BE628445A - - Google Patents
Info
- Publication number
- BE628445A BE628445A BE628445DA BE628445A BE 628445 A BE628445 A BE 628445A BE 628445D A BE628445D A BE 628445DA BE 628445 A BE628445 A BE 628445A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
- H03D1/22—Homodyne or synchrodyne circuits
- H03D1/2209—Decoders for simultaneous demodulation and decoding of signals composed of a sum-signal and a suppressed carrier, amplitude modulated by a difference signal, e.g. stereocoders
- H03D1/2218—Decoders for simultaneous demodulation and decoding of signals composed of a sum-signal and a suppressed carrier, amplitude modulated by a difference signal, e.g. stereocoders using diodes for the decoding
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/54—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings condensed with carbocyclic rings or ring systems
- C07D231/56—Benzopyrazoles; Hydrogenated benzopyrazoles
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stereo-Broadcasting Methods (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US173642A US3198885A (en) | 1962-02-16 | 1962-02-16 | F.m. stereophonic radio signal receivers having combined pre-detection deemphasis and filtering circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE628445A true BE628445A (it) |
Family
ID=22632922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE628445D BE628445A (it) | 1962-02-16 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3198885A (it) |
| BE (1) | BE628445A (it) |
| DE (1) | DE1234269B (it) |
| ES (1) | ES284699A1 (it) |
| GB (1) | GB1000229A (it) |
| NL (1) | NL289073A (it) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1065456A (en) * | 1962-10-15 | 1967-04-12 | Oki Electric Ind Co Ltd | F.m. multiplex stereophonic broadcast receiver |
| US3306980A (en) * | 1962-12-21 | 1967-02-28 | Matsushita Electric Ind Co Ltd | Noise-limited type frequency multiplier for fm stereophonic receivers |
| US3270138A (en) * | 1963-03-22 | 1966-08-30 | Motorola Inc | F. m. stereophonic receiver having noise prevention means in the pilot circuit |
| US3287501A (en) * | 1963-06-25 | 1966-11-22 | Admiral Corp | Multiplex detector circuit |
| US3304375A (en) * | 1965-03-25 | 1967-02-14 | Motorola Inc | Fm stereo multiplex receiver for automatically switching between stereophonic and monaural operation |
| US4198543A (en) * | 1979-01-19 | 1980-04-15 | General Motors Corporation | Stereo composite processor for stereo radio receiver |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE865325C (de) * | 1951-10-06 | 1953-02-02 | Karl-Otto Dr-Ing Schmidt | Verfahren zur Verbesserung der Verstaendlichkeit bei der UEbertragung von Sprache beim Vorhandensein von Geraeuschen |
| NL267354A (it) * | 1960-07-22 | |||
| US3085203A (en) * | 1960-08-08 | 1963-04-09 | Bell Telephone Labor Inc | Compatible single-sideband transmission |
| US3099707A (en) * | 1960-10-31 | 1963-07-30 | Gen Electric | Stereophonic system |
-
0
- NL NL289073D patent/NL289073A/xx unknown
- BE BE628445D patent/BE628445A/xx unknown
-
1962
- 1962-02-16 US US173642A patent/US3198885A/en not_active Expired - Lifetime
-
1963
- 1963-01-31 ES ES284699A patent/ES284699A1/es not_active Expired
- 1963-01-31 GB GB4109/63A patent/GB1000229A/en not_active Expired
- 1963-02-05 DE DER34380A patent/DE1234269B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3198885A (en) | 1965-08-03 |
| GB1000229A (en) | 1965-08-04 |
| DE1234269B (de) | 1967-02-16 |
| ES284699A1 (es) | 1963-07-01 |
| NL289073A (it) |