US3587090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Great rapidity data transmission system
Assignee: Individual
•
Filing: 1968-05-24
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Granted: 1971-06-22
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Expires: 1988-05-24
Abstract
Abstract A data transmission system in which information originally consisting of a succession of binary elements is divided into consecutive groups having a constant number of binary elements, and in which each one of said groups is thereafter replaced, according to a predetermined relationship, by a group having a larger number of binary elements, the arrangement being such that, in the latter groups, every transition between adjacent binary elements of opposite values is preceded by at least two binary elements of the same value.
Inventors
- 👤 Jean A Labeyrie
- 👤 Antonine A Jousset
- 👤 Edouard E Asseo
- 👤 Roger Kierbel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:22
CPC Classifications
H; H04; H04L; H04L25/00; H04L25/38; H04L25/40; H04L25/49; H04L25/4906
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
118 words
A code converter for a data transmission system in which information supplied in the form of a train of binary signals is converted into a further binary signal train including as increased number of signals, comprising means for dividing said train into consecutive signal groups each including a constant number of signals, and means for translating each one of said groups according to a predetermined relationship into a further group of binary signals including a number of said signals larger than but less than twIce said constant number, said relationship being so selected that every transition between adjacent signals of opposite value in said further train is preceded by at least two binary signals of the same value.
Claim 2
Dependent Claim
118 words
A code converter for a data transmission system in which information supplied in the form of a train of binary signals is converted into a further binary signal train including as increased number of signals, comprising means for dividing said train into consecutive signal groups each including a constant number of signals, and means for translating each one of said groups according to a predetermined relationship into a further group of binary signals including a number of said signals larger than but less than twIce said constant number, said relationship being so selected that every transition between adjacent signals of opposite value in said further train is preceded by at least two binary signals of the same value.
Claim 3
Dependent Claim
106 words
A code converter as claimed in claim 1, in which said constant signal number is equal to four, in which said predetermined relationship is so selected that the two middle binary signals in each of said first-named groups are replaced by three binary signals having only one transition between them, and that the last signal in each of said first-named signal groups and the first signal in the immediately succeeding one of latter said groups are replaced by three binary signals having only one transition between them, whereby every transition in said further train is preceded by at least two binary signals of the same value.
Claim 4
Dependent Claim
104 words
A code converter as claimed in claim 1, in which each one of said first-named signal groups includes four binary signals, in which said four binary signals in each of said first-named groups are first replaced by a five-binary-signal group, and in which thereafter the last two signals in each one of latter said groups and the first two signals in the immediately succeeding one of latter said groups are replaced by a new group of five binary signals, said relationship being so selected that any transition in said further signal train in preceded by at least two binary signals of the same value.
Claim 5
Dependent Claim
47 words
A code converter as claimed in claim 1, in which each one of said first-named binary signal groups includes a number 4 lambda of binary signals, lambda being an integer number, and in which each one of said further binary signal groups includes (6 lambda +1) signals.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |