所述稳压器电路。
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7.发明授权公开(公告)号：US09112449B2
公开(公告)日：2015-08-18
申请号：US14064190
申请日：2013-10-28
申请人： MEDIATEK INC.
发明人： Keng-Jan Hsiao
IPC分类号： H03B5/36
CPC分类号： H03B5/364
摘要： A self-powered power crystal oscillator XO includes a crystal unit and a power injection module. The crystal unit is arranged to oscillate to generate an oscillation signal. The power injection module is coupled to the crystal unit, and is arranged to intermittently inject energy to the crystal unit.
摘要翻译： 自供电功率晶体振荡器XO包括晶体单元和功率注入模块。 晶体单元被布置成振荡以产生振荡信号。 功率注入模块耦合到晶体单元，并且被布置成间歇地向晶体单元注入能量。
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