BE490686A - - Google Patents
Info
- Publication number
- BE490686A BE490686A BE490686DA BE490686A BE 490686 A BE490686 A BE 490686A BE 490686D A BE490686D A BE 490686DA BE 490686 A BE490686 A BE 490686A
- Authority
- BE
- Belgium
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
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
- H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
- H03B5/34—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being vacuum tube
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
- B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/06—Arrangements for supplying the carrier waves ; Arrangements for supplying synchronisation signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/06—Arrangements for supplying the carrier waves ; Arrangements for supplying synchronisation signals
- H04J1/065—Synchronisation of carrier sources at the receiving station with the carrier source at the transmitting station
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL269951X | 1947-03-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE490686A true BE490686A (cs) | 1950-02-17 |
Family
ID=19781882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE490686D BE490686A (cs) | 1947-03-04 | 1949-08-17 |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE490686A (cs) |
CH (2) | CH269951A (cs) |
DE (2) | DE806555C (cs) |
FR (2) | FR962564A (cs) |
GB (2) | GB639299A (cs) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL86620C (cs) * | 1951-04-09 | |||
DE916893C (de) * | 1952-05-24 | 1954-08-19 | Telefunken Gmbh | Einrichtung zur Ausloesung eines Warnsignals bei einer selbstaetigen Frequenzregelung |
DE1147991B (de) * | 1955-05-04 | 1963-05-02 | Felten & Guilleaume Gmbh | Schaltungsanordnung zur selbsttaetigen, phasenrichtigen Aufschaltung einer Synchronisierwechselspannung auf einen oder mehrere Schwingungserzeuger gleicher Nennfrequenz |
NL214154A (cs) * | 1957-01-30 | |||
DE1175268B (de) * | 1962-09-12 | 1964-08-06 | Siemens Ag | Mitzieheinrichtung fuer in Traegerfrequenz-systemen eingesetzte Grundgeneratoren |
-
1948
- 1948-03-01 GB GB6436/48A patent/GB639299A/en not_active Expired
- 1948-03-02 FR FR962564D patent/FR962564A/fr not_active Expired
- 1948-03-02 CH CH269951D patent/CH269951A/de unknown
- 1948-12-14 DE DEP24580A patent/DE806555C/de not_active Expired
-
1949
- 1949-08-16 DE DEP52214A patent/DE807697C/de not_active Expired
- 1949-08-16 GB GB21297/49A patent/GB675105A/en not_active Expired
- 1949-08-17 BE BE490686D patent/BE490686A/xx unknown
- 1949-08-17 FR FR993365D patent/FR993365A/fr not_active Expired
- 1949-08-17 CH CH275998D patent/CH275998A/de unknown
Also Published As
Publication number | Publication date |
---|---|
GB639299A (en) | 1950-06-28 |
GB675105A (en) | 1952-07-02 |
CH275998A (de) | 1951-06-15 |
DE806555C (de) | 1951-06-14 |
DE807697C (de) | 1951-07-02 |
FR993365A (fr) | 1951-10-30 |
CH269951A (de) | 1950-07-31 |
FR962564A (cs) | 1950-06-14 |