Patent JPS5622505A successfully refreshed from Google Patents.
US3258667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase shift decoder for a servo control
Assignee: —
•
Filing: —
•
Granted: 1966-06-28
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Expires: 1983-06-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:16
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/33; H; H03; H03M; H03M1/00; H03M1/12; H03M1/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A DIGITAL-TO-ANALOGUE CONVERTER COMPRISING MEANS FOR GENERATING A STRING OF REGULARLY SPACED MASTER PULSES, A REFERENCE SCALING CHANNEL CONNECTED TO RECEIVE AND RESPOND TO ALL OF SAID MASTER PULSES, MEANS FOR GENERATING IN THE REFERENCE CHANNEL A REFERENCE WAVEFORM WHICH CHANGES BETWEEN TWO LEVELS IN RESPONSE TO A SPECIFIED NUMBER OF MASTER PULSES, MEANS FOR GENERATING A TRAIN OF INFORMATION PULSES, A CONTROL SCALING CHANNEL, MEANS FOR INTRODUCING THE MASTER PULSES INTO THE CONTROL CHANNEL, MEANS CONNECTED TO RECEIVE SAID INFORMATION PULSES AND FOR DELETING THE RESPONSE TO ONE MASTER PULSE IN THE CONTROL CHANNEL FOR EACH PULSE IN THE INFORMATION PULSE TRAIN, AND MEANS FOR GENERATING A CONTROL WAVEFORM IN THE CONTROL CHANNEL WHICH CHANGES BETWEEN TWO LEVEL IN RESPONSE TO THE SAID SPECIFIED NUMBER OF PULSES, WHEREBY A PHASE SHAFT BETWEEN SAID REFERENCE AND CONTROL WAVEFORMS IS OBTAINED AS A FUNCTION OF THE NUMBER OF INFORMATION PULSES.
Claim 2
Dependent Claim
149 words
A DIGITAL-TO-ANALOGUE CONVERTER COMPRISING MEANS FOR GENERATING A STRING OF REGULARLY SPACED MASTER PULSES, A REFERENCE SCALING CHANNEL CONNECTED TO RECEIVE AND RESPOND TO ALL OF SAID MASTER PULSES, MEANS FOR GENERATING IN THE REFERENCE CHANNEL A REFERENCE WAVEFORM WHICH CHANGES BETWEEN TWO LEVELS IN RESPONSE TO A SPECIFIED NUMBER OF MASTER PULSES, MEANS FOR GENERATING A TRAIN OF INFORMATION PULSES, A CONTROL SCALING CHANNEL, MEANS FOR INTRODUCING THE MASTER PULSES INTO THE CONTROL CHANNEL, MEANS CONNECTED TO RECEIVE SAID INFORMATION PULSES AND FOR DELETING THE RESPONSE TO ONE MASTER PULSE IN THE CONTROL CHANNEL FOR EACH PULSE IN THE INFORMATION PULSE TRAIN, AND MEANS FOR GENERATING A CONTROL WAVEFORM IN THE CONTROL CHANNEL WHICH CHANGES BETWEEN TWO LEVEL IN RESPONSE TO THE SAID SPECIFIED NUMBER OF PULSES, WHEREBY A PHASE SHAFT BETWEEN SAID REFERENCE AND CONTROL WAVEFORMS IS OBTAINED AS A FUNCTION OF THE NUMBER OF INFORMATION PULSES.
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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) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |