US3474442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Format generator circuit
Assignee: Xerox Corp
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Filing: 1966-10-03
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Granted: 1969-10-21
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Expires: 1986-10-03
Abstract
No abstract record available.
Inventors
- 👤 James D Centanni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:47
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/41; H04N1/411; H04N1/413; H04N1/419; G; G06; G06T; G06T9/00; G06T9/005; H03; H03M; H03M7/00; H03M7/30; H03M7/40; H03M7/42; H03M7/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
IN A BINARY ENCODER FOR GENERATING CODE WORD PATTERNS FOR INFORMATION RUN LENGTHS IN ACCORDANCE WITH THE STATISTICAL PROBABILITY OF OCCURENCE THEREOF, SAID BINARY ENCODER INCLUDING SHIFT REGIISTER MEANS FOR MONITORING THE INPUT BINARY DIGITS OF A FIRST AND SECOND BINARY LEVEL AND SHIFT REGISTER/COUNTERS MEANS COUPLED TO SAID SHIFT REGISTER MEANS FOR GENERATING SAID CODE WORD PATTERNS, A FORMAT GENERATOR COMPRISING: A FIRST PLURALITY OF GATING MEANS COUPLED TO SAID SHIFT REGISTER/COUNTER MEANS TO MONITOR THE POLARITY OF THE BINARY DIGITS IN SAID CODE WORD PATTERNS, A SECOND PLURALITY OF GATING MEANS COUPLED TO SAID SHIFT REGISTER MEANS FOR MONITORING THE POLARITY OF THE BINARY DIGITS IN THE INPUT INFORMATION RUN LENGTHS, COUNTER MEANS COUPLED TO SAID FIRST AND SECOND PLURALITY OF GATING MEANS FOR COUNTING THE NUMBER OF BINARY DIGITS IN EACH OF THE INFORMATION RUN LENGTHS, AND A BINARY-TO-DECIMAL DECODER MEANS COUPLED TO SAID COUNTER MEANS FOR GENERATING FORMAT LEVELS IN RESPONSE TO SAID COUNTING MEANS WHEREIN SAID FORMAT LEVELS CONTROL THE OPERATION OF THE SHIFT REGISTER/ COUNTER MEANS WHEREBY THE HIGHER THE PROBABILITY OF OCCURRENCE OF A PARTICULAR INFORMATION RUN LENGTH WILL RESULT IN A SHORTER CODE WORD PATTERN REPRESENTATIVE THEREOF.
Claim 2
Dependent Claim
195 words
IN A BINARY ENCODER FOR GENERATING CODE WORD PATTERNS FOR INFORMATION RUN LENGTHS IN ACCORDANCE WITH THE STATISTICAL PROBABILITY OF OCCURENCE THEREOF, SAID BINARY ENCODER INCLUDING SHIFT REGIISTER MEANS FOR MONITORING THE INPUT BINARY DIGITS OF A FIRST AND SECOND BINARY LEVEL AND SHIFT REGISTER/COUNTERS MEANS COUPLED TO SAID SHIFT REGISTER MEANS FOR GENERATING SAID CODE WORD PATTERNS, A FORMAT GENERATOR COMPRISING: A FIRST PLURALITY OF GATING MEANS COUPLED TO SAID SHIFT REGISTER/COUNTER MEANS TO MONITOR THE POLARITY OF THE BINARY DIGITS IN SAID CODE WORD PATTERNS, A SECOND PLURALITY OF GATING MEANS COUPLED TO SAID SHIFT REGISTER MEANS FOR MONITORING THE POLARITY OF THE BINARY DIGITS IN THE INPUT INFORMATION RUN LENGTHS, COUNTER MEANS COUPLED TO SAID FIRST AND SECOND PLURALITY OF GATING MEANS FOR COUNTING THE NUMBER OF BINARY DIGITS IN EACH OF THE INFORMATION RUN LENGTHS, AND A BINARY-TO-DECIMAL DECODER MEANS COUPLED TO SAID COUNTER MEANS FOR GENERATING FORMAT LEVELS IN RESPONSE TO SAID COUNTING MEANS WHEREIN SAID FORMAT LEVELS CONTROL THE OPERATION OF THE SHIFT REGISTER/ COUNTER MEANS WHEREBY THE HIGHER THE PROBABILITY OF OCCURRENCE OF A PARTICULAR INFORMATION RUN LENGTH WILL RESULT IN A SHORTER CODE WORD PATTERN REPRESENTATIVE THEREOF.
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) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |