Information storage arrangements
阅读：400发布：2022-01-25
专利汇可以提供Information storage arrangements专利检索，专利查询，专利分析的服务。并且Two storage tubes, one used as a ''''permanent'''' data item store, the other as a display tube, share common power supplies and addressing arrangements. The two tubes are dark trace tubes and the beam current supply is arranged to produce writing and reading pulses of beam current which are delivered to the appropriate tube for (a) inserting new data items into the store tube and (b) for reading an item from the store tube and writing a resultant display on the display tube. The scanning of the store tube is cyclic and the data read from the store tube may produce a different display image.，下面是Information storage arrangements专利的具体信息内容。
1. An information storage and display arrangement including a data item storage tube having a plurality of data item storage locations each capable of storing indefinitely an item of data; a data item display tube having a plurality of data item display locations corresponding respectively to the locations of the storage tube, each display location being capable of displaying an item of data impermanently; and control means connected to both tubes including a common location addressing system arranged to select respectively corresponding locations in both tubes concurrently, means for producing beam current control signals, and switching means connected to said beam current control signal producing means and arranged to apply a beam current control signal selectively to only one of the tubes to permit a predetermined beam current to flow to that location specified by said addressing system only in the selected tube, the predetermined beam current permitted to flow being effective to read out a data item from or to write a data item into the specified location in dependence upon the control signal, the control means being arranged to operate said switching means and said control signal producing means to read out a data item from the specified location in said storage tube and to write a data item into the corresponding specified location of said display tube in dependence upon the significance of the data item read out.
2. An arrangement as claimed in claim 1 in which the control means includes data item receiving means arranged to receive a data item read out from the storage tube and means responsive to the received data item to control said beam current control signaL producing means to produce a writing beam current to write a data item into the corresponding location of the display tube.
3. An arrangement as claimed in claim 2 in which an information channel is connected to said receiving means, the receiving means also being arranged to receive input information items from the channel.
4. An arrangement as claimed in claim 3 in which the control means is arranged to condition the beam current control signal producing means and the switching means to apply a writing beam current to said first tube and to interrupt the cyclic sequence to write an input item into said storage tube.
5. An arrangement as claimed in claim 1 in which the addressing system includes a register and display control means arranged to select a particular location address, the display control means being connected to the control means to condition the beam current control signal producing means to produce a modified drive current to modify a data item displayed on the display tube at said particular location.
6. An arrangement as claimed in claim 5 in which the beam current control signal producing arrangement is further conditioned to produce a modified drive current to modify a data item stored in said storage tube at said particular location.
7. An arrangement as claimed in claim 1 in which the control means further includes scanning sequence control means arranged to cause the addressing means to scan all the locations of a tube in a regular cyclic sequence of steps.
8. An arrangement as claimed in claim 7 in which said scanning sequence control means is further arranged to repeatedly regenerate data items displayed on the display tube.
9. An arrangement as claimed in claim 8 in which the control means includes means for interrupting the regular cyclic sequence.
10. An arrangement as claimed in claim 9 in which the control means is arranged to condition the beam current control signal producing means and the switching means to apply a reading beam current to said storage tube during a first part of each step and to apply a writing beam current to said display tube during a second part of each step.
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