Portable electronic memorandum device

Abstract

A portable electronic memorandum device has a memory for storing character data items. When a switch is operated, all the address areas of the memory are designated so as to sequentially read out all the character data items stored therein. All the character data items are then sequentially displayed on a display. After all the character data items stored in all the address areas are sequentially displayed on the display, the address of the memory is updated by the operation of switches, thus performing an edit operation of the character data items.

What is claimed is: 
     
       1. A portable electronic memorandum device, comprising: character data item input means for inputting character data items including at least character data;   character data item-storing means for storing the character data items inputted by said character data item input means;   operation switching means for sequentially designating the character data items in the character data item-storing means, and for sequentially reading out the character data items stored in the character data item-storing means in response to a switching operation;   optical display means for sequentially displaying the character data items sequentially read out by said operating switching means; .[.empty.].   display control means (.Iadd.a) .Iaddend.for enabling a last character data item stored in said character data item-storing means to be displayed on said optical display means when operating said operation switching means .[.and.]. (.Iadd.b) .Iaddend.for thereafter, when operating said operation switching means, causing .[.a.]. display .Iadd.of indicia on said optical display means .Iaddend.representing .[.a data empty state to be indicated on said optical display means when operating said operation switching means; and first character data display control means.]. .Iadd.that the last character data item has been read out, and (c) .Iaddend.for permitting a first character data item stored in said data item-storing means to be displayed on said optical .[.dispaly.]. .Iadd.display .Iaddend.means when operating said operation switching means after .[.the data empty state is indicated.]. .Iadd.said indicia have been displayed .Iaddend.by operation of said .[.empty.]. display control means.   
     
     
       2. A device according to claim 1, wherein said optical display means comprises means for displaying the number of character data items stored in said character data item-storing means. 
     
     
       3. A device according to claim 1, wherein said optical display means comprises means for displaying the number of character data items which can be stored in said character data item-storing means. 
     
     
       4. A device according to claim 1, wherein said character data item storing means includes means for storing the character data items in alphabetical order. 
     
     
       5. A device according to claim 1, comprising input control means for enabling said character data item input means to input a new character data item .[.when the data empty state is indicated.]. .Iadd.upon display of said indicia .Iaddend.by operation of said .[.empty.]. display control means. 
     
     
       6. A device according to claim 5, comprising means for causing .[.the data empty state display to be indicated.]. .Iadd.said indicia to be displayed .Iaddend.again, after the new character data item has been input by use of said imput control means. 
     
     
       7. A device according to claim 1, wherein said .[.empty.]. display control means includes means for enabling said optical display means to display hyphens .[.to indicate the data empty state.]. .Iadd.as said indicia to represent that the last character data item has been recalled.Iaddend.. 
     
     
       8. A device according to claim 1, comprising edit means for re-storing the plurality of the character data items which have been stored in said character data item-storing means, and a charcter data item newly inputted, in an order according to a predetermined format. 
     
     
       9. A device according to claim 8, comprising means for indicating that said edit means is operating. 
     
     
       10. A device according to claim 8, wherein said edit means comprises means for sorting and re-storing in alphabetical order, the plurality of character data items stored in said character data item-storing means and the character data item newly inputted. 
     
     
       11. A portable electronic memorandum device, comprising: .[.characteristic.]. .Iadd.character .Iaddend.data item input means for inputting character data items including at least character data;   character data item-storing means, having a plurality of address areas, for storing the character data items inputted by said character data item input means, in an order according to as predetermined format .[.and including an address area which is empty of data.].,   operation switching means for sequentially designating the respective address areas in the character data item-storing means, and for sequentially reading out the character data items stored in the designated address areas in response to a switching operation;   optical display means for sequentially displaying the character data items sequentially read out by said operation switching means;   detecting means for detecting .[.if the empty address area is designated after address areas corresponding to.]. .Iadd.that .Iaddend.all character data items stored in the character data item-storing means .[.are.]. .Iadd.have been .Iaddend.designated by operation of said operation switching means;   .[.empty173  display control means for causing .[.a.]. display .Iadd.on said optical means of indicia .Iaddend.representing .[.a data empty state to be indicated on said optical display means.]. .Iadd.that all said stored character data items have been designated.Iaddend., on the basis of an output from said detecting means .[., first character data display control means, and .Iadd..Iaddend.for permitting a first character data item stored in said .Iadd.character .Iaddend.data item-storing means to be displayed on said optical display means when operating said operation switching means after .[.the empty state is indicated.].  .Iadd.said indicia have been displayed .Iaddend.by operation of said .[.empty.]. display control means.   
     
     
       12. A device according to claim 11, wherein said character data item-storing means includes means for storing the character data items in the sequential address areas in alphabetical order. 
     
     
       13. A device according to claim 11, comprising input control means for enabling said character data item input means to input a new character data item .[.when the data empty state is indicated.]. .Iadd.upon display of said indicia .Iaddend.by operation of said .[.empty.]. display control means. 
     
     
       14. A device according to claim 13, comprising means for causing .[.the data empty state display to be indicated.]. .Iadd.said indicia to be displayed .Iaddend.again, after the new character data item has been input by use of said input control means. 
     
     
       15. A device according to claim 11, wherein said .[.empty.]. display control means includes means for enabling said optical display means to display hyphens .[.to indicate the data empty state. .Iadd.as said indicia to represent that all stored character data items have been designated.Iaddend.. 
     
     
       16. A device according to claim 11, comprising edit means for re-storing the plurality of the character data items which have been stored in said character data item-storing means, and a character data item newly inputted, in an order according to said predetermined format. 
     
     
       17. A device according to claim 16, comprising means for indicating that said edit means is operating. 
     
     
       18. A device according to claim 16, wherein said edit means comprises means for sorting and re-storing, in alphabetical order, the plurality of the character data items stored in said character data item-storing means in a character data item newly-inputted. 
     
     
       19. A portable electronic memorandum device, comprising: character data item input means for inputting character data items including at least character data;   character data item-storing means, having a plurality of address areas, for storing the character data items inputted by said character data item input means, in an order according to a predetermined format .[.and including an address area which is empty of data;   operation switching means for sequentially designating the respective address areas in the character data item-storing means, and for sequentially reading out the character data items stored in the designated address areas in response to a switching operation;   optical display means for sequentially displaying the character data items sequentially read out by said operation switching means;   .[.empty.]. display control means (.Iadd.a) .Iaddend.for causing a last character data item stored in said character data item-storing means to be displayed on said optical display means when operating said operation switching means, .[.and.]. .Iadd.(b) .Iaddend.for thererafter .Iadd.when operating said operation switching means .Iaddend.detecting .[.the empty address area.]. .Iadd.that the last character data has been read out .Iaddend.and causing .[.a.]. display .Iadd.of indicia on said optical display means .Iaddend.representing .[.a data empty state to be indicated on said optical display means when operating said operation switching means again; and first character data display control means.]. .Iadd.that the last character data item has been retrieved, and (c) .Iaddend.for permitting a first character data .[.items.]. .Iadd.item .Iaddend.stored in said data item-storing means to be displayed on said optical display means when operating said operation switching means after .[. the data empty state is indicated.]. .Iadd.said indicia have been displayed .Iaddend.by operation of said .[.empty.]. display control means.   
     
     
       20. .Iadd.A device according to claim 1, wherein said display control means causes display of said indicia upon a next operating of said operation switching means following display of said last character data item by operating said operation switching means. .Iaddend. 
     
     
       21. .Iadd.A device according to claim 1, wherein said display control means permits the first character data item to be displayed upon a next operating of said operation switching means following display of said indicia by operating said operation switching means. .Iaddend. 
     
     
       22. .Iadd.A device according to claim 11, wherein said display control means permits the first character data item to be displayed upon a next operating of said operation switching means following display of said indicia by operating said operation switching means. .Iaddend. 
     
     
       23. .Iadd.A device according to claim 19, wherein said display control means causes display of said indicia upon a next operating of said operation switching means following display of said last character data item by operating said operation switching means. .Iaddend. 
     
     
       24. .Iadd.A device according to claim 19, wherein said display control means permits the first character data item to be displayed upon a next operating of said operation switching means following display of said indicia by operating said operation switching means. .Iaddend.