Close-Talk Wireless Infrared Conference System

Media Vision USA provides NEW fully-secure Infrared wireless Close-Talk microphone discussion and voting system. Close-Talk is the right solution for multipurpose conference rooms with portable conference system. Ideal solution to integrate with teleconferencing and videoconferencing! Thanks to Tele-in/out in the system!

How does it work?

Closetalk

The Close Talk Conference System consists of a Central Unit, an optional number of Delegate Units and one or more Transceiver Units.

The central unit is the heart of the system. It manages speaker queues, sound levels and much more.

The delegate units 'talk' to the central unit via the transceiver, using infra-red light. No cords! Not even power cords since the delegate units are battery powered. Now imagine your new conference table, no more tripping over wires, no more annoying 'gizmos' taking up space. The delegate units sleek design will fit into almost all environments. The weight and size means setting up for a conference is a matter of minutes.

The transceiver acts as an "antenna" and is connected to the central unit. Several transceiver units can be used to cover almost any room type.

There is more!

By adding a PC, Close Talk Conference System is extended ever further. Close Talk Control is a Microsoft Windows™ 9x/ME/NT 4/2000/XP compatible software that adds expanded conference system capabilities and voting. In minutes, a vote can be made and the result be printed and distributed. Voting results can also be exported for archival or publishing purposes.

The expanded conference system includes full speaker list control. Delete and re-order at will. It also adds delegate reply capabilities.

Close Talk Control is designed with modern technology in mind. By adding a second display output to the PC (supported by Windows 98, Windows 2000 and Windows XP), speaker list and voting can be displayed in the largest of auditoriums by using a video projector or be distributed on an organizations internal TV network.

Central Unit

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The Central Unit controls the conference system. The transmitter/receiver units are connected to the central unit, where all settings and possible adjustments are carried out. Any type of external sound source can easily be connected to the system: wireless microphones, CD players, tape recorders, TV, etc. The system is also ideal for teleconferencing.

The Central Unit is the heart of the conference system and has the following features:

  • Powerful speaker queue
    • Queue can handle up to 256 speakers
    • Automatic queue handling. As soon as an audio channel is available, the next speaker will be allowed to talk on a first-in first-out basis
    • Intelligent. Exiting the queue by mistake and then re-entering will cause the speaker to re-assume his old queue position
  • Audio control functions
    • Audio receiver mixer. The level of all three channels may be set individually and globally.
    • 'Line In&Out' and 'Tele In&Out' level control
    • Global audio equalizer (low and high frequency band)
    • Room damping function. Depending on room characteristics, a preset amount of signal level reduction can be selected to avoid feedback problems when multiple delegate units are active
  • Multiple audio inputs and outputs
    • 'Line In' and 'Line Out' can be used to connect an external sound source such as a tape recorder
    • 'Tele In' and 'Tele Out' can be used together with a Telephone Hybrid for telephone conferences
  • Control the delegate unit sound levels
    • The volume knob range on the delegate unit can be controlled by the central unit to prevent problems with feedback
    • Both speaker and headphone levels are controllable
  • Chairman function
    • Independent of speaker channel usage, a chairman always has access to a channel using one of three methods
    • 'Steal Channel' - The chairman steals the channel from the speaker that has spoken the longest time. When the chairman releases the channel, it becomes available to the next speaker in the queue
    • 'Borrow Channel' - The chairman borrows the channel from the speaker that has spoken the longest time. When the chairman releases the channel, the channel is automatically returned to the original speaker
    • 'Own Channel' - The chairman has his own channel, leaving a maximum of two channels available to other speakers
  • Priority Unit handling
    • One delegate unit can be treated as a priority unit. This is especially useful with a platform where a speaker channel is always open
    • The priority unit uses the 'Steal Channel' method as described under 'Chairman function'
  • Directly supports up to 10 transceiver units
    • Up to 10 transceiver units may be connected directly to the central unit. By using a Split Box, even more transceiver units can be used to handle the most difficult rooms
  • Six infra-red communication channels
    • Three audio channel receivers. Can be configured to allow one, two or three speakers to talk simultaneously
    • One data channel receiver. Receives data messages from the delegate units
    • One audio transmitter. Acts as an audio broadcast channel for all delegate units
    • One data channel transmitter. Sends delegate unit control messages such as speaker volume levels
  • Universal (World) Power Supply
  • Lockable menu to prevent unauthorized use
  • Selectable display backlight time
  • Unit software can be updated from a PC

Front panel

The front panel contains:
  • A 16 characters x 2 lines backlit LCD display.
  • Three status indicators, POWER on, EDIT mode and system ERROR
  • Two buttons and a rotary knob used for changing unit settings

Rear panel

The rear panel contains:
  • A serial port. Used when connecting the central unit to a computer
  • A power connector. Provides power to the central unit and the connected transceivers
  • Line In, Line Out, Tele In and Tele Out. Audio connectors for external sound sources

Delegate Unit

Any number of Delegate Units can be used for conferencing and voting. The delegate units are placed on the table in front of one or two conference participants. The unit contain a transmitter, receiver, microphone, loudspeaker and a re-chargeable lead accumulator. A fully charged unit will last approximately 25 hours. The delegate units have three communication channels which can be used in various combinations according to wishes.

Delegate Unit

The delegate unit is a stand-alone, cordless unit used for speaking and voting. It has the following features:

  • Battery powered
    • No power cords needed
    • A fully charged unit will last for about 25 hours (playback only).
  • Small and sleek design
  • Easy operation
    • Only two buttons makes operation very easy to understand Closetalk image
  • Sound level adjustment knob for speaker and headphones
  • Excellent sound quality
  • Built-in microphone signal detector
    • Prevents speaker channel lock-outs when a speaker forgets to release his channel
  • Software can be updated over data channel
    • New delegate unit software is downloaded into the central unit and can then be sent to all delegate units at once
    • Automatic software version handling. A delegate unit with an older software version will automatically detect the presence of a newer version

The Delegate Unit can be ordered with several microphone alternatives. The top-most picture shows the regular microphone and the picture above shows a microphone with a built-in red lamp that turns on when the microphone is active. A model with a detachable microphone is also available, suitable for mobile systems.

Delegate Unit Charger

Charger

Features:

  • Charges 5 delegate units
  • Automatic charging
  • Charging error indicator

Transceiver Unit

Transciever unit

The distribution of infra-red light to and from the delegate units is conducted via transmitter/receiver units. Using infra-red light makes bugging virtually impossible and will not interfere with other wireless systems in the same building. The transceiver is usually placed faced down on the ceiling.

The transceiver unit contains an infra-red transmitter and receiver and is used for communication. It has the following features:

  • As many transceivers as needed may be used to cover a room
  • Small size and discrete design makes it non-intrusive
  • May be mounted anywhere, on a table, on a wall or on a ceiling

Room characteristics have great impact on where to place the transceiver units. In a low height, highly IR-reflective ceiling situation it may be advantageous to place the transceiver face-up, using room reflections as a light distributor. In a high height room situation, transceivers are usually placed on the ceiling faced down.

Split Box

In very large rooms, more than 10 transceivers may be needed. The Split Box makes it possible to arrange transceivers in self-powered clusters. This also reduces cable lengths since only one cable per cluster is needed to connect to the central unit.

PC Support

Close Talk Control

Close Talk Control is a Microsoft Windows compatible software that will provide the system with expanded conference functionality and voting.

Contact your local sales rep to schedule a demo!
http://www.mediavision-usa.com/sales.html