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    • 2. 发明授权
    • Filament recoating apparatus and method
    • 长丝重涂装置及方法
    • US06783597B2
    • 2004-08-31
    • US09805473
    • 2001-03-13
    • Bryon James CronkDavid L. KordeckiChristopher B. Walker, Jr.Brian John Gates
    • Bryon James CronkDavid L. KordeckiChristopher B. Walker, Jr.Brian John Gates
    • B05C500
    • C03C25/143Y10S118/22
    • A filament coating apparatus comprising a frame for releasably securing a filament, and a carriage mounted on the frame to oscillate between a first position and a second position. There is a first filament holding fixture mounted on the carriage and a second filament holding fixture also mounted on the carriage in axial alignment with the first filament holding fixture to secure a measured filament portion, preferably of an optical fiber, including a bare portion thereof, located inside a first boundary and a second boundary, between the first filament holding fixture and the second filament holding fixture. At least one spray head is attached to the frame at the first position with at least one radiation source attached to the frame at the second position. The measured filament portion moves between the spray head and the radiation source, during oscillation of the carriage between the first position and the second position to place the bare portion to receive a curable coating composition from the spray head, for application from the first boundary to the second boundary, and thereafter to cure the curable coating by exposure to radiation from the radiation source.
    • 一种长丝涂覆装置,包括用于可释放地固定细丝的框架和安装在框架上的滑架,以在第一位置和第二位置之间摆动。 安装在滑架上的第一灯丝固定夹具和第二灯丝保持夹具,其也安装在滑架上,与第一灯丝保持夹具轴向对准,以固定测量的细丝部分,优选地包括光纤的裸露部分, 位于第一边缘和第二边界之间,位于第一细丝保持固定装置和第二细丝保持固定装置之间。 至少一个喷头在第一位置处附接到框架,其中至少一个辐射源在第二位置处附接到框架。 测量的细丝部分在喷头和辐射源之间移动,在第一位置和第二位置之间的滑架振荡期间,以将裸露部分从喷头接收可固化涂层组合物,以从第一边界施加到 第二边界,然后通过暴露于来自辐射源的辐射固化可固化涂层。
    • 6. 发明授权
    • Forward error correction system
    • 前向纠错系统
    • US4908827A
    • 1990-03-13
    • US77800
    • 1987-07-27
    • John Gates
    • John Gates
    • H03M13/23H04L1/00H04L7/04H04L25/49
    • H04L1/0059H03M13/23H04L1/0069H04L25/4906H04L7/048
    • The system first incorporates an encoder which utilizes a 1/2 rate convolutional encoder to encode the data and a supplementary coding system for converting the 1/2 rate coded data to a nominal 3/4 rate. Thereafter, in order that the encoded data fits within the fixed frame length which has been adopted as a standard for the present TDMA transmission system, a portion of the excess data in each frame of encoded data put out by the encoder must be deleted or punched out. These bits are spaced throughout the frame to minimize the effect of the punchout routine.On the decoding side of the system, bits must be reinserted in the same place where they were deleted in the encoder. Because these bits were removed at the encoder, the decoder cannot possibly know what they were. It is not important to know what they were, but rather when in the received bit stream they would have occurred. In these places, place holding bits that are marked as such are inserted. This function is achieved by arbitrarily inserting either 1's or 0's in the bit stream, and providing an accompanying bit stream which incorporates flag bits for marking the existence of these place holding bits. Later processing in the decoder then simply treats these bits as place holders. That is, they do not add information that can help correct errors, nor do they cause errors.
    • 该系统首先结合使用1/2速率卷积编码器对数据进行编码的编码器和用于将1/2速率编码数据转换为标称3/4速率的辅助编码系统。 此后,为了使编码数据适合作为本TDMA传输系统的标准的固定帧长度,由编码器输出的编码数据的每帧中的过量数据的一部分必须被删除或冲孔 出来 这些位在整个框架中间隔开,以最小化冲击程序的影响。 在系统的解码端,位必须重新插入到编码器中被删除的位置。 因为这些位在编码器处被去除,解码器不可能知道它们是什么。 知道他们是什么并不重要,而是在收到的比特流中会发生什么。 在这些位置,插入标有位的位置。 该功能是通过在位流中任意插入1或0来实现的,并提供一个伴随的位流,其中包含用于标记这些位置保持位的存在的标志位。 解码器中稍后的处理就简单地将这些位视为占位符。 也就是说,他们不添加可以帮助纠正错误的信息,也不会导致错误。