FR69952E - Device for the production of voltage pulses following one another in time, used for locating in particular in telephone installations and for checking these voltage pulse generators - Google Patents
Device for the production of voltage pulses following one another in time, used for locating in particular in telephone installations and for checking these voltage pulse generatorsInfo
- Publication number
- FR69952E FR69952E FR69952DA FR69952E FR 69952 E FR69952 E FR 69952E FR 69952D A FR69952D A FR 69952DA FR 69952 E FR69952 E FR 69952E
- Authority
- FR
- France
- Prior art keywords
- locating
- checking
- production
- another
- time
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
- C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
- C07D239/47—One nitrogen atom and one oxygen or sulfur atom, e.g. cytosine
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
- C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
- C07D239/48—Two nitrogen atoms
- C07D239/49—Two nitrogen atoms with an aralkyl radical, or substituted aralkyl radical, attached in position 5, e.g. trimethoprim
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/04—Distributors combined with modulators or demodulators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electrotherapy Devices (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Rectifiers (AREA)
- Emergency Protection Circuit Devices (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE718155X | 1951-08-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR69952E true FR69952E (en) | 1959-01-30 |
Family
ID=6626875
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1090934D Expired FR1090934A (en) | 1951-08-13 | 1952-08-05 | Device for the production of voltage pulses following one another in time, used for locating in particular in telephone installations and for checking these voltage pulse generators |
FR69952D Expired FR69952E (en) | 1951-08-13 | 1956-02-06 | Device for the production of voltage pulses following one another in time, used for locating in particular in telephone installations and for checking these voltage pulse generators |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1090934D Expired FR1090934A (en) | 1951-08-13 | 1952-08-05 | Device for the production of voltage pulses following one another in time, used for locating in particular in telephone installations and for checking these voltage pulse generators |
Country Status (5)
Country | Link |
---|---|
US (1) | US2747023A (en) |
BE (2) | BE513500A (en) |
DE (2) | DE897853C (en) |
FR (2) | FR1090934A (en) |
GB (1) | GB718155A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1003272B (en) * | 1957-06-26 | 1957-02-28 | Siemens Ag | Numeric transmitter with a pick-up which searches for marking points marked by memory contacts to determine the number of pulses in a series of pulses, especially for telephone systems |
US3308433A (en) * | 1963-01-10 | 1967-03-07 | Rca Corp | Switching matrix |
DE3045512C2 (en) * | 1980-12-03 | 1982-10-07 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Electronic switching device for television and audio broadcast programs |
US9978270B2 (en) | 2014-07-28 | 2018-05-22 | Econolite Group, Inc. | Self-configuring traffic signal controller |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2117639A (en) * | 1935-08-07 | 1938-05-17 | Fay G Johnson | Traffic signal |
US2541932A (en) * | 1948-05-19 | 1951-02-13 | Bell Telephone Labor Inc | Multiplex speech interpolation system |
BE496916A (en) * | 1949-07-29 |
-
1951
- 1951-08-13 DE DES24396A patent/DE897853C/en not_active Expired
-
1952
- 1952-07-30 US US30164752 patent/US2747023A/en not_active Expired - Lifetime
- 1952-08-05 FR FR1090934D patent/FR1090934A/en not_active Expired
- 1952-08-13 BE BE513500D patent/BE513500A/xx unknown
- 1952-08-13 GB GB2036152A patent/GB718155A/en not_active Expired
-
1955
- 1955-02-08 DE DES42610A patent/DE951458C/en not_active Expired
-
1956
- 1956-02-06 FR FR69952D patent/FR69952E/en not_active Expired
- 1956-02-07 BE BE545026D patent/BE545026A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE897853C (en) | 1953-11-26 |
DE951458C (en) | 1956-10-31 |
BE513500A (en) | 1952-08-30 |
FR1090934A (en) | 1955-04-05 |
GB718155A (en) | 1954-11-10 |
BE545026A (en) | 1959-10-09 |
US2747023A (en) | 1956-05-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR1090934A (en) | Device for the production of voltage pulses following one another in time, used for locating in particular in telephone installations and for checking these voltage pulse generators | |
CH332300A (en) | Photoelectric device for the production of periodic electrical pulses | |
CH260748A (en) | Pulse distributor device. | |
FR1456884A (en) | Method for obtaining high voltage pulses and device including application | |
FR1046384A (en) | Device for checking the simultaneous presence of two voltage pulses acting instantaneously, in particular signal voltage pulses in telephone installations | |
FR1033948A (en) | Tubular enameling device, in particular for bracelets | |
FR1303341A (en) | Stopping and adjusting device, in particular for digit rollers of pulse counters | |
FR996960A (en) | Device for checking electrical equipment, in particular electrical cycle equipment and the like | |
FR995195A (en) | Device for inserting pulses into electrical signals | |
FR1248942A (en) | Pulse transmitter device for labeling machines | |
FR1108295A (en) | Pulse detection device | |
FR1239068A (en) | Device for measuring the average number of electrical pulses occurring per unit of time | |
FR903221A (en) | Pulse series transmitter device for telecommunications installations, in particular for telephone installations | |
FR1358291A (en) | Coupling device for recording the extreme value of a voltage curve, in particular for measuring pulse amplitudes | |
FR1110067A (en) | Voltage pulse generator device | |
LU31055A1 (en) | device for adjusting the voltage in x-ray generators | |
FR1403796A (en) | Double-scale device for measuring the time interval between two electrical pulses, regardless of the duration of these pulses | |
FR1205809A (en) | Device making it possible to demonstrate very low electrical voltages linked, in time, to the existence of pulses | |
FR1257968A (en) | Mounting device for damping surges in multistage pulse generators | |
CH279487A (en) | Device for permuting the elements of a group of electrical pulses over time. | |
FR977230A (en) | Pulse generator device, in particular for electric fences | |
FR1036315A (en) | Device for the return of the needle in aperiodic galvanometers, in particular flux meters | |
BE611635R (en) | Electronic recording method and circuitry for telephone counting pulses and the like | |
FR1057740A (en) | Anchor escape device for timepiece | |
FR1023849A (en) | Circuits for the accumulation and retransmission of electrical pulses |