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    • 55. 发明申请
    • Signal-level converter
    • 信号电平转换器
    • US20050219924A1
    • 2005-10-06
    • US11143994
    • 2005-06-03
    • Akira TakibaToru FujiiTetsuyo Shigehiro
    • Akira TakibaToru FujiiTetsuyo Shigehiro
    • H03K19/0185G11C7/00
    • H03K19/018507
    • A signal-level converter is provided between a first terminal and a second terminal. The first terminal is connected to a first logic circuit operating at a first supply voltage higher than a given reference voltage. The second terminal is connected to a second logic circuit operating at a second supply voltage higher than the first supply voltage. The signal-level converter has a switching transistor that forms a current passage between the first and the second terminals in response to a control signal supplied to a gate of the switching transistor and a bus-hold circuitry, provided between the switching transistor and either the first or the second terminal as the output terminal, the other being the input terminal, and configured to convert a voltage level of a signal transferred via the switching transistor into another voltage level at the output terminal. The bus-hold circuitry may have two bus-hold circuits between the input and the output terminals, for two-way signal transfer. The bus-hold circuitry may have one bus-hold circuit between the switching transistor and the output terminal, for one-way signal transfer. These circuit arrangements offer reduced chip size and simplified control operations for accurate output-terminal voltages. Moreover, the arrangements omit one direction-switching terminal in two-way signal transfer.
    • 信号电平转换器设置在第一端子和第二端子之间。 第一端子连接到以高于给定参考电压的第一电源电压工作的第一逻辑电路。 第二端子连接到以高于第一电源电压的第二电源电压工作的第二逻辑电路。 信号电平转换器具有开关晶体管,其响应于提供给开关晶体管的栅极的控制信号和设置在开关晶体管和总线保持电路之间的总线保持电路,在第一和第二端子之间形成电流通路 第一端子或第二端子作为输出端子,另一端为输入端子,并且被配置为将经由开关晶体管传送的信号的电压电平转换为输出端子处的另一电压电平。 总线保持电路可以在输入端和输出端之间具有两个总线保持电路,用于双向信号传输。 总线保持电路可以在开关晶体管和输出端之间具有一个总线保持电路,用于单向信号传输。 这些电路安排可以降低芯片尺寸,并简化控制操作,以获得精确的输出端电压。 此外,该布置省略了双向信号传输中的一个方向切换终端。
    • 56. 发明授权
    • Ultrasonic flowmeter for controlling the gain of an amplifier for amplifying received signals
    • 用于控制用于放大接收信号的放大器的增益的超声波流量计
    • US06622572B2
    • 2003-09-23
    • US10097128
    • 2002-03-14
    • Tamotsu KobayashiKunikazu ShigetaToru Fujii
    • Tamotsu KobayashiKunikazu ShigetaToru Fujii
    • G01F166
    • G01F1/667
    • The amplifying gain is controlled by means of a data reduction equipment on the basis of the control signal input into the amplifier for amplifying the received signal propagated through the fluid and received in the ultrasonic transducer in the receiving side. The data reduction equipment includes an analog-digital converter, a processor, and a memory, wherein converted into digital data are waveform data including a peak value of each of the received signals, and the obtained digital data are stored in the memory. The processor screens the peak values stored in the memory to obtain a screened peak value achieved on the fluid including no impurities such as bubbles or solid particles, compares the obtained peak value with the preset peak value set preliminary on the processor, sends a control signal to the gain control terminal of the amplifier on the basis of the result of the comparison, and controls the peak value included in the output signal of the amplifier so as to take the substantially equal value as that of the preset value of the peak.
    • 放大增益通过数据还原装置根据输入到放大器的控制信号进行控制,用于放大通过流体传播并接收在接收侧的超声换能器中的接收信号。 数据还原装置包括模拟数字转换器,处理器和存储器,其中转换成数字数据是包括每个接收信号的峰值的波形数据,并且所获得的数字数据被存储在存储器中。 处理器屏蔽存储在存储器中的峰值,以获得在流体上实现的筛选峰值,不包括诸如气泡或固体颗粒的杂质,将获得的峰值与在处理器上初步设置的预设峰值进行比较,发送控制信号 基于比较结果,将放大器的增益控制端子发送到放大器的增益控制端子,并且控制放大器的输出信号中包括的峰值,以获得与峰值的预设值基本相等的值。
    • 57. 发明授权
    • Optical information medium, stamper for manufacturing transparent substrate therefor and recording method therefor
    • 光学信息介质,用于制造其透明基板的压模及其记录方法
    • US06504815B1
    • 2003-01-07
    • US09504267
    • 2000-02-15
    • Toru FujiiEmiko Hamada
    • Toru FujiiEmiko Hamada
    • G11B1100
    • G11B7/24085G11B7/00745G11B7/263
    • An optical information medium is made up of a transparent substrate for a recording laser beam to penetrate therethrough, a recording layer formed on the transparent substrate, and a reflective layer for reflecting reproducing laser beam formed thereupon enabling the recording of optically readable signals by means of an incident recording laser from the transparent substrate. The transparent substrate has spiral-like tracking guides on the surface of the transparent substrate on which is formed the recording layer, and pre-pits indicative of address information are formed on a land portion defined between the tracking guides. The pre-pits are formed shifted from a center of the land. With this construction, the pre-pits open to a side of the tracking guide neighboring the land. With this, it is possible to read out address signals from the pre-pits with certainty when recording, and also to suppress errors due to mixing between the signals obtained from the pre-pits indicative of the address information and the recorded data read out from the pits on the tracking guides when reading the recorded optically readable signals.
