Power source
    121.
    发明授权
    Power source 失效
    能量源

    公开(公告)号:US5225972A

    公开(公告)日:1993-07-06

    申请号:US848893

    申请日:1992-03-10

    申请人: Hiroshi Sakamoto

    发明人: Hiroshi Sakamoto

    摘要: A power source driving an electrical device includes a DC power supply providing a rectified and smoothed DC voltage from an AC main power, a self-oscillator energized by the DC power supply to generate a high frequency voltage, and a transformer which provides an output voltage from the high frequency voltage for driving a load circuit of the device. The characterizing feature of the power source resides in that the self-oscillator comprises a class C amplifier and includes a bias stabilizing circuit which provides a stabilized bias to the class C amplifier for assuring constant and optimum operation irrespective of possible variations in the supply voltage as well as load variations.

    摘要翻译: 驱动电气设备的电源包括直流电源,其提供来自AC主电源的整流和平滑的DC电压,由DC电源供电以产生高频电压的自振荡器,以及提供输出电压的变压器 从用于驱动装置的负载电路的高频电压。 电源的特征在于,自振荡器包括C类放大器,并且包括偏置稳定电路,其向C类放大器提供稳定的偏置,以确保恒定和最佳的操作,而与电源电压的可能变化无关,如 以及负载变化。

    Switching power source device having energy recovery
    123.
    发明授权
    Switching power source device having energy recovery 失效
    具有能量回收的开关电源装置

    公开(公告)号:US5019770A

    公开(公告)日:1991-05-28

    申请号:US426572

    申请日:1989-10-24

    IPC分类号: H02M3/28 H02M7/48

    CPC分类号: H02M3/28 H02M7/538

    摘要: A switching power source comprising a pair of output terminals, a first switch element, a reactor and a filter which are connected to each other in series between one of the terminals of an input DC power source and one of the output terminals; a second switch element connected between a connecting node for the reactor and the filter and the other terminal of the input DC power source; and means for causing energy stored in the reactor to be fed back for regeneration to the input DC power source when the switch elements are turned off, wheein the switching power source is characterized by that the first and second switch elements are alternatively actuated for ON-OFF actions at a prescribed time ratio.

    摘要翻译: 一种开关电源,包括一对输出端子,第一开关元件,电抗器和滤波器,它们串联连接在输入直流电源的一个端子和其中一个输出端子之间; 连接在所述电抗器的连接节点和所述滤波器之间的第二开关元件和所述输入直流电源的另一端子; 以及当所述开关元件关闭时,使所述反应器中存储的能量反馈以供再生到所述输入直流电源的装置,所述开关电源的特征在于,所述第一和第二开关元件被交替地致动以进行ON- OFF动作。

    Thermosensitive recording material
    124.
    发明授权
    Thermosensitive recording material 失效
    热敏记录材料

    公开(公告)号:US4980337A

    公开(公告)日:1990-12-25

    申请号:US381994

    申请日:1989-07-17

    CPC分类号: B41M5/44 B41M5/41

    摘要: A thermosensitive recording material is disclosed, which comprises (a) a heat insulating support having a foamed portion with minute voids therein, (b) an undercoat layer formed on the heat insulating support, comprising as the main component a film-forming polymeric material in an amount ranging from more than 50 wt. % to 100 wt. % of the entire weight of the undercoat layer, and (c) a thermosensitive coloring layer formed on the undercoat layer, comprising a leuco dye and a color developer for inducing color formation in the leuco dye upon application of heat thereto.

    摘要翻译: 公开了一种热敏记录材料,其包括(a)具有其中具有微小空隙的发泡部分的隔热支撑体,(b)形成在绝热支撑体上的底涂层,其包含作为主要成分的成膜聚合物材料 数量范围超过50wt。 %至100wt 底涂层整体重量的百分比,(c)形成在底涂层上的热敏着色层,其包含无色染料和用于在加热时在无色染料中诱导着色形成的显色剂。

    Switching power source device
    125.
    发明授权
    Switching power source device 失效
    开关电源设备

    公开(公告)号:US4926302A

    公开(公告)日:1990-05-15

    申请号:US187288

    申请日:1988-04-28

    摘要: A switching power source device provides a desired AC/DC output by producing a pulse width-modulated waveform through ON-OFF control of a pair or pairs of switching elements connected in series with an input power source, eliminating high-frequency components of the pulse width-modulated waveform with a smoothing choke. The switching power source device is configured so that the input power source will not be short-circuited and consequently suffer a voltage and/or current surge, even when both switching elements in the pair assume the ON status at the same time by dividing the smoothing choke into two portions. The two portions of the smoothing choke are connected in series with the input power source when the switching elements in the pair assume the ON status at the same time.

    摘要翻译: 开关电源装置通过与输入电源串联连接的一对或两对开关元件的ON-OFF控制产生脉冲宽度调制波形来提供期望的AC / DC输出,消除脉冲的高频分量 具有平滑扼流圈的宽度调制波形。 开关电源装置被配置为使得输入电源不会短路并且因此遭受电压和/或电流浪涌,即使当该对中的两个开关元件同时处于接通状态时,通过将平滑 窒息两部分。 当该对中的开关元件同时处于ON状态时,平滑扼流圈的两部分与输入电源串联连接。

    Copying machine
    126.
    发明授权
    Copying machine 失效
    复印机

    公开(公告)号:US4772954A

    公开(公告)日:1988-09-20

    申请号:US706886

    申请日:1985-03-01

    IPC分类号: H04N1/107 H04N1/207 H04N1/00

    摘要: A small-size copying machine has an image sensor and a print head for printing image information or visible data on copying paper. The copying machine is moved over an original document to read the visible data with the image sensor, and the visible data read by the image sensor is printed by the print head on the copying paper. The reading of the visible data with the image sensor is synchronized with the printing of the visible data onto the copying paper with the print head by fixing an end of the copying paper discharged from the copying machine and moving the copying machine with respect to the original document. The distance from the position where the visible data of the original document is read to an outlet slit for discharging the copying paper therethrough is equal to the distance from the position where the visible data is printed by the print head on the copying machine to the outlet slit, so that the data printed on the copying paper and the image of the original document will be overlapped. The copying machine may have a tapered body portion with a reading slit defined therein for facilitating the reading of the original document with the copying machine. The copying machine may have an inclined bottom panel for allowing the copying machine to be moved easily over the original document. The copying machine may also have on sides thereof markings for indicating a width and a position where the original document is to be copied.

    摘要翻译: 小型复印机具有用于在复印纸上打印图像信息或可视数据的图像传感器和打印头。 将复印机移动到原始文档上以用图像传感器读取可见数据,并且将图像传感器读取的可见数据由打印头打印在复印纸上。 使用图像传感器读取可视数据与通过固定从复印机排出的复印纸的一端将可视数据打印到具有打印头的复印纸上同步,并使复印机相对于原稿 文件。 从原稿的可视数据读取的位置与从复印纸排出的出口狭缝的距离等于从复印机上的打印头将可视数据打印到出口的距离 使打印在复印纸上的数据和原稿的图像重叠。 复印机可以具有锥形主体部分,其中限定有读取狭缝,以便于用复印机读取原稿。 复印机可以具有倾斜的底板,用于允许复印机容易地移动到原稿上。 复印机还可以具有用于指示要复制原始文档的宽度和位置的标记。

    TV optical effect generating system
    127.
    发明授权
    TV optical effect generating system 失效
    电视光学效应发生系统

    公开(公告)号:US4769707A

    公开(公告)日:1988-09-06

    申请号:US52625

    申请日:1987-05-20

    CPC分类号: H04N5/272

    摘要: A key signal such as a TV signal or the like is provided to a liquid crystal TV panel, by which an image of a desired shape is displayed on the display screen of the liquid crystal TV panel at a position where an optical effect is intended to be produced. Light from a light source is applied to the liquid crystal TV panel, transmitted or reflected light therefrom is incident to an optical filter, and the image of transmitted light therefrom is picked up by a TV camera. The video output of the TV camera is mixed, by a video mixer, with a video signal of the image to be added with the optical effect.

    摘要翻译: 向液晶电视面板提供诸如TV信号等的关键信号,通过该液晶电视面板将期望形状的图像显示在液晶电视面板的显示屏幕上,在光学效果旨在的位置 生产。 来自光源的光被施加到液晶电视面板,其透射或反射光入射到滤光器,并且其中透射的光的图像由电视摄像机拾取。 电视摄像机的视频输出通过视频混合器与图像的视频信号混合以加入光学效果。

    High toughness ceramics and process for the preparation thereof
    128.
    发明授权
    High toughness ceramics and process for the preparation thereof 失效
    高韧性陶瓷及其制备方法

    公开(公告)号:US4729972A

    公开(公告)日:1988-03-08

    申请号:US816303

    申请日:1986-01-06

    CPC分类号: C04B35/565 C04B35/575

    摘要: The present invention relates to a sintered product containing silicon carbide as a main component which comprises a phase(a) containing at least one metal selected from among Al, Sc, Y and rare earth elements and oxygen, a particle phase(b) comprising at least one metal carbide selected from among carbides of Ti, Zr, Hf, Va, Nb, Ta, W and the like, a composite particle phase(c) comprising said phase(a) and said phase(b) surrounding the phase(a) and silicon carbide matrix(d) in which the above phase(a), (b) and (c) are dispersed.The silicon carbide sintered product of the present invention exhibits a remarkably high strength and a remarkably high toughness which have not been attained up to this time, so that it can form various heat-resistant structural materials having a high reliability.

    摘要翻译: 本发明涉及含有碳化硅作为主要成分的烧结产品,该烧结产品包括含有选自Al,Sc,Y和稀土元素和氧中的至少一种金属的相(a),含有 选自Ti,Zr,Hf,Va,Nb,Ta,W等的碳化物中的至少一种金属碳化物,包含所述相(a)和所述相(b)的复合粒子相(c) )和上述相(a),(b)和(c)分散的碳化硅基体(d)。 本发明的碳化硅烧结体在此之前显示出非常高的强度和显着的高韧性,从而可以形成具有高可靠性的各种耐热结构材料。

    Multiple scanning type television receiver
    129.
    发明授权
    Multiple scanning type television receiver 失效
    多重扫描型电视接收机

    公开(公告)号:US4679091A

    公开(公告)日:1987-07-07

    申请号:US786249

    申请日:1985-10-10

    IPC分类号: H04N3/27 H04N9/64 H04N5/68

    CPC分类号: H04N3/27 H04N9/641

    摘要: A television receiver having a video signal receiving circuit for receiving a video signal, a vertical synchronizing signal and a horizontal synchronizing signal, a signal processing circuit for supplying the video signal to a cathode ray tube, a vertical deflection circuit for supplying a vertical deflection signal to the cathode ray tube in response to the vertical synchronizing signal, a horizontal deflection circuit for supplying a horizontal deflection signal to the cathode ray tube in response to the horizontal synchronizing signal, a frequency detector circuit connected to the video signal receiving circuit for detecting the frequency of the horizontal synchronizing signal and deriving a control signal in response thereto and a control circuit connected between the frequency detector circuit and the horizontal deflection circuit for controlling the latter in response to the control signal from the former. In this case, the horizontal deflection circuit includes a circuit for changing the duty cycle of a horizontal drive pulse such that the duty cycle increases when the horizontal frequency becomes higher.

    摘要翻译: 一种具有用于接收视频信号的视频信号接收电路,垂直同步信号和水平同步信号的电视接收机,用于向阴极射线管提供视频信号的信号处理电路,用于提供垂直偏转信号的垂直偏转电路 响应于垂直同步信号将阴极射线管施加到阴极射线管;水平偏转电路,用于响应水平同步信号向水平偏转信号提供水平偏转信号;频率检测器电路,连接到视频信号接收电路,用于检测 频率检测电路和水平偏转电路之间的控制电路,用于响应来自前者的控制信号来控制水平同步信号,并导出控制信号。 在这种情况下,水平偏转电路包括用于改变水平驱动脉冲的占空比的电路,使得在水平频率变高时占空比增加。