US4156281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic instrument
Assignee: Canon Inc
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Filing: 1977-10-19
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Granted: 1979-05-22
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Expires: 1997-10-19
Abstract
Abstract In an electronic instrument having a keyboard including numeric keys for entering numerical data into the instrument and instruction keys for entering instructions into the instrument, there is provided a memory responsive to the operation of the numeric keys to store numerical data therein, an arithmetic operating circuit responsive to the operation of the instruction keys to operate on at least the numerical data, a time counter for counting time, and a setter for setting the initial value in the time counter in accordance with the numerical data entered by operation of the numeric keys.
Inventors
- 👤 Reiji Hirano
- 👤 Ichiro Sado
- 👤 Seiji Saito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:12
CPC Classifications
G; G04; G04G; G04G9/00; G04G9/0064; G04G9/007
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
169 words
An electronic instrument comprising: a keyboard having numeric keys for entering numerical data into the instrument, instruction keys for instructing arithmetic operations, and a time sampling key; clock means for outputting time information in digital format; a first storage means for storing numerical data; a second storage means for storing numerical data; first control means for causing said first storage means to store numerical data entered in accordance with the operation of said numeric keys; second control means responsive to the operation of said time sampling key for causing said second storage means to store a sampled digital time information from said clock means; arithmetic operation means for carrying out arithmetic operations; and third control means responsive to operation of one of said instruction keys for causing said arithmetic operation means to carry out an operation between the numerical data stored in said first and second storage means in accordance with the instruction from the operated instruction key, and for causing said second storage means to store the result.
Claim 2
Dependent Claim
169 words
An electronic instrument comprising: a keyboard having numeric keys for entering numerical data into the instrument, instruction keys for instructing arithmetic operations, and a time sampling key; clock means for outputting time information in digital format; a first storage means for storing numerical data; a second storage means for storing numerical data; first control means for causing said first storage means to store numerical data entered in accordance with the operation of said numeric keys; second control means responsive to the operation of said time sampling key for causing said second storage means to store a sampled digital time information from said clock means; arithmetic operation means for carrying out arithmetic operations; and third control means responsive to operation of one of said instruction keys for causing said arithmetic operation means to carry out an operation between the numerical data stored in said first and second storage means in accordance with the instruction from the operated instruction key, and for causing said second storage means to store the result.
Claim 3
Dependent Claim
35 words
An electronic instrument according to claim 1 further comprising: first display means for visualizing the content of said second storage means; and second display means for visualizing the digital time information from said clock means.
Claim 4
Dependent Claim
37 words
An electronic instrument according to claim 2 further comprising input control means responsive to the operation of said numeric keys for causing said second storage means to store the numerical data in accordance with the input sequence.
Claim 5
Dependent Claim
73 words
An electronic instrument according to claim 3 wherein said keyboard includes time unit keys for specifying time units, such as hour, minute and second, to the numerical data entered into the instrument, and said instrument further comprises fourth control means responsive to the operation of said time unit keys for rearranging the sequence of the numerical data arranged under the control of said input control means in accordance with a time basis sequence.
Claim 6
Dependent Claim
29 words
An electronic instrument according to claim 4 further comprising setting means for setting the numerical data rearranged under the control of said fourth control means to said clock means.
Claim 7
Dependent Claim
24 words
An electronic instrument according to claim 4 wherein said second display visualizes the numerical data rearranged under the control of said fourth control means.
Claim 8
Dependent Claim
45 words
An electronic instrument according to claim 1 wherein said keyboard includes a further key and said instrument further comprises means responsive to the operation of said further key for resetting said clock means in accordance with the numerical data stored in said second storage means.
Claim 9
Dependent Claim
101 words
An electronic instrument comprising: first display means for numerical information; second display means for numerical information; clock means for outputting time information in digital format; a manually operable key; storage means for storing numerical data; first control means for causing said first display means to sequentially visualize the digital time information from said clock means; and second control means responsive to the operation of said key for causing said storage means to store a sampled digital time information from said clock means, and for causing said second display means to visualize the sampled digital time information stored in said storage means.
Claim 10
Dependent Claim
101 words
An electronic instrument comprising: first display means for numerical information; second display means for numerical information; clock means for outputting time information in digital format; a manually operable key; storage means for storing numerical data; first control means for causing said first display means to sequentially visualize the digital time information from said clock means; and second control means responsive to the operation of said key for causing said storage means to store a sampled digital time information from said clock means, and for causing said second display means to visualize the sampled digital time information stored in said storage means.
Claim 11
Dependent Claim
63 words
An electronic instrument according to claim 8 further comprisng an arithmetic operation means for carrying out an arithmetic operation, additional storage means for storing numerical data, and arithmetic control means for causing said arithmetic operation means to carry out an operation with the numercial data stored in both of said storage means, and for causing said additional storage means to store the result.
Claim 12
Dependent Claim
43 words
An electronic instrument according to claim 9 further comprising third control means for transferring the numerical data in said additional storage means to said storage means, and for causing said second display means to visualize the numerical data stored in said storage means.
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) | 1982-05-21 | 1982-11-20 | 1983-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-21 | 1986-11-20 | 1987-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-21 | 1990-11-20 | 1991-05-22 | $7700.00 | Window Closed / Lapsed |