BE737738A - - Google Patents
Info
- Publication number
- BE737738A BE737738A BE737738A BE737738A BE737738A BE 737738 A BE737738 A BE 737738A BE 737738 A BE737738 A BE 737738A BE 737738 A BE737738 A BE 737738A BE 737738 A BE737738 A BE 737738A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/002—Telephonic communication systems specially adapted for combination with other electrical systems with telemetering systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
- H01H47/24—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil having light-sensitive input
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/10—Auxiliary devices for switching or interrupting
- H01P1/15—Auxiliary devices for switching or interrupting by semiconductor devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Relay Circuits (AREA)
- Selective Calling Equipment (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US69102167A | 1967-12-15 | 1967-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE737738A true BE737738A (xx) | 1970-02-02 |
Family
ID=24774862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE737738A BE737738A (xx) | 1967-12-15 | 1969-08-20 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3523187A (xx) |
| BE (1) | BE737738A (xx) |
| CH (1) | CH511537A (xx) |
| DE (1) | DE1942103B2 (xx) |
| GB (1) | GB1280489A (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2607297B1 (fr) * | 1986-11-25 | 1989-05-05 | Marquet Didier | Appareil pour le releve a distance de compteurs ou analogues |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3175090A (en) * | 1958-02-27 | 1965-03-23 | Hewlett Packard Co | Counter network including photoresponsive elements |
| US3389263A (en) * | 1965-09-24 | 1968-06-18 | Wesley O. Niccolls | Neon photoconductor ring oscillator circuit |
-
1967
- 1967-12-15 US US691021A patent/US3523187A/en not_active Expired - Lifetime
-
1969
- 1969-08-14 GB GB40691/69A patent/GB1280489A/en not_active Expired
- 1969-08-19 DE DE19691942103 patent/DE1942103B2/de active Pending
- 1969-08-20 BE BE737738A patent/BE737738A/xx unknown
- 1969-08-20 CH CH1265769A patent/CH511537A/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE1942103B2 (de) | 1973-05-30 |
| CH511537A (de) | 1971-08-15 |
| US3523187A (en) | 1970-08-04 |
| GB1280489A (en) | 1972-07-05 |
| DE1942103A1 (de) | 1971-03-04 |