BE641809A - - Google Patents
Info
- Publication number
- BE641809A BE641809A BE641809A BE641809A BE641809A BE 641809 A BE641809 A BE 641809A BE 641809 A BE641809 A BE 641809A BE 641809 A BE641809 A BE 641809A BE 641809 A BE641809 A BE 641809A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/36—Amplitude modulation by means of semiconductor device having at least three electrodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
- H04N7/148—Interfacing a video terminal to a particular transmission medium, e.g. ISDN
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Amplitude Modulation (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US247186A US3324416A (en) | 1962-12-26 | 1962-12-26 | Amplitude modulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE641809A true BE641809A (en:Method) | 1964-06-29 |
Family
ID=22933933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE641809A BE641809A (en:Method) | 1962-12-26 | 1963-12-27 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3324416A (en:Method) |
| AT (1) | AT242764B (en:Method) |
| BE (1) | BE641809A (en:Method) |
| CH (1) | CH418410A (en:Method) |
| DE (1) | DE1232195B (en:Method) |
| GB (1) | GB1009330A (en:Method) |
| NL (1) | NL302291A (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3384840A (en) * | 1965-07-14 | 1968-05-21 | Teldata Corp | Balanced modulator having suppression means |
| US3633005A (en) * | 1970-02-26 | 1972-01-04 | Ibm | A four quadrant multiplier using a single amplifier in a balanced modulator circuit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1004231B (de) * | 1953-01-13 | 1957-03-14 | Telefunken Gmbh | Schaltungsanordnung zur impulstraegerlosen Modulation von Impulsen |
| US2992326A (en) * | 1959-08-10 | 1961-07-11 | Leonard R Kahn | Frquency translating circuitry |
| US3122715A (en) * | 1960-10-14 | 1964-02-25 | Electro Mechanical Res Inc | Frequency converter systems |
| US3229230A (en) * | 1962-10-19 | 1966-01-11 | Motorola Inc | Suppressed carrier modulator |
-
0
- NL NL302291D patent/NL302291A/xx unknown
-
1962
- 1962-12-26 US US247186A patent/US3324416A/en not_active Expired - Lifetime
-
1963
- 1963-12-20 GB GB50406/63A patent/GB1009330A/en not_active Expired
- 1963-12-21 DE DEJ25002A patent/DE1232195B/de active Pending
- 1963-12-23 AT AT1040863A patent/AT242764B/de active
- 1963-12-24 CH CH1589663A patent/CH418410A/de unknown
- 1963-12-27 BE BE641809A patent/BE641809A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3324416A (en) | 1967-06-06 |
| NL302291A (en:Method) | |
| AT242764B (de) | 1965-10-11 |
| GB1009330A (en) | 1965-11-10 |
| DE1232195B (de) | 1967-01-12 |
| CH418410A (de) | 1966-08-15 |