US4653047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communication subsystem
Assignee: ITT Inc
•
Filing: 1985-02-25
•
Granted: 1987-03-24
•
Expires: 2005-02-25
Abstract
Abstract A communication subsystem includes a plurality of peripheral interface devices, one or more network interface devices and, optionally, one or more gateway interface devices. Each and every interface device includes a uniform data transport controller that autonomously controls data traffic across the device associated therewith and executes all requisite communication protocol conversions.
Inventors
- 👤 Jitender K. Vij
- 👤 John A. Yanosy, Jr.
- 👤 Eugene P. Gerety
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:37
CPC Classifications
H; H04; H04Q; H04Q11/00; H04Q11/04; H04Q11/0407; H04L; H04L12/00; H04L12/54; H04L12/56
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
166 words
A communication subsystem, said subsystem comprising: means for interfacing with a plurality of peripherals, said peripheral interfacing means including at least one peripheral interface device, each said peripheral interface devices interconnecting with a plurality of peripherals, each said peripheral interface device including means for multiplexing/demultiplexing voice and data information; means for interfacing with a networking medium, said networking medium interfacing means including at least one network interface device; means for establishing an intrasubsystem communication path between and among said peripheral interface devices and said network medium interface devices; a voice communication bus, said voice communication bus connecting to said peripheral interface devices whereby voice communication can be established with a network external to said subsystem; a data communication bus, said data communication bus connecting to said network interface devices whereby data communication can be established with a network external to said subsystem; and means, substantially uniformly distributed among said peripheral interface devices and said network interface devices, for controlling communication traffic within and across said subsystem.
Claim 2
Dependent Claim
166 words
A communication subsystem, said subsystem comprising: means for interfacing with a plurality of peripherals, said peripheral interfacing means including at least one peripheral interface device, each said peripheral interface devices interconnecting with a plurality of peripherals, each said peripheral interface device including means for multiplexing/demultiplexing voice and data information; means for interfacing with a networking medium, said networking medium interfacing means including at least one network interface device; means for establishing an intrasubsystem communication path between and among said peripheral interface devices and said network medium interface devices; a voice communication bus, said voice communication bus connecting to said peripheral interface devices whereby voice communication can be established with a network external to said subsystem; a data communication bus, said data communication bus connecting to said network interface devices whereby data communication can be established with a network external to said subsystem; and means, substantially uniformly distributed among said peripheral interface devices and said network interface devices, for controlling communication traffic within and across said subsystem.
Claim 3
Dependent Claim
23 words
Subsystem as claimed in claim 1 wherein said intrasubsystem communication path establishing means includes: a masterless multiple access contention bus with collision detection.
Claim 4
Dependent Claim
31 words
Subsystem as claimed in claim 2 wherein said masterless bus includes: a data transport medium; and a collision detection medium, said collision detection medium being distinct from said data transport medium.
Claim 5
Dependent Claim
15 words
Subsystem as claimed in claim 1 further comprising: means for providing access to auxiliary services.
Claim 6
Dependent Claim
21 words
Subsystem as claimed in claim 4 wherein said communication traffic controlling means is further distributed to said auxiliary services access means.
Claim 7
Dependent Claim
19 words
Subsystem as claimed in claim 1 wherein said communication traffic controlling means includes a plurality of data transport controllers.
Claim 8
Dependent Claim
67 words
Subsystem as claimed in claim 6 wherein each said data transport controller comprises: a device interface controller; a bus controller; a microcomputer, said microcomputer having direct connection with said device interface controller and said bus controller only for exchanging interrupt and channel attention signals therewith; and a storage medium, said storage medium being interconnected with device interface controller and said bus controller via separate dedicated address/data buses.
Claim 9
Dependent Claim
33 words
Subsystem as claimed in claim 6 wherein each said data transport controller associated with each said peripheral interface device includes: means for autonomously controlling all communication traffic of said associated peripheral interface device.
Claim 10
Dependent Claim
28 words
Subsystem as claimed in claim 8 wherein each said data transport controller associated with each said peripheral interface device includes: means for executing a single communication protocol conversion.
Claim 11
Dependent Claim
28 words
Subsystem as claimed in claim 6 wherein each said data transport controller associated with each said peripheral interface device includes: means for executing a single communication protocol conversion.
Claim 12
Dependent Claim
33 words
Subsystem as claimed in claim 6 wherein each said peripheral interface device includes: means for interfacing with a set of peripherals, each peripheral of said set operating according to the same communication protocol.
Claim 13
Dependent Claim
24 words
Subsystem as claimed in claim 6 further comprising: means, associated with each said peripheral interface device, for interfacing with a plurality of subscriber lines.
Claim 14
Dependent Claim
33 words
Subsystem as claimed in claim 6 wherein each said data transport controller associated with each said network interface device includes: means for autonomously controlling all communication traffic of said associated network interface device.
Claim 15
Dependent Claim
26 words
Subsystem as claimed in claim 6 wherein each said data transport controller includes: means for autonomously controlling all communication traffic of said interface device associated therewith.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-23 | 1990-09-22 | 1991-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-23 | 1994-09-22 | 1995-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-23 | 1998-09-22 | 1999-03-24 | $7700.00 | Window Closed / Lapsed |