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    • 62. 发明授权
    • Digital key telephone set and digital key telephone system
    • 数字钥匙电话机和数字电话系统
    • US06807261B2
    • 2004-10-19
    • US09939757
    • 2001-08-28
    • Toshiaki TakahashiToshiaki TanakaTakeshi Horiuchi
    • Toshiaki TakahashiToshiaki TanakaTakeshi Horiuchi
    • H04M100
    • H04M9/002H04L7/044
    • A clock generating circuit generates a clock of a rate corresponding to a Dch rate in response to a specification from the exterior. A counting circuit detects completion of reception of one frame by counting the clock number up to “11” at timing at which a start bit detecting circuit detects a start bit in a serial signal. An S/P converting circuit fetches a serial Dch signal bit by bit in synchronism with the clock, outputs the latest fetched 10 bits in a parallel form and latches eight bits of a real data portion among the output data into a latch circuit at the time when reception of one frame is completed. In parallel with the above operation, a parity calculating circuit and flag/interruption generating circuit set various flags and generate a reception completion interruption.
    • 时钟发生电路响应于来自外部的规格,生成对应于Dch速率的速率的时钟。 在起始位检测电路检测到串行信号中的起始位的定时,计数电路通过对时钟数高达“11”来检测一帧的接收完成。 S / P转换电路与时钟同步地逐行取出串行Dch信号,以并行形式输出最新提取的10位,并将输出数据中的8位实数数据部分锁存在锁存电路中 当一帧的接收完成时。 与上述操作并行,奇偶校验计算电路和标志/中断产生电路设置各种标志并产生接收完成中断。
    • 70. 发明授权
    • Heat-sensitive recording material
    • 热敏记录材料
    • US5378674A
    • 1995-01-03
    • US216379
    • 1994-03-23
    • Norio KobayashiToshiaki TakahashiMasahiro MakinoMasaaki Hosoda
    • Norio KobayashiToshiaki TakahashiMasahiro MakinoMasaaki Hosoda
    • B41M5/30B41M5/333B41M5/337B41M5/28
    • B41M5/3336B41M5/3335B41M5/3375
    • A heat-sensitive recording material comprises a heat-sensitive color forming layer which is formed on a supporter and contains a colorless or light color leuco dyestuff as a color forming substance, a developer which develops color of the leuco dyestuff by reaction with it when heated and a sensitizer. The developer is 2,4'-dihydroxydiphenylsulfone having purity of 97 weight % or more and prepared by washing and drying crystal which is obtained by dissolving crude 2,4'-dihydroxydiphenylsulfone in an alcohol having 1 to 4 carbon atoms or in a mixture of an alcohol having 1 to 4 carbon atoms and water by heating and then cooling the solution or partially removing the solvent from the solution by distillation. The heat-sensitive recording material has excellent properties, such as reduced fog and excellent image preservation (weatherability).
    • 热敏记录材料包括形成在支持体上并含有无色或浅色无色染料作为成色物质的热敏成色层,当加热时与其反应而使无色染料显色的显色剂 和敏化剂。 显影剂是纯度为97重量%以上的2,4'-二羟基二苯基砜,其通过将粗制的2,4'-二羟基二苯基砜溶解在碳原子数为1〜4的醇中而得到的结晶洗涤干燥, 具有1至4个碳原子的醇和水,然后通过加热然后冷却溶液或通过蒸馏部分地从溶液中除去溶剂。 热敏记录材料具有优异的性能,例如减少雾度和优异的图像保存(耐候性)。