FR980828A - Dispositif électronique pour calculer les quotients - Google Patents
Dispositif électronique pour calculer les quotientsInfo
- Publication number
- FR980828A FR980828A FR980828DA FR980828A FR 980828 A FR980828 A FR 980828A FR 980828D A FR980828D A FR 980828DA FR 980828 A FR980828 A FR 980828A
- Authority
- FR
- France
- Prior art keywords
- electronic device
- quotients
- calculating
- calculating quotients
- electronic
- Prior art date
- 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
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/24—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating logarithmic or exponential functions, e.g. hyperbolic functions
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
- G06G7/163—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division using a variable impedance controlled by one of the input signals, variable amplification or transfer function
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR980828T | 1948-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR980828A true FR980828A (fr) | 1951-05-18 |
Family
ID=9528034
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR976680D Expired FR976680A (fr) | 1948-12-21 | 1948-10-11 | Appareil pour la détermination électronique des quotients |
FR980828D Expired FR980828A (fr) | 1948-12-21 | 1948-12-21 | Dispositif électronique pour calculer les quotients |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR976680D Expired FR976680A (fr) | 1948-12-21 | 1948-10-11 | Appareil pour la détermination électronique des quotients |
Country Status (1)
Country | Link |
---|---|
FR (2) | FR976680A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3181870A (en) * | 1962-06-07 | 1965-05-04 | Jr Fred D Lasswell | Phonograph |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1470735A (en) * | 1975-06-18 | 1977-04-21 | Ibm | Servo positioning systems for magnetic disc recording |
-
1948
- 1948-10-11 FR FR976680D patent/FR976680A/fr not_active Expired
- 1948-12-21 FR FR980828D patent/FR980828A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3181870A (en) * | 1962-06-07 | 1965-05-04 | Jr Fred D Lasswell | Phonograph |
Also Published As
Publication number | Publication date |
---|---|
FR976680A (fr) | 1951-03-21 |
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