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US 8,009,844 B2Granted
Two way device free communications system
AssigneeHoneywell International Inc.
InventorsRand P. Whillock, Edward L. Cochran
Life of this patent
Estimating the term…
Abstract
A two way communication system that does not require the use of a device by one of the communicators. The system employs an audio spotlight to project a signal to a specific location, where one person is, and a laser audio receiver to receive the response. Both the audio spotlight and the laser audio receiver are directed by a user seeking to communicate with the person at long range.
Claims15
A device for communicating to and from a remote location comprising:
- a laser pointer of visible frequency to assist in aiming a a beam transducer that transmits an ultrasonic parametric array of pressure waves to said remote location, in response to sonic pressure waves made by a user of the device, including a microphone to assist in creating said ultrasonic pressure waves from said user made pressure waves,
- a laser receiver to receive a modulated laser signal from said remote location including a transducer to make said received modulated laser signal audible;
- an aiming module to direct the laser receiver to said remote location, said aiming module including a subject tracker module to track a person at the remote location and a pan tilt module to aim the laser pointer at the person in response to an output of said subject tracker;
- and
- a power source to provide power to said device.
2 more elements
A device for communicating to a person at a remote location, comprising:
- parametric array generator means for transmitting a first signal to said remote location, including microphone means to create said signal from user input;
- laser audio receiver means for receiving a second signal from said remote location, including speaker means for transducing said second signal;
- a visible light aiming—means for directing the laser audio receiver to a surface providing a reflection at said remote location wherein said aiming means includes a tracker means for tracking a person and a pan tilt means for aiming said laser receiver in response to an output of said subject tracker means;
- and
- power means for providing power to said device.
2 more elements
A method for communicating to and from a remote location, comprising:
- transmitting an ultrasonic beam containing audio to said remote location with a parametric array generator device including a microphone to create said ultrasonic beam:
- receiving sound from said remote location with a laser audio receiver including a speaker to transduce a laser signal to a sound:
- aiming said laser audio receiver at said remote location, said aiming using a subject tracker to track a person;
- and
- a pan tilt unit to aim the ultrasonic beam in response to an output of said subject tracker.
2 more elements
Dependencies are inferred from the claim text.