US5293378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parallel multi-line packet transmission system
Assignee: NEC Corp
•
Filing: 1992-09-14
•
Granted: 1994-03-08
•
Expires: 2012-09-14
Abstract
Abstract A packet transmission system wherein a packet can be transmitted at a high rate over a long transmission distance using a transmission medium which is economical and easy to handle. Under the control of a transmission controller, a separating circuit divides a packet of a packet signal into six payloads to make six transmission frames and adds a start delimiter SD and an end delimiter ED to the first and last transmission frames, and four transmitters send out the six transmission frames in accordance with sequence numbers at a rate at which the signal can be transmitted by way of time division transmission lines. Under the control of a reception controller, four receivers receive the transmission frames, and a restoring circuit assembles the transmission frames back into the original packet signal in accordance with the sequence numbers and the delimiter information.
Inventors
- 👤 Hiroshi Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:17
CPC Classifications
H; H04; H04L; H04L47/00; H04L47/10; H04L47/34; H04L9/00; H04L9/40; H04L47/17
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
223 words
A parallel multi-line packet transmission system, comprising: N time division transmission lines, N being an integral number equal to or greater than 2, which have successive sequence numbers applied thereto in advance; and transmitter/receiver means for transmitting a packet signal by way of said time division transmission lines, said transmitter/receiver means including: separating means for dividing a packet of the packet signal into M payloads for the packet transmission and outputting the M payloads as M transmission frames, M being an integral number equal to or greater than 2; transmitting means for adding packet length information to the original packet signal as a delimiter information, adding to each of said M transmission frames a signal representing whether or not transmission of said packet signal is started in the transmission frame, coding the outputs of said separating means, transmitting them parallelly at a predetermined rate by way of said time division transmission lines, and sending out M transmission frames into the N time division transmission lines in order of the sequence numbers; receiving means for receiving the outputs of said transmitting means by way of said time division transmission lines and decoding the received outputs; and restoring means for assembling the M transmission frames received from said N time division transmission lines back into the original packet signal in accordance with the sequence numbers.
Claim 2
Dependent Claim
223 words
A parallel multi-line packet transmission system, comprising: N time division transmission lines, N being an integral number equal to or greater than 2, which have successive sequence numbers applied thereto in advance; and transmitter/receiver means for transmitting a packet signal by way of said time division transmission lines, said transmitter/receiver means including: separating means for dividing a packet of the packet signal into M payloads for the packet transmission and outputting the M payloads as M transmission frames, M being an integral number equal to or greater than 2; transmitting means for adding packet length information to the original packet signal as a delimiter information, adding to each of said M transmission frames a signal representing whether or not transmission of said packet signal is started in the transmission frame, coding the outputs of said separating means, transmitting them parallelly at a predetermined rate by way of said time division transmission lines, and sending out M transmission frames into the N time division transmission lines in order of the sequence numbers; receiving means for receiving the outputs of said transmitting means by way of said time division transmission lines and decoding the received outputs; and restoring means for assembling the M transmission frames received from said N time division transmission lines back into the original packet signal in accordance with the sequence numbers.
Claim 3
Dependent Claim
44 words
A parallel multi-line packet transmission system as claimed in claim 1, wherein said restoring means includes multiplexing means for assembling the M transmission frames received from said N time division transmission lines back into the original packet signal in accordance with the sequence numbers.
Claim 4
Dependent Claim
47 words
A parallel multi-line packet transmission system as claimed in claim 2, wherein said multiplexing means includes means for assembling the M transmission frames received from said N time division transmission lines back into the original packet signal in accordance with the sequence numbers and said delimiter information.
Claim 5
Dependent Claim
37 words
A parallel multi-line packet transmission system as claimed in claim 3, wherein the delimiter information is a start delimiter and an end delimiter representative of a start and an end of the packet of the packet signal.
Claim 6
Dependent Claim
31 words
A parallel multi-line packet transmission system as claimed in claim 3, wherein each of the M transmission frames includes a plurality of subframes to which the delimiter information can be added.
Claim 7
Dependent Claim
169 words
A parallel multi-line packet transmission system, comprising: N time division transmission lines, N being an integral number equal to or greater than 2; which have successive sequence numbers applied thereto in advance; and transmitter/receiver means for transmitting a packet signal by way of said time division transmission lines, said transmitter/receiver means including: separating means for dividing a packet of the packet signal into payloads for the packet transmission and outputting the payloads as M transmission frames, M being an integral number equal to or greater than 2; transmitting means for coding the outputs of said separating means and transmitting them parallelly at a predetermined rate by way of said time division transmission lines; receiving means for receiving the outputs of said transmitting means by way of said time division transmission lines and decoding the received outputs; and restoring means for assembling the output of said receiving means back into the original packet signal, wherein each of the M transmission frames includes a plurality of subframes each including a payload.
Claim 8
Dependent Claim
169 words
A parallel multi-line packet transmission system, comprising: N time division transmission lines, N being an integral number equal to or greater than 2; which have successive sequence numbers applied thereto in advance; and transmitter/receiver means for transmitting a packet signal by way of said time division transmission lines, said transmitter/receiver means including: separating means for dividing a packet of the packet signal into payloads for the packet transmission and outputting the payloads as M transmission frames, M being an integral number equal to or greater than 2; transmitting means for coding the outputs of said separating means and transmitting them parallelly at a predetermined rate by way of said time division transmission lines; receiving means for receiving the outputs of said transmitting means by way of said time division transmission lines and decoding the received outputs; and restoring means for assembling the output of said receiving means back into the original packet signal, wherein each of the M transmission frames includes a plurality of subframes each including a payload.
Claim 9
Dependent Claim
29 words
A parallel multi-line packet transmission system as claimed in claim 1, wherein said separating means includes means for adding a synchronizing signal to each of the M transmission frames.
Claim 10
Dependent Claim
31 words
A parallel multi-line packet transmission system as claimed in claim 7, wherein each of the M transmission frames includes a plurality of subframes to which the delimiter information can be added.
Claim 11
Dependent Claim
31 words
A parallel multi-line packet transmission system as claimed in claim 1, wherein each of the M transmission frames includes a plurality of subframes to which the delimiter information can be added.
References Cited (Backward Citations)
US4577312A
Cited
US4703475A
Cited
US4885738A
Cited
US4999835A
Cited
US5202886A
Cited
US5065396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-03-07 | 1997-09-06 | 1998-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-07 | 2001-09-06 | 2002-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-07 | 2005-09-06 | 2006-03-08 | $7700.00 | Window Closed / Lapsed |