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    • 5. 发明申请
    • Method and apparatus for measuring pulse widths of a side-band signal
    • 用于测量边带信号的脉冲宽度的方法和装置
    • US20080100346A1
    • 2008-05-01
    • US11976922
    • 2007-10-30
    • Hyung-seuk KimJae-kwan Kim
    • Hyung-seuk KimJae-kwan Kim
    • G01R29/02
    • H03K9/08H03K5/1565
    • Example embodiments are directed to an apparatus and method for measuring a pulse width. A side-band signal generator may be configured to receive a given data pattern and output a side-band signal by modulating a pulse width of the received data pattern in a test mode. A phase detector may be configured to receive the side-band signal and a reference clock signal, and output a pulse signal corresponding to a phase difference between the received side-band signal and the reference clock signal. A charge pump may be configured to receive the pulse signal and output an output voltage by increasing or decreasing the output voltage based on the pulse signal. A pulse width measurer may be configured to receive the output voltage of the charge pump and determine whether pulses forming the side-band signal have appropriate widths based on whether the output voltage is included in a desired reference voltage range.
    • 示例性实施例涉及用于测量脉冲宽度的装置和方法。 侧带信号发生器可以被配置为通过在测试模式中调制所接收的数据模式的脉冲宽度来接收给定的数据模式并输出边带信号。 相位检测器可以被配置为接收边带信号和参考时钟信号,并且输出与接收的边带信号和参考时钟信号之间的相位差对应的脉冲信号。 电荷泵可以被配置为通过基于脉冲信号增加或减小输出电压来接收脉冲信号并输出​​输出电压。 脉冲宽度测量器可以被配置为接收电荷泵的输出电压,并且基于输出电压是否包括在期望的参考电压范围来确定形成边带信号的脉冲是否具有适当的宽度。
    • 6. 发明授权
    • Dynamic output buffer circuit
    • 动态输出缓冲电路
    • US07538573B2
    • 2009-05-26
    • US11705251
    • 2007-02-12
    • Jae-kwan KimJoo-sun Choi
    • Jae-kwan KimJoo-sun Choi
    • H03K17/16
    • H03K19/0005H04L25/0278H04L25/0288
    • A dynamic output buffer circuit performs an impedance matching function and a pre-emphasis function by using input and output signals, and consumes relatively less power, occupies a relatively smaller layout area, and dynamically varies an output impedance. The dynamic output buffer circuit dynamically matches an output impedance to the characteristic impedance of a metal line connected to an external circuit, pre-emphasizes at least one input signal, and includes a control circuit and an output circuit. The control circuit matches the output impedance of the dynamic output circuit to the characteristic impedance of the metal line in response to at least one output signal, and outputs a plurality of resistor control signals which are used to pre-emphasize at least one input signal in response to the input signal. The output circuit controls the output impedance and pre-emphasizes the input signal in response to the resistor control signals, and outputs the output signal.
    • 动态输出缓冲电路通过使用输入和输出信号来执行阻抗匹配功能和预加重功能,并且消耗相对较小的功率,占据相对较小的布局面积,并且动态地改变输出阻抗。 动态输出缓冲电路将输出阻抗与连接到外部电路的金属线的特性阻抗动态匹配,预先强调至少一个输入信号,并且包括控制电路和输出电路。 响应于至少一个输出信号,控制电路将动态输出电路的输出阻抗与金属线的特性阻抗相匹配,并输出多个电阻控制信号,用于预先强调至少一个输入信号 响应输入信号。 输出电路控制输出阻抗,并响应于电阻控制信号预加强输入信号,并输出输出信号。
    • 7. 发明授权
    • Control signal generation circuit and data transmission circuit having the same
    • 控制信号发生电路和数据传输电路具有相同的功能
    • US07117381B2
    • 2006-10-03
    • US10750896
    • 2004-01-05
    • Jae-kwan KimJung-hwan Choi
    • Jae-kwan KimJung-hwan Choi
    • G06F1/04
    • G06F5/06
    • A data transmission circuit includes a control signal generation circuit, a write state machine, a conversion circuit, a read state machine, and a selection circuit. The control signal generation circuit receives a strobe signal and a clock signal in response to an enable signal, generates a write control signal that is activated in response to a rising edge of the strobe signal, and generates a read control signal that is activated in response to a first rising or falling edge of the clock signal after the write control signal is activated. The write state machine is activated in response to the write control signal, changes its internal state in synchronization with the strobe signal, and sequentially outputs input control signals in response to the changed internal state. The conversion circuit converts serial data to parallel data in response to the input control signal sequentially output from the write state machine and latches the parallel data. The read state machine is activated in response to the read control signal, changes its internal state in synchronization with the clock signal, and sequentially outputs output control signals in response to the changed internal state. The selection circuit outputs the parallel data latched in the conversion circuit in the same order that the serial data is sequentially input to the conversion circuit in response to the output control signals sequentially output from the read state machine.
    • 数据传输电路包括控制信号产生电路,写状态机,转换电路,读状态机和选择电路。 控制信号发生电路响应于使能信号接收选通信号和时钟信号,产生响应于选通信号的上升沿被激活的写入控制信号,并产生响应中被激活的读取控制信号 在写入控制信号被激活之后到时钟信号的第一个上升沿或下降沿。 写状态机响应于写入控制信号被激活,与选通信号同步地改变其内部状态,并响应于改变的内部状态顺序地输出输入控制信号。 转换电路响应于从写入状态机顺序地输出的输入控制信号将串行数据转换为并行数据并锁存并行数据。 读取状态机响应于读取控制信号被激活,与时钟信号同步地改变其内部状态,并且响应于改变的内部状态顺序地输出输出控制信号。 选择电路响应于从读取状态机顺序地输出的输出控制信号,以与顺序地将串行数据顺序地输入到转换电路的顺序相同的顺序输出锁存在转换电路中的并行数据。
    • 8. 发明授权
    • Method of compensating for propagation delay of tri-state bidirectional bus in a semiconductor device
    • 补偿半导体器件中三态双向总线传播延迟的方法
    • US08015336B2
    • 2011-09-06
    • US11949176
    • 2007-12-03
    • Jae-kwan Kim
    • Jae-kwan Kim
    • G06F13/00
    • H04L7/0008H04L7/04
    • A semiconductor device for detecting and compensating for a propagation delay of a tri-state bidirectional bus connected between a master block and a plurality of slave blocks. The master block controls the slave blocks. A bidirectional bus connects the master block and each of the slave blocks and accommodates transmission of data therebetween. A unidirectional bus is connected between the master block and each of the slave blocks. The unidirectional bus accommodates the transmission of control signals generated in the master block to the slave blocks wherein the master block detects a propagation delay time between the master block and the slave blocks. The master block counts the number of clocks from a time when a selected slave block transmits an allocated symbol to a time when the allocated symbol reaches the master block such that a propagation delay time between the master block and the selected slave block is detected and stored.
    • 一种用于检测和补偿连接在主块和多个从块之间的三态双向总线的传播延迟的半导体器件。 主站控制从站。 双向总线连接主块和每个从块,并适应其间的数据传输。 主模块和每个从模块之间连接有单向总线。 单向总线适应在主块中产生的控制信号到从属块的传输,其中主块检测主块和从属块之间的传播延迟时间。 主块对所选择的从块发送分配符号的时间计数到分配的符号到达主块的时间,从而检测并存储主块与所选择的从块之间的传播延迟时间 。
    • 9. 发明授权
    • Method and apparatus for measuring pulse widths of a side-band signal
    • 用于测量边带信号的脉冲宽度的方法和装置
    • US07656147B2
    • 2010-02-02
    • US11976922
    • 2007-10-30
    • Hyung-seuk KimJae-kwan Kim
    • Hyung-seuk KimJae-kwan Kim
    • G01R25/00H01D13/00H03K7/08H03L7/06
    • H03K9/08H03K5/1565
    • Example embodiments are directed to an apparatus and method for measuring a pulse width. A side-band signal generator may be configured to receive a given data pattern and output a side-band signal by modulating a pulse width of the received data pattern in a test mode. A phase detector may be configured to receive the side-band signal and a reference clock signal, and output a pulse signal corresponding to a phase difference between the received side-band signal and the reference clock signal. A charge pump may be configured to receive the pulse signal and output an output voltage by increasing or decreasing the output voltage based on the pulse signal. A pulse width measurer may be configured to receive the output voltage of the charge pump and determine whether pulses forming the side-band signal have appropriate widths based on whether the output voltage is included in a desired reference voltage range.
    • 示例性实施例涉及用于测量脉冲宽度的装置和方法。 侧带信号发生器可以被配置为通过在测试模式中调制所接收的数据模式的脉冲宽度来接收给定的数据模式并输出边带信号。 相位检测器可以被配置为接收边带信号和参考时钟信号,并且输出与接收的边带信号和参考时钟信号之间的相位差对应的脉冲信号。 电荷泵可以被配置为通过基于脉冲信号增加或减小输出电压来接收脉冲信号并输出​​输出电压。 脉冲宽度测量器可以被配置为接收电荷泵的输出电压,并且基于输出电压是否包括在期望的参考电压范围来确定形成边带信号的脉冲是否具有适当的宽度。