NL227302A - - Google Patents
Info
- Publication number
- NL227302A NL227302A NL227302DA NL227302A NL 227302 A NL227302 A NL 227302A NL 227302D A NL227302D A NL 227302DA NL 227302 A NL227302 A NL 227302A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/10—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being vacuum tube
-
- 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
-
- 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
- G06G7/161—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division with pulse modulation, e.g. modulation of amplitude, width, frequency, phase or form
-
- 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
- G06G7/20—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating powers, roots, polynomes, mean square values, standard deviation
-
- 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
- G06G7/22—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating trigonometric functions; for conversion of co-ordinates; for computations involving vector quantities
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K4/00—Generating pulses having essentially a finite slope or stepped portions
- H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Algebra (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL227302 | 1958-04-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL227302A true NL227302A (fr) |
Family
ID=19751194
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL102029D NL102029C (fr) | 1958-04-26 | ||
NL227302D NL227302A (fr) | 1958-04-26 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL102029D NL102029C (fr) | 1958-04-26 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3237113A (fr) |
DE (2) | DE1184375B (fr) |
FR (1) | FR1222305A (fr) |
GB (1) | GB917311A (fr) |
NL (2) | NL227302A (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3403327A (en) * | 1965-09-08 | 1968-09-24 | Schlumberger Technology Corp | Methods and apparatus for processing well logging measurements using time domain computation to obtain the reciprocal function of the measurements |
US3396330A (en) * | 1965-12-15 | 1968-08-06 | Schlumberger Technology Corp | Methods and apparatus for taking the logarithm of well logging measurements utilizing a time domain technique |
US3553492A (en) * | 1967-09-05 | 1971-01-05 | Sierra Research Corp | Voltage sampling and follower amplifier |
US3701144A (en) * | 1970-10-28 | 1972-10-24 | Us Navy | High frequency analog-to-digital converter |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2864000A (en) * | 1958-12-09 | Apparatus for comparing the instan- | ||
DE599585C (de) * | 1932-05-02 | 1934-07-05 | Telefunken Gmbh | Anordnung zur Erzeugung von Wechselspannungen dreieckiger Kurvenform |
US2703203A (en) * | 1946-02-21 | 1955-03-01 | Amasa S Bishop | Computer |
US2480201A (en) * | 1946-05-08 | 1949-08-30 | Us Sec War | Apparatus for compressing the amplitude range of signals |
US2598491A (en) * | 1948-12-29 | 1952-05-27 | Ibm | Peaked pulse generator |
US2727682A (en) * | 1949-11-30 | 1955-12-20 | Sun Oil Co | Analog computer or analyzer |
GB696213A (en) * | 1950-01-25 | 1953-08-26 | Emi Ltd | Improvements relating to means for indicating the logarithmic value of a magnitude |
US2860241A (en) * | 1954-10-29 | 1958-11-11 | Richard F Post | Ratio computer |
-
0
- NL NL102029D patent/NL102029C/xx active
- NL NL227302D patent/NL227302A/xx unknown
-
1959
- 1959-03-09 US US798020A patent/US3237113A/en not_active Expired - Lifetime
- 1959-04-22 DE DEN23981A patent/DE1184375B/de active Pending
- 1959-04-22 DE DEN16602A patent/DE1159013B/de active Granted
- 1959-04-23 GB GB13875/59A patent/GB917311A/en not_active Expired
- 1959-04-24 FR FR793135A patent/FR1222305A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1159013B (de) | 1963-12-12 |
DE1159013C2 (fr) | 1964-06-18 |
DE1184375B (de) | 1964-12-31 |
FR1222305A (fr) | 1960-06-09 |
GB917311A (en) | 1963-02-06 |
US3237113A (en) | 1966-02-22 |
NL102029C (fr) |