Patent FR2443342A1 successfully refreshed from Google Patents.
US3641329A
Expired / Lapsed
US
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Improvements in electronic computer keyboard control
Assignee: Olivetti SpA
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Filing: 1969-10-24
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Granted: 1972-02-08
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Expires: 1989-10-24
Abstract
Abstract A control keyboard for an electronic digital machine (computer or calculator) has function keys and number keys. The number keys enter data into a first working register. The activation of any one particular function key of a group of such keys causes an answer corresponding to the ordered function to be placed in the first working register and the contents of the first working register to be transferred to a second working register. A plurality of totalizing registers are operatively connected to the first working register and, in response to the activation of any one of a second group of particular function keys, the number in the first working register is accumulated in one of the totalizing registers associated therewith. A further group of keys is provided which provide a combination of the functions of the first and second keys, and specific functions such a data printout and data exchange.
Inventors
- 👤 Giovanni De Sandre
- 👤 Gastone Garziera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:52
CPC Classifications
G; G11; G11C; G11C21/00; G06; G06F; G06F15/00; G06F15/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
134 words
An electronic computing arrangement including a plurality of registers and input/output elements comprising: a first and a second operating register for containing numbers; a control keyboard including a first group of function keys and a plurality of numbers keys; means, responsive to the operation of one or more of said number keys, for entering a current number into said first register; execution means, responsive to the operation of any one of said first group of function keys, for altering the current number in said first operating register in accordance with the operated function key, said altered number remaining in said first register; and, transfer means, also responsive to the operation of said operated one of said first group of function keys, for transferring said current number in said first register to said second register.
Claim 2
Dependent Claim
134 words
An electronic computing arrangement including a plurality of registers and input/output elements comprising: a first and a second operating register for containing numbers; a control keyboard including a first group of function keys and a plurality of numbers keys; means, responsive to the operation of one or more of said number keys, for entering a current number into said first register; execution means, responsive to the operation of any one of said first group of function keys, for altering the current number in said first operating register in accordance with the operated function key, said altered number remaining in said first register; and, transfer means, also responsive to the operation of said operated one of said first group of function keys, for transferring said current number in said first register to said second register.
Claim 3
Dependent Claim
87 words
An electronic computing arrangement according to claim 1, including at least one totalizing register and a second group of function keys in said control keyboard and wherein said executing means includes means, responsive to the actuation of any one of said second group of function keys for algebraically combining the current number in said first operating register and a number in said totalizing register with the result of said combination remaining in said totalizing register and with the current number in said first operating register remaining unchanged.
Claim 4
Dependent Claim
87 words
An electronic computer according to claim 2, wherein said control keyboard includes at least one result totalizing key means for activating both said executing means and said algebraic combining means with said executing means causing a mathematical operation, designated by said result key, to be performed on the numbers of said first and second operating registers with the result of said operation located in said first register and with said algebraic combining means causing said result to be algebraically combined with the number in said totalizing register.
Claim 5
Dependent Claim
90 words
An electronic computer according to claim 2, wherein said control keyboard includes a selection key means and wherein said transfer means includes means which, when said selection key is activated simultaneously with, or immediately prior to, the activation of at least one key of said first group, causes the number in said totalizing register to be transferred to said first register, said transferred number being combined with the number in said second register in accordance with said key of said first group with the result remaining in said first register.
Claim 6
Dependent Claim
64 words
An electronic computer according to claim 1, including at least one totalizing register and a third group of function keys and wherein said executing means includes means, responsive to the actuation of any one of said third group, for transferring the number in said totalizing register into said first register while setting the current number originally in said first register into said second register.
Claim 7
Dependent Claim
51 words
An electronic computer according to claim 5, wherein said third group includes at least one print key, and wherein said output element includes a printer, the operation of said print key causing said printer to print out the number which has been transferred from said totalizing register to said first register.
Claim 8
Dependent Claim
50 words
An arrangement according to claim 1, wherein said keyboard includes an exchange key and wherein said transfer means includes means for exchanging the numbers in said first and second registers, said exchange means being activated only when said exchange key is operated immediately subsequent to the operation of nonnumerical key.
Claim 9
Dependent Claim
48 words
An arrangement according to claim 7 including: means, responsive to the key operation sequence: number key-exchange key-number key, for removing the current number entered into the first operation register prior to the operaTion of the exchange key and placing said current number unaltered into the second operating register.
Claim 10
Dependent Claim
66 words
The arrangement according to claim 8, including a totalizing register and wherein said control keyboard includes a selection key associated with said totalizing register and wherein said transfer means includes means, operative when said selection key is operated simultaneously with, or immediately prior to, the operation of said exchange key for causing the number in said first operation register to be reproduced in said totalizing register.
Claim 11
Dependent Claim
47 words
An electronic computing arrangement according to claim 1, including: means, responsive to the operation of one of said number keys subsequent to the operation of one of the function keys, for removing the number from said first register and placing the removed number in said second register.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |