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    • 25. 发明授权
    • Synchronous clock regenerator for binary serial data signals
    • 用于二进制串行数据信号的同步时钟再生器
    • US4415984A
    • 1983-11-15
    • US162806
    • 1980-06-25
    • Dana A. GrygerDaniel P. Drogichen
    • Dana A. GrygerDaniel P. Drogichen
    • H04L7/00H04L7/033H04L7/04G06F7/28G06F5/06
    • H04L7/0338H04L7/0083H04L7/044
    • Disclosed is a synchronous clock regenerator for generating a clock signal which can be reliably used to strobe a binary serial data signal. The incoming raw clock signal is fed into a tapped delay line which generates multiple delayed versions of the raw clock signal. Upon detection of a framing transition on the incoming data signal, the raw clock signal and multiple delayed clock signals are latched. The latched values are used to address a read only memory (ROM), the ROM containing codes specifying which, if any, of the set including the raw clock signal and multiple delayed clock signals provides the optimum phase to strobe the incoming data signal. The code read from the ROM is decoded, latched and fed to a l-of-n selector circuit. Thereafter, and until the next framing transition occurs, each raw clock pulse received is replaced by the corresponding one of the set of that raw clock pulse and the generated delayed versions of that raw clock pulse as selected by the previously latched inputs to the l-of-n selector.
    • 公开了一种用于产生可靠地用于选通二进制串行数据信号的时钟信号的同步时钟再生器。 输入的原始时钟信号被馈送到产生原始时钟信号的多个延迟版本的抽头延迟线。 在检测到输入数据信号上的成帧转换时,原始时钟信号和多个延迟的时钟信号被锁存。 锁存的值用于寻址只读存储器(ROM),ROM包含指定包括原始时钟信号和多个延迟时钟信号的集合(如果有的话)的代码提供了选通输入数据信号的最佳相位。 从ROM读取的代码被解码,锁存并馈送到n位选择器电路。 此后,直到下一个成帧转换发生,接收到的每个原始时钟脉冲被该原始时钟脉冲的一组中的相应一个所代替,并且该原始时钟脉冲的生成的延迟版本被先前锁存的输入选择为1- 的n选择器。
    • 26. 发明授权
    • Arrangement for branching an information flow
    • 分支信息流的排列
    • US4222101A
    • 1980-09-09
    • US892494
    • 1978-04-03
    • Oleg AvsanNils K. Isaksson
    • Oleg AvsanNils K. Isaksson
    • G06F9/22G06F9/28G06F9/32G06F9/38G06F13/00G06F7/28
    • G06F9/28
    • Digital words of a pipelined incoming information flow are branched into a number of outgoing information flow branches. The term "pipelined" means that the flow is transferred through memory means whose activation inputs are controlled by clock pulses, the memory means arranged successively with reference to the flow direction being coincidently activated to receive successive words of the flow. A digital branching information flow for ordering into which of the outgoing branches the incoming words have to be branched is generated in step with the incoming flow. The basis for each outgoing branch is obtained from the output of a branching register to which the incoming flow is supplied. The branching registers are activated by the clock pulses, but if an outgoing branch contains only a part of the incoming flow, an activation locking device is used in order to block the clock pulses in dependence on the respective branching information. The branching information flow may be transferred to the locking devices through branching information registers whose activation inputs may also be controlled by locking devices. A branching information register is, however, not to be controlled by the locking device connected to its own output.
    • 流水线传入信息流的数字字被分支为多个输出信息流分支。 术语“流水线”是指通过存储装置传送流程,其存储装置的激活输入由时钟脉冲控制,存储器装置相对于流动方向被连续排列,被一致地激活以接收流的连续字。 一个数字分支信息流,用于排序输入分支中的哪一个输入字必须被分支,与进入流一起生成。 每个输出分支的基础是从提供输入流的分支寄存器的输出获得的。 分支寄存器被时钟脉冲激活,但是如果输出分支仅包含输入流的一部分,则使用激活锁定装置,以便根据相应的分支信息来阻塞时钟脉冲。 分支信息流可以通过分支信息寄存器传送到锁定装置,其激活输入也可以由锁定装置控制。 但是,分支信息寄存器不受连接到其自身输出的锁定装置的控制。
    • 28. 发明授权
    • One-pass general associative search processor
    • 单程通用关联搜索处理器
    • US4099242A
    • 1978-07-04
    • US738392
    • 1976-11-03
    • George B. HoustonRoger H. Simonsen
    • George B. HoustonRoger H. Simonsen
    • G06F17/30G06F7/28G06F7/34G11C15/00
    • G06F17/30985Y10S707/99932
    • An apparatus for searching stored data in accordance wit a search specification established by a digital computer. The data is stored in data tracks which form the storing medium on a memory device. The data is in the form of logical records, each record comprising a number of data fields. The search specification designates one or more of the data fields as range fields and may designate one field as a value field. The search specification also includes range field values and range field operators for each designated range field, and a value field operator for the designated value field. The apparatus includes a first processor, which comprises a variable number of first subprocessors equal to the number of data tracks simultaneously applied to the input of the apparatus. Each first subprocessor is operative to apply the range field values and operators against the designated range fields, and may also apply them against the designated value field, of each successive record in a data track. This process is referred to as range testing and results in the identification of those logical records which satisfy all the range tests. The designated value field is recognized during range testing and its content is stored. A second processor applies the value operator against the designated value field previously recognized and stored during range testing, and determines which value field, and hence which record, best satisfies the value test among those presented simultaneously at its input. The results of the second processor are then used to update the indication of the one record best satisfying both the range and value tests of all the records previously presented to the apparatus.
    • 一种用于根据由数字计算机建立的搜索规范搜索存储的数据的装置。 将数据存储在形成存储介质的数据轨道上。 数据是逻辑记录的形式,每个记录包括多个数据字段。 搜索规范将一个或多个数据字段指定为范围字段,并且可以将一个字段指定为值字段。 搜索规范还包括每个指定范围字段的范围字段值和范围字段操作符,以及指定值字段的值字段操作符。 该装置包括第一处理器,其包括等于同时施加到装置的输入的数据轨道的数量的可变数量的第一子处理器。 每个第一子处理器可操作以针对指定范围字段应用范围字段值和操作符,并且也可以将它们应用于数据轨道中每个连续记录的指定值字段。 该过程被称为范围测试,并导致满足所有范围测试的逻辑记录的识别。 在范围测试期间识别指定值字段,并存储其内容。 第二个处理器在范围测试期间将值操作符应用于先前识别和存储的指定值字段,并确定哪个值字段以及因此哪个记录在其输入端同时呈现的那些记录中最符合值测试。 然后,第二处理器的结果用于更新一个记录的指示,该记录最好地满足先前提供给设备的所有记录的范围和值测试。
    • 30. 发明授权
    • Memory update apparatus utilizing chain addressing
    • 记忆更新装置利用链条寻址
    • US3900834A
    • 1975-08-19
    • US28657572
    • 1972-09-05
    • BUNKER RAMO
    • CASEY RICHARD CDUGGAN ROBERT JGROSKY STEPHEN AJEN DIXSON TEH-CHAOSERRA JOHN JWHITEHEAD DONALD SHAFFERBOYCE THOMAS E
    • G06F12/00G06F17/30G06Q40/04G06F7/28G06F13/00G06F15/40
    • G06Q40/04G06F17/30345
    • This invention relates to a system in which a control computer supplies rapidly changing information concerning a large plurality of data items to a plurality of programmable control units for updating information contained in the memory of each unit. Each programmable control unit memory may contain information relating to a plurality of different items and information relating to a given item may be stored in a number of different locations within the memory, there being no predetermined relationship between these locations. The control computer sends a like update message to the programmable control units for updating of information relating to a particular item at all locations in each programmable control unit memory at which it appears. This is effected by use of a common address table provided in each memory, which table has an entry for each of the item storing locations in the memory. Each entry in the table contains the address of the corresponding item-storing memory location and a chain address to another entry in the table for a location at which information relating to the same item is stored. An update message relating to a given item contains information permitting a first entry in the table for the given item to be accessed. The address in the accessed entry is utilized to route the information in the message to a location in memory which is to be updated while the chain address in the accessed entry is utilized to access the table entry for another memory location containing information relating to the item. Succeeding table entries in the chain are utilized to control memory updates until all memory locations containing information relating to the item have been updated. Where the update message contains more than one field of information, the above-described procedure may be repeated for each received field. The table may also contain an indication of the type of information stored for the item at each memory location and this information-type indication may be utilized to determine whether information in a given input field is to be utilized for updati;ng information at a given location for the item, and, in some instances, to control the updating. The system also provides a capability for changing the items concerning which information is stored at a given location. When this occurs, appropriate changes are made in the table entries for the memory location and the chains for the items involved are modified.