Patent EP0364099A2 successfully refreshed from Google Patents.
EP0364099A2
Expired / Lapsed
EP
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Data storage and retrieval in a calculator
Assignee: Sharp Corp
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Filing: 1989-09-11
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Granted: —
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Expires: 2009-09-11
Abstract
Abstract A computer or calculator, which can use a retrieved data in any position of an expression, has a calculation mode and data retrieval mode, and comprises an X register for an input data, and a Y register for an operand. In the computer, the content of the X register is loaded into the Y register when a predetermined key operation is conducted in the calculation mode, and then the mode of the computer is set to the data retrieval mode. A retrieved data is loaded into the X register, and the mode of the computer returns to the calculation mode.
Inventors
- 👤 Fumiaki Kawawaki
- 👤 Noboru Akizuki
- 👤 Taizou Nishida
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 13:57
CPC Classifications
G; G06; G06F; G06F15/00; G06F15/02; G06F15/025; G06F15/0283
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
170 words
A computer having at least one operation mode characterised in that said computer further has: a data storage mode in which the contents and name of an input are stored in a memory means; and a data retrieval mode in which data stored in said memory means can be retrieved by searching its name whereby the contents of the retrieved data are displayed, and in that said computer comprises: a first mode change means for, in any of said operation modes, changing the mode of said computer from the current operation mode to said data storage mode, whilst holding the state of said current operation mode; a second mode change means for, in a predetermined operation mode, changing the mode of said computer from the current operation mode to said data retrieval mode, whilst holding the state of said current operation mode; and a data process means for causing the contents of the data retrieved in said data retrieval mode to become the input data of said predetermined operation mode.
Claim 2
Dependent Claim
170 words
A computer having at least one operation mode characterised in that said computer further has: a data storage mode in which the contents and name of an input are stored in a memory means; and a data retrieval mode in which data stored in said memory means can be retrieved by searching its name whereby the contents of the retrieved data are displayed, and in that said computer comprises: a first mode change means for, in any of said operation modes, changing the mode of said computer from the current operation mode to said data storage mode, whilst holding the state of said current operation mode; a second mode change means for, in a predetermined operation mode, changing the mode of said computer from the current operation mode to said data retrieval mode, whilst holding the state of said current operation mode; and a data process means for causing the contents of the data retrieved in said data retrieval mode to become the input data of said predetermined operation mode.
Claim 3
Dependent Claim
125 words
A computer having at least one operation mode, characterised in that the computer has at least a calculation mode and a data retrieval mode, and comprises a first register for an input data, and a second register for an operand, and in that said computer further comprises: a means for loading the contents of said first register, into said second register, when a predetermined key operation is conducted in said calculation mode; a means for causing the mode of said computer to be said data retrieval mode, after the contents of said first register are loaded into said second register; and a means for loading a retrieved data into said first register and causing the mode of said computer to return to said calculation mode.
Claim 4
Dependent Claim
125 words
A computer having at least one operation mode, characterised in that the computer has at least a calculation mode and a data retrieval mode, and comprises a first register for an input data, and a second register for an operand, and in that said computer further comprises: a means for loading the contents of said first register, into said second register, when a predetermined key operation is conducted in said calculation mode; a means for causing the mode of said computer to be said data retrieval mode, after the contents of said first register are loaded into said second register; and a means for loading a retrieved data into said first register and causing the mode of said computer to return to said calculation mode.
References Cited (Backward Citations)
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