FR2412887A1 - Circuit d'expansion de terminaux commande a distance - Google Patents
Circuit d'expansion de terminaux commande a distanceInfo
- Publication number
- FR2412887A1 FR2412887A1 FR7833616A FR7833616A FR2412887A1 FR 2412887 A1 FR2412887 A1 FR 2412887A1 FR 7833616 A FR7833616 A FR 7833616A FR 7833616 A FR7833616 A FR 7833616A FR 2412887 A1 FR2412887 A1 FR 2412887A1
- Authority
- FR
- France
- Prior art keywords
- terminals
- remote control
- control terminal
- expansion circuit
- terminal expansion
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Selective Calling Equipment (AREA)
- Communication Control (AREA)
- Small-Scale Networks (AREA)
Abstract
CE CIRCUIT PERMET A N'IMPORTE LEQUEL DES TERMINAUX D'UNE PLURALITE DE TERMINAUX D'ETRE CONNECTE A UNE LIGNE DE TRANSMISSION DE DONNEES QUI NORMALEMENT NE SERT QU'A UN TERMINAL. IL VERROUILLE TOUS LES TERMINAUX SAUF CELUI QUI EST EN FONCTION DURANT LE TEMPS PRIS POUR ECHANGER LES SIGNAUX DE COMMANDE ET POUR ENTRER LES DONNEES. LES TERMINAUX SONT IDENTIFIES PAR DES TONALITES TRANSMISES SUR UNE LIGNE DE TRANSMISSION ADDITIONNELLE. APPLICATION AUX SYSTEMES DE TRAITEMENT DE DONNEES INCLUANT DES TERMINAUX DISTANTS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/863,831 US4144584A (en) | 1977-12-23 | 1977-12-23 | Remote card operated terminal extensor circuitry |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2412887A1 true FR2412887A1 (fr) | 1979-07-20 |
FR2412887B1 FR2412887B1 (fr) | 1983-06-10 |
Family
ID=25341888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7833616A Granted FR2412887A1 (fr) | 1977-12-23 | 1978-11-21 | Circuit d'expansion de terminaux commande a distance |
Country Status (7)
Country | Link |
---|---|
US (1) | US4144584A (fr) |
JP (1) | JPS5488039A (fr) |
CA (1) | CA1104227A (fr) |
DE (1) | DE2852487A1 (fr) |
FR (1) | FR2412887A1 (fr) |
GB (1) | GB2011220B (fr) |
IT (1) | IT1160348B (fr) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3731282A (en) * | 1971-08-27 | 1973-05-01 | Allied Management & Systems Co | Multifunction routing network |
US3803419A (en) * | 1972-05-01 | 1974-04-09 | Texas Instruments Inc | Optically coupled threshold monitoring system |
US3833884A (en) * | 1973-06-25 | 1974-09-03 | Ibm | Badge or credit card reading system with integral status monitoring |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3303472A (en) * | 1962-10-08 | 1967-02-07 | Control Data Corp | System and apparatus for automatic data collection |
US3314051A (en) * | 1964-05-12 | 1967-04-11 | Willcox | Selective-call data system |
US3898373A (en) * | 1971-09-09 | 1975-08-05 | Leo F Walsh | Data communication system |
US4025760A (en) * | 1975-08-14 | 1977-05-24 | Addressograph Multigraph Corporation | Security means for transaction terminal system |
US4025905A (en) * | 1975-11-28 | 1977-05-24 | Incoterm Corporation | System for on-line processing of banking transactions |
-
1977
- 1977-12-23 US US05/863,831 patent/US4144584A/en not_active Expired - Lifetime
-
1978
- 1978-10-25 CA CA314,266A patent/CA1104227A/fr not_active Expired
- 1978-10-30 JP JP13273778A patent/JPS5488039A/ja active Pending
- 1978-11-21 FR FR7833616A patent/FR2412887A1/fr active Granted
- 1978-12-05 DE DE19782852487 patent/DE2852487A1/de not_active Withdrawn
- 1978-12-06 GB GB7847446A patent/GB2011220B/en not_active Expired
- 1978-12-15 IT IT30876/78A patent/IT1160348B/it active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3731282A (en) * | 1971-08-27 | 1973-05-01 | Allied Management & Systems Co | Multifunction routing network |
US3803419A (en) * | 1972-05-01 | 1974-04-09 | Texas Instruments Inc | Optically coupled threshold monitoring system |
US3833884A (en) * | 1973-06-25 | 1974-09-03 | Ibm | Badge or credit card reading system with integral status monitoring |
Non-Patent Citations (1)
Title |
---|
EXBK/78 * |
Also Published As
Publication number | Publication date |
---|---|
US4144584A (en) | 1979-03-13 |
GB2011220B (en) | 1982-02-24 |
IT1160348B (it) | 1987-03-11 |
IT7830876A0 (it) | 1978-12-15 |
DE2852487A1 (de) | 1979-06-28 |
GB2011220A (en) | 1979-07-04 |
CA1104227A (fr) | 1981-06-30 |
JPS5488039A (en) | 1979-07-12 |
FR2412887B1 (fr) | 1983-06-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |