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    • 51. 发明申请
    • DATA TRANSMISSION APPARATUS FOR CHANGING CLOCK SIGNAL AT RUNTIME AND DATA INTERFACE SYSTEM INCLUDING THE SAME
    • 用于在运行期间更改时钟信号的数据传输装置和包括其的数据接口系统
    • US20170041086A1
    • 2017-02-09
    • US15223524
    • 2016-07-29
    • Samsung Electronics Co., Ltd.
    • Seung Beom PARKHong Sik PARKJong Hyup LEE
    • H04B15/02H04B17/00H03L7/07
    • H04B15/02H03L7/22H04B17/0085
    • In an example embodiment, a data transmission apparatus includes a transmission link module configured to generate a reference clock signal and a transmission D-PHY module. The transmission D-PHY module includes a first phase locked loop configured to receive the reference clock signal, and generate a first clock signal. The transmission D-PHY module further includes a second phase locked loop configured to receive the reference clock signal, and generate a second clock signal having a different frequency than the first clock signal. The transmission D-PHY module further includes a multiplexer configured to select and output one of the first and second clock signals as a clock signal according to a selection signal. The transmission D-PHY module further includes a data transmitter configured to convert parallel data into serial data in response to the clock signal for transmission to a receiver.
    • 在示例实施例中,数据传输装置包括被配置为产生参考时钟信号和传输D-PHY模块的传输链路模块。 传输D-PHY模块包括被配置为接收参考时钟信号并产生第一时钟信号的第一锁相环。 传输D-PHY模块还包括被配置为接收参考时钟信号并产生具有与第一时钟信号不同的频率的第二时钟信号的第二锁相环。 传输D-PHY模块还包括多路复用器,其被配置为根据选择信号选择并输出第一和第二时钟信号中的一个作为时钟信号。 传输D-PHY模块还包括数据发射机,其被配置为响应于时钟信号将并行数据转换为串行数据,以传输到接收机。
    • 55. 发明申请
    • System and Method for Synchronizing Multiple Oscillators Using Reduced Frequency Signaling
    • 使用降频信号同步多个振荡器的系统和方法
    • US20160204784A1
    • 2016-07-14
    • US14597039
    • 2015-01-14
    • Infineon Technologies AG
    • Saverio TrottaReinhard-Wolfgang Jungmaier
    • H03L7/07H03L7/099H01Q3/30H03L7/093
    • H03L7/07H01Q3/30H03L7/093H03L7/099
    • An embodiment method for voltage-controlled oscillator (VCO) control includes detecting a first VCO output signal of a first VCO. The first VCO output signal has a first VCO output frequency. The method also includes determining a first down-scaled signal in accordance with the first VCO output signal. The first down-scaled signal has a first down-scaled frequency that is reduced by a fixed ratio relative to a current value of the first VCO output frequency. The method also includes modifying the first VCO output frequency using a first phase lock loop (PLL) in accordance with the first down-scaled signal and an oscillating reference signal, and detecting a second VCO output signal of a second VCO. The second VCO output signal has a second VCO output frequency. The method also includes modifying the second VCO output frequency in accordance with the second VCO output signal and the first down-scaled signal.
    • 压控振荡器(VCO)控制的实施例方法包括检测第一VCO的第一VCO输出信号。 第一个VCO输出信号具有第一个VCO输出频率。 该方法还包括根据第一VCO输出信号来确定第一缩小信号。 第一缩小信号具有相对于第一VCO输出频率的当前值降低固定比率的第一降频频率。 该方法还包括使用根据第一缩小信号和振荡参考信号的第一锁相环(PLL)来修改第一VCO输出频率,以及检测第二VCO的第二VCO输出信号。 第二个VCO输出信号具有第二个VCO输出频率。 该方法还包括根据第二VCO输出信号和第一缩小信号修改第二VCO输出频率。
    • 56. 发明授权
    • Transmitter serializer latency trim
    • 发送器串行器延迟修整
    • US09374098B2
    • 2016-06-21
    • US14172550
    • 2014-02-04
    • GLOBALFOUNDRIES U.S. 2 LLC
    • Leonard R. ChiecoFrank R. Keyser, IIIMichael A Sorna
    • H04J3/06H03L7/07H04L7/10H04L7/00H03L7/081H03M9/00H04L1/00G06F1/12
    • H03L7/07G06F1/12H03L7/0814H03M9/00H04L1/00H04L7/0008H04L7/0091H04L7/10
    • A system and method for transmitting includes a plurality of multiplexers each configured to combine a pseudo random bit sequence (PRBS) with at least one input stream according to the data control clock. At least one storage device is coupled to an output of each of the plurality of multiplexers and is configured to latch data according to the data control clock. An output multiplexer is coupled to each of the at least one storage device and is configured to select between storage paths according to the data serializer clock. A PRBS checker is configured to compare a PRBS pattern on an output of the output multiplexer with a predicted PRBS pattern. A phase rotator is configured to adjust the data serializer clock based upon the comparison of the PRBS checker to reduce latency of the transmitter.
    • 用于发送的系统和方法包括多个多路复用器,每个复用器被配置为根据数据控制时钟将伪随机比特序列(PRBS)与至少一个输入流组合。 至少一个存储设备耦合到多个多路复用器中的每一个的输出,并且被配置为根据数据控制时钟锁存数据。 输出多路复用器耦合到所述至少一个存储设备中的每一个,并且被配置为根据数据串行器时钟在存储路径之间进行选择。 PRBS检查器被配置为将输出多路复用器的输出上的PRBS模式与预测的PRBS模式进行比较。 相位旋转器被配置为基于PRBS检查器的比较来调整数据串行器时钟,以减少发射机的等待时间。
    • 58. 发明授权
    • Receiving circuit
    • 接收电路
    • US09344269B2
    • 2016-05-17
    • US14681794
    • 2015-04-08
    • FUJITSU LIMITED
    • Takayuki Shibasaki
    • H04L7/033H03L7/089H03B5/12H03L7/07H03L7/093
    • H04L7/033H03B5/1212H03B5/1215H03B5/1228H03B5/124H03L7/07H03L7/0891H03L7/093H04L7/0331H04L25/14
    • A receiving circuit includes circuits arranged in parallel, each circuits including a voltage-controlled-oscillator (VCO) configured to generate a clock having an oscillation frequency according to an inductor and a capacitor, and a gain circuit. Each circuit is configured to sample a piece of input data with an output clock of the VCO and adjust the oscillation frequency of the VCO based on a phase difference and a frequency difference between the piece of input data and the output clock, thereby recovering data and a clock based on the piece of input data. The gain circuit is configured to adjust ratios of gains of up and down of the oscillation frequency of the VCO in a loop in each circuit arranged adjacent to each other, based on a phase difference between the pieces of input data and a phase difference between the output clocks of the respective circuits.
    • 接收电路包括并联布置的电路,每个电路包括被配置为产生具有根据电感器和电容器的振荡频率的时钟的压控振荡器(VCO)和增益电路。 每个电路被配置为利用VCO的输出时钟对一条输入数据进行采样,并且基于输入数据和输出时钟之间的相位差和频率差来调整VCO的振荡频率,从而恢复数据和 基于输入数据的时钟。 所述增益电路被配置为基于所述输入数据之间的相位差和所述输入数据之间的相位差来调整在彼此相邻布置的每个电路中的环路中的所述VCO的振荡频率的上升和下降的比率 各个电路的输出时钟。
    • 60. 发明授权
    • Compensation of slow time-varying variations in voltage controlled oscillator (VCO) frequency in cellular transceivers
    • 在蜂窝收发器中压控振荡器(VCO)频率的慢时变变化的补偿
    • US09203416B2
    • 2015-12-01
    • US13914486
    • 2013-06-10
    • Broadcom Corporation
    • Dmitriy RozenblitRahul Magoon
    • H04B1/403H03L7/07H03L7/099H03L7/08
    • H03L7/08H03L7/099H03L7/102H03L7/183H03L2207/06
    • Various configurations and arrangements of systems and methods for compensating for variations in VCO output frequencies are described. A system in accordance with the disclosure can include an oscillator circuit including an oscillator, a first variable capacitance diode coupled to the oscillator and a second variable capacitance diode coupled to the oscillator. The system further includes a voltage source configured to apply a first voltage to the oscillator circuit to cause the output signal to comprise a selected frequency, the selected frequency being based on a received reference voltage. The system further includes a controller circuit configured to compare an operating voltage of the oscillator to the reference voltage while the first voltage is applied to the oscillator; and apply a second voltage to the oscillator circuit based on the comparison. The second voltage compensates for a difference between the reference voltage and the first voltage.
    • 描述用于补偿VCO输出频率变化的系统和方法的各种配置和布置。 根据本公开的系统可以包括振荡器电路,其包括振荡器,耦合到振荡器的第一可变电容二极管和耦合到振荡器的第二可变电容二极管。 该系统还包括被配置为向振荡器电路施加第一电压以使输出信号包括所选择的频率的电压源,所选频率基于所接收的参考电压。 该系统还包括控制器电路,其被配置为在将第一电压施加到振荡器的同时将振荡器的工作电压与参考电压进行比较; 并根据比较对振荡电路施加第二电压。 第二电压补偿参考电压和第一电压之间的差。