Creator Wireless IR Interpretation System Bedienungsanleitung PDF herunterladen (Seite 9)

CREATOR CORPORATION (CHINA) 2010-04 WWW.CREATOR1997.COM

Digital IR Language Distribution System User Manual

◆ Using IR to transmit

IR is part of the electromagnetic radiation

spectrum, which includes visible light, radio wave

and other radiation wave. The wave length of IR

is longer than the visible light, thus, IR cannot

penetrate the walls and ceiling. In this way, the

confidentiality of the meeting can be ensured,

tapping and interference can be avoided.

CREATOR’s IR language distribution system

uses the IR modulated by DQPSK to transmit the

signal. At the same time, this system also needs

radio frequency permission.

◆ Advanced digital technology

Full-digital DQPSK modulation technology

has been used to gain high frequency usage and

strong anti-interference ability.

The system applies full-digital audio

processing technology to ensure the high audio

quality, eliminate overhearing between channels

and noise etc.

◆ Free from the interference of fluorescent

light

The traditional IR language distribution

system is easily interfered by the fluorescent light.

CREATOR has applied unique technology and

has solved this problem thoroughly. It works on

2-6MHZ frequency, and avoided the interference

from various kinds of lighting sources.

◆ Flexible channel selection

CREATOR has left huge flexibility to the

users while designing the channels, and has

provided 16 general quality audio channels. (15

different translation channel + 1 original voice).

The general quality channels take smaller

bandwidth and can be used to transmit audio

signals.

◆ Flexible and convenient using methods

Using the IR system gives the delegates the

freedom of going around the whole meeting

room., because the signal transmit in the air, and

the system has no physical connection, thus the

activities can only be limited by the walls of the

meeting room. The IR receiver is light and

delicate, which can be put in the pocket of the

user’s T-Shirt or coat.

◆ Simple Installation and maintenance

The system is easy to install (the time it

takes depends on the allocation and correction of

the radiating panels). The only job to be done is

connect the equipments together, and

maintenance is just charging.

Once the installation is finished, the system

can be expanded any time. If the meeting scale

enlarges, what have to be done is just add more

IR receivers in to the system, and the basic

structure doesn’t have to be changed.

1.4 Factors that affect the IR

radiation

1.4.1 the directivity of receiving and emitting

CREATOR digital IR distribution system has

wide receiving angle, which can allow the receiver

to get perfect sound quality no matter how they

are placed. Please check Fig.1-1.

CREATOR radiating panel’s cover area is a

ellipse, which means as the distance gets larger,

the dimension of the radiation area gets larger till

a certain limit is reached. Please check the

Fig.1-2 “radiating panel coordinate illustration.

Fig1-1 IR receiver ‘s best receiving range

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