onsdag 17 juli 2013

Bloggpost 20130718 UltrasonicSpeech

UltrasonicSpeech

Okay I have found the more advanced parts of the Audio Spotlight variations in modeling.
1 The transported through materials.
2 It is not possible to record.
There was some work and read through it, so I do not put out the whole but only a part, but now I am well-read.
Answer: an excerpt from a patent document I found that introduction.

Okej jag har funnit det mer avancerade delarna på Audio Spotlight varianter i modelleringen.
1 Den transporteras genom material.
2 Den går inte att spela in.
Det var en del arbete och läsa igenom det, så jag lägger inte ut hela utan bara en del, men nu är jag påläst.
Svar: ett utdrag ur ett patentdocument jag hittat som inledning.

A wireless communication system undetectable by radio
frequency methods for converting audio signals, including
human voice, to electronic signals in the ultrasonic 
frequency range, transmitting the ultrasonic signal by way of
acoustical pressure waves across a carrier medium, includ
ing gases, liquids, or solids, and reconverting the ultrasonic
acoustical pressure waves back to the original audio signal.
The ultrasonic speech translator and communication system
(20) includes an ultrasonic transmitting device (100) and an
ultrasonic receiving device (200). The ultrasonic transmit
ting device (100) accepts as input (115) an audio signal such
as human voice input from a microphone (114) or tape deck.
The ultrasonic transmitting device (100) frequency modu
lates an ultrasonic carrier signal with the audio signal
producing a frequency modulated ultrasonic carrier signal,
which is transmitted via acoustical pressure waves across a
carrier medium such as gases, liquids or solids. The ultra~
sonic receiving device (200) converts the frequency modu—
lated ultrasonic acoustical pressure waves to a frequency
modulated electronic signal, demodulates the audio signal
from the ultrasonic carrier signal, and conditions the
demodulated audio signal to reproduce the original audio
signal at its output (250).

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