System, method and apparatus for communication with occupants of a vehicle
First Claim
1. A vehicle communication apparatus comprising:
- a light source located outside of a vehicle and directed onto the vehicle, the light source emits light in a direction towards the vehicle;
a detector positioned to receive at least part of the light that is reflected from the vehicle, the detector converts the at least part of the light into an electrical signal;
an audio detector operatively coupled to the detector, the audio detector receives the electrical signal and the audio detector extracts an audio signal from the electrical signal; and
an audio output device operatively coupled to the audio detector, the audio output device receives the audio signal from the audio detector and reproduces the audio signal to be audible outside of the vehicle.
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Abstract
A vehicle communication system for communicating with a person who is within a vehicle includes a device for hearing audible noises that emanate within the vehicle at locations external to the vehicle without making physical contact with the vehicle. Communication from the person in the vehicle to a person external to the vehicle is performed by aiming a light beam from the vehicle and receiving reflections of the light beam. The light beam is modulated by vibration of the vehicle caused the audible noises from within the vehicle. The received light beam is then processed to reproduce the audible noises so that the audible noises can be heard from a location outside of the vehicle, even when the vehicle is sealed (windows closed, etc.).
22 Citations
20 Claims
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1. A vehicle communication apparatus comprising:
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a light source located outside of a vehicle and directed onto the vehicle, the light source emits light in a direction towards the vehicle; a detector positioned to receive at least part of the light that is reflected from the vehicle, the detector converts the at least part of the light into an electrical signal; an audio detector operatively coupled to the detector, the audio detector receives the electrical signal and the audio detector extracts an audio signal from the electrical signal; and an audio output device operatively coupled to the audio detector, the audio output device receives the audio signal from the audio detector and reproduces the audio signal to be audible outside of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A vehicle communication apparatus comprising:
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a radio frequency transmitter, the radio frequency transmitter receives a first audio signal and modulates the first audio signal onto a radio frequency signal; a radio associated with a vehicle, the radio receives the radio frequency signal and demodulates the first audio signal from the radio frequency signal, amplifies the first audio signal, and emits the first audio signal from a transducer for listening within the vehicle; a light source, the light source is directed towards the vehicle, the light source emits light onto the vehicle; a detector, the detector receives at least part of the light reflected from the vehicle, the detector converts the at least part of the light that is reflected from the vehicle into an electrical signal; an audio detector operatively coupled to the detector, the audio detector extracts a second audio signal from the electrical signal; and an audio output device, the audio output device receives the second audio signal from the audio detector and reproduces the second audio signal to be audible external to the vehicle. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification