LVI MagniLink TAB User manual

User Manual
MagniLink TAB
LVI Low Vision International
Verkstadsgatan 5 Tel: [phone] [email protected]
SE-352 46 Växjö Faks: [phone] www.lvi.se

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Table of Contents
1 About LVI......................................................................................... 5
2 Introduction to MagniLink TAB ..................................................... 6
3 Safety information .......................................................................... 7
4 Unpacking ....................................................................................... 8
4.1 Packaging.................................................................................... 8
5 Hardware......................................................................................... 9
5.1 Stand............................................................................................ 9
5.2 Tablet computer ....................................................................... 10
5.3 Distance camera ....................................................................... 11
5.4 Installation ................................................................................. 12
6 Software......................................................................................... 13
6.1 Functions via menus ................................................................. 14
6.2 Functions via gestures.............................................................. 17
6.3 Functions via the keyboard...................................................... 18
6.4 Information and settings window ............................................ 20
6.5 Quality of OCR processing ...................................................... 25
7 Ergonomics ................................................................................... 26
8 Technical information................................................................... 27
9 Declaration of Conformity ........................................................... 29

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1About LVI
LVI Low Vision International AB was founded in 1978 and is one of the
world's leading manufacturers of equipment for persons with visual
impairments. Development of new products takes place in close
cooperation with users and professional staff within the low vision
rehabilitation industry. LVI is quality-certified in accordance with ISO 9001
and environmentally-certified in accordance with ISO 14001.
The information in this manual has been carefully checked and is
believed to be accurate. However, LVI assumes no responsibility for any
inaccuracies that may be contained in this manual. In no event will LVI be
liable for direct, indirect, special, exemplary, incidental, or consequential
damages resulting from any defect or omission in this manual. In the
interest of continued product development, LVI reserves the right to
make improvements in this manual and the products it describes at any
time, without notice or obligation.

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2Introduction to MagniLink TAB
Thank you for choosing this system. Our aim is for you to be satisfied with
your choice of supplier and vision aid.
MagniLink TAB is a system with a tablet computer and stand, developed
to make everyday life easier for visually impaired people. The system
offers autofocus, several artificial colours and the ability to set the
magnification. It is possible to OCR-process a text and have it read aloud
by a speech synthesiser.
MagniLink TAB meets all the requirements for CE marking of medical
devices in accordance with Directive 93/94/EEC. Our products comply
with MDD 93/94/EEC with additions from Directive 2007/47/EC.

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3Safety information
Only use the power adaptor supplied with the product. Using an
incorrect type of power adapter may cause damage to the system.
Never operate the product if it has been exposed to water or other
liquids. Damaged or wet product can cause electric shocks or fire.
Place the power cord in such a way that you can neither trip over it
or that crush damages can occur.
If the product is moved from the cold into a warm room,
condensation (moisture) can form inside the unit or on the camera
lens. To prevent problems with condensation, the apparatus should
be installed in the room at least 30 minutes prior to usage.
If the system requires cleaning, detach all cables. Use a slightly
damp (not wet) cloth to clean the system. Use only water or a
cleaning agent that is intended for monitors and computers.
When the system is to be moved, remove the distance camera
(where applicable), collapse the system and lift it via the handle.
Be careful not to catch your fingers when collapsing the system.
Do not rely 100 per cent on the results of an OCR conversion; the
OCR engine can misinterpret the text. This is particularly important
to bear in mind when processing sensitive information such as a
medical prescription.
If in doubt, contact your supplier.
Warning
The product is supplied packed in a plastic bag. To avoid risk of
suffocation, keep the bag out of the reach of children and infants.

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4Unpacking
The system is supplied in a box with the following contents:
Stand
Tablet computer (Microsoft Surface)
Power adaptor
Distance camera
Polishing cloth
Case
User Guide
Check first that the box has no external damage. In the event of damage,
please contact the transport company and make a notification of
damage.
Open the box, take out the MagniLink TAB and remove the packaging
parts.
4.1 Packaging
The packaging consists of the following packaging material (LVI
recommends that the packaging be kept in case you have to return the
system or you need to move it):
Packing material (XPE)
Box (corrugated cardboard)
Polyethylene (LDPE4)
For sorting and collection of packaging material, please call the
packaging collection customer service department for information on the
rules that apply in your municipality.
Note that the product and its accessories must be recycled as electronic
waste. A worn-out battery is recycled as electronic waste.

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5Hardware
5.1 Stand
The stand consists of an arm with a holder for a tablet computer. The arm
of the stand also functions as a handle when collapsing and moving the
system. The stand also contains an attachment for a distance camera.
If the tablet is to be put back in the stand, it is important to insert it with
the camera down. Otherwise, it can be difficult to remove it.

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5.2 Tablet computer
The tablet computer is of the type Microsoft Surface Pro.
1. Power adaptor port.
2. USB ports.
3. Mini-DisplayPort, for connecting an external monitor.
4. Camera.
5. Volume control.
6. On/Off button. Press to start. To enter standby mode, press and
release the button quickly. To shut down the unit, press and hold
the button.
7. Headphone socket.

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5.3 Distance camera
The distance camera is connected to the tablet computer using a USB
cable. The camera lens can be folded down if you wish to view an object
from a distance.

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5.4 Installation
1. Place the stand on the table in front of your seat.
2. Take hold of the arm of the stand and manipulate it into the
desired position.
3. Connect the power adaptor to the port on the left side of the
tablet.
4. Place the distance camera on the right side of the stand. Connect
the USB cable from the camera body to the USB port on the left
side of the tablet.

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6Software
The software comes preinstalled and starts automatically when you turn
on the unit. The software comprises three different views; a camera view,
an OCR view and a settings view. The software’s various functions can be
controlled via menus, gestures or keyboard. When a new version is
released, the software is updated automatically.
If you wish to shut off the software, press and hold five fingers on the
screen to exit fullscreen mode. Tap the x in the top right-hand corner
LVI accepts no responsibility for conflicts that may arise when users
installs third-party software on the device. If problems occur, there is a
restore point. To restore Windows to this point, tap Search. Type
Recovery in the search box, and then click Recovery. Press Open
System Restore and select the Restore Point LVI Factory Restore.
Restoring the system can take up to one hour.

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6.1 Functions via menus
The following menu is displayed when the application is in camera view.
Switch between camera view and OCR view.
Switch between distance camera and the front and rear cameras.
One press with two fingers switches direction.
Zoom in.
Zoom out.
Start OCR. When pressing the button with two fingers, the result of
the OCR processing appears on a new page.
Open a submenu with the following two buttons.
Record video. One press with two fingers, starts the recording
without dialogue.
Take a picture. One press with two fingers, takes a picture without
dialogue.
Open a submenu with the following five buttons.
Switch between natural colours and greyscale.

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Switch between artificial colours. Through pressing with two fingers,
the artificial colour palette cycles backwards.
Increase brightness or contrast.
Decrease brightness or contrast.
Mirror image.
Open the Settings view.
The following menu is displayed when the application is in OCR view.
Switch between camera view and OCR view.
Open a submenu where the following two alternatives are found.
Open document. From the dialogue box, select the file you wish to
open. It is possible to open saved ZIP files.
Save document. A file name (today’s date and time) is suggested
automatically. It is possible to save the text as an RTF (.rtf) or Zip file.
Start reading.

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Skip backwards in the text. Depending on which reading mode is
selected, you will either skip back to the previous character, word,
sentence or block. One press with two fingers skips back to the
previous page.
Skip forwards in the text. Depending on which reading mode is
selected, you will either skip forwards to the next character, word,
sentence or block. One press with two fingers switches to the next
page.
Open a submenu with the following settings.
Switch to next reading mode. The modes available are: character,
word, sentence and block.
Change display mode. The display modes available are "page view",
"row view", "word view", "image view", "image and word" and
"image and row".
Increase font size.
Decrease font size.
Open a submenu with the following four buttons.
Switch between natural colours and greyscale.
Switch between artificial colours. Through pressing with two fingers,
the artificial colour palette cycles backwards.
Increase brightness or contrast.
Decrease brightness or contrast.

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Open the Settings view.
6.2 Functions via gestures
Some functions can be controlled via gestures on the tablet. Pressing and
holding means keeping the fingers in place for more than half a second.
It is possible to choose which gestures you want to switch off in the
settings.
Press with two fingers Natural colours
Press with three fingers Autofocus on/off
Not possible with the front camera.
Long press with one finger Start OCR processing
Press and hold with two fingers Angle correction on/off
Press and hold with three fingers Mirror image
Press and hold with four fingers Open settings
Press and hold with five fingers Toggle fullscreen
Pinch Change magnification
Drag one finger Pan through the image
Drag two fingers horizontally Change contrast level
Drag three fingers horizontally Change manual focus (in camera view)
Only possible with the distance camera.
Adjust the speech speed (in OCR view)
Drag four fingers horizontally Change display mode
Drag two fingers vertically Change artificial colour
Drag three fingers vertically Adjust the volume
Double tap with one finger Hide menu

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6.3 Functions via the keyboard
Most functions can be handled using the keyboard. The short cut
commands can be changed in settings. Below are the standard settings
for the short cut commands.
F1 Natural colours
F2 Positive colours forwards
Shift + F2 Positive colours backwards
F3 Negative colours forwards
Shift + F3 Negative colours backwards
Up arrow Increase magnification
Down arrow Reduce magnification
Ctrl + J Autofocus on/off
Not possible with the front camera.
Shift + Up arrow Increase focusing distance
Only possible with the distance camera.
Shift + Down arrow Reduce focusing distance
Only possible with the distance camera.
Right arrow Increase brightness/contrast
Left arrow Reduce brightness/contrast
Ctrl + I Reflect camera image
Ctrl + K Angle correction on/off
Ctrl + F Toggle fullscreen
Ctrl + B Show battery status
F9 Settings
F7 Switch camera
F5 Save picture
Shift + F5 Save picture quickly
Ctrl + F5 Start video recording
Ctrl + Shift + F5 Start video recording quickly
APan left
Only possible if the image is magnified.
Not possible with the distance camera.

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DPan right
Only possible if the image is magnified.
Not possible with the distance camera.
WPan up
Only possible if the image is magnified.
Not possible with the distance camera.
SPan down
Only possible if the image is magnified.
Not possible with the distance camera.
F4 Start OCR
The text from OCR processing replaces
existing text.
Shift + F4 Start OCR enter
The text from OCR processing is entered
on a new page.
VSwitch between camera view and OCR
view
Alt + F5 Save documents
F6 Open document
Shift + Plus Increase font size
Shift + Minus Decrease font size
1Start reading
2Stop reading
BChange display mode
3Read previous
4Read next
5Switch reading mode
Page Down Next page
If several pages have been scanned, you
move to the next page.
Page Up Previous page
If several pages have been scanned, you
move to the previous page.
8Reduce volume
9Increase volume
6Reduce speaking speed

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7 Increase speaking speed
Ctrl + 0 Next voice
6.4 Information and settings window
The Information and settings window consists of a number of different
tabs that contain application information and alternative settings.
6.4.1 About the application
Information regarding the software version and system licence can be
found under this tab.
If you want to update the system licence, this can be done by pressing
the button “enter licence”.