conception of invisible keyboard.

1. SHADAB. KARNACHI

2.  The new optimal virtual display keyboard often
abbreviated as OVDK, using infrared light is a
latest replacing design to traditional keyboard
that had some kind of expiry date or some
deadline date.
 This keyboard consumes very less current.
According to the usage, it consumes 2 percent of
battery using leds and infrared transistor diode.
 But if Nanotechnic leds and infrared leds are
brought, then It can consume even low as 0.5 to
0.4 % of the battery.

3.  This type of technology, is based on
projecting/receiving, in which mini RGB
projectors, project light at a distance of about
15 cms.
 Basic QWERTY keyboard are about 3 level of
keys, in common applications like android
devices. So according to calculations, the key
board can be projected around 5 centimeters,
but it can be also ranged to zoom or expand
or contract ranging at about maximum of 15
cms and at minimum at 3- 2 cms.
 Whatever range of projection is even, infrared
is set half or quarter cm ahead corresponding
to that key.

4.  OVDK can be set of any color as it posses RGB
projection system.
 OVDK is virtual and it is very comfortable to use
as it can it can be project on any surface like a
simple sponge to rough floor.
 OVDK can be expanded by its size and
brightness and also it can be set in horizontal
angle.
 OVDK can save the touch or some kind of screen
to people who are really concerned to damage of
screen by over using of touch screen systems.
 OVDK is the best multi platform system and has
adopted sustainable source of energy.
FEATURES

5.  The main interfacing system is based on BIOS in which a
special kind of cache is fed.
 The cache consist of power and color information to each
key and in that cache angle of receiving infrared light
possibilities are fed to corresponding key.
 The cache can be of very low memory, it can be even fed
the color varieties for the RGB projection.
 As usual processor controls everything makes decision
and the BIOS makes up and enforces these commands just
like the legislature and executive power of the
government.
 The BIOS connects the projection of light and receiving of
light and the output of the function which is usually lcd
display or some other.
 The cache is fed in storage, when required can be brought
into the RAM.

6. PROJECTOR
RGB BIOS
OPTIMAL
RECEIVER
CPU CACHE
DISPLAY

7.  Here according to ODVK , the transmitter is the RGB
and infrared projector but the receiver is the Optimal
Receiver (OR).
 The transmitter and the receiver are fixed closer.
 The transmitter is at the back of the OT to the outer
side of the device.
 The transmitter consist of RGB projector and just in
it, it has one infrared light projector to each unit key
projection sets.
 Every thing is controlled by Optimal sensing
processor (OSP) or some external processor and BIOS
of OSP.
 OSP connects to systems Processor via main BIOS.

8.  In receiving, system and its materialistic is bit of
complicated and relates nanoTECH.
 The receiving is called optimal receiver(OR).
 The OR in physical, is transparent and and full wide to
the device side of projection.
 It is from external look black hiding other things from
out side.
 The OR senses the infrared light.
 It has one way valve sensing technology, which can read
the infrared rays in one direction, which is usually the
outer part where the reflected light is coming not the
interior of the device where there is infrared light
projection(incident light is being emitted).
 The OR transparent has light sensing diodes networked
together.
 The OR can recognize the angle distance, angle and
timing of the reflected and analyses to OSP.
 The OSP then calibrates and ranges that have been
programmed to corresponding key.

9. BIOS CPU
BIOS
INTERFACER
CHIP
IFRGB
CONTROL
CHIP
TRANSPERENT
INFRARED
OPTIMAL RECEIVER
RGB
PROJECTOR
INFRARED
TRANSMITTER/PROJECTOR
THIS IS THE TYPICAL SYSTEM IN A PHONE. HERE IT IS THE IPHONE 5 WITH IOS, PLATFORM.

10. HOW ODVK WORKS ?
• Theory of reflection-
• The main concept of this ODVK basis the
theory of reflection.
• According the theory of reflection, the angle
of incident is equal to the angle of incident to
the normal.
• Using this theory, the OVDK receiving system
has been contructed.

11. Infrared light
reflection system
ANY OBJECT NOT POSSESING BLACK
COLOUR.
INCIDENT
REFLECTED

12. • Theory states that the angle of reflection is
also depended on the angle of the object
kept.
• So usually a typer keeps his fingers in 90
degree or slightly 120 degree to the interior
way of the keyboard.
• The standard and universal angle for the
fingers approved by the university of
computer training is 92.5 degree.
• So in ODVK 90 – 120 degree fits completely
well.

13. Here is the setup of light projection of both infrared and RBG in above
mentioned device (IPHONE 5)
INFRARED
LIGHT
PROJECTED
RGB

14. • Many of the people, about 75% of people are to
be said to type of 110 degree only some pure
typers type about 90 degree.
• If a person types about 90 degree then the
reflected infrared goes to down part of the
transparent OR.
• And if 110 to 120 degree its vice versa.
• Other possibilities are of typing the inner levels of
the levels, if a person types a letter at the first
level the other infrared light of other consequent
level also get reflected but they don’t reflect to
the OR but some where else, where it is called
black point.

15. 120 degree
110 degree
90 degree
Situation of typing interior levels of
keyboard and the affects of the
outer projection of the infrared.
Black point
Outer level I/F light
interior level I/F light
ANGLES OF REFLECTIONS AND ITS AFFECTS

16. BIOS CPU
INFRARED
LIGHT
PROJECTED
RGB
BIOS
INTERFACER
CHIP
IFRGB
CONTROL
CHIP
TRANSPERENT
INFRARED
OPTIMAL RECEIVER
RGB
PROJECTOR
INFRARED
TRANSMITTER/PROJECTOR
THIS IS THE TYPICAL SYSTEM IN A PHONE. HERE IT IS THE IPHONE 5 WITH IOS, PLATFORM.

17. BUTTON IS
PRESSED
INFRARED
LIGHT IS
REFLECTED
BIOS
CALIBRATES THE
DISTANCE AND
INTENSITY OF
LIGHT
IFRGB ANALYSIS THE
GIVEN DATA TO
FIXED LETTERS OF
INFORMATION AND
SENDS TO BIOS TO
INTERFACE WITH
PROCESSOR VIA
SYSTEM BIOS
BIOS RECEIVES
THE DATA AND
PUSHES TO CPU
CPU ANALYSIS THE GIVEN DATA
AND SENDS INFORMATION TO
BIOS AS OUTPUT
BIOS THE DISPLAYS OR
OUTUTS THE INFORMATION
AND COMPLETES THE WORK
COMPLETE PROCESS OF THE ODVK