FR2302632A1 - Electric cyclic switch for signals channels selection - has ten input channels and two output channels with variable duration of connection - Google Patents
Electric cyclic switch for signals channels selection - has ten input channels and two output channels with variable duration of connectionInfo
- Publication number
- FR2302632A1 FR2302632A1 FR7506807A FR7506807A FR2302632A1 FR 2302632 A1 FR2302632 A1 FR 2302632A1 FR 7506807 A FR7506807 A FR 7506807A FR 7506807 A FR7506807 A FR 7506807A FR 2302632 A1 FR2302632 A1 FR 2302632A1
- Authority
- FR
- France
- Prior art keywords
- channels
- switch
- signals
- connection
- output
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
- H03K17/62—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors
- H03K17/6285—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors with several outputs only combined with selecting means
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
A cyclic switch is used to switch ten channels with electrical signals between zero and ten megahertz. Each channel may have its signal amplified, frequency corrected and also corrected according to the length of the cable used. The duration of connection between input and output of a channel may also be varied between 3 and 90 seconds. The switch has two output channels. The switch has ten channels and also ten circuits with video amplifiers and frequency correctors. It also has a counter circuit, a supply circuit and a time-base circuit. The switch may be operated manually or by telecontrol. The switch may be communication or measuring equipment requiring a preset switching of signals.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7506807A FR2302632A1 (en) | 1975-02-27 | 1975-02-27 | Electric cyclic switch for signals channels selection - has ten input channels and two output channels with variable duration of connection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7506807A FR2302632A1 (en) | 1975-02-27 | 1975-02-27 | Electric cyclic switch for signals channels selection - has ten input channels and two output channels with variable duration of connection |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2302632A1 true FR2302632A1 (en) | 1976-09-24 |
Family
ID=9152106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7506807A Withdrawn FR2302632A1 (en) | 1975-02-27 | 1975-02-27 | Electric cyclic switch for signals channels selection - has ten input channels and two output channels with variable duration of connection |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2302632A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4384874A (en) * | 1981-04-10 | 1983-05-24 | Dattilo Donald P | Dust control apparatus with cleaning control circuit |
EP0410399A2 (en) * | 1989-07-26 | 1991-01-30 | Hughes Aircraft Company | Video preamplifier circuit |
US5409512A (en) * | 1993-11-10 | 1995-04-25 | Commerical Sweeper Systems, Inc. | Air filtration system |
-
1975
- 1975-02-27 FR FR7506807A patent/FR2302632A1/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4384874A (en) * | 1981-04-10 | 1983-05-24 | Dattilo Donald P | Dust control apparatus with cleaning control circuit |
EP0410399A2 (en) * | 1989-07-26 | 1991-01-30 | Hughes Aircraft Company | Video preamplifier circuit |
EP0410399A3 (en) * | 1989-07-26 | 1992-05-06 | Hughes Aircraft Company | Video preamplifier circuit |
US5409512A (en) * | 1993-11-10 | 1995-04-25 | Commerical Sweeper Systems, Inc. | Air filtration system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |