Patent US5007048A successfully refreshed from Google Patents.
US5007048A
Expired / Lapsed
US
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Circuit arrangement for avoiding overload in a wideband switching system
Assignee: US Philips Corp
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Filing: 1988-09-29
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Granted: 1991-04-09
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Expires: 2008-09-29
Abstract
Abstract For avoiding overload in a wideband switching system, in which the messages are subdivided into blocks and transmitted over wideband transmission links according to an asynchronous time-division multiplex method, it is known to arrange bidirectional counters assigned to the different subscribers in the switching nodes. By means of the count of the bidirectional counter it can be easily verified whether the maximum and mean transmission rates determined by the subscriber station are adhered to. For avoiding overload and for charge-metering the switching node comprises two up-counters--in lieu of one bidirectional counter--for each subscriber station. This enables establishing both the duration of the connection and the number of blocks transmitted during this connection. From the ratio between the counts a criterion is derived to recognize overload.
Inventors
- 👤 Wolfgang Kowalk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:42
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/54; H04L12/56; H04L12/5601; H04L12/5602; H04L12/02; H04L12/14; H04L12/1432; H04L12/1439; H04L49/00; H04L49/30; H04L49/3081; H04L2012/5629; H04L2012/5631; H04L2012/5636; H04L2012/5638; H04L2012/5639
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
80 words
A circuit arrangement for avoiding overload in a wideband switching system, in which messages are subdivided into blocks and transmitted over wideband transmission links according to an a synchronous time-division multiplex method, comprising: block counter means for counting the blocks sent by a subscriber station; connection time counter means for determining the connection time accumulated during the existing condition; and monitoring means connected to the block counter and the connection time counter for monitoring the usage of the switching system.
Claim 2
Dependent Claim
80 words
A circuit arrangement for avoiding overload in a wideband switching system, in which messages are subdivided into blocks and transmitted over wideband transmission links according to an a synchronous time-division multiplex method, comprising: block counter means for counting the blocks sent by a subscriber station; connection time counter means for determining the connection time accumulated during the existing condition; and monitoring means connected to the block counter and the connection time counter for monitoring the usage of the switching system.
Claim 3
Dependent Claim
39 words
A circuit arrangement as claimed in claim 1 in which the monitoring means comprises a program controlled circuit connected to the block and connection time counters for scanning the counts and storage means connected thereto for storing the counts.
Claim 4
Dependent Claim
16 words
A circuit arrangement as claimed in claim 1, in which the monitoring means comprises a comparator.
Claim 5
Dependent Claim
71 words
An overload detector for a switching system for connecting a plurality of stations comprising: block counter means for generating a block count representing the number of message blocks transmitted via the switching system during a connection between stations; duration counter means for generating a time count representing the duration of the connection; and means for generating an overload signal in response to the ratio of said block count and time count.
Claim 6
Dependent Claim
71 words
An overload detector for a switching system for connecting a plurality of stations comprising: block counter means for generating a block count representing the number of message blocks transmitted via the switching system during a connection between stations; duration counter means for generating a time count representing the duration of the connection; and means for generating an overload signal in response to the ratio of said block count and time count.
Claim 7
Dependent Claim
18 words
The overload detector of claim 4 comprising charge metering means responsive to the block count and time count.
Claim 8
Dependent Claim
24 words
An overload detector as set forth in claim 4 comprising means for determining a moving average of said ratio over a selected time interval.
Claim 9
Dependent Claim
79 words
An overload detector for a switching system for connecting a plurality of stations comprising: block counter means for generating a block count representing the number of message blocks transmitted via the switching system during a connection between stations; duration counter means for generating a time count representing the duration of the connection; and comparator means responsive to the differences between said block count and said time count for generating an overload signal when said difference exceeds a predetermined value
Claim 10
Dependent Claim
79 words
An overload detector for a switching system for connecting a plurality of stations comprising: block counter means for generating a block count representing the number of message blocks transmitted via the switching system during a connection between stations; duration counter means for generating a time count representing the duration of the connection; and comparator means responsive to the differences between said block count and said time count for generating an overload signal when said difference exceeds a predetermined value
Claim 11
Dependent Claim
18 words
The overload detector of claim 7 comprising charge metering means responsive to the block count and time count.
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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) | 1994-04-08 | 1994-10-08 | 1995-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-08 | 1998-10-08 | 1999-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-08 | 2002-10-08 | 2003-04-09 | $7700.00 | Window Closed / Lapsed |