FR2249500A1 - - Google Patents
Info
- Publication number
- FR2249500A1 FR2249500A1 FR7435913A FR7435913A FR2249500A1 FR 2249500 A1 FR2249500 A1 FR 2249500A1 FR 7435913 A FR7435913 A FR 7435913A FR 7435913 A FR7435913 A FR 7435913A FR 2249500 A1 FR2249500 A1 FR 2249500A1
- 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.)
- Withdrawn
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
- G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
- G06F7/68—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers using pulse rate multipliers or dividers pulse rate multipliers or dividers per se
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/08—Measuring resistance by measuring both voltage and current
- G01R27/10—Measuring resistance by measuring both voltage and current using two-coil or crossed-coil instruments forming quotient
- G01R27/12—Measuring resistance by measuring both voltage and current using two-coil or crossed-coil instruments forming quotient using hand generators, e.g. meggers
-
- 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
- G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
- G06F7/64—Digital differential analysers, i.e. computing devices for differentiation, integration or solving differential or integral equations, using pulses representing increments; Other incremental computing devices for solving difference equations
- G06F7/66—Digital differential analysers, i.e. computing devices for differentiation, integration or solving differential or integral equations, using pulses representing increments; Other incremental computing devices for solving difference equations wherein pulses represent unitary increments only
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Physics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Computational Mathematics (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Manipulation Of Pulses (AREA)
- Complex Calculations (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00410134A US3828169A (en) | 1973-10-26 | 1973-10-26 | Apparatus for digital frequency multiplication |
US411543A US3864556A (en) | 1973-10-26 | 1973-10-31 | Apparatus for digital frequency scaling |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2249500A1 true FR2249500A1 (fr) | 1975-05-23 |
Family
ID=27020880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7435913A Withdrawn FR2249500A1 (fr) | 1973-10-26 | 1974-10-25 |
Country Status (5)
Country | Link |
---|---|
US (2) | US3828169A (fr) |
BE (1) | BE821460A (fr) |
DE (1) | DE2450344A1 (fr) |
FR (1) | FR2249500A1 (fr) |
NL (1) | NL7413050A (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4115863A (en) * | 1976-12-07 | 1978-09-19 | Sperry Rand Corporation | Digital stroke display with vector, circle and character generation capability |
FR2408870A1 (fr) * | 1977-11-09 | 1979-06-08 | Aerospatiale | Procede et dispositif pour la multiplication d'une valeur stochastique par un coefficient plus grand que l'unite |
US4275450A (en) * | 1979-08-01 | 1981-06-23 | Xerox Corporation | Magnification/demagnification apparatus and method |
US4773031A (en) * | 1984-12-24 | 1988-09-20 | Tektronix, Inc. | Method and circuit for digital frequency multiplication |
US5023822A (en) * | 1988-10-31 | 1991-06-11 | Schlotterer John C | Pulse ratio system |
US5500744A (en) * | 1994-08-05 | 1996-03-19 | Miles Inc. | Method and appparatus for image scaling using parallel incremental interpolation |
GB9618069D0 (en) * | 1996-08-28 | 1996-10-09 | The Technology Partnership Plc | Frequency dividing cicuit |
US6112217A (en) * | 1998-07-24 | 2000-08-29 | Siemens Aktiengesellschaft | Method and apparatus for generating clock signals |
US6480045B2 (en) | 2001-01-05 | 2002-11-12 | Thomson Licensing S.A. | Digital frequency multiplier |
WO2005052820A1 (fr) * | 2003-10-31 | 2005-06-09 | International Business Machines Corporation | Procede et appareil permettant l'echelonnement d'une frequence au niveau d'un systeme dynamique |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2748283A (en) * | 1953-08-19 | 1956-05-29 | Bell Telephone Labor Inc | Frequency multiplier apparatus |
US3219935A (en) * | 1961-08-08 | 1965-11-23 | Yokogawa Electric Corp | Measuring-counting system for determining and control-circuit for continuously providing exact multiple of unknown frequency input |
US3199037A (en) * | 1962-09-25 | 1965-08-03 | Thompson Ramo Wooldridge Inc | Phase-locked loops |
US3646330A (en) * | 1970-05-28 | 1972-02-29 | Atomic Energy Commission | Continuous digital ratemeter |
US3757095A (en) * | 1970-08-26 | 1973-09-04 | Tektronix Inc | Numerical control system |
US3674999A (en) * | 1970-10-22 | 1972-07-04 | Gen Electric | Numerical function generator |
US3701890A (en) * | 1970-12-08 | 1972-10-31 | Allen Bradley Co | Digital differential analyzer employing multiple overflow bits |
US3740535A (en) * | 1971-08-16 | 1973-06-19 | Westinghouse Electric Corp | Numerical contouring control system |
-
1973
- 1973-10-26 US US00410134A patent/US3828169A/en not_active Expired - Lifetime
- 1973-10-31 US US411543A patent/US3864556A/en not_active Expired - Lifetime
-
1974
- 1974-10-03 NL NL7413050A patent/NL7413050A/xx not_active Application Discontinuation
- 1974-10-23 DE DE19742450344 patent/DE2450344A1/de active Pending
- 1974-10-25 BE BE1006248A patent/BE821460A/fr unknown
- 1974-10-25 FR FR7435913A patent/FR2249500A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
NL7413050A (nl) | 1975-04-29 |
US3864556A (en) | 1975-02-04 |
BE821460A (fr) | 1975-04-25 |
DE2450344A1 (de) | 1975-04-30 |
US3828169A (en) | 1974-08-06 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |