ES182498A1 - A MODULATION SYSTEM - Google Patents
A MODULATION SYSTEMInfo
- Publication number
- ES182498A1 ES182498A1 ES0182498A ES182498A ES182498A1 ES 182498 A1 ES182498 A1 ES 182498A1 ES 0182498 A ES0182498 A ES 0182498A ES 182498 A ES182498 A ES 182498A ES 182498 A1 ES182498 A1 ES 182498A1
- Authority
- ES
- Spain
- Prior art keywords
- waves
- threshold
- fundamental
- modulation system
- instants
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/08—Duration or width modulation ; Duty cycle modulation
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
- Burglar Alarm Systems (AREA)
- Electrotherapy Devices (AREA)
Abstract
Un sistema de modulación en tiempo que comprende una fuente de ondas fundamentales de frecuencia estable, medios transmisores provistos de un umbral de discontinuidad y conectados para transmitir todas las porciones de dichas ondas que se encuentran sobre un lado dado de dicho umbral, por lo que las ondas transmitidas poseen ángulos correspondientes a los instantes de intersección de dichas ondas fundamentales con dicho umbral, una fuente de ondas de señales, medios para variar la posición de dicho umbral con respecto a dichas ondas fundamentales bajo control de dichas ondas de señales, por lo que dichos instantes de intersección son desplazados en tiempo, y medios para diferenciar doblemente dichas ondas transmitidas para derivar impulsos correspondientes a dichos ángulos.A time modulation system that comprises a source of fundamental waves of stable frequency, transmitting means provided with a discontinuity threshold and connected to transmit all the portions of said waves that are on a given side of said threshold, whereby the Transmitted waves have angles corresponding to the instants of intersection of said fundamental waves with said threshold, a source of signal waves, means for varying the position of said threshold with respect to said fundamental waves under the control of said signal waves, therefore said intersection instants are shifted in time, and means for doubly differentiating said transmitted waves to derive pulses corresponding to said angles.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US455899A US2438927A (en) | 1942-08-24 | 1942-08-24 | Modulation means and method |
Publications (1)
Publication Number | Publication Date |
---|---|
ES182498A1 true ES182498A1 (en) | 1948-04-16 |
Family
ID=23810692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES0182498A Expired ES182498A1 (en) | 1942-08-24 | 1948-02-20 | A MODULATION SYSTEM |
Country Status (3)
Country | Link |
---|---|
US (1) | US2438927A (en) |
ES (1) | ES182498A1 (en) |
GB (1) | GB592585A (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2556179A (en) * | 1946-03-02 | 1951-06-12 | Int Standard Electric Corp | Multiple pulse producing system |
US2566826A (en) * | 1948-02-03 | 1951-09-04 | James R Day | Sawtooth frequency modulator |
DE860230C (en) * | 1948-10-01 | 1952-12-18 | Siemens Ag | Method for modulating pulses |
US2710921A (en) * | 1951-10-19 | 1955-06-14 | Bell Telephone Labor Inc | Frequency divider apparatus |
US2856525A (en) * | 1954-07-09 | 1958-10-14 | Underwood Corp | Pulse shaper |
US2867752A (en) * | 1954-08-11 | 1959-01-06 | Baird Atomic Inc | Pulse forming networks |
US2971169A (en) * | 1957-12-30 | 1961-02-07 | Raytheon Co | Pulse position modulation systems |
US2939004A (en) * | 1958-12-31 | 1960-05-31 | Benjamin R Cole | Electronic timing circuit |
US3028562A (en) * | 1959-01-30 | 1962-04-03 | Rosen George | Noise modulation system |
US3113274A (en) * | 1960-06-22 | 1963-12-03 | Westinghouse Air Brake Co | Analog squaring device |
US3167720A (en) * | 1961-02-10 | 1965-01-26 | Transis Tronics Inc | Power amplification means |
US8027224B2 (en) * | 2009-11-11 | 2011-09-27 | Brown David A | Broadband underwater acoustic transducer |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1315529A (en) * | 1919-09-09 | Walter h | ||
US1655543A (en) * | 1924-04-18 | 1928-01-10 | Western Electric Co | Transmission system |
US2028232A (en) * | 1934-07-07 | 1936-01-21 | Submultiple frequency generator | |
US2061734A (en) * | 1934-09-29 | 1936-11-24 | Rca Corp | Signaling system |
US2209395A (en) * | 1934-12-07 | 1940-07-30 | Ibm | Signaling system |
US2086918A (en) * | 1935-08-22 | 1937-07-13 | Rca Corp | Method of frequency or phase modulation |
GB471731A (en) * | 1935-12-04 | 1937-09-06 | Eric Lawrence Casling White | Improvements in and relating to pulse-operated thermionic valve apparatus, such for example as frequency dividers, electrical counting arrangements and the like |
US2113214A (en) * | 1936-10-29 | 1938-04-05 | Rca Corp | Method of frequency or phase modulation |
NL91748C (en) * | 1938-02-16 | |||
US2227596A (en) * | 1938-03-31 | 1941-01-07 | Rca Corp | Signaling system |
US2188611A (en) * | 1938-06-18 | 1940-01-30 | Rca Corp | Impulse generator |
US2324275A (en) * | 1938-06-23 | 1943-07-13 | Gen Electric | Electric translating circuit |
US2221666A (en) * | 1940-01-20 | 1940-11-12 | Hazeltine Corp | Periodic wave repeater |
US2280707A (en) * | 1940-05-31 | 1942-04-21 | Rca Corp | Apparatus for and method of frequency modulating |
-
1942
- 1942-08-24 US US455899A patent/US2438927A/en not_active Expired - Lifetime
-
1944
- 1944-06-08 GB GB11032/44A patent/GB592585A/en not_active Expired
-
1948
- 1948-02-20 ES ES0182498A patent/ES182498A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB592585A (en) | 1947-09-23 |
US2438927A (en) | 1948-04-06 |
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