Patent US3876986A successfully refreshed from Google Patents.
US3876986A
Expired / Lapsed
US
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Digital addressing system
Assignee: International Standard Electric Corp
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Filing: 1974-05-01
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Granted: 1975-04-08
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Expires: 1994-05-01
Abstract
Abstract An addressing system in a master station communicates with a plurality of outstations each including at least one or more groups of devices. A memory stores for each outstation and for each set therein a value indicative of the number of addresses of the groups of devices of said set. Logic means and a counter stepped by said logic means provide the addresses of the groups of devices. The logic means uses an indicative value stored in the memory to delimit the counting.
Inventors
- 👤 Antoine Mestoussis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:15
CPC Classifications
H; H04; H04Q; H04Q9/00; H04Q9/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
210 words
An addressing system in a master station which is able to communicate with a plurality of outstations, each including at least one set of at least one group of devices, said addressing system providing the addresses of said outstations and of said at least one group of devices and adapted to address said at least one group of devices in said outstations by means of said addresses comprising: a first and second set of at least one group of devices in at least one of said outstations; memory means for storing for each of said outstations a first value and a second value indicative of the number of addresses of at least one group of devices of said first and second sets; a counter; and logic means for providing the addresses of said at least one group of devices of said first set of said at least one outstation for stepping said counter through a first number of steps equal to said first indicative value, said logic means providing the addresses of said at least one group of devices of said second set by stepping said counter through a second number of steps equal to a value corresponding to an end position of said counter minus said second indicative value.
Claim 2
Dependent Claim
210 words
An addressing system in a master station which is able to communicate with a plurality of outstations, each including at least one set of at least one group of devices, said addressing system providing the addresses of said outstations and of said at least one group of devices and adapted to address said at least one group of devices in said outstations by means of said addresses comprising: a first and second set of at least one group of devices in at least one of said outstations; memory means for storing for each of said outstations a first value and a second value indicative of the number of addresses of at least one group of devices of said first and second sets; a counter; and logic means for providing the addresses of said at least one group of devices of said first set of said at least one outstation for stepping said counter through a first number of steps equal to said first indicative value, said logic means providing the addresses of said at least one group of devices of said second set by stepping said counter through a second number of steps equal to a value corresponding to an end position of said counter minus said second indicative value.
Claim 3
Dependent Claim
21 words
An addressing system according to claim 1, wherein said second indicative value is at least equal to said first indicative value.
Claim 4
Dependent Claim
30 words
An addressing system according to claim 1, wherein to count said first number said counter is stepped from a zero position to a position corresponding to said first indicative value.
Claim 5
Dependent Claim
30 words
An addressing system according to claim 1, wherein to count said second number said counter is stepped from a position corresponding to said second indicative value to an end position.
Claim 6
Dependent Claim
34 words
An addressing system according to claim 1, wherein to count said second number said counter is stepped from a position corresponding to an end position to a position corresponding to said second indicative value.
Claim 7
Dependent Claim
69 words
An addressing system according to claim 1, wherein said master station is informed about a change of state of at least one of said devices of said groups of said second set by the reply of an addressed first group of said first set belonging to a same outstation and that said addresses of said second set are generated after the generation of the addresses of said first set.
References Cited (Backward Citations)
US3644891A
Cited
US3821706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |