Clock generator with stability during PVT variations and on-chip oscillator having the same
    14.
    发明授权
    Clock generator with stability during PVT variations and on-chip oscillator having the same 有权
    时钟发生器在PVT变化期间具有稳定性,并具有相同的片内振荡器

    公开(公告)号:US09584132B2

    公开(公告)日:2017-02-28

    申请号:US14961523

    申请日:2015-12-07

    Abstract: Provided is a clock generator that includes a comparator in which characteristics of two input signals vary over time. A voltage controller, having a resistor and at least one constant current source, generates a direct current (DC) voltage proportional to an output current of the constant current source and a resistance value of the resistor. The comparator compares a ramp voltage generated by the voltage controller with the DC voltage.

    Abstract translation: 提供了一种时钟发生器,其包括其中两个输入信号的特性随时间变化的比较器。 具有电阻器和至少一个恒定电流源的电压控制器产生与恒定电流源的输出电流成比例的电流(DC)电压和电阻器的电阻值。 比较器将电压控制器产生的斜坡电压与直流电压进行比较。

    Systems and methods for temperature compensated oscillators having low noise
    15.
    发明授权
    Systems and methods for temperature compensated oscillators having low noise 有权
    具有低噪声的温度补偿振荡器的系统和方法

    公开(公告)号:US09577647B2

    公开(公告)日:2017-02-21

    申请号:US14700739

    申请日:2015-04-30

    CPC classification number: H03L1/022 H03B5/04 H03L1/02

    Abstract: A voltage controlled oscillator arrangement is disclosed. The arrangement includes a voltage controlled oscillator and a bypass component. The voltage controlled oscillator has an output and a tuning port. The output provides an output signal at an operating frequency. The tuning port is configured to select the operating frequency according to an applied voltage. The voltage controlled oscillator has active portions and inactive portions. During the active portions, the output signal is at a non-zero value. The bypass component is configured to apply a bypass compensating signal to the tuning port during the active portions of the voltage controlled oscillator. The bypass compensating signal compensates for an oscillator temperature of the voltage controlled oscillator.

    Abstract translation: 公开了压控振荡器装置。 该装置包括压控振荡器和旁路部件。 压控振荡器具有输出和调谐端口。 输出提供工作频率的输出信号。 调谐端口配置为根据施加的电压选择工作频率。 压控振荡器具有有效部分和无效部分。 在有效部分期间,输出信号处于非零值。 旁路部件配置为在压控振荡器的有效部分期间向调谐端口施加旁路补偿信号。 旁路补偿信号补偿压控振荡器的振荡器温度。

    Semiconductor device and metering apparatus
    16.
    发明授权
    Semiconductor device and metering apparatus 有权
    半导体装置和计量装置

    公开(公告)号:US09543964B2

    公开(公告)日:2017-01-10

    申请号:US14928183

    申请日:2015-10-30

    Inventor: Yosuke Iwasa

    Abstract: A semiconductor device includes: an oscillator; a semiconductor chip that includes an oscillation circuit connected to the oscillator, a timer circuit that generates a timing signal of a frequency according to a oscillation frequency of the oscillation circuit, and a frequency correction section that corrects a frequency of the timing signal based on temperature data; and a discrete device that includes at least one of a temperature sensing device that detects a peripheral temperature, that supplies the detected temperature as temperature data to the frequency correction section, and that is provided as a separate body to the semiconductor chip, or a capacitor that is electrically connected to both the oscillator and the oscillation circuit and that is provided as a separate body to the semiconductor chip, wherein the oscillator, the semiconductor chip and the discrete device are contained within a single package.

    Abstract translation: 一种半导体器件包括:振荡器; 包括连接到所述振荡器的振荡电路的半导体芯片,根据所述振荡电路的振荡频率产生频率的定时信号的定时器电路,以及基于温度校正所述定时信号的频率的频率校正部 数据; 以及分立装置,其包括检测周边温度的温度检测装置中的至少一个,其将检测到的温度作为温度数据提供给频率校正部,并且作为与半导体芯片的分离体一起提供,或者电容器 电连接到振荡器和振荡电路,并且作为与半导体芯片分开的主体提供,其中振荡器,半导体芯片和分立器件被包含在单个封装内。

    Handheld device and frequency tracking method thereof
    17.
    发明授权
    Handheld device and frequency tracking method thereof 有权
    手持设备及其频率跟踪方法

    公开(公告)号:US09531387B2

    公开(公告)日:2016-12-27

    申请号:US14587128

    申请日:2014-12-31

    Applicant: MEDIATEK INC.

    CPC classification number: H03L1/02 H04B2001/3861

    Abstract: A handheld device and a frequency tracking method thereof are provided. The handheld device comprises an oscillator, a radio frequency (RF) chip, a modem module, a first thermal sensor and a thermal module. The oscillator generates an oscillation signal with an oscillation frequency. The RF chip is electrically connected to the oscillator and configured to receive a paging signal from a paging channel and an RF signal from a non-regular channel based on the oscillation signal. The modem module is electrically connected to the RF chip. The first thermal sensor disposed close to the oscillator measures a heat source temperature. The thermal module electrically connected to the modem module and the first thermal sensor enables the modem module to execute a frequency compensation process by using the RF signal of both the paging signal and the RF signal according to the heat source temperature.

    Abstract translation: 提供了一种手持设备及其频率跟踪方法。 手持设备包括振荡器,射频(RF)芯片,调制解调器模块,第一热传感器和热模块。 振荡器产生振荡频率的振荡信号。 RF芯片电连接到振荡器,并且被配置为基于振荡信号从寻呼信道和来自非规则信道的RF信号接收寻呼信号。 调制解调器模块电连接到RF芯片。 靠近振荡器设置的第一个热传感器测量热源温度。 电连接到调制解调器模块和第一热传感器的热模块使得调制解调器模块能够根据热源温度使用寻呼信号和RF信号的RF信号来执行频率补偿处理。

    DIGITALLY CONTROLLED OSCILLATOR AND ELECTRONIC DEVICE INCLUDING THE SAME

    公开(公告)号:US20160352340A1

    公开(公告)日:2016-12-01

    申请号:US15236613

    申请日:2016-08-15

    Inventor: Du-ho Kim

    CPC classification number: H03L5/02 G06F1/08 H03L1/00 H03L1/02 H03L7/06 H03L7/099

    Abstract: Provided are a digitally controlled oscillator and an electronic device including the digitally controlled oscillator. The digitally controlled oscillator includes a digital control unit and a power control oscillation unit. The digital control unit compensates for a difference between a feedback signal of an output power and a reference power set based on an input digital control signal and outputting an output power. The power control oscillation unit receives a signal related to the output power, and generates an output clock having an oscillation frequency in response to the signal related to the output power.

    Closed loop bank selection for temperature compensation in wireless systems
    19.
    发明授权
    Closed loop bank selection for temperature compensation in wireless systems 有权
    无线系统温度补偿的闭环选择

    公开(公告)号:US09503107B1

    公开(公告)日:2016-11-22

    申请号:US14885690

    申请日:2015-10-16

    Abstract: The disclosure is directed to compensating for frequency drift in a voltage-controlled oscillator (VCO). Example methods and systems are described which may detect a signal edge associated with a transceiver, and determine whether one or more lock quality signals indicate that the VCO frequency is outside of an specified range, indicating an unacceptable amount of frequency drift. A frequency tuning setting of the VCO may be adjusted based on the one or more lock quality signals, and a determination may be made whether or not the one or more lock quality signals indicate that the VCO frequency has returned to the specified range. The adjustment of the frequency tuning setting of the VCO may be repeated until the VCO frequency returns to the specified range.

    Abstract translation: 本公开旨在补偿压控振荡器(VCO)中的频率漂移。 描述了可以检测与收发器相关联的信号边缘的示例方法和系统,并且确定一个或多个锁定质量信号是否指示VCO频率在指定范围之外,指示不可接受的频率漂移量。 可以基于一个或多个锁定质量信号来调整VCO的频率调谐设置,并且可以确定一个或多个锁定质量信号是否指示VCO频率已经返回到指定的范围。 可以重复VCO的频率调谐设置的调整,直到VCO频率返回到指定的范围。

    CRYSTAL OSCILLATOR AND METHOD OF MANUFACTURING CRYSTAL OSCILLATORS
    20.
    发明申请
    CRYSTAL OSCILLATOR AND METHOD OF MANUFACTURING CRYSTAL OSCILLATORS 审中-公开
    晶体振荡器及制造晶体振荡器的方法

    公开(公告)号:US20160322936A1

    公开(公告)日:2016-11-03

    申请号:US15209762

    申请日:2016-07-14

    CPC classification number: H03B5/32 H03B5/366 H03B2201/0208 H03H9/24 H03L1/02

    Abstract: An crystal resonator includes a first oscillating circuit that oscillates a crystal resonator at a first frequency, a first impedance adjusting circuit that adjusts an impedance of a first oscillating system including the crystal resonator and the first oscillating circuit, a second oscillating circuit that oscillates the crystal resonator at a second frequency that is different from the first frequency, a second impedance adjusting circuit that adjusts an impedance of a second oscillating system including the crystal resonator and the second oscillating circuit, and a controlling circuit that controls the first impedance adjusting circuit and the second impedance adjusting circuit.

    Abstract translation: 晶体谐振器包括以第一频率振荡晶体谐振器的第一振荡电路,调节包括晶体谐振器和第一振荡电路的第一振荡系统的阻抗的第一阻抗调节电路,使晶体振荡的第二振荡电路 谐振器,其与第一频率不同的第二频率;第二阻抗调节电路,其调节包括晶体谐振器和第二振荡电路的第二振荡系统的阻抗;以及控制电路,其控制第一阻抗调节电路和 第二阻抗调整电路。

Patent Agency Ranking