NL246793A - - Google Patents
Info
- Publication number
- NL246793A NL246793A NL246793DA NL246793A NL 246793 A NL246793 A NL 246793A NL 246793D A NL246793D A NL 246793DA NL 246793 A NL246793 A NL 246793A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/14—Arrangements providing for calling or supervisory signals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/14—Solid thermionic cathodes characterised by the material
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL246793 | 1959-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL246793A true NL246793A (es) |
Family
ID=19752101
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL246793D NL246793A (es) | 1959-12-24 | ||
| NL107299D NL107299C (es) | 1959-12-24 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL107299D NL107299C (es) | 1959-12-24 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3131352A (es) |
| CH (1) | CH402958A (es) |
| DE (1) | DE1141347B (es) |
| GB (1) | GB935855A (es) |
| NL (2) | NL107299C (es) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3306984A (en) * | 1963-12-16 | 1967-02-28 | Bell Telephone Labor Inc | Elimination of talk-off in in-band signaling systems |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2184826A (en) * | 1936-11-20 | 1939-12-26 | Lorenz C Ag | Signal transmission system |
| FR831118A (fr) * | 1936-12-22 | 1938-08-23 | Lorenz C Ag | Dispositif de transmission de messages par des courants alternatifs porteurs à haute fréquence, en particulier dans les installations radiophoniques avec fils |
| US2215483A (en) * | 1937-12-27 | 1940-09-24 | Hartford Nat Bank & Trust Co | Carrier wave telephony system |
| US2880312A (en) * | 1955-02-02 | 1959-03-31 | I D E A Inc | Transistor oscillator-mixer with received and local oscillations applied between emitter and base |
| US2871295A (en) * | 1956-10-29 | 1959-01-27 | Gen Dynamics Corp | Automatic frequency correction in suppressed carrier communication systems |
| US2891145A (en) * | 1956-12-05 | 1959-06-16 | Avco Mfg Corp | Detector and agc system |
-
0
- NL NL246793D patent/NL246793A/xx unknown
- NL NL107299D patent/NL107299C/xx active
-
1960
- 1960-11-14 US US69182A patent/US3131352A/en not_active Expired - Lifetime
- 1960-12-21 GB GB43900/60A patent/GB935855A/en not_active Expired
- 1960-12-21 CH CH1424360A patent/CH402958A/de unknown
- 1960-12-21 DE DEN19356A patent/DE1141347B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL107299C (es) | |
| DE1141347B (de) | 1962-12-20 |
| GB935855A (en) | 1963-09-04 |
| US3131352A (en) | 1964-04-28 |
| CH402958A (de) | 1965-11-30 |