US3281828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encoder with non-linear quantization
Assignee: NEC Corp
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Filing: 1963-08-27
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Granted: 1966-10-25
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Expires: 1983-08-27
Abstract
No abstract record available.
Inventors
- 👤 Kaneko Hisashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:17
CPC Classifications
H; H04; H04B; H04B14/00; H04B14/02; H04B14/04; H04B14/046; H04B14/048; H03; H03M; H03M1/00; H03M1/12; H03M1/50
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
74 words
A COUNTER-TYPE CODER ENCODING A SAMPLE VOLTAGE OF AN ANALOGUE SIGNAL COMPRISING: MEANS FOR STORING SAID SAMPLE VOLTAGE FOR A PREDETERMINED TIME INTERVAL; MEANS INCLUDING A FIXED VOLTAGE SOURCE AND A SHUNT CAPACITOR AND RESISTOR FOR PRODUCING AN EXPONENTIALLY DECREASING REFERENCE VOLTAGE; MEANS FOR INITIATING A COMPARISON BETWEEN SAID SAMPLE VOLTAGE AND SAID REFERENCE VOLTAGE AT A TIME COINCIDENT WITH THE LEADING EDGE OF SAID EXPONENTIALLY DECREASING VOLTAGE AND FOR PRODUCING AN OUTPUT SIGNAL
References Cited (Backward Citations)
US2787418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |