Patent US3238299A successfully refreshed from Google Patents.
US3238299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed data transmission system
Assignee: Automatic Electric Laboratories Inc
•
Filing: 1962-07-02
•
Granted: 1966-03-01
•
Expires: 1982-07-02
Abstract
No abstract record available.
Inventors
- 👤 Lender Adam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:31
CPC Classifications
H; H04; H04L; H04L25/00; H04L25/38; H04L25/40; H04L25/49; H04L25/497
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
APPARATUS FOR THE TRANSMISSION OF BINARY DATA OVER A TRANSMISSION CHANNEL OF LIMITED FREQUENCY BANDWIDTH, WHICH COMPRISES: MEANS FOR SUPPLYING TO THE TRANSMISSION CHANNEL ELECTRIC PULSES REPRESENTING BINARY DATA TO BE TRANSMITTED AT A BIT RATE UP TO ABOUT FOUR TIMES THE FREQUENCY BANDWIDTH LIMIT OF SAID CHANNEL, WHEREBY AN ELECTRIC SIGNAL IS RECEIVED HAVING THREE DETECTABLE AMPLITUDE ZONES CONSISTING OF AN INNER ZONE AND TWO OUTER ZONES, THE MAXIMUM CHANGE IN AMPLITUDE OF SAID RECEIVED SIGNAL DURING A ONE-BIT INTERVAL BEING FROM ONE
Claim 2
Dependent Claim
84 words
APPARATUS FOR THE TRANSMISSION OF BINARY DATA OVER A TRANSMISSION CHANNEL OF LIMITED FREQUENCY BANDWIDTH, WHICH COMPRISES: MEANS FOR SUPPLYING TO THE TRANSMISSION CHANNEL ELECTRIC PULSES REPRESENTING BINARY DATA TO BE TRANSMITTED AT A BIT RATE UP TO ABOUT FOUR TIMES THE FREQUENCY BANDWIDTH LIMIT OF SAID CHANNEL, WHEREBY AN ELECTRIC SIGNAL IS RECEIVED HAVING THREE DETECTABLE AMPLITUDE ZONES CONSISTING OF AN INNER ZONE AND TWO OUTER ZONES, THE MAXIMUM CHANGE IN AMPLITUDE OF SAID RECEIVED SIGNAL DURING A ONE-BIT INTERVAL BEING FROM ONE
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |