FR1577142A - - Google Patents
Info
- Publication number
- FR1577142A FR1577142A FR1577142DA FR1577142A FR 1577142 A FR1577142 A FR 1577142A FR 1577142D A FR1577142D A FR 1577142DA FR 1577142 A FR1577142 A FR 1577142A
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
- G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
- G06F7/491—Computations with decimal numbers radix 12 or 20.
- G06F7/492—Computations with decimal numbers radix 12 or 20. using a binary weighted representation within each denomination
- G06F7/493—Computations with decimal numbers radix 12 or 20. using a binary weighted representation within each denomination the representation being the natural binary coded representation, i.e. 8421-code
- G06F7/494—Adding; Subtracting
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2207/00—Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F2207/492—Indexing scheme relating to groups G06F7/492 - G06F7/496
- G06F2207/4924—Digit-parallel adding or subtracting
Landscapes
- Engineering & Computer Science (AREA)
- Computing Systems (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Complex Calculations (AREA)
- Error Detection And Correction (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US66797467A | 1967-09-15 | 1967-09-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1577142A true FR1577142A (fr) | 1969-08-01 |
Family
ID=24680447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1577142D Expired FR1577142A (fr) | 1967-09-15 | 1968-08-19 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3521043A (fr) |
DE (1) | DE1774825A1 (fr) |
FR (1) | FR1577142A (fr) |
GB (1) | GB1229026A (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3621219A (en) * | 1967-08-15 | 1971-11-16 | Hayakawa Denki Kogyo Kk | Arithmetic unit utilizing magnetic core matrix registers |
US3648246A (en) * | 1970-04-16 | 1972-03-07 | Ibm | Decimal addition employing two sequential passes through a binary adder in one basic machine cycle |
US3704364A (en) * | 1970-11-10 | 1972-11-28 | Us Navy | A digital memory shift register incorporating target data averaging through a digital smoothing loop |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT557030A (fr) * | 1955-08-01 | |||
US3260840A (en) * | 1961-12-28 | 1966-07-12 | Ibm | Variable mode arithmetic circuits with carry select |
US3426185A (en) * | 1965-12-30 | 1969-02-04 | Ibm | Accumulator for performing arithmetic operations |
-
1967
- 1967-09-15 US US667974A patent/US3521043A/en not_active Expired - Lifetime
-
1968
- 1968-08-19 FR FR1577142D patent/FR1577142A/fr not_active Expired
- 1968-09-04 GB GB1229026D patent/GB1229026A/en not_active Expired
- 1968-09-14 DE DE19681774825 patent/DE1774825A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
GB1229026A (fr) | 1971-04-21 |
DE1774825A1 (de) | 1971-11-04 |
US3521043A (en) | 1970-07-21 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |