Patent US5682136A successfully refreshed from Google Patents.
US5682136A
Expired / Lapsed
US
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Electromagnetic detection system for parking operation
Assignee: Individual
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Filing: 1993-02-08
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Granted: 1997-10-28
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Expires: 2013-02-08
Abstract
Abstract A system which provides an alarm indicative of a presence of an obstacle in a vicinity of a vehicle. The system operates by electromagnetic detection, and generates an oscillating radiofrequency signal. A transmitter transmits the generated oscillated radiofrequency signal to create, all around the transmitter, an electromagnetic radiofrequency near field. A receiver receives the electromagnetic radiofrequency near field. A detector is connected to the receiver and detects a perturbation resulting in a reduction of an oscillation amplitude of the electromagnetic radiofrequency near field, and an indicator indicates the detected perturbation of the received electromagnetic radiofrequency near field. Based on this operation, an obstacle in a vicinity of the vehicle can be detected.
Inventors
- 👤 Mauro Del Signore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:46
CPC Classifications
B; B60; B60Q; B60Q9/00; B60Q9/002; B60Q9/004; B60Q9/006; G; G01; G01S; G01S13/00; G01S13/88; G01S13/93; G01S13/931; G01S2013/9314; G01S2013/9327; G01S2013/93272; G01S2013/93275
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
114 words
An electromagnetic detection system for detecting obstacles during a vehicle parking operation, comprising: a generating means for generating an oscillating radiofrequency signal; a transmitting means connected to the generating means and receiving the radiofrequency signal and for transmitting the radiofrequency signal to create, all around said transmitting means, an electromagnetic radiofrequency near field; a receiving means for receiving the electromagnetic radiofrequency near field; a detecting means connected to the receiving means for detecting a perturbation resulting in a reduction of oscillation amplitude of said electromagnetic radiofrequency near field received by the receiving means; and an indicator means connected to the detecting means for indicating the detected perturbation of the received electromagnetic radiofrequency near field.
Claim 2
Dependent Claim
114 words
An electromagnetic detection system for detecting obstacles during a vehicle parking operation, comprising: a generating means for generating an oscillating radiofrequency signal; a transmitting means connected to the generating means and receiving the radiofrequency signal and for transmitting the radiofrequency signal to create, all around said transmitting means, an electromagnetic radiofrequency near field; a receiving means for receiving the electromagnetic radiofrequency near field; a detecting means connected to the receiving means for detecting a perturbation resulting in a reduction of oscillation amplitude of said electromagnetic radiofrequency near field received by the receiving means; and an indicator means connected to the detecting means for indicating the detected perturbation of the received electromagnetic radiofrequency near field.
Claim 3
Dependent Claim
29 words
The electromagnetic detection system as claimed in claim 1, wherein the transmitting and receiving means are formed by two wires of electrical conductive material, used as antennas, coupled together.
Claim 4
Dependent Claim
26 words
The electromagnetic detection system as claimed in claim 1, wherein the means for generating the radiofrequency signal includes an electronic oscillator coupled to the transmitting means.
Claim 5
Dependent Claim
39 words
The electromagnetic detection system as claimed in claim 3, wherein the electronic oscillator comprises one transistor, connected to a first coil, which generates a radiofrequency oscillation which is inductively transferred to a second coil connected to the transmitting means.
Claim 6
Dependent Claim
22 words
The electromagnetic detection system as claimed in claim 1, wherein the detecting means comprises a revealation unit coupled to the receiving means.
Claim 7
Dependent Claim
28 words
The electromagnetic detection system as claimed in claim 5, wherein the revealation unit comprises two revealation diodes which demodulate the electromagnetic radiofrequency signal received by the receiving means.
Claim 8
Dependent Claim
17 words
The electromagnetic detection system as claimed in claim 1, wherein the detecting means comprises an acoustic transducer.
Claim 9
Dependent Claim
23 words
The electromagnetic detection system as claimed in claim 5, wherein the detecting means comprises an electronic amplifier comprising first and second operational amplifiers.
Claim 10
Dependent Claim
46 words
The electromagnetic detection system as claimed in claim 8, further comprising a resistor and a capacitor connected between said revealation unit and said amplifier to give a self-adjustment to the detecting means to avoid instability or malfunctioning due to changes in external temperature and voltage supply.
Claim 11
Dependent Claim
39 words
The electromagnetic detection system as claimed in claim 1, wherein each of the generating means, transmitting means, receiving means, detecting means and indicator means are encapsulated in a module electrically connected to a reverse gear lamp for power supply.
Claim 12
Dependent Claim
28 words
The electromagnetic detection system as claimed in claim 5, wherein the revealation unit comprises two revealation diodes which demodulate the electromagnetic radiofrequency signal received by the receiving antenna.
Claim 13
Dependent Claim
105 words
An electromagnetic detection system for detecting obstacles during a vehicle parking operation comprising: a generator generating an oscillating radiofrequency signal; a transmitting antenna connected to the generator and receiving the radiofrequency signal and transmitting the radiofrequency signal to create, all around said transmitting antenna, an electromagnetic radiofrequency near field; a receiving antenna receiving the electromagnetic radiofrequency near field; a detector connected to the receiving antenna and detecting a perturbation resulting in a reduction of oscillation amplitude of said radiofrequency near field received by the receiving antenna; and an indicator connected to the detector and indicating the detected perturbation of the received electromagnetic radiofrequency near field.
Claim 14
Dependent Claim
105 words
An electromagnetic detection system for detecting obstacles during a vehicle parking operation comprising: a generator generating an oscillating radiofrequency signal; a transmitting antenna connected to the generator and receiving the radiofrequency signal and transmitting the radiofrequency signal to create, all around said transmitting antenna, an electromagnetic radiofrequency near field; a receiving antenna receiving the electromagnetic radiofrequency near field; a detector connected to the receiving antenna and detecting a perturbation resulting in a reduction of oscillation amplitude of said radiofrequency near field received by the receiving antenna; and an indicator connected to the detector and indicating the detected perturbation of the received electromagnetic radiofrequency near field.
Claim 15
Dependent Claim
26 words
The electromagnetic detection system as claimed in claim 12, wherein the transmitting and receiving antennas are formed by two wires of electrical conductive material coupled together.
Claim 16
Dependent Claim
21 words
The electromagnetic detection system as claimed in claim 12, wherein the generator includes an electronic oscillator coupled to the transmitting antenna.
Claim 17
Dependent Claim
39 words
The electromagnetic detection system as claimed in claim 14, wherein the electronic oscillator comprises one transistor, connected to a first coil, which generates a radiofrequency oscillation which is inductively transferred to a second coil connected to the transmitting antenna.
Claim 18
Dependent Claim
21 words
The electromagnetic detection system as claimed in claim 12, wherein the detector comprises a revealation unit coupled to the receiving antenna.
Claim 19
Dependent Claim
16 words
The electromagnetic detection system as claimed in claim 12, wherein the detector comprises an acoustic transducer.
Claim 20
Dependent Claim
22 words
The electromagnetic detection system as claimed in claim 16, wherein the detector comprises an electronic amplifier comprising first and second operational amplifiers.
Claim 21
Dependent Claim
45 words
The electromagnetic detection system as claimed in claim 18, further comprising a resistor and a capacitor connected between said revealation unit and said amplifier to give a self-adjustment to the detector to avoid instability or malfunctioning due to changes in external temperature and voltage supply.
Claim 22
Dependent Claim
36 words
The electromagnetic detection system as claimed in claim 12, wherein each of the generator, transmitting antenna, receiving antenna, detector and indicator are encapsulated in a module electrically connected to a reverse gear lamp for power supply.
Claim 23
Dependent Claim
109 words
An electromagnetic detection system for detecting obstacles during a vehicle parking operation, comprising: a generator generating an oscillating radiofrequency signal; a transmitting antenna connected to the generator and receiving the radiofrequency signal and transmitting the radiofrequency signal to create, all around said transmitting antenna, an electromagnetic radiofrequency near field; a receiving antenna receiving the electromagnetic radiofrequency near field; a detector connected to the receiving antenna and detecting a perturbation resulting in a reduction of oscillating amplitude of said electromagnetic radiofrequency near field received by the receiving antenna; and an indicator connected to the detector and indicating the detected variation in the amplitude of the received electromagnetic radiofrequency near field.
Claim 24
Dependent Claim
109 words
An electromagnetic detection system for detecting obstacles during a vehicle parking operation, comprising: a generator generating an oscillating radiofrequency signal; a transmitting antenna connected to the generator and receiving the radiofrequency signal and transmitting the radiofrequency signal to create, all around said transmitting antenna, an electromagnetic radiofrequency near field; a receiving antenna receiving the electromagnetic radiofrequency near field; a detector connected to the receiving antenna and detecting a perturbation resulting in a reduction of oscillating amplitude of said electromagnetic radiofrequency near field received by the receiving antenna; and an indicator connected to the detector and indicating the detected variation in the amplitude of the received electromagnetic radiofrequency near field.
Claim 25
Dependent Claim
26 words
The electromagnetic detection system as claimed in claim 21, wherein the transmitting and receiving antennas are formed by two wires of electrical conductive material coupled together.
Claim 26
Dependent Claim
21 words
The electromagnetic detection system as claimed in claim 21, wherein the generator includes an electronic oscillator coupled to the transmitting antenna.
Claim 27
Dependent Claim
39 words
The electromagnetic detection system as claimed in claim 23, wherein the electronic oscillator comprises one transistor, connected to a first coil, which generates a radiofrequency oscillation which is inductively transferred to a second coil connected to the transmitting antenna.
Claim 28
Dependent Claim
21 words
The electromagnetic detection system as claimed in claim 21, wherein the detector comprises a revealation unit coupled to the receiving antenna.
Claim 29
Dependent Claim
31 words
The electromagnetic detection system as claimed in claim 25, wherein the revealation unit comprises two revealation diodes which demodulate the amplitude of the electromagnetic radiofrequency signal received by the receiving antenna.
Claim 30
Dependent Claim
16 words
The electromagnetic detection system as claimed in claim 21, wherein the detector comprises an acoustic transducer.
Claim 31
Dependent Claim
22 words
The electromagnetic detection system as claimed in claim 25, wherein the detector comprises an electronic amplifier comprising first and second operational amplifiers.
Claim 32
Dependent Claim
45 words
The electromagnetic detection system as claimed in claim 28, further comprising a resistor and a capacitor connected between said revealation unit and said amplifier to give a self-adjustment to the detector to avoid instability or malfunctioning due to changes in external temperature and voltage supply.
Claim 33
Dependent Claim
36 words
The electromagnetic detection system as claimed in claim 21, wherein each of the generator, transmitting antenna, receiving antenna, detector and indicator are encapsulated in a module electrically connected to a reverse gear lamp for power supply.
References Cited (Backward Citations)
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