US4742348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triangular matrix device for the assignment of priorities
Assignee: Siemens AG
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Filing: 1985-09-03
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Granted: 1988-05-03
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Expires: 2005-09-03
Abstract
Abstract Device for assigning priorities having a plurality of request channels addressed by request signals, including a plurality of output channels arranged with the request channels in matrix form, each of the request channels being directly connected to one of the output channels and being connected to the respective remainder of the plurality of output channels via a respective switching element controlled by a request signal blocking the appertaining output channels.
Inventors
- 👤 Wolfgang Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:17
CPC Classifications
G; G06; G06F; G06F13/00; G06F13/14
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
104 words
Device for assigning priorities comprising: a plurality of request channels addressed by request signals, having an equal plurality of output channels arranged with the request channels in form of a triangular matrix, each of the request channels being directly connected to one of said output channels and being indirectly connected to the respective remainder of said plurality of output channels via respective switching elements timingly controlled by rotating control means in a rotating priority sequence by the respective request signal blocking the the respective remaining output channels, each switching element having two cross-connected field effect transistors connected between the respective request and output channel.
Claim 2
Dependent Claim
104 words
Device for assigning priorities comprising: a plurality of request channels addressed by request signals, having an equal plurality of output channels arranged with the request channels in form of a triangular matrix, each of the request channels being directly connected to one of said output channels and being indirectly connected to the respective remainder of said plurality of output channels via respective switching elements timingly controlled by rotating control means in a rotating priority sequence by the respective request signal blocking the the respective remaining output channels, each switching element having two cross-connected field effect transistors connected between the respective request and output channel.
Claim 3
Dependent Claim
30 words
Device according to claim 1 wherein said rotation control means have other FETs addressed in opposite phases and located at base points of said cross-coupled FETs forming said switching elements.
Claim 4
Dependent Claim
18 words
Device according to claim 2 wherein said other FETs of said rotation control means are addressed via flipflop.
Claim 5
Dependent Claim
41 words
Device according to claim 1 including flip-flops connected with the respective switching elements and having flip-flop states, and a control circuit for holding the respective states, said control circuit having its output connected to the input of the rotation control means.
Claim 6
Dependent Claim
25 words
Device according to claim 4 wherein each of the switching elements includes a control circuit having additional FETs connected to base points of said flipflop.
Claim 7
Dependent Claim
29 words
Device according to claim 4 including a memory unit for addressing all of the control circuits, and address lines connected to said memory unit for addressing said memory unit.
Claim 8
Dependent Claim
20 words
Device according to claim 4 comprising respective comparators having their outputs connected to the inputs of the respective control circuits.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-03 | 1991-11-02 | 1992-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-03 | 1995-11-02 | 1996-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-03 | 1999-11-02 | 2000-05-03 | $7700.00 | Window Closed / Lapsed |