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    • 3. 发明授权
    • Semiconductor memory device having externally controllable data input and output mode
    • 具有外部可控数据输入和输出模式的半导体存储器件
    • US07139847B2
    • 2006-11-21
    • US10900506
    • 2004-07-27
    • Yong-jin ParkSang-keun ParkHong KimYoung-gu Kang
    • Yong-jin ParkSang-keun ParkHong KimYoung-gu Kang
    • G06F3/00
    • G11C7/1045G11C7/1078
    • A semiconductor memory device having an externally controllable input and output mode is provided. The semiconductor memory device includes a first and second plurality of pads and an input and output mode set circuit electrically connected to the first plurality of pads and the second plurality of pads, for generating a plurality of input and output mode signals. The input and output mode set circuit cuts off signals received from the first plurality of pads, controls the level of each of the input and output mode signals to be at either a logic high level and a logic low level, and sets the input and output mode when a voltage higher than the supply voltage of the semiconductor memory device is applied to one of the second plurality of pads in a test mode. The high voltage is not applied to the second plurality of pads and the input and output mode set circuit controls the level of the input and output mode signals to be at either a logic high level or a logic low level, and thus sets the semiconductor memory device to have one input and output mode responsive to signals received from the plurality of pads, during a normal operation. Accordingly, it is possible to externally change the input and output mode of the semiconductor memory device.
    • 提供具有外部可控输入和输出模式的半导体存储器件。 半导体存储器件包括第一和第二多个焊盘以及电连接到第一多个焊盘和第二多个焊盘的输入和输出模式设置电路,用于产生多个输入和输出模式信号。 输入和输出模式设置电路切断从第一多个焊盘接收的信号,将每个输入和输出模式信号的电平控制在逻辑高电平和逻辑低电平,并设置输入和输出 当在测试模式中将高于半导体存储器件的电源电压的电压施加到第二多个焊盘中的一个焊盘时, 高电压不施加到第二多个焊盘,并且输入和输出模式设置电路将输入和输出模式信号的电平控制在逻辑高电平或逻辑低电平,从而将半导体存储器 在正常操作期间具有响应于从所述多个焊盘接收的信号的一个输入和输出模式的装置。 因此,可以从外部改变半导体存储器件的输入和输出模式。
    • 7. 发明申请
    • Quadrature phase oscillator using complex coefficient filter
    • 使用复系数滤波器的正交相位振荡器
    • US20060284686A1
    • 2006-12-21
    • US11452719
    • 2006-06-14
    • Si-Bum JunSang-Keun ParkWoo-Yong Lee
    • Si-Bum JunSang-Keun ParkWoo-Yong Lee
    • H03L7/00
    • H03B27/00
    • A quadrature phase oscillator in a Radio Frequency (RF) transceiver Integrated Circuit (IC) is provided. The quadrature phase oscillator includes a voltage controlled oscillator and a filter. The voltage controlled oscillator provides an oscillating frequency for modulation of a transmission/reception signal according to an applied voltage. The filter receives the oscillating frequency from the voltage controlled oscillator as an input, passes one of a negative frequency component of the input oscillating frequency and a positive frequency component of the input oscillating frequency, attenuates the other frequency component, generates an I (In phase) signal that is in phase with the input oscillating frequency and a Q (Quadrature phase) signal having a phase difference of 90° with the input oscillating frequency for the passed frequency component, and outputs the I signal and the Q signal.
    • 提供射频(RF)收发器集成电路(IC)中的正交相位振荡器。 正交相位振荡器包括压控振荡器和滤波器。 压控振荡器根据施加的电压提供用于调制发送/接收信号的振荡频率。 滤波器接收来自压控振荡器的振荡频率作为输入,通过输入振荡频率的负频率分量和输入振荡频率的正频率分量之一,衰减另一频率分量,产生I(相位 )信号和与输入振荡频率成90°相位差的Q(正交相位)信号,并输出I信号和Q信号。
    • 8. 发明授权
    • Semiconductor memory device having externally controllable data input and output mode
    • 具有外部可控数据输入和输出模式的半导体存储器件
    • US06845407B1
    • 2005-01-18
    • US09621925
    • 2000-07-24
    • Yong-Jin ParkSang-keun ParkHong KimYoung-gu Kang
    • Yong-Jin ParkSang-keun ParkHong KimYoung-gu Kang
    • G01R31/26G01R31/28G11C7/10G11C11/401G11C11/406G11C11/413G11C11/417G11C16/06G11C17/00G11C17/18G11C29/14G06F3/00
    • G11C7/1045G11C7/1078
    • A semiconductor memory device having an externally controllable input and output mode is provided. The semiconductor memory device includes a first and second plurality of pads and an input and output mode set circuit electrically connected to the first plurality of pads and the second plurality of pads, for generating a plurality of input and output mode signals. The input and output mode set circuit cuts off signals received from the first plurality of pads, controls the level of each of the input and output mode signals to be at either a logic high level and a logic low level, and sets the input and output mode when a voltage higher than the supply voltage of the semiconductor memory device is applied to one of the second plurality of pads in a test mode. The high voltage is not applied to the second plurality of pads and the input and output mode set circuit controls the level of the input and output mode signals to be at either a logic high level or a logic low level, and thus sets the semiconductor memory device to have one input and output mode responsive to signals received from the plurality of pads, during a normal operation. Accordingly, it is possible to externally change the input and output mode of the semiconductor memory device.
    • 提供具有外部可控输入和输出模式的半导体存储器件。 半导体存储器件包括第一和第二多个焊盘以及电连接到第一多个焊盘和第二多个焊盘的输入和输出模式设置电路,用于产生多个输入和输出模式信号。 输入和输出模式设置电路切断从第一多个焊盘接收的信号,将每个输入和输出模式信号的电平控制在逻辑高电平和逻辑低电平,并设置输入和输出 当在测试模式中将高于半导体存储器件的电源电压的电压施加到第二多个焊盘中的一个焊盘时, 高电压不施加到第二多个焊盘,并且输入和输出模式设置电路将输入和输出模式信号的电平控制在逻辑高电平或逻辑低电平,从而将半导体存储器 在正常操作期间具有响应于从所述多个焊盘接收的信号的一个输入和输出模式的装置。 因此,可以从外部改变半导体存储器件的输入和输出模式。