GB824753A - Improvements in or relating to ferroelectric crystal matrices and calling subscriber's telephone station identification apparatus in which such matrices are used - Google Patents
Improvements in or relating to ferroelectric crystal matrices and calling subscriber's telephone station identification apparatus in which such matrices are usedInfo
- Publication number
- GB824753A GB824753A GB38376/57A GB3837657A GB824753A GB 824753 A GB824753 A GB 824753A GB 38376/57 A GB38376/57 A GB 38376/57A GB 3837657 A GB3837657 A GB 3837657A GB 824753 A GB824753 A GB 824753A
- Authority
- GB
- United Kingdom
- Prior art keywords
- matrices
- marking
- cross
- point
- pulse
- 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
- 239000013078 crystal Substances 0.000 title 1
- 239000003990 capacitor Substances 0.000 abstract 3
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 abstract 2
- 239000011159 matrix material Substances 0.000 abstract 2
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 abstract 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 abstract 1
- 229910002113 barium titanate Inorganic materials 0.000 abstract 1
- JQOREDBDOLZSJY-UHFFFAOYSA-H bis(2,2-dioxo-1,3,2,4-dioxathialumetan-4-yl) sulfate hexahydrate Chemical compound O.O.O.O.O.O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O JQOREDBDOLZSJY-UHFFFAOYSA-H 0.000 abstract 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 abstract 1
- 230000011664 signaling Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/08—Metering calls to called party, i.e. B-party charged for the communication
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
- G11C11/22—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using ferroelectric elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0016—Arrangements providing connection between exchanges
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Interface Circuits In Exchanges (AREA)
- Devices For Supply Of Signal Current (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Abstract
824,753. Electric selective signalling systems. WESTERN ELECTRIC CO. Inc. Dec. 10, 1957 [Dec. 18, 1956], No. 38376/57. Class 40 (1). [Also in Group XXXIX] A matrix has two ferro-electric capacitors connected in series at each cross-point such that application of a voltage to the junction between the capacitors causes both to switch and deliver a pulse to each of their associated co-ordinate wires. Each cross-point of a 100 x 100 matrix identifies a subscriber to a telephone exchange and in response to 130 volts applied to the cross-point junction a pulse is put on the column wire to operate a transistor switch in a set of ten marking the thousands digit and a transistor switch in a set of ten marking the hundreds digit. The corresponding pulse put on the row wire operates transistor switches in two sets of ten marking the tens and units digits. The four operated transistor switches mark the four digits identifying the subscriber and for each digit causes the generation of a two-out-offive tone code. The dielectric of the capacitors may be barium titanate or guanidine aluminium sulphate hexahydrate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US629131A US3016425A (en) | 1956-12-18 | 1956-12-18 | Ferroelectric translator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB824753A true GB824753A (en) | 1959-12-02 |
Family
ID=24521713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB38376/57A Expired GB824753A (en) | 1956-12-18 | 1957-12-10 | Improvements in or relating to ferroelectric crystal matrices and calling subscriber's telephone station identification apparatus in which such matrices are used |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3016425A (en) |
| DE (1) | DE1029427B (en) |
| FR (1) | FR1185264A (en) |
| GB (1) | GB824753A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1212783A (en) * | 1958-07-11 | 1960-03-25 | Constr Telephoniques | Improvements to identification devices |
| DE1128034B (en) * | 1960-09-22 | 1962-04-19 | Standard Elektrik Lorenz Ag | Circuit arrangement for determining the potential deviating from a reference potential of each point of a plurality of circuit points to which potential can be applied |
| NL6614198A (en) * | 1965-10-12 | 1967-04-13 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE441725A (en) * | 1939-09-21 | |||
| NL80608C (en) * | 1951-12-14 | |||
| US2695396A (en) * | 1952-05-06 | 1954-11-23 | Bell Telephone Labor Inc | Ferroelectric storage device |
| US2749387A (en) * | 1952-07-09 | 1956-06-05 | Bell Telephone Labor Inc | Translating system |
| US2666195A (en) * | 1952-12-18 | 1954-01-12 | Bell Telephone Labor Inc | Sequential circuits |
| US2695398A (en) * | 1953-06-16 | 1954-11-23 | Bell Telephone Labor Inc | Ferroelectric storage circuits |
-
1956
- 1956-12-18 US US629131A patent/US3016425A/en not_active Expired - Lifetime
-
1957
- 1957-10-28 FR FR1185264D patent/FR1185264A/en not_active Expired
- 1957-11-09 DE DEW22201A patent/DE1029427B/en active Pending
- 1957-12-10 GB GB38376/57A patent/GB824753A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1029427B (en) | 1958-05-08 |
| FR1185264A (en) | 1959-07-31 |
| US3016425A (en) | 1962-01-09 |
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