CH260453A - Einrichtung zum Regeln der Frequenz einer frequenzmodulierten Schwingung. - Google Patents
Einrichtung zum Regeln der Frequenz einer frequenzmodulierten Schwingung.Info
- Publication number
- CH260453A CH260453A CH260453DA CH260453A CH 260453 A CH260453 A CH 260453A CH 260453D A CH260453D A CH 260453DA CH 260453 A CH260453 A CH 260453A
- Authority
- CH
- Switzerland
- Prior art keywords
- frequency
- regulating
- modulated oscillation
- oscillation
- modulated
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/04—Systems for the transmission of one television signal, i.e. both picture and sound, by a single carrier
- H04N7/045—Systems for the transmission of one television signal, i.e. both picture and sound, by a single carrier the carrier being frequency modulated
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/002—Transmission systems not characterised by the medium used for transmission characterised by the use of a carrier modulation
- H04B14/006—Angle modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/50—Tuning indicators; Automatic tuning control
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB260453X | 1944-03-25 | ||
GB11244X | 1944-12-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH260453A true CH260453A (de) | 1949-03-15 |
Family
ID=26236496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH260453D CH260453A (de) | 1944-03-25 | 1947-01-13 | Einrichtung zum Regeln der Frequenz einer frequenzmodulierten Schwingung. |
Country Status (4)
Country | Link |
---|---|
US (1) | US2501368A (de) |
CH (1) | CH260453A (de) |
FR (1) | FR945161A (de) |
GB (1) | GB577758A (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2653243A (en) * | 1948-08-17 | 1953-09-22 | Westinghouse Electric Corp | Automatic tuning of resonant circuits |
ES187413A1 (es) * | 1948-09-25 | 1949-05-01 | Rca Corp | Un sistema estabilizador de la frecuencia |
US2590784A (en) * | 1948-11-26 | 1952-03-25 | Philco Corp | Heterodyne frequency modulator with automatic deviation control |
US2659813A (en) * | 1950-02-11 | 1953-11-17 | Bell Telephone Labor Inc | Frequency modulation repeater |
US2593395A (en) * | 1950-03-17 | 1952-04-15 | Rca Corp | High-frequency amplitude modulated transmitter |
US2794858A (en) * | 1950-04-04 | 1957-06-04 | Rca Corp | Synchronizing system |
US2587426A (en) * | 1950-04-28 | 1952-02-26 | Atomic Energy Commission | Pulse forming network |
US2614211A (en) * | 1950-05-13 | 1952-10-14 | Bell Telephone Labor Inc | Frequency controlled radio relaying system |
US2874216A (en) * | 1953-10-27 | 1959-02-17 | Gen Electric | Automatic signal control system |
US2977410A (en) * | 1955-02-07 | 1961-03-28 | Philco Corp | Automatic frequency control system |
US2991353A (en) * | 1959-03-03 | 1961-07-04 | American Telephone & Telegraph | Automatic frequency control for multitransmitter radio system |
NL266360A (de) * | 1961-06-26 | |||
US3172046A (en) * | 1962-04-09 | 1965-03-02 | Link Division General Prec Inc | Signal filter system |
US3426281A (en) * | 1966-02-28 | 1969-02-04 | Us Army | Reception of time dispersed signals utilizing impulse response storage in recirculating delay lines |
US3480883A (en) * | 1967-08-15 | 1969-11-25 | Bell Telephone Labor Inc | Frequency modulated phase-locked oscillator |
FR2260221B1 (de) * | 1974-02-04 | 1980-01-11 | Matra | |
US4875143A (en) * | 1987-07-23 | 1989-10-17 | Robert Fernandez | Rotating light circuit and speaker cover |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB445350A (en) * | 1934-10-05 | 1936-04-06 | Cole E K Ltd | Automatic tuning for radio receivers |
NL79628B (de) * | 1935-10-17 | |||
US2259690A (en) * | 1939-04-20 | 1941-10-21 | Univ Leland Stanford Junior | High frequency radio apparatus |
US2280824A (en) * | 1938-04-14 | 1942-04-28 | Univ Leland Stanford Junior | Radio transmission and reception |
US2250532A (en) * | 1938-10-29 | 1941-07-29 | Rca Corp | Radio relaying system |
BE473156A (de) * | 1940-01-12 | |||
US2275486A (en) * | 1940-01-12 | 1942-03-10 | Edwin H Armstrong | Means and method for relaying frequency modulated signals |
US2334189A (en) * | 1940-06-05 | 1943-11-16 | Rca Corp | Relay system and associated circuits therefor |
US2290517A (en) * | 1940-08-02 | 1942-07-21 | Hazeltine Corp | Frequency-modulation television signal receiver |
US2312079A (en) * | 1940-09-06 | 1943-02-23 | Rca Corp | Frequency control |
US2341649A (en) * | 1941-05-23 | 1944-02-15 | Rca Corp | Frequency control |
US2354510A (en) * | 1941-07-11 | 1944-07-25 | Int Standard Electric Corp | Automatic frequency control |
US2312783A (en) * | 1941-10-25 | 1943-03-02 | Rca Corp | Frequency variation response circuit |
US2414100A (en) * | 1942-01-16 | 1947-01-14 | Univ Leland Stanford Junior | Automatic frequency control system |
US2369268A (en) * | 1942-05-27 | 1945-02-13 | Rca Corp | Radio repeater |
US2413939A (en) * | 1944-03-21 | 1947-01-07 | Philco Corp | Ultra high frequency discriminator |
US2425013A (en) * | 1944-04-07 | 1947-08-05 | Sperry Gyroscope Co Inc | Frequency control system |
-
1944
- 1944-03-25 GB GB5541/44A patent/GB577758A/en not_active Expired
-
1945
- 1945-03-03 US US580821A patent/US2501368A/en not_active Expired - Lifetime
-
1946
- 1946-08-27 FR FR945161D patent/FR945161A/fr not_active Expired
-
1947
- 1947-01-13 CH CH260453D patent/CH260453A/de unknown
Also Published As
Publication number | Publication date |
---|---|
GB577758A (en) | 1946-05-30 |
FR945161A (fr) | 1949-04-27 |
US2501368A (en) | 1950-03-21 |
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