Ink jet recording head and method of producing the same
    11.
    发明授权
    Ink jet recording head and method of producing the same 失效
    喷墨记录头及其制造方法

    公开(公告)号:US5589860A

    公开(公告)日:1996-12-31

    申请号:US288056

    申请日:1994-08-10

    摘要: Both a cavity plate and a vibrating plate are made of polyether imide resin, and a polysulfone resin film having a thickness of 3 .mu.m is formed on one or both of the joining faces of the plates. The melt temperature of polysulfone resin is about 190.degree. C., and the heat deformation temperature of polyether imide resin is about 200.degree. C. When the cavity plate and the vibrating plate are contacted with each other through the polysulfone resin films and then heated at 190.degree. C. for one hour, therefore, the polysulfone resin films are fused to become a fused layer so that the plates are firmly joined. Since the heat deformation temperature of the cavity plate is 200.degree. C. which is higher by 10.degree. C. than the melt temperature (190.degree. C.) of the polysulfone resin films, the fusion does not cause ink flow paths of nozzles, etc. to be heat-deformed.

    摘要翻译: 空腔板和振动板均由聚醚酰亚胺树脂制成,并且在板的一个或两个接合面上形成厚度为3μm的聚砜树脂膜。 聚砜树脂的熔融温度约为190℃,聚醚酰亚胺树脂的热变形温度约为200℃。当空腔板和振动板通过聚砜树脂膜相互接触,然后在 190℃1小时,因此聚砜树脂膜熔融成为熔融层,使得板牢固地接合。 由于空腔板的热变形温度为200℃,比聚砜树脂薄膜的熔融温度(190℃)高10℃,熔融不会导致喷嘴的油墨流动等 被热变形。

    Disparity detection circuit for a 2-bit to 4-bit coded signal decoder
    12.
    发明授权
    Disparity detection circuit for a 2-bit to 4-bit coded signal decoder 失效
    2位至4位编码信号解码器的视差检测电路

    公开(公告)号:US5283576A

    公开(公告)日:1994-02-01

    申请号:US876570

    申请日:1992-04-30

    申请人: Takashi Umegaki

    发明人: Takashi Umegaki

    摘要: A disparity detection circuit used in a signal decoder which decodes a 4-bit signal into an original 2-bit main signal and 1-bit service signal, from which the 4-bit signal is coded according to a coding rule which stipulates that an original 2-bit main signal and 1-bit service signal should be coded into a 4-bit signal with 1 additional bit added and with pre-determined disparity carrying, determines whether the 4-bit signal conforms to the coding rule and detects the disparity of the 4-bit signal which is determined as conforming to the coding rule.

    摘要翻译: 信号解码器中使用的视差检测电路,其将4位信号解码为原始2位主信号和1位服务信号,4位信号根据规定原始数据的编码规则进行编码 应将2位主信号和1位服务信号编码为4位信号,增加1个附加位,并具有预先设定的差异载波,确定4位信号是否符合编码规则,并检测到 确定为符合编码规则的4位信号。