    • 光信息介质由用于穿透其的记录激光束的透明基板,形成在透明基板上的记录层和用于反射在其上形成的再现激光束反射的反射层构成,使得能够通过以下方式记录光学可读信号: 来自透明基板的入射记录激光。 透明基板在其上形成记录层的透明基板的表面上具有螺旋形跟踪引导件,并且在跟踪引导件之间限定的台面部分上形成指示地址信息的预凹坑。 预制坑从地面中心转移。 通过这种结构,预留凹坑向邻近该陆地的跟踪指南的一侧开放。 由此,可以在记录时确定地读出来自预制凹坑的地址信号,并且还能够抑制由于从表示地址信息的预制坑获得的信号与从 当读取记录的光学可读信号时,跟踪引导件上的凹坑。
    • 58. 发明授权
    • Optical information medium
    • 光信息媒体
    • US06493312B1
    • 2002-12-10
    • US09351845
    • 1999-07-13
    • Ryou NegishiToshiaki TajimaToru FujiiEmiko Hamada
    • Ryou NegishiToshiaki TajimaToru FujiiEmiko Hamada
    • G11B724
    • G11B7/00745G11B7/24G11B7/24079G11B7/24085
    • An optical information medium is made up of a transparent substrate for a reproducing laser beam to penetrate therethrough, a recording layer formed on the transparent substrate and a reflective layer for reflecting the reproducing laser beam thereupon, thereby enabling the recording of optically readable signals by a recording laser beam incident upon the transparent substrate. This optical information medium has a spiral-like tracking guide on a side surface of the transparent substrate, on which the recording layer is formed, and on lands defined between the spiral-like tracking guide are formed land pre pits indicative of the sector information, including the address and so on, wherein the length of the land pre pits is selected to be from 50% to 83% of the length of the minimum pit and to be from 1.5 to 2.5 times the length of the channel clock. Also, the film thickness of the recording layer in the area of the land pre pits is selected to differ from the film thickness of the recording layer in the area of the tracking guide.
    • 光学信息介质由用于再现激光束透过的透明基板,形成在透明基板上的记录层和用于反射其上的再现激光束的反射层组成,从而能够通过光学可读信号记录光学可读信号 记录入射到透明基板上的激光束。 该光学信息介质在透明基板的形成有记录层的侧面上具有螺旋形跟踪引导件,并且在螺旋状跟踪引导件之间形成的焊盘上形成指示扇区信息的焊盘预先凹坑, 包括地址等,其中,土地预制坑的长度被选择为最小坑的长度的50%至83%,并且是通道时钟的长度的1.5至2.5倍。 此外,选择区域预凹坑区域中的记录层的膜厚度与跟踪引导件的区域中的记录层的膜厚度不同。
    • 59. 发明授权
    • Optical information medium
    • 光信息媒体
    • US06445676B1
    • 2002-09-03
    • US08965875
    • 1997-11-07
    • Toru FujiiYuji TomizawaEmiko Hamada
    • Toru FujiiYuji TomizawaEmiko Hamada
    • G11B370
    • G11B23/40G11B7/24024G11B7/2467G11B7/2472G11B7/2531G11B7/2533G11B7/2534G11B7/2535G11B7/256G11B7/2585G11B7/2595G11B23/0042
    • An optical information medium comprises a pair of discs which are bonded to each other, an optical recording layer provided on at least one of the discs, and a reflecting layer formed on an upper side of the optical recording layer. The optical information medium further includes an adhesive for bonding the pair of discs provided on the reflecting layer, wherein the adhesive has a thickness ranging from 10 to 80 &mgr;m. A protecting layer is provided on the upper side of the reflecting layer wherein the pair of discs may be bonded by the protecting layer. The optical recording layer, reflecting layer and protecting layer may be directly sequentially provided on the disc but another substrate layer may be inserted between these layers. There is employed, as the adhesive, those including a reactive curing resin or a hot melt material, and it is preferable that the shrinkage rate of the adhesive be less than 15%.
    • 光学信息介质包括彼此粘合的一对光盘,设置在至少一个光盘上的光学记录层以及形成在光学记录层的上侧上的反射层。 光学信息介质还包括用于粘合设置在反射层上的一对光盘的粘合剂,其中粘合剂具有10至80μm的厚度。 保护层设置在反射层的上侧,其中该一对光盘可被保护层粘合。 光记录层,反射层和保护层可以直接依次设置在盘上,而另一个基底层可以插入在这些层之间。 作为粘合剂使用包括反应性固化树脂或热熔性材料的粘合剂,并且粘合剂的收缩率优选小于15%。