Patent US3720945A successfully refreshed from Google Patents.
US3720945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Receiver device
Assignee: Bendix Corp
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Filing: 1965-08-19
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Granted: 1973-03-13
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Expires: 1985-08-19
Abstract
Abstract 1. Apparatus for receiving signals comprising FIRST LOCATING MEANS FOR LOCATING A SIGNAL DIRECTION ALONG ONE AXIS, SECOND LOCATING MEANS FOR LOCATING SAID SIGNAL DIRECTION ALONG A SECOND AXIS, SAID LOCATING MEANS EACH COMPRISING RECEIVING MEANS CONNECTED TO AMPLIFYING MEANS, ATTENUATING MEANS TO ATTENUATE THE SIGNALS TO SAID AMPLIFYING MEANS IN PROPORTION TO THE SIGNALS FROM SAID AMPLIFYING MEANS THEREBY INCREASING THE RANGE OF SAID AMPLIFYING MEANS, DISPLAY MEANS FOR RECEIVING SAID SIGNALS FROM SAID LOCATING MEANS AND DISPLAYING THE SOURCE CORRESPONDING TO SAID SIGNAL, THE RECEIVED SIGNAL BEING PULSED, A LEADING EDGE GATE GENERATOR MEANS, SAID LEADING EDGE GATE GENERATOR MEANS BEING BETWEEN EACH OF SAID LOCATING MEANS AND SAID DISPLAY MEANS FOR SENDING ONLY THE LEADING EDGE OF THE PULSE TO THE DISPLAY MEANS, THEREBY MINIMIZING THE UNDESIRABLE EFFECTS OF REFLECTIONS OF THE SOURCE OF RADIATION FROM SURROUNDING OBJECTS.
Inventors
- 👤 H Chow
- 👤 D Payne
- 👤 W Faris
- 👤 H Lynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:17
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/02; G01S3/14; G01S3/28; G01S3/32
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
140 words
Apparatus for receiving signals comprising first locating means for locating a signal direction along one axis, second locating means for locating said signal direction along a second axis, said locating means each comprising receiving means connected to amplifying means, attenuating means to attenuate the signals to said amplifying means in proportion to the signals from said amplifying means thereby increasing the range of said amplifying means, display means for receiving said signals from said locating means and displaying the source corresponding to said signal, the received signal being pulsed, a leading edge gate generator means, said leading edge gate generator means being between each of said locating means and said display means for sending only the leading edge of the pulse to the display means, thereby minimizing the undesirable effects of reflections of the source of radiation from surrounding objects.
Claim 2
Dependent Claim
140 words
Apparatus for receiving signals comprising first locating means for locating a signal direction along one axis, second locating means for locating said signal direction along a second axis, said locating means each comprising receiving means connected to amplifying means, attenuating means to attenuate the signals to said amplifying means in proportion to the signals from said amplifying means thereby increasing the range of said amplifying means, display means for receiving said signals from said locating means and displaying the source corresponding to said signal, the received signal being pulsed, a leading edge gate generator means, said leading edge gate generator means being between each of said locating means and said display means for sending only the leading edge of the pulse to the display means, thereby minimizing the undesirable effects of reflections of the source of radiation from surrounding objects.
Claim 3
Dependent Claim
140 words
Apparatus for receiving signals comprising first locating means for locating a signal direction along one axis, second locating means for locating said signal direction along a second axis, said locating means each comprising receiving means connected to amplifying means, attenuating means to attenuate the signals to said amplifying means in proportion to the signals from said amplifying means thereby increasing the range of said amplifying means, display means for receiving said signals from said locating means and displaying the source corresponding to said signal, the received signal being pulsed, a leading edge gate generator means, said leading edge gate generator means being between each of said locating means and said display means for sending only the leading edge of the pulse to the display means, thereby minimizing the undesirable effects of reflections of the source of radiation from surrounding objects.
Claim 4
Dependent Claim
140 words
Apparatus for receiving signals comprising first locating means for locating a signal direction along one axis, second locating means for locating said signal direction along a second axis, said locating means each comprising receiving means connected to amplifying means, attenuating means to attenuate the signals to said amplifying means in proportion to the signals from said amplifying means thereby increasing the range of said amplifying means, display means for receiving said signals from said locating means and displaying the source corresponding to said signal, the received signal being pulsed, a leading edge gate generator means, said leading edge gate generator means being between each of said locating means and said display means for sending only the leading edge of the pulse to the display means, thereby minimizing the undesirable effects of reflections of the source of radiation from surrounding objects.
Claim 5
Dependent Claim
38 words
Apparatus of claim 1 with boxcar circuit means being between each leading edge gate generator means and the display means for utilizing the information contained in the leading edge of a pulse for a predetermined length of time.
Claim 6
Dependent Claim
109 words
Apparatus of claim 1 with said attenuating means comprising an attenuator being placed between each receiving means and its corresponding amplifying means, an amplitude selector means being connected to the outputs of said amplifying means, said amplitude selector means selecting the largest amplitude signal from said amplifying means, a power level switch means being connected between said amplitude selector and said attenuating means for actuating said attenuating means in accordance with the selected signal received from said amplitude selector means, squelch circuit means being connected to the output of said amplitude selector means for squelching the signal to said display means when any received signal exceeds a predetermined maximum.
Claim 7
Dependent Claim
79 words
Apparatus of claim 2 with an ''''and'''' circuit and a blocking oscillator means connected in series between each of said boxcar circuits and said display means, said blocking oscillator means limiting the pulse length from said boxcar circuits and supplying intensity power to said display means, said squelch circuit means being connected to said ''''and'''' circuit to send a squelch signal to said blocking oscillator means to block signals to said display means by cutting off said intensity power.
Claim 8
Dependent Claim
27 words
Apparatus of claim 4 having an audio signal producing means connected to said blocking oscillator means to convert the blocking oscillator means output pulses to sound energy.
Claim 9
Dependent Claim
128 words
Apparatus comprising first locating means for locating a signal direction along one axis, second locating means for locating said signal direction along a second axis, display means for receiving said signals from said locating means and displaying the source corresponding to said signal, a signal threshold means being connected between said locating means and said display means to eliminate signals to the display means when the sum of the signals from said locating means is below a predetermined minimum, thereby minimizing noise signals, the received signal being pulsed, leading edge gate generator means being between said locating means and said display means for sending only the leading edge of the pulse to the display means, thereby minimizing the undesirable effects of reflections of the signal source of radiation.
Claim 10
Dependent Claim
128 words
Apparatus comprising first locating means for locating a signal direction along one axis, second locating means for locating said signal direction along a second axis, display means for receiving said signals from said locating means and displaying the source corresponding to said signal, a signal threshold means being connected between said locating means and said display means to eliminate signals to the display means when the sum of the signals from said locating means is below a predetermined minimum, thereby minimizing noise signals, the received signal being pulsed, leading edge gate generator means being between said locating means and said display means for sending only the leading edge of the pulse to the display means, thereby minimizing the undesirable effects of reflections of the signal source of radiation.
Claim 11
Dependent Claim
131 words
Apparatus comprising first locating means for locating a signal direction along one axis, second locating means for locating said signal direction along a second axiS, display means for receiving said signals from said locating means and displaying the source corresponding to said signal, roll cutout means being between said locating means and said display means to eliminate signals to the display means when the signal from one locating means exceeds the signal from the other locating means by more than a predetermined maximum, the received signal being pulsed, leading edge gate generator means being between said locating means and said display means for sending only the leading edge of the pulse to the display means, thereby minimizing the undesirable effects of reflections of the main source of radiation from surrounding objects.
Claim 12
Dependent Claim
131 words
Apparatus comprising first locating means for locating a signal direction along one axis, second locating means for locating said signal direction along a second axiS, display means for receiving said signals from said locating means and displaying the source corresponding to said signal, roll cutout means being between said locating means and said display means to eliminate signals to the display means when the signal from one locating means exceeds the signal from the other locating means by more than a predetermined maximum, the received signal being pulsed, leading edge gate generator means being between said locating means and said display means for sending only the leading edge of the pulse to the display means, thereby minimizing the undesirable effects of reflections of the main source of radiation from surrounding objects.
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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) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |