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公开(公告)号：US4477918A
公开(公告)日：1984-10-16
申请号：US310854
申请日：1981-10-13
CPC分类号： H03K21/12
摘要： A system for reading out the contents of multiple counters onto a common bus comprising a plurality of synchronous binary counters arranged in a ring with each counter having N corresponding stages each having an output terminal on which appears the contents of the stage, an input terminal, and a clock pulse input terminal, with each stage responsive to a clock pulse supplied to its clock input terminal to transfer the signal logic level on its input terminal to its output terminal and with the output terminals of the stages of a given counter comprising the common bus. Also provided is a clock pulse source for supplying clock pulses to all of the clock input terminals and a switching signal source for generating a switching pulse. A switch associated with each stage is responsive to the switching pulse to connect the output terminal of each stage to the input terminal of the corresponding stage of the next adjacent counter in the ring of counters.
摘要翻译： 一种用于将多个计数器的内容读出到公共总线上的系统，包括以每个计数器排列成环的多个同步二进制计数器，每个计数器具有N个对应级，每个具有一个输出端，出现该级的内容，一个输入端， 和一个时钟脉冲输入端，每个级响应提供给其时钟输入端的时钟脉冲，将其输入端上的信号逻辑电平转移到其输出端，并且给定计数器的级的输出端包括公共端 总线。 还提供了用于向所有时钟输入端提供时钟脉冲的时钟脉冲源和用于产生开关脉冲的开关信号源。 与每个级相关联的开关响应于开关脉冲，以将每个级的输出端子连接到计数器环中的下一个相邻计数器的相应级的输入端子。
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公开(公告)号：US4378570A
公开(公告)日：1983-03-29
申请号：US35616
申请日：1979-05-03
申请人： Stanley S. Brokl
发明人： Stanley S. Brokl
CPC分类号： H04N7/1713
摘要： A jam-resistant receiver for a TV signal in which each vertical sync pulse is replaced by several increasingly-delayed symbols from a pseudo-random number generator. A correlator produces a correlation pulse on receipt of a predetermined one of the symbols. The pulse is used to generate reconstituted vertical sync pulses having the correct phase. If the correlation pulse falls below a threshold value due to interference, the receiver automatically shifts to the use of a different symbol for synchronization.
摘要翻译： 一种用于TV信号的阻塞接收器，其中每个垂直同步脉冲由来自伪随机数发生器的若干越来越多延迟的符号代替。 相关器在接收到预定的一个符号时产生相关脉冲。 该脉冲用于产生具有正确相位的重构的垂直同步脉冲。 如果相关脉冲由于干扰而下降到阈值以下，则接收机自动转移到使用不同的符号进行同步。
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公开(公告)号：US4333107A
公开(公告)日：1982-06-01
申请号：US35771
申请日：1979-05-03
CPC分类号： H04N7/1713
摘要： A jam-resistant TV transmission system including means to transmit a composite video signal in which each vertical sync pulse is replaced by several increasingly-delayed symbols from a pseudo-random number generator. Receiver means includes a correlator which produces a correlation pulse on receipt of a predetermined one of the symbols. The timing of the correlation pulse and the known delay of the predetermined symbol are used to generate reconstituted vertical sync pulses.
摘要翻译： 一种抗干扰电视传输系统，包括用于发送复合视频信号的装置，其中每个垂直同步脉冲被来自伪随机数发生器的若干越来越多延迟的符号代替。 接收器装置包括相关器，其在接收到预定的一个符号时产生相关脉冲。 使用相关脉冲的定时和预定符号的已知延迟来产生重构的垂直同步脉冲。
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