US4539657A
Expired / Lapsed
US
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Memory system
Assignee: Raytheon Co
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Filing: 1983-09-06
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Granted: 1985-09-03
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Expires: 2003-09-06
Abstract
Abstract Apparatus for storing a periodic signal and for recycling complete cycle portions of such stored periodic signal is provided, such apparatus comprising: means for converting an input sinusoidal signal into a corresponding first train of pulses; means for producing a second train of pulses representative of samples of the input sinusoidal signal; means for producing a signal related to the difference in time between the leading edge of the first train of pulses and the leading edge of the second train of pulses to provide a control signal related to a time interval between a first time such time difference is less than a predetermined value and a second later time such time difference is less than such predetermined value; storage means; and means, responsive to the control signals for recycling complete cycles of the first train of pulses through the storage means.
Inventors
- 👤 Robin P. Nicholls
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:33
CPC Classifications
G; G11; G11C; G11C27/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
143 words
Apparatus for storing a periodic signal and for recycling complete cycle portions of such stored periodic signal is provided, such apparatus comprising: means for converting an input sinusoidal signal into a corresponding first train of pulses; means for producing a second train of pulses repre-sentative of samples of the input sinusoidal signal; means for producing a signal related to the difference in time between the leading edge of the first train of pulses and the leading edge of the second train of pulses to provide a control signal related to a time interval between a first time such time difference is less than a predetermined value and a second later time such time difference is less than such predetermined value; storage means; and means, responsive to the control signal, for recycling complete cycles of the first train of pulses through the storage means.
Claim 2
Dependent Claim
143 words
Apparatus for storing a periodic signal and for recycling complete cycle portions of such stored periodic signal is provided, such apparatus comprising: means for converting an input sinusoidal signal into a corresponding first train of pulses; means for producing a second train of pulses repre-sentative of samples of the input sinusoidal signal; means for producing a signal related to the difference in time between the leading edge of the first train of pulses and the leading edge of the second train of pulses to provide a control signal related to a time interval between a first time such time difference is less than a predetermined value and a second later time such time difference is less than such predetermined value; storage means; and means, responsive to the control signal, for recycling complete cycles of the first train of pulses through the storage means.
Claim 3
Dependent Claim
137 words
Apparatus for storing a periodic signal and for recycling complete cycle portions of such stored periodic signal is provided, such apparatus comprising: (a) means for converting a received periodic signal into a corresponding first train of pulses; (b) means for producing a second train of pulses representative of periodic samples of the periodic signal; (c) storage means; (d) means for coupling the first train of pulses to the storage means for storage therein during a first period of time; (e) means for producing a control signal related to the difference in time coincidence between the first and second trains of pulses; and (f) means responsive to the control signal, for recycling through the storage means during a second period of time complete cycles of a portion of the first train of pulses stored in the storage means.
Claim 4
Dependent Claim
137 words
Apparatus for storing a periodic signal and for recycling complete cycle portions of such stored periodic signal is provided, such apparatus comprising: (a) means for converting a received periodic signal into a corresponding first train of pulses; (b) means for producing a second train of pulses representative of periodic samples of the periodic signal; (c) storage means; (d) means for coupling the first train of pulses to the storage means for storage therein during a first period of time; (e) means for producing a control signal related to the difference in time coincidence between the first and second trains of pulses; and (f) means responsive to the control signal, for recycling through the storage means during a second period of time complete cycles of a portion of the first train of pulses stored in the storage means.
Claim 5
Dependent Claim
45 words
The apparatus recited in claim 2 wherein the recycling means includes means, responsive to the control signal, for producing a signal representative of the portion of the first train of pulses stored in the storage means during the first time period having a complete cycle.
Claim 6
Dependent Claim
144 words
Apparatus for storing a periodic signal and for recycling complete cycle portions of such stored periodic signal is provided, such apparatus comprising: (a) means for converting a received periodic signal into a corresponding first train of pulses; (b) means for producing a second train of pulses representative of periodic samples of the periodic signal; (c) storage means; (d) means for coupling the first train of pulses to the storage means for storage therein during a first period of time, such first train of pulses having a repeatable binary pattern; (e) means for producing a control signal related to the difference in time coincidence between the first and second train of pulses; and (f) means, responsive to the control signal for recycling through the storage means during a second period of time a portion of the first train of pulses having the repeatable binary pattern.
Claim 7
Dependent Claim
144 words
Apparatus for storing a periodic signal and for recycling complete cycle portions of such stored periodic signal is provided, such apparatus comprising: (a) means for converting a received periodic signal into a corresponding first train of pulses; (b) means for producing a second train of pulses representative of periodic samples of the periodic signal; (c) storage means; (d) means for coupling the first train of pulses to the storage means for storage therein during a first period of time, such first train of pulses having a repeatable binary pattern; (e) means for producing a control signal related to the difference in time coincidence between the first and second train of pulses; and (f) means, responsive to the control signal for recycling through the storage means during a second period of time a portion of the first train of pulses having the repeatable binary pattern.
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) | 1988-09-02 | 1989-03-04 | 1989-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-02 | 1993-03-04 | 1993-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-02 | 1997-03-04 | 1997-09-03 | $7700.00 | Window Closed / Lapsed |