US3113204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parity checked shift register counting circuits
Assignee: AT&T Inc
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Filing: 1958-03-31
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Granted: 1963-12-03
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Expires: 1978-03-31
Abstract
No abstract record available.
Inventors
- 👤 Joseph A O'brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:39
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/07; G06F11/08; G06F11/10; G11; G11C; G11C19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN COMBINATION, A SOURCE OF PULSES TO BE COUNTED, FIRST AND SECOND SHIFT REGISTERS EACH HAVING A PLURALITY OF STAGES, MEANS INCLUDING FIRST INPUT LOGIC CIRCUIT MEANS COUPLED TO SAID PULSE SOURCE AND INDIVIDUAL STAGES OF EACH OF SAID SHIFT REGISTERS FOR APPLYING SUCCESSIVE DIGITS TO THE FIRST SHIFT REGISTER WHICH DIGITS ARE NUMERICALLY RELATED TO DIGITS SHIFTED OUT OF SAID FIRST SHIFT REGISTER, MEANS INCLUDING SECOND INPUT LOGIC CIRCUIT MEANS COUPLED TO SAID PULSE SOURCE AND INDIVIDUAL STAGES OF EACH OF SAID SHIFT REGISTERS FOR APPLYING SUCCESSIVE DIGITS TO SAID SECOND SHIFT REGISTER WHICH LAST-MENTIONED DIGITS ARE NUMERICALLY RELATED TO THE DIGITS SHIFTED OUT OF SAID SECOND SHIFT REGISTER IN A PARITY CORRESPONDENCE WITH THE SHIFTING ACTION IN SAID FIRST REGISTER, MEANS FOR ADVANCING DIGITS IN SAID FIRST AND SECOND SHIFT REGISTERS CONCURRENTLY, AN ALARM CIRCUIT, MEANS FOR CHECKING THE PARITY
Claim 2
Dependent Claim
142 words
IN COMBINATION, A SOURCE OF PULSES TO BE COUNTED, FIRST AND SECOND SHIFT REGISTERS EACH HAVING A PLURALITY OF STAGES, MEANS INCLUDING FIRST INPUT LOGIC CIRCUIT MEANS COUPLED TO SAID PULSE SOURCE AND INDIVIDUAL STAGES OF EACH OF SAID SHIFT REGISTERS FOR APPLYING SUCCESSIVE DIGITS TO THE FIRST SHIFT REGISTER WHICH DIGITS ARE NUMERICALLY RELATED TO DIGITS SHIFTED OUT OF SAID FIRST SHIFT REGISTER, MEANS INCLUDING SECOND INPUT LOGIC CIRCUIT MEANS COUPLED TO SAID PULSE SOURCE AND INDIVIDUAL STAGES OF EACH OF SAID SHIFT REGISTERS FOR APPLYING SUCCESSIVE DIGITS TO SAID SECOND SHIFT REGISTER WHICH LAST-MENTIONED DIGITS ARE NUMERICALLY RELATED TO THE DIGITS SHIFTED OUT OF SAID SECOND SHIFT REGISTER IN A PARITY CORRESPONDENCE WITH THE SHIFTING ACTION IN SAID FIRST REGISTER, MEANS FOR ADVANCING DIGITS IN SAID FIRST AND SECOND SHIFT REGISTERS CONCURRENTLY, AN ALARM CIRCUIT, MEANS FOR CHECKING THE PARITY
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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) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |