Differential signal output apparatus, semiconductor integrated circuit apparatus having the differential signal output apparatus, and differential signal transmission system
    1.
    发明授权
    Differential signal output apparatus, semiconductor integrated circuit apparatus having the differential signal output apparatus, and differential signal transmission system 有权
    差分信号输出装置,具有差分信号输出装置的半导体集成电路装置和差分信号传输系统

    公开(公告)号:US06788113B2

    公开(公告)日:2004-09-07

    申请号:US09973767

    申请日:2001-10-11

    IPC分类号: H03K522

    摘要: In a differential output signal circuit suitable for restraining voltage overshooting/undershooting at differential output terminals due to lags in input signals and realizing stable and fast switching of differential input signals, a first differential pair of PMOS transistors connected to a first current source and a second differential pair of NMOS transistors connected to a second current source are mutually connected at the differential output terminals, and a capacitor is connected between the connection nodes of the respective differential pairs and current sources. A transitional current path of the capacitor restrains voltage variations during differential input signal switching. Further in a signal detection apparatus suitable for realizing the detection of fast transmitted differential input signals with less current consumption and at low cost, an edge detect signal is supplied against a differential input of or above a prescribed value, and a setting signal is issued when this edge detect signal has been detected a prescribed number of times during a first prescribed length of time while a resetting signal is issued if none is detected during a second prescribed length of time. A signal-detect signal is generated from these setting signal and resetting signal.

    摘要翻译: 在差分输出信号电路中,由于输入信号的滞后而在差分输出端子上抑制电压过冲/下冲并实现差分输入信号的稳定和快速切换,差分输出信号电路连接到第一电流源和第二电流源的第一差分PMOS晶体管 连接到第二电流源的NMOS晶体管的差分对在差分输出端子处相互连接,并且电容器连接在各个差分对和电流源的连接节点之间。 电容器的过渡电流路径抑制差分输入信号切换期间的电压变化。 此外,在适于实现具有较少电流消耗和低成本的快速传输的差分输入信号的检测的信号检测装置中,针对规定值的或高于规定值的差分输入提供边缘检测信号,并且当 如果在第二规定时间长度内没有检测到复位信号,则在第一规定时间长度内已经检测到该边缘检测信号规定次数。 从这些设定信号和复位信号产生信号检测信号。

    Differential amplifier
    3.
    发明申请
    Differential amplifier 审中-公开
    差分放大器

    公开(公告)号:US20050218983A1

    公开(公告)日:2005-10-06

    申请号:US11094362

    申请日:2005-03-31

    IPC分类号: H03K19/0175 H03F3/45

    摘要: The differential amplifier of the present invention has a current source connected between a grounding wire and a terminal which can be the output point of the differential amplifier among the terminals of each transistor which constitutes the differential amplifier and to which one of two inputs to the differential amplifier is given, or a circuit element connected between the terminals which can be the output points of the differential amplifier, or two transistors which are connected to each of the terminals which can be the output points of the differential amplifier and one of which turns off when the other is on, and one of which turns on when the other is off, and the current source is connected between the two transistors and the grounding wire.

    摘要翻译: 本发明的差分放大器具有连接在接地线和端子之间的电流源,该端子可以是构成差分放大器的每个晶体管的端子之间的差分放大器的输出点,并且差分放大器的两个输入中的一个输入到差分放大器 或者连接在可以是差分放大器的输出点的端子之间的电路元件,或连接到每个端子的两个晶体管,这两个晶体管可以是差分放大器的输出点,其中一个截止 当另一个接通时,其中一个在另一个断开时导通,并且电流源连接在两个晶体管和接地线之间。

    Differential amplifier
    4.
    发明授权
    Differential amplifier 有权
    差分放大器

    公开(公告)号:US07486140B2

    公开(公告)日:2009-02-03

    申请号:US11315190

    申请日:2005-12-23

    IPC分类号: H03F3/45

    摘要: A differential amplifier of the present invention comprises transistors where to each of which one of two inputs to said differential amplifier is provided; current mirror circuits where each of which delivers one of the outputs of the differential amplifier to the load side; and cut-off prevention units where each of which is connected to the connecting point of a transistor to which a monitor current of one of the current mirror circuits flows, and one of the transistors to which the inputs are provided, and applies a current for preventing cutting off the transistor to which the monitor current flows, when the input to the transistor to which the input is provided is L.

    摘要翻译: 本发明的差分放大器包括晶体管,其中提供了所述差分放大器的两个输入中的一个; 电流镜电路,其中每个电路将差分放大器的输出中的一个传送到负载侧; 以及切断防止单元,其中每个都连接到电流镜电路中的一个电流监视电流流过的晶体管的连接点以及设置有输入端的晶体管中的一个,并将电流施加到 当输入到输入的晶体管的输入为L时,防止切断监视电流所流动的晶体管。

    Signal detection apparatus, signal detection method, signal transmission system, and computer readable program to execute signal transmission
    5.
    发明授权
    Signal detection apparatus, signal detection method, signal transmission system, and computer readable program to execute signal transmission 有权
    信号检测装置,信号检测方法,信号传输系统以及执行信号传输的计算机可读程序

    公开(公告)号:US06885221B2

    公开(公告)日:2005-04-26

    申请号:US10896967

    申请日:2004-07-23

    摘要: In a differential output signal circuit suitable for restraining voltage overshooting/undershooting at differential output terminals due to lags in input signals and realizing stable and fast switching of differential input signals, a first differential pair of PMOS. transistors connected to a first current source and a second differential pair of NMOS transistors connected to a second current source are mutually connected at the differential output terminals, and a capacitor is connected between the connection nodes of the respective differential pairs and current sources. A transitional current path of the capacitor restrains voltage variations during differential input signal switching. Further in a signal detection apparatus suitable for realizing the detection of fast transmitted differential input signals with less current consumption and at low cost, an edge detect signal is supplied against a differential input of or above a prescribed value, and a setting signal is issued when this edge detect signal has been detected a prescribed number of times during a first prescribed length of time while a resetting signal is issued if none is detected during a second prescribed length of time. A signal-detect signal is generated from these setting signal and resetting signal.

    摘要翻译: 在差分输出信号电路中,由于输入信号的滞后而导致差分输出端子上的电压过冲/欠压,从而实现差分输入信号的稳定和快速切换,即PMOS的第一个差分对。 连接到第一电流源的晶体管和连接到第二电流源的NMOS晶体管的第二差分对在差分输出端子处相互连接,并且电容器连接在各个差分对和电流源的连接节点之间。 电容器的过渡电流路径抑制差分输入信号切换期间的电压变化。 此外,在适于实现具有较少电流消耗和低成本的快速传输的差分输入信号的检测的信号检测装置中,针对规定值的或高于规定值的差分输入提供边缘检测信号,并且当 如果在第二规定时间长度内没有检测到复位信号,则在第一规定时间长度内已经检测到该边缘检测信号规定次数。 从这些设定信号和复位信号产生信号检测信号。

    Servo signal processing apparatus, recorded data reading apparatus and method for processing servo signal

    公开(公告)号:US06671115B2

    公开(公告)日:2003-12-30

    申请号:US09526277

    申请日:2000-03-15

    IPC分类号: G11B509

    摘要: A servo signal processing apparatus for processing a servo signal corresponding to servo information from a servo area on a recording medium for controlling a head. The servo area includes a servo mark area for storing a servo mark indicative of a head of the servo area, a gray mark area for storing a gray mark indicative of a head of information for position control for the head, and a gray code area for storing information. An A-D converter converts the servo signal to digital data. A digital filter filters the converted data based on a sampling clock, and outputs the filtered digital data. A servo mark detector detects a servo mark based on a continuity of a first predetermined logical value. A gray code decoder detects a gray code based on a continuity of a predetermined logical value. The gray code decoder decodes information stored in a gray code area following the detected gray mark.

    Power supply control for a signal processing apparatus
    7.
    发明授权
    Power supply control for a signal processing apparatus 失效
    信号处理装置的电源控制

    公开(公告)号:US06292322B1

    公开(公告)日:2001-09-18

    申请号:US09169445

    申请日:1998-10-09

    申请人: Hiroko Haraguchi

    发明人: Hiroko Haraguchi

    IPC分类号: G11B1902

    摘要: A signal processing apparatus for reading and writing information to a storage medium includes a power supply control circuit that selectively inhibits and enables power to individual circuits of the signal processing apparatus in order to achieve maximum power conservation. The signal processing apparatus looks ahead to determine a next operation to be performed and, using either read or write information of the next operation, along with information concerning how long it takes to power up individual circuits, determines the optimal time to switch power on to the individual circuits. Power is then supplied to the individual circuits of the signal processing apparatus only when it is required by the individual circuits.

    摘要翻译: 用于将信息读取和写入存储介质的信号处理装置包括:电源控制电路,其选择性地禁止并使得能够对信号处理装置的各个电路供电,以实现最大的功率节省。 信号处理装置前瞻性地确定要执行的下一个操作,并且使用下一个操作的读取或写入信息以及关于为各个电路加电多长时间的信息,确定将电源切换到的最佳时间 各个电路。 然后仅当各个电路需要时才将功率提供给信号处理装置的各个电路。

    Differential amplifier
    9.
    发明申请

    公开(公告)号:US20060139098A1

    公开(公告)日:2006-06-29

    申请号:US11315190

    申请日:2005-12-23

    IPC分类号: H03F3/45

    摘要: A differential amplifier of the present invention comprises transistors where to each of which one of two inputs to said differential amplifier is provided; current mirror circuits where each of which delivers one of the outputs of the differential amplifier to the load side; and cut-off prevention units where each of which is connected to the connecting point of a transistor to which a monitor current of one of the current mirror circuits flows, and one of the transistors to which the inputs are provided, and applies a current for preventing cutting off the transistor to which the monitor current flows, when the input to the transistor to which the input is provided is L.