DE912830C - UEberlagerungsempfaenger fuer sehr kurze Wellen - Google Patents
UEberlagerungsempfaenger fuer sehr kurze WellenInfo
- Publication number
- DE912830C DE912830C DEN2202A DEN0002202A DE912830C DE 912830 C DE912830 C DE 912830C DE N2202 A DEN2202 A DE N2202A DE N0002202 A DEN0002202 A DE N0002202A DE 912830 C DE912830 C DE 912830C
- Authority
- DE
- Germany
- Prior art keywords
- vibrations
- local
- points
- lechersystem
- antenna
- 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
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/14—Balanced arrangements
- H03D7/1408—Balanced arrangements with diodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/14—Balanced arrangements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/54—Amplifiers using transit-time effect in tubes or semiconductor devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H2/00—Networks using elements or techniques not provided for in groups H03H3/00 - H03H21/00
- H03H2/005—Coupling circuits between transmission lines or antennas and transmitters, receivers or amplifiers
- H03H2/008—Receiver or amplifier input circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/12—Neutralising, balancing, or compensation arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
- H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
- H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
- H04B15/06—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder by local oscillators of receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/06—Answer-back mechanisms or circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L15/00—Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code
- H04L15/04—Apparatus or circuits at the transmitting end
- H04L15/22—Apparatus or circuits for sending one or a restricted number of signals, e.g. distress signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL102359A NL60852C (US06534493-20030318-C00166.png) | 1941-07-30 | 1941-07-30 | |
NL619747X | 1943-07-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE912830C true DE912830C (de) | 1954-06-03 |
Family
ID=26641551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEN2202A Expired DE912830C (de) | 1941-07-30 | 1944-07-22 | UEberlagerungsempfaenger fuer sehr kurze Wellen |
Country Status (5)
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2772355A (en) * | 1951-07-05 | 1956-11-27 | Polytechnic Res & Dev Co Inc | Wide range tuner |
US2654836A (en) * | 1952-04-24 | 1953-10-06 | Rca Corp | Converter circuit |
DE973679C (de) * | 1952-07-25 | 1960-04-28 | Telefunken Gmbh | Schaltungsanordnung zur Unterdruckung der Ausstrahlung der Oberwellen eines Oszillators eines UKW-Empfaengers |
US2835796A (en) * | 1954-02-09 | 1958-05-20 | Bernard B King | Television tuner with local oscillator variably coupled to mixer through tunable long lines |
US3302852A (en) * | 1965-05-20 | 1967-02-07 | Waldorf Paper Prod Co | Recessed end containers |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1980158A (en) * | 1931-05-01 | 1934-11-06 | Rca Corp | Oscillatory circuit |
US1933669A (en) * | 1931-10-19 | 1933-11-07 | American Telephone & Telegraph | Selective antenna circuits |
US2106776A (en) * | 1935-02-23 | 1938-02-01 | Rca Corp | Receiving system |
US2238438A (en) * | 1935-03-22 | 1941-04-15 | Mackay Radio & Telegraph Co | Electrical network |
US2227078A (en) * | 1937-11-11 | 1940-12-31 | Telefunken Gmbh | Heterodyne receiver for ultrashort waves |
NL58874C (US06534493-20030318-C00166.png) * | 1938-01-29 | |||
US2382693A (en) * | 1940-02-24 | 1945-08-14 | Dallenbach Walter | Oscillator-modulator circuit |
US2260844A (en) * | 1940-03-12 | 1941-10-28 | Gen Electric | Ultra high frequency converter |
BE443633A (US06534493-20030318-C00166.png) * | 1940-12-05 | |||
BE444311A (US06534493-20030318-C00166.png) * | 1941-01-31 | |||
US2479537A (en) * | 1942-12-30 | 1949-08-16 | Gen Electric | Detector-oscillator circuit for ultra high frequency receivers |
-
1943
- 1943-07-26 NL NL112356A patent/NL64724C/xx active
-
1944
- 1944-07-22 DE DEN2202A patent/DE912830C/de not_active Expired
- 1944-07-24 FR FR53730D patent/FR53730E/fr not_active Expired
-
1946
- 1946-07-20 US US685200A patent/US2591982A/en not_active Expired - Lifetime
- 1946-12-24 GB GB37814/46A patent/GB619747A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2591982A (en) | 1952-04-08 |
GB619747A (en) | 1949-03-14 |
NL64724C (US06534493-20030318-C00166.png) | 1949-11-15 |
FR53730E (fr) | 1946-07-29 |
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