GB1560027A - Electronic cross-point array for a telecommunication system - Google Patents
Electronic cross-point array for a telecommunication system Download PDFInfo
- Publication number
- GB1560027A GB1560027A GB45289/77A GB4528977A GB1560027A GB 1560027 A GB1560027 A GB 1560027A GB 45289/77 A GB45289/77 A GB 45289/77A GB 4528977 A GB4528977 A GB 4528977A GB 1560027 A GB1560027 A GB 1560027A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistors
- transistor
- constant
- current
- point array
- 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
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
- H04Q3/52—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements
- H04Q3/521—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements using semiconductors in the switching stages
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electronic Switches (AREA)
- Bipolar Integrated Circuits (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7612207A SE405925B (sv) | 1976-11-02 | 1976-11-02 | Elektronisk koordinatveljare framstelld i monolitutforande |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1560027A true GB1560027A (en) | 1980-01-30 |
Family
ID=20329319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB45289/77A Expired GB1560027A (en) | 1976-11-02 | 1977-10-31 | Electronic cross-point array for a telecommunication system |
Country Status (6)
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8000529A (nl) * | 1980-01-29 | 1981-08-17 | Philips Nv | Schakelmatrix. |
GB9626487D0 (en) * | 1996-12-17 | 1997-02-05 | Philips Electronics Nv | Electronic devices and their manufacture |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3047667A (en) * | 1958-02-24 | 1962-07-31 | Bell Telephone Labor Inc | Transistor crosspoint switching network |
US3463975A (en) * | 1964-12-31 | 1969-08-26 | Texas Instruments Inc | Unitary semiconductor high speed switching device utilizing a barrier diode |
US3452157A (en) * | 1966-02-01 | 1969-06-24 | Itt | Current controlled,self-seeking telephone switching system |
DE2262297C2 (de) * | 1972-12-20 | 1985-11-28 | Ibm Deutschland Gmbh, 7000 Stuttgart | Monolithisch integrierbare, logisch verknüpfbare Halbleiterschaltungsanordnung mit I↑2↑L-Aufbau |
US3995307A (en) * | 1973-12-28 | 1976-11-30 | International Business Machines Corporation | Integrated monolithic switch for high voltage applications |
US3913213A (en) * | 1974-08-02 | 1975-10-21 | Trw Inc | Integrated circuit transistor switch |
-
1976
- 1976-11-02 SE SE7612207A patent/SE405925B/xx not_active IP Right Cessation
-
1977
- 1977-10-24 AU AU29971/77A patent/AU506433B2/en not_active Expired
- 1977-10-25 US US05/845,279 patent/US4128741A/en not_active Expired - Lifetime
- 1977-10-27 DE DE19772748251 patent/DE2748251A1/de active Granted
- 1977-10-27 FR FR7732420A patent/FR2392568B1/fr not_active Expired
- 1977-10-31 GB GB45289/77A patent/GB1560027A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AU506433B2 (en) | 1980-01-03 |
AU2997177A (en) | 1979-05-03 |
US4128741A (en) | 1978-12-05 |
SE405925B (sv) | 1979-01-08 |
SE7612207L (sv) | 1978-05-03 |
DE2748251C2 (US20020095090A1-20020718-M00002.png) | 1987-04-16 |
DE2748251A1 (de) | 1978-05-03 |
FR2392568B1 (fr) | 1985-07-19 |
FR2392568A1 (fr) | 1978-12-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |