GB723139A - Improvements in or relating to apparatus responsive to electric signals of the pulsetype - Google Patents
Improvements in or relating to apparatus responsive to electric signals of the pulsetypeInfo
- Publication number
- GB723139A GB723139A GB829052A GB829052A GB723139A GB 723139 A GB723139 A GB 723139A GB 829052 A GB829052 A GB 829052A GB 829052 A GB829052 A GB 829052A GB 723139 A GB723139 A GB 723139A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulses
- lead
- switches
- input
- pulsetype
- 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
- 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
- H03K17/52—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of gas-filled tubes
Landscapes
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Abstract
723,139. Automatic-exchange systems. GENERAL ELECTRIC CO., Ltd., and GARDNER, E. April 1, 1953 [April 1, 1952], No. 8290/52. Class 40 (4). [Also in Group XL (c)] The Figure shows part of an electronic exchange system which is duplicated for each channel through the exchange. Pulses are applied to each input 5 of a series of ten switches 4, the phase of the input being characteristic of any given switch, and pulses of the same frequency as applied at 2 in common to all the switches. Each input 3 has a pulse train applied to it which has a higher frequency than that applied to lead 2 and a phase which is characteristic of its associated switch. The switches 4 each comprise a coincidence and gating circuit, Fig. 2 (not shown) (see Group XL (c) ), so that on coincidence of a pulse at any given pair of leads 2 and 5 the pulse train on the associated lead 3 is passed to the output lead 1. Only one gate can be opened at any given time and the pulses on lead 1 after being modulated are multiplexed with pulses from similar units.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB829052A GB723139A (en) | 1952-04-01 | 1952-04-01 | Improvements in or relating to apparatus responsive to electric signals of the pulsetype |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB829052A GB723139A (en) | 1952-04-01 | 1952-04-01 | Improvements in or relating to apparatus responsive to electric signals of the pulsetype |
Publications (1)
Publication Number | Publication Date |
---|---|
GB723139A true GB723139A (en) | 1955-02-02 |
Family
ID=9849681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB829052A Expired GB723139A (en) | 1952-04-01 | 1952-04-01 | Improvements in or relating to apparatus responsive to electric signals of the pulsetype |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB723139A (en) |
-
1952
- 1952-04-01 GB GB829052A patent/GB723139A/en not_active Expired
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