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US3239765A Expired / Lapsed US ⏱️ 0.0 years remaining

Phase shift counting circuits

Assignee: AT&T Inc
•
Filing: 1963-09-25
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Granted: 1966-03-08
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Expires: 1983-09-25
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Abstract

No abstract record available.

Inventors

  • 👤 Robert L Carbrey

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 16:17
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/58; G06F7/60; G06F7/68; H; H03; H03K; H03K21/00; H03K23/00; H03K23/002; H03K3/00; H03K3/02; H03K3/26; H03K3/30; H03K5/00; H03K5/156

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 137 words
A PHASE DISPLACEMENT COUNTER FOR PROVIDING A PLURALITY OF DIGIT PULSE TRAINS THE PHASES OF WHICH REPRESENT CORRESPONDING DIGIT VALVES, SAID COUNTER COMPRISING A PLURALITY OF PULSE DIVIDER STAGES, EACH OF STAGE INCLUDING MEANS FOR DIVIDING AN INCOMING PULSE TRAIN BY THE RADIX OF THE SELECTED NUMBERING SYSTEM, A SOURCE OF CLOCK PULSES, MEANS FOR APPLYING SAID CLOCK PULSES DIRECTLY TO EACH OF SAID STAGES, AND MEANS FOR INCREASING THE DIGIT VALUE REPRESENTED BY THE PULSE TRAIN FROM EACH OF SAID STAGES IN RESPONSE TO THE COINCIDENCE OF A PRESELECTED PHASE OF THE PRECEDING STAGE IN AN EVENT TO BE COUNTED, SAID INCREASING MEANS INCLUDING MEANS FOR ALTERING THE PHASE OF THE OUTPUT PULSE TRAIN FROM THAT STAGE BY A FIXED NUMBER OF SAID CLOCK PULSE PERIODS REGARDLESS OF THE PREVIOUS PHASE OF SAID OUTPUT PULSE TRAIN.
Claim 2
Dependent Claim 137 words
A PHASE DISPLACEMENT COUNTER FOR PROVIDING A PLURALITY OF DIGIT PULSE TRAINS THE PHASES OF WHICH REPRESENT CORRESPONDING DIGIT VALVES, SAID COUNTER COMPRISING A PLURALITY OF PULSE DIVIDER STAGES, EACH OF STAGE INCLUDING MEANS FOR DIVIDING AN INCOMING PULSE TRAIN BY THE RADIX OF THE SELECTED NUMBERING SYSTEM, A SOURCE OF CLOCK PULSES, MEANS FOR APPLYING SAID CLOCK PULSES DIRECTLY TO EACH OF SAID STAGES, AND MEANS FOR INCREASING THE DIGIT VALUE REPRESENTED BY THE PULSE TRAIN FROM EACH OF SAID STAGES IN RESPONSE TO THE COINCIDENCE OF A PRESELECTED PHASE OF THE PRECEDING STAGE IN AN EVENT TO BE COUNTED, SAID INCREASING MEANS INCLUDING MEANS FOR ALTERING THE PHASE OF THE OUTPUT PULSE TRAIN FROM THAT STAGE BY A FIXED NUMBER OF SAID CLOCK PULSE PERIODS REGARDLESS OF THE PREVIOUS PHASE OF SAID OUTPUT PULSE TRAIN.

References Cited (Backward Citations)

US2585722A Cited
US2740047A Cited
US2959744A Cited
US2939081A Cited
US2905906A Cited
US3011110A Cited
US3084859A Cited
US3108198A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-03-07 1969-09-06 1970-03-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-03-07 1973-09-06 1974-03-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-03-07 1977-09-06 1978-03-08 $7700.00 Window Closed / Lapsed

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