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公开(公告)号:US3900834A
公开(公告)日:1975-08-19
申请号:US28657572
申请日:1972-09-05
Applicant: BUNKER RAMO
Inventor: CASEY RICHARD C , DUGGAN ROBERT J , GROSKY STEPHEN A , JEN DIXSON TEH-CHAO , SERRA JOHN J , WHITEHEAD DONALD SHAFFER , BOYCE THOMAS E
CPC classification number: G06Q40/04 , G06F17/30345
Abstract: 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.
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公开(公告)号:US3599177A
公开(公告)日:1971-08-10
申请号:US3599177D
申请日:1968-09-16
Applicant: BUNKER RAMO
Inventor: JEN DIXSON TEH-CHAO , GROSKY STEPHEN A , DUGGAN ROBERT J
CPC classification number: G09G1/00
Abstract: A system for storing characters of information in a selected form in a storage means which has a plurality of character positions. Characters are recorded in each position in a multibit code and means are provided for storing an additional control bit in each of the character positions. A selected form may be stored in the storage means by storing bits in selected ones of the control bit positions in accordance with a predetermined logical pattern. The state of each control bit is detected and utilized for controlling the field in the storage means in which new characters applied to the system are stored. In particular, the control bits may be utilized to identify tab positions in a particular form or to effect the protection of fixed field characters.
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公开(公告)号:US3368028A
公开(公告)日:1968-02-06
申请号:US30719063
申请日:1963-09-06
Applicant: BUNKER RAMO
Inventor: RICHARD WINDELS , DUGGAN ROBERT J
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公开(公告)号:US3656148A
公开(公告)日:1972-04-11
申请号:US3656148D
申请日:1969-02-25
Applicant: BUNKER RAMO
Inventor: BELCHER RICHMOND D , DUGGAN ROBERT J , ELLIS GEORGE R , ESSLINGER ROBERT H , GOODYEAR W FREDERICK , MARSHALL JOSEPH C , MASONE THOMAS R
Abstract: A system for receiving queries from data entry means at a plurality of remote stations and for sending replies from a central station having data storage and data processing means to the appropriate remote station to be displayed on a data presentation means such as a cathode ray tube. The queries at the remote stations are interrogated by circuitry at an intermediate station. A recirculating memory means is provided at the intermediate station for assembling the query messages. A complete query is transmitted from the intermediate station to the central station where a reply message corresponding to the query is developed. The reply is transmitted back to the intermediate station and stored in a recirculating memory. The reply message is periodically sent as a succession of signals to the appropriate remote station to control the display on the data presentation means. Periodically, the central station interrogates all queries stored at the intermediate station, including those for which replies have previously been generated, and generates new replies in response to these queries. The information display at the remote station is in this manner maintained current.
Abstract translation: 一种用于在多个远程站处从数据输入装置接收查询的系统,并用于从具有数据存储和数据处理装置的中心站发送来自适当的远程站的答复显示在诸如阴极射线管的数据呈现装置上。 远程站的查询由中间站的电路询问。 在中间站处设置有用于组装查询消息的再循环存储装置。 完整的查询从中间站发送到中心站,在那里开发与查询相对应的回复消息。 该回复被传送回中间站并存储在循环存储器中。 周期性地将响应消息作为一系列信号发送到适当的远程站以控制数据呈现装置上的显示。 定期地,中央站询问存储在中间站的所有查询,包括先前已生成回复的查询,并响应于这些查询生成新的回复。 远程站的信息显示以这种方式保持当前状态。
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公开(公告)号:US3500327A
公开(公告)日:1970-03-10
申请号:US3500327D
申请日:1965-06-01
Applicant: BUNKER RAMO
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