US3287499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conference circuit
Assignee: RTX Corp
•
Filing: 1963-07-01
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Granted: 1966-11-22
•
Expires: 1983-07-01
Abstract
No abstract record available.
Inventors
- 👤 Brightman Barrie
- 👤 Donald C Rimlinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:07
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/56; H04M3/561; H04M3/568
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
A CONFERENCE CIRCUIT FOR A PLURALITY OF LINES, EACH OF SAID LINES HAVING A TRANSMITTING PORTION OF TRANSMITTING A SIGNAL AND A RECEIVING PORTION FOR RECEIVING A SIGNAL; SAID CONFERENCE CIRCUIT COMPRISING A COMMON AMPLIFIER; A PLURALITY OF INDIVIDUAL INPUT MEANS EACH OF WHICH INCLUDES INPUT GATE MEANS FOR NORMALLY INDIVIDUALLY APPLYING THE SIGNAL FROM THE TRANSMITTING PORTION OF THE LINE OF A CONFERENCE AS A COMMON INPUT TO SAID AMPLIFIER; A PLURALITY OF INDIVIDUAL OUTPUT MEANS EACH OF WHICH INCLUDES A LOW-PASS FILTER, NORMALLY CLOSED OUTPUT GATE MEANS RESPONSIVE TO THE OPENING THEREOF FOR APPLYING THE COMMON OUTPUT OF SAID AMPLIFIER TO THE INPUT OF SAID FILTER, AND MEANS FOR INDIVIDUALLY APPLYING THE OUTPUT OF SAID FILTER TO THE RECEIVING PORTION OF A SEPARATE ONE OF SAID LINES; TIME SLOT GENERATING MEANS FOR GENERATING A DIFFERENT TIME SLOT FOR EACH OF SAID LINES WHICH RECUR IN A REPETITIVE TIME FRAME HAVING A REPETITION RATE WHICH IS GREATER THAN TWICE THE HIGHEST FREQUENCY COMPONENT OF ANY SIGNAL TO BE TRANS-
Claim 2
Dependent Claim
170 words
A CONFERENCE CIRCUIT FOR A PLURALITY OF LINES, EACH OF SAID LINES HAVING A TRANSMITTING PORTION OF TRANSMITTING A SIGNAL AND A RECEIVING PORTION FOR RECEIVING A SIGNAL; SAID CONFERENCE CIRCUIT COMPRISING A COMMON AMPLIFIER; A PLURALITY OF INDIVIDUAL INPUT MEANS EACH OF WHICH INCLUDES INPUT GATE MEANS FOR NORMALLY INDIVIDUALLY APPLYING THE SIGNAL FROM THE TRANSMITTING PORTION OF THE LINE OF A CONFERENCE AS A COMMON INPUT TO SAID AMPLIFIER; A PLURALITY OF INDIVIDUAL OUTPUT MEANS EACH OF WHICH INCLUDES A LOW-PASS FILTER, NORMALLY CLOSED OUTPUT GATE MEANS RESPONSIVE TO THE OPENING THEREOF FOR APPLYING THE COMMON OUTPUT OF SAID AMPLIFIER TO THE INPUT OF SAID FILTER, AND MEANS FOR INDIVIDUALLY APPLYING THE OUTPUT OF SAID FILTER TO THE RECEIVING PORTION OF A SEPARATE ONE OF SAID LINES; TIME SLOT GENERATING MEANS FOR GENERATING A DIFFERENT TIME SLOT FOR EACH OF SAID LINES WHICH RECUR IN A REPETITIVE TIME FRAME HAVING A REPETITION RATE WHICH IS GREATER THAN TWICE THE HIGHEST FREQUENCY COMPONENT OF ANY SIGNAL TO BE TRANS-
References Cited (Backward Citations)
US2199179A
Cited
US2515726A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |