Patent US3204029A successfully refreshed from Google Patents.
US3204029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed synchronous digital data transmission
Assignee: ACF Industries Inc
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Filing: 1962-02-21
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Granted: 1965-08-31
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Expires: 1982-02-21
Abstract
No abstract record available.
Inventors
- 👤 William M Groff
- 👤 Earl D Gibson
- 👤 Richard C Powers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:52
CPC Classifications
H; H04; H04L; H04L27/00; H04L27/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A DIGITAL DATA TRANSMISSION SYSTEM COMPRISING: (A) A TRANSMITTER AND A RECEIVER ADAPTED TO BE COUPLED TO A COMMUNICATION MEDIUM; SAID TRANSMITTER INCLUDING; (B) MEANS FOR RECEIVING BINARY DIGITAL DATA, (C) MEANS FOR GENERATING A CARRIER WAVE AND SYNCHRONIZING THE CARRIER WAVE AND THE DIGITAL DATA WITH EACH OTHER, (D) CONVERTING MEANS CONNECTED TO SAID DATA RECEIVING MEANS FOR PRODUCING A WAVE IN WHICH ONE BINARY VALUE OF THE DATA IS REPRESENTED BY A TRANSITION FROM ONE VOLTAGE LEVEL TO ANOTHER AND THE OTHER BINARY VALUE IS REPRESENTED BY NO TRANSITION, (E) MODULATING MEANS CONNECTED TO SAID CONVERTING MEANS AND CARRIER GENERATING MEANS FOR GENERATING A SUPPRESSED-CARRIER VESTIGIAL-SIDEBAND MODULATED WAVE AND
Claim 2
Dependent Claim
111 words
A DIGITAL DATA TRANSMISSION SYSTEM COMPRISING: (A) A TRANSMITTER AND A RECEIVER ADAPTED TO BE COUPLED TO A COMMUNICATION MEDIUM; SAID TRANSMITTER INCLUDING; (B) MEANS FOR RECEIVING BINARY DIGITAL DATA, (C) MEANS FOR GENERATING A CARRIER WAVE AND SYNCHRONIZING THE CARRIER WAVE AND THE DIGITAL DATA WITH EACH OTHER, (D) CONVERTING MEANS CONNECTED TO SAID DATA RECEIVING MEANS FOR PRODUCING A WAVE IN WHICH ONE BINARY VALUE OF THE DATA IS REPRESENTED BY A TRANSITION FROM ONE VOLTAGE LEVEL TO ANOTHER AND THE OTHER BINARY VALUE IS REPRESENTED BY NO TRANSITION, (E) MODULATING MEANS CONNECTED TO SAID CONVERTING MEANS AND CARRIER GENERATING MEANS FOR GENERATING A SUPPRESSED-CARRIER VESTIGIAL-SIDEBAND MODULATED WAVE AND
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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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |