BE360486A - - Google Patents
Info
- Publication number
- BE360486A BE360486A BE360486DA BE360486A BE 360486 A BE360486 A BE 360486A BE 360486D A BE360486D A BE 360486DA BE 360486 A BE360486 A BE 360486A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/04—Modulator circuits; Transmitter circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Control Of Position Or Direction (AREA)
- Relay Circuits (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Mechanisms For Operating Contacts (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR660951T | 1928-01-10 | ||
FR35675T | 1928-05-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE360486A true BE360486A (en) |
Family
ID=26182665
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE360486D BE360486A (en) | 1928-01-10 | ||
BE356937D BE356937A (en) | 1928-01-10 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE356937D BE356937A (en) | 1928-01-10 |
Country Status (5)
Country | Link |
---|---|
US (1) | US1972289A (en) |
BE (2) | BE356937A (en) |
DE (1) | DE489657C (en) |
FR (2) | FR660951A (en) |
GB (2) | GB303839A (en) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3215999A (en) * | 1965-11-02 | Memory control device | ||
USRE23990E (en) * | 1946-05-17 | 1955-05-03 | locke | |
US2466099A (en) * | 1947-01-08 | 1949-04-05 | Hansen Carlos | Apparatus for transmission of radiotelegraphic signals relating to sea or river levels at the site of installation |
US2487778A (en) * | 1948-01-29 | 1949-11-15 | Atlas David | Automatic altimeter setting indicator and transmitter |
CH272955A (en) * | 1948-06-14 | 1951-01-15 | Kaelin Pierre | A phone booth. |
BE489569A (en) * | 1948-06-14 | Kaelin Pierre | ||
US2587635A (en) * | 1948-06-29 | 1952-03-04 | Bell Telephone Labor Inc | Spaced-pulse impulse sender |
US2588397A (en) * | 1948-06-29 | 1952-03-11 | Bell Telephone Labor Inc | Spaced-pulse impulse sender |
US2499606A (en) * | 1948-07-16 | 1950-03-07 | Bell Telephone Labor Inc | Preset type telephone dialer with pulse generating transformers |
US2584997A (en) * | 1949-03-02 | 1952-02-12 | Syrl K Ferguson | Message timing device |
US2575342A (en) * | 1949-06-02 | 1951-11-20 | Darrin H Gridley | Position sensing device |
US2590885A (en) * | 1949-12-08 | 1952-04-01 | Bell Telephone Labor Inc | Spaced-pulse impulse sender |
US2620390A (en) * | 1950-07-03 | 1952-12-02 | Charles E Sunderland | Automatic emergency keyer unit |
US2768238A (en) * | 1952-03-17 | 1956-10-23 | Ben W Risinger | Automatic signaling device |
GB722512A (en) * | 1952-06-20 | 1955-01-26 | Nat Res Dev | Improvements in or relating to teleprinting apparatus |
US2746680A (en) * | 1952-07-01 | 1956-05-22 | Maul Michael | Record controlled machine with cross connecting board |
NL87439C (en) * | 1952-09-10 | |||
US2739298A (en) * | 1953-01-07 | 1956-03-20 | Bell Telephone Labor Inc | Multifrequency high speed calling signal generator |
US2866185A (en) * | 1953-02-25 | 1958-12-23 | Stanley S Brody | Universal navigation station identification keyer |
US2826752A (en) * | 1953-11-19 | 1958-03-11 | Eagle Signal Corp | Systems permitting response by only selected units of those connected to a single channel |
US2903686A (en) * | 1955-12-27 | 1959-09-08 | Zenith Radio Corp | Encoding apparatus |
US2890432A (en) * | 1956-09-26 | 1959-06-09 | Robotron Corp | Apparatus and method for producing and using a variable conductive pattern |
US3152323A (en) * | 1959-08-18 | 1964-10-06 | Edward L E Pardee | Plural interval timing device having a conductor matrix for selection of the time intervals |
DE1228656B (en) * | 1964-12-21 | 1966-11-17 | Befa Bau Elektro Feinmech App | Key device for automatic generation of alarm and emergency signals for seagoing vessels |
US3418431A (en) * | 1965-05-28 | 1968-12-24 | Bell Telephone Labor Inc | Code transmitter |
US3492650A (en) * | 1965-07-06 | 1970-01-27 | Tore Gottfrid Hesselgren | Matrix for producing electric pulses |
US3836729A (en) * | 1972-07-03 | 1974-09-17 | Kososki H | Automatic telephone signalling apparatus |
-
0
- BE BE360486D patent/BE360486A/xx unknown
- BE BE356937D patent/BE356937A/xx unknown
-
1928
- 1928-01-10 FR FR660951D patent/FR660951A/en not_active Expired
- 1928-05-19 FR FR35675D patent/FR35675E/en not_active Expired
-
1929
- 1929-01-10 DE DEC42485D patent/DE489657C/en not_active Expired
- 1929-01-10 GB GB960/29A patent/GB303839A/en not_active Expired
- 1929-05-17 GB GB15557/29A patent/GB312090A/en not_active Expired
- 1929-05-20 US US364617A patent/US1972289A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US1972289A (en) | 1934-09-04 |
DE489657C (en) | 1930-01-22 |
BE356937A (en) | |
GB312090A (en) | 1930-01-23 |
FR660951A (en) | 1929-07-19 |
GB303839A (en) | 1929-06-06 |
FR35675E (en) | 1930-03-27 |