System, method and apparatus for communicating with vehicle occupants
First Claim
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1. A vehicle communication apparatus comprising:
- a radio frequency transmitter, the radio frequency transmitter modulates a first audio signal onto a radio frequency signal;
a light source, the light source emits light in a direction towards a window of a vehicle;
a detector positioned to receive at least part of the light that is reflected from the window of the vehicle,the detector converting the at least part of the light that is reflected from the window of the vehicle into an electrical signal;
an audio detector operatively coupled to the detector receives the electrical signal, 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.
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Abstract
An application for a two-way communication system for communicating with a person who is within a vehicle includes a short-range radio transmission to transmit audio to a radio within the vehicle. Communication from the person is done by reflecting a light beam on a window of the vehicle and receiving the light beam. The light beam is modulated by vibration of the window caused by the person'"'"'s voice. The received light beam is then processed to reproduce the sound of the person'"'"'s voice.
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Citations
14 Claims
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1. A vehicle communication apparatus comprising:
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a radio frequency transmitter, the radio frequency transmitter modulates a first audio signal onto a radio frequency signal; a light source, the light source emits light in a direction towards a window of a vehicle; a detector positioned to receive at least part of the light that is reflected from the window of the vehicle, the detector converting the at least part of the light that is reflected from the window of the vehicle into an electrical signal; an audio detector operatively coupled to the detector receives the electrical signal, 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification