US3302035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission system
Assignee: Electronic Associates Inc
•
Filing: 1963-04-30
•
Granted: 1967-01-31
•
Expires: 1983-04-30
Abstract
No abstract record available.
Inventors
- 👤 Harold R Greene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:21
CPC Classifications
H; H04; H04L; H04L25/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
234 words
A SYSTEM FOR TRANSMITTING BINARY INFORMATION IN THE FORM OF BITS HAVING FIRST AND SECOND STATES, COMPRISING AT LEAST ONE TRANSMISSION LINE HAVING INPUT TERMINALS AND OUTPUT TERMINALS, INPUT MEANS HAVING SAID BITS APPLIED THERETO, SAID INPUT MEANS BEING CONNECTED TO SAID INPUT TERMINALS TO PROVIDE A FIRST INCIDENT WAVE ON SAID LINE CORRESPONDING TO A FIRST STATE BIT AND TO PROVIDE A SECOND INCIDENT WAVE ON SAID LINE CORRESPONDING TO A SECOND STATE BIT, THE IMPEDANCE ACROSS SAID INPUT TERMINALS BEING SUBSTANTIALLY ZERO DURING THE TIME OF A FIRST STATE BIT AND BEING OF VALUE OTHER THAN ZERO DURING THE TIME OF A SECOND STATE BIT, A PLURALITY OF LOGICAL ELEMENTS EACH OPERABLE BETWEEN TWO STABLE STATES AND CONNECTED TO DIFFERING POINTS ON SAID TRANSMISSION LINE, MEANS INCLUDING A DIODE CONNECTED ACROSS SAID OUTPUT TERMINALS AND BIASED TO BE CONDUCTIVE ONLY FOR A FIRST REFLECTION OF EACH OF SAID FIRST INCIDENT WAVES PRODUCED WHEN THE IMPEDANCE ACROSS SAID INPUT TERMINALS IS SUBSTANTIALLY ZERO, AND MEANS INCLUDING A SOURCE OF SUPPLY CONNECTED TO SAID TRANSMISSION LINE FOR PROVIDING AT SAID OUTPUT TERMINALS FOR EACH OF SAID FIRST INCIDENT WAVES A TERMINATION IMPEDANCE GREATER IN MAGNITUDE THAN THE CHARACTERISTIC IMPEDANCE OF SAID TRANSMISSION LINE WHEREBY EACH OF SAID FIRST AND SAID SECOND INCIDENT WAVES IS OF SUFFICIENT MAGNITUDE TO FULLY SWITCH EACH OF SAID LOGICAL ELEMENTS FROM ONE TO THE OTHER OF ITS STABLE STATES.
Claim 2
Independent Claim
234 words
A SYSTEM FOR TRANSMITTING BINARY INFORMATION IN THE FORM OF BITS HAVING FIRST AND SECOND STATES, COMPRISING AT LEAST ONE TRANSMISSION LINE HAVING INPUT TERMINALS AND OUTPUT TERMINALS, INPUT MEANS HAVING SAID BITS APPLIED THERETO, SAID INPUT MEANS BEING CONNECTED TO SAID INPUT TERMINALS TO PROVIDE A FIRST INCIDENT WAVE ON SAID LINE CORRESPONDING TO A FIRST STATE BIT AND TO PROVIDE A SECOND INCIDENT WAVE ON SAID LINE CORRESPONDING TO A SECOND STATE BIT, THE IMPEDANCE ACROSS SAID INPUT TERMINALS BEING SUBSTANTIALLY ZERO DURING THE TIME OF A FIRST STATE BIT AND BEING OF VALUE OTHER THAN ZERO DURING THE TIME OF A SECOND STATE BIT, A PLURALITY OF LOGICAL ELEMENTS EACH OPERABLE BETWEEN TWO STABLE STATES AND CONNECTED TO DIFFERING POINTS ON SAID TRANSMISSION LINE, MEANS INCLUDING A DIODE CONNECTED ACROSS SAID OUTPUT TERMINALS AND BIASED TO BE CONDUCTIVE ONLY FOR A FIRST REFLECTION OF EACH OF SAID FIRST INCIDENT WAVES PRODUCED WHEN THE IMPEDANCE ACROSS SAID INPUT TERMINALS IS SUBSTANTIALLY ZERO, AND MEANS INCLUDING A SOURCE OF SUPPLY CONNECTED TO SAID TRANSMISSION LINE FOR PROVIDING AT SAID OUTPUT TERMINALS FOR EACH OF SAID FIRST INCIDENT WAVES A TERMINATION IMPEDANCE GREATER IN MAGNITUDE THAN THE CHARACTERISTIC IMPEDANCE OF SAID TRANSMISSION LINE WHEREBY EACH OF SAID FIRST AND SAID SECOND INCIDENT WAVES IS OF SUFFICIENT MAGNITUDE TO FULLY SWITCH EACH OF SAID LOGICAL ELEMENTS FROM ONE TO THE OTHER OF ITS STABLE STATES.
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |