GB666394A - Improvements in or relating to gaseous electric discharge devices and circuits therefor - Google Patents
Improvements in or relating to gaseous electric discharge devices and circuits thereforInfo
- Publication number
- GB666394A GB666394A GB29546/46A GB2954646A GB666394A GB 666394 A GB666394 A GB 666394A GB 29546/46 A GB29546/46 A GB 29546/46A GB 2954646 A GB2954646 A GB 2954646A GB 666394 A GB666394 A GB 666394A
- Authority
- GB
- United Kingdom
- Prior art keywords
- line
- time position
- electric discharge
- group
- relating
- 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
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/38—Cold-cathode tubes
- H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/15—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors
- H03K5/15013—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors with more than two outputs
-
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/04—Distributors combined with modulators or demodulators
- H04J3/042—Distributors with electron or gas discharge tubes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/007—Sequential discharge tubes
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Inverter Devices (AREA)
- Fire Alarms (AREA)
- Electrotherapy Devices (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
666,394. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. Sept. 26, 1947 [Oct. 3, 1946], No. 29546/46. Drawings to Specification. Class 40 (iv). [Also in Group XL (c)] A pulse modulation circuit (see Group XL (c)) comprising a cold cathode gas-filled sequence electric discharge tube is used to perform the selection process in a telecommunication system of the type described in Specification 632,375, wherein a line-finding device searches for and locks to the time position of a calling-line, and pulses at that time position modulated by designation or other signals from the calling line are demodulated before being passed to selecting apparatus responsive to designation signals and adapted to select a time position allotted to another line incoming to the system, to which connection is required. Specification 665,817, [Group XIX], is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES0180322A ES180322A1 (en) | 1946-10-03 | 1947-10-30 | IMPROVEMENTS IN OR RELATED TO GASEOUS DISCHARGE DEVICES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB275283X | 1946-10-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB666394A true GB666394A (en) | 1952-02-13 |
Family
ID=10261053
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29547/46A Expired GB665819A (en) | 1946-10-03 | 1946-10-03 | Improvements in or relating to gaseous electric discharge devices and circuits therefor |
GB29546/46A Expired GB666394A (en) | 1946-10-03 | 1946-10-03 | Improvements in or relating to gaseous electric discharge devices and circuits therefor |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29547/46A Expired GB665819A (en) | 1946-10-03 | 1946-10-03 | Improvements in or relating to gaseous electric discharge devices and circuits therefor |
Country Status (6)
Country | Link |
---|---|
US (2) | US2645680A (en) |
BE (2) | BE479962A (en) |
CH (2) | CH275283A (en) |
FR (3) | FR58461E (en) |
GB (2) | GB665819A (en) |
NL (2) | NL78124C (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL104371C (en) * | 1948-06-11 | |||
US2687496A (en) * | 1949-07-15 | 1954-08-24 | Ibm | Gaseous discharge register |
US2575517A (en) * | 1950-01-21 | 1951-11-20 | Northrop Aircraft Inc | Glow tube counting circuit |
US2679978A (en) * | 1950-01-25 | 1954-06-01 | Nat Res Dev | Pulse scaling system |
US2646523A (en) * | 1950-01-28 | 1953-07-21 | Bell Telephone Labor Inc | Multicathode gaseous discharge device |
US2675504A (en) * | 1950-03-31 | 1954-04-13 | Ibm | Gaseous discharge register |
US2641725A (en) * | 1950-06-30 | 1953-06-09 | Int Standard Electric Corp | Electronic discharge tube |
US2723365A (en) * | 1950-12-01 | 1955-11-08 | Northrop Aircraft Inc | Sectional read-out tube and circuit |
US2740921A (en) * | 1950-12-12 | 1956-04-03 | Int Standard Electric Corp | Electric discharge tubes and circuits therefor |
US2685049A (en) * | 1951-10-31 | 1954-07-27 | Ibm | Coincidence circuit |
US2848647A (en) * | 1954-06-23 | 1958-08-19 | Burroughs Corp | Multiplexing system |
US2917717A (en) * | 1955-02-04 | 1959-12-15 | Ericsson Telefon Ab L M | Modulator for amplitude modulating a pulse train |
US2920142A (en) * | 1955-06-06 | 1960-01-05 | Itt | Pulse communication system |
DE1041078B (en) * | 1955-09-07 | 1958-10-16 | Albert Jefferies Baggott | Circuit arrangement for storing and forwarding pulses |
US2919436A (en) * | 1956-03-15 | 1959-12-29 | Burroughs Corp | Multiplex measuring device |
NL7208319A (en) * | 1972-06-17 | 1973-12-19 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE550856C (en) * | 1929-03-07 | 1932-05-23 | Otto Von Bronk | Device for electrical image transmission |
US2404920A (en) * | 1940-09-27 | 1946-07-30 | Research Corp | Electronic discharge apparatus |
US2432608A (en) * | 1941-03-28 | 1947-12-16 | Ncr Co | Multianode, gas-filled discharge device |
GB556079A (en) * | 1942-03-12 | 1943-09-20 | Standard Telephones Cables Ltd | Improvements relating to multi-channel electrical communication systems |
US2375830A (en) * | 1942-03-31 | 1945-05-15 | Raytheon Mfg Co | Device for producing successive electrical impulses |
US2465355A (en) * | 1943-01-27 | 1949-03-29 | George W Cook | Wave analyzer |
US2466467A (en) * | 1943-02-25 | 1949-04-05 | Ncr Co | Communication system |
US2427533A (en) * | 1943-12-31 | 1947-09-16 | Research Corp | Electronic switching device |
US2443407A (en) * | 1947-06-18 | 1948-06-15 | Jr Nathaniel B Walcs | Gaseous discharge device |
US2575370A (en) * | 1949-06-25 | 1951-11-20 | Bell Telephone Labor Inc | Cold cathode gaseous discharge device |
-
0
- BE BE479961D patent/BE479961A/xx unknown
- NL NL78125D patent/NL78125C/xx active
- FR FR957838D patent/FR957838A/fr not_active Expired
- BE BE479962D patent/BE479962A/xx unknown
- NL NL78124D patent/NL78124C/xx active
-
1946
- 1946-10-03 GB GB29547/46A patent/GB665819A/en not_active Expired
- 1946-10-03 GB GB29546/46A patent/GB666394A/en not_active Expired
-
1947
- 1947-10-03 CH CH275283D patent/CH275283A/en unknown
- 1947-10-03 CH CH283214D patent/CH283214A/en unknown
- 1947-10-03 US US777818A patent/US2645680A/en not_active Expired - Lifetime
- 1947-10-03 US US777817A patent/US2505006A/en not_active Expired - Lifetime
- 1947-12-31 FR FR58461D patent/FR58461E/en not_active Expired
- 1947-12-31 FR FR58460D patent/FR58460E/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2645680A (en) | 1953-07-14 |
US2505006A (en) | 1950-04-25 |
NL78124C (en) | |
FR957838A (en) | 1950-02-25 |
GB665819A (en) | 1952-01-30 |
CH283214A (en) | 1952-05-31 |
FR58461E (en) | 1953-11-30 |
FR58460E (en) | 1953-11-30 |
CH275283A (en) | 1951-05-15 |
BE479962A (en) | |
NL78125C (en) | |
BE479961A (en) |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB666394A (en) | Improvements in or relating to gaseous electric discharge devices and circuits therefor | |
GB932613A (en) | Switching systems between multiplex communication channels | |
GB650764A (en) | Telecommunication exchange | |
ES382769A1 (en) | Telecommunication switching systems | |
GB567864A (en) | Improvements in or relating to telecommunication exchange systems | |
JPS5754492A (en) | Incoming call detour system in private branch of exchange | |
US3428754A (en) | Conference system wherein transmitting and receiving terminals are separately connected to a talking bus | |
GB651781A (en) | Pulse telecommunication system | |
GB948929A (en) | Improvements in or relating to communication systems | |
GB680607A (en) | Toll switching telephone system | |
US2614174A (en) | Telephone system | |
GB588564A (en) | Improvements in or relating to telephone systems | |
GB710071A (en) | Electronic switching system | |
GB759692A (en) | Improvements in or relating to automatic telephone systems | |
US2875281A (en) | Telephone ringing system | |
GB756419A (en) | Improvements in or relating to electrical switching circuits | |
JPS56131290A (en) | Trunk line holding system | |
GB625483A (en) | Improvements in or relating to electrical signalling systems | |
JPS53124008A (en) | Call signal transmission system | |
GB560132A (en) | Improvements in or relating to telephone systems | |
US2396111A (en) | Telephone system | |
GB1078321A (en) | Circuit arrangements to indicate the call number of subscriber stations in telephoneexchanges | |
FR2295592A1 (en) | Conference connection establishment method - is in automatic telex exchanges using existing broadcast equipment (BE210676) | |
GB989739A (en) | A telephone system with line concentrator stations | |
JPS56132842A (en) | Communication speed matching system |