GB406674A - Improvements in or relating to modulated carrier wave transmitting systems - Google Patents
Improvements in or relating to modulated carrier wave transmitting systemsInfo
- Publication number
- GB406674A GB406674A GB24323/32A GB2432332A GB406674A GB 406674 A GB406674 A GB 406674A GB 24323/32 A GB24323/32 A GB 24323/32A GB 2432332 A GB2432332 A GB 2432332A GB 406674 A GB406674 A GB 406674A
- Authority
- GB
- United Kingdom
- Prior art keywords
- line
- valve
- modulating
- capacity
- tube
- 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
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 abstract 2
- 230000001939 inductive effect Effects 0.000 abstract 2
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- 238000007689 inspection Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/10—Angle modulation by means of variable impedance
- H03C3/24—Angle modulation by means of variable impedance by means of a variable resistive element, e.g. tube
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/10—Angle modulation by means of variable impedance
- H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
- H03C3/18—Angle modulation by means of variable impedance by means of a variable reactive element the element being a current-dependent inductor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/10—Angle modulation by means of variable impedance
- H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
- H03C3/20—Angle modulation by means of variable impedance by means of a variable reactive element the element being a voltage-dependent capacitor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/10—Angle modulation by means of variable impedance
- H03C3/24—Angle modulation by means of variable impedance by means of a variable resistive element, e.g. tube
- H03C3/26—Angle modulation by means of variable impedance by means of a variable resistive element, e.g. tube comprising two elements controlled in push-pull by modulating signal
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplitude Modulation (AREA)
- Transmitters (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US563725A US2033231A (en) | 1931-09-19 | 1931-09-19 | Modulation system |
US21343A US2077223A (en) | 1931-09-19 | 1935-05-14 | Modulation system |
Publications (1)
Publication Number | Publication Date |
---|---|
GB406674A true GB406674A (en) | 1934-02-28 |
Family
ID=26694574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB24323/32A Expired GB406674A (en) | 1931-09-19 | 1932-08-31 | Improvements in or relating to modulated carrier wave transmitting systems |
Country Status (3)
Country | Link |
---|---|
US (1) | US2077223A (de) |
DE (1) | DE626359C (de) |
GB (1) | GB406674A (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2225682A (en) * | 1988-12-01 | 1990-06-06 | Stc Plc | Phase modulators |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2652539A (en) * | 1945-11-27 | 1953-09-15 | Joseph W Kearney | Method and means for wide band frequency modulation |
NL67619C (de) * | 1946-05-23 | |||
FR959185A (de) * | 1947-01-04 | 1950-03-25 | ||
FR975958A (fr) * | 1948-09-23 | 1951-03-12 | Thomson Houston Comp Francaise | Modulation de phase à grande excursion |
US2559023A (en) * | 1949-02-21 | 1951-07-03 | United Geophysical Company Inc | Phase modulation |
US2588551A (en) * | 1949-02-21 | 1952-03-11 | United Geophysical Company Inc | Frequency modulation |
US2656466A (en) * | 1949-08-27 | 1953-10-20 | Rca Corp | Capacttor and circuit |
US2679581A (en) * | 1950-05-20 | 1954-05-25 | Westinghouse Electric Corp | Antenna tuning system |
DE911742C (de) * | 1952-02-17 | 1954-05-20 | Telefunken Gmbh | Schaltungsanordnung zur AEnderung der Frequenz eines Oszillators |
-
1932
- 1932-08-31 GB GB24323/32A patent/GB406674A/en not_active Expired
- 1932-09-17 DE DER85927D patent/DE626359C/de not_active Expired
-
1935
- 1935-05-14 US US21343A patent/US2077223A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2225682A (en) * | 1988-12-01 | 1990-06-06 | Stc Plc | Phase modulators |
Also Published As
Publication number | Publication date |
---|---|
US2077223A (en) | 1937-04-13 |
DE626359C (de) | 1936-02-28 |
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