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    • 5. 发明申请
    • LOCAL OSCILLATOR
    • 本地振荡器
    • US20160204786A1
    • 2016-07-14
    • US14834164
    • 2015-08-24
    • KABUSHIKI KAISHA TOSHIBA
    • Hiroyuki KOBAYASHI
    • H03L7/099H03L7/093
    • H03L7/0994H03L7/093H03L7/104H03L7/146H03L2207/50
    • According to an embodiment, a local oscillator includes a digitally-controlled oscillator, a frequency multiplier, a phase data generator, a subtracter, a moving average filter and a loop filter. The frequency multiplier is configured to multiply a frequency of a reference signal by N (where N is an integer of 2 or more) and generate a multiplication reference signal. The phase data generator is configured to output phase data of the oscillating signal in synchronization with the multiplication reference signal. The subtracter is configured to subtract the phase data from reference phase data and output the subtraction result as first phase error data. The moving average filter is configured to output, as second phase error data, a moving average of the consecutive N first phase error data in synchronization with the multiplication reference signal. The loop filter is configured to filter the second phase error data.
    • 根据实施例,本地振荡器包括数字控制振荡器,倍频器,相位数据发生器,减法器,移动平均滤波器和环路滤波器。 倍频器被配置为将参考信号的频率乘以N(其中N是2或更大的整数)并产生乘法参考信号。 相位数据发生器被配置为与乘法参考信号同步地输出振荡信号的相位数据。 减法器被配置为从参考相位数据中减去相位数据,并将减法结果作为第一相位误差数据输出。 移动平均滤波器被配置为与乘法参考信号同步地输出连续N个第一相位误差数据的移动平均值作为第二相位误差数据。 环路滤波器被配置为过滤第二相位误差数据。
    • 7. 发明申请
    • VOLTAGE CONTROLLED OSCILLATOR
    • 电压控制振荡器
    • US20160254816A1
    • 2016-09-01
    • US14836879
    • 2015-08-26
    • KABUSHIKI KAISHA TOSHIBA
    • Hiroyuki KOBAYASHI
    • H03L1/02H03B5/12
    • H03L1/02H03B5/1212H03B5/1228H03B5/124H03B5/1278
    • A stabilized oscillator includes a first transistor, a second transistor, a load, an amplifier, and an oscillator using an LC resonant circuit. The first transistor includes a source terminal connected to a first reference voltage line, a gate terminal connected to a first node, and a drain terminal connected to a second node. The second transistor includes a source terminal connected to the first reference voltage line, a gate terminal connected to the first node, and a drain terminal connected to a third node. The load is connected between the third node and a second reference voltage line. The amplifier has an output terminal connected to the first node, a first input terminal connected to the second node, and a second input terminal connected to the third node. The oscillator is connected between the second node and the second reference voltage line.
    • 稳定振荡器包括第一晶体管,第二晶体管,负载,放大器和使用LC谐振电路的振荡器。 第一晶体管包括连接到第一参考电压线的源极端子,连接到第一节点的栅极端子和连接到第二节点的漏极端子。 第二晶体管包括连接到第一参考电压线的源极端子,连接到第一节点的栅极端子和连接到第三节点的漏极端子。 负载连接在第三节点和第二参考电压线之间。 放大器具有连接到第一节点的输出端子,连接到第二节点的第一输入端子和连接到第三节点的第二输入端子。 振荡器连接在第二节点和第二参考电压线之间。