What is the origin of the
When serial digital video signals are
displayed using an oscilloscope or waveform monitor, the display
shows what is often referred to as an 'eye' pattern.
Transmission losses progressively reduce the harmonics in the signal
and increase noise. These losses close the "eye" in a
vertical direction. Increasing jitter (fluctuating timing errors)
close the eye in a horizontal direction . The wider the eye opens,
the better the chance of equipment sampling the SDI signal
correctly. The 'eye height' is commonly used to make a
subjective assessment of the signal integrity, hence the origin of
the Eyeheight name.
How long has Eyeheight been active?
Eyeheight was established in 1992. Founded
by Martin Moore and Steve Crocker, the company has grown steadily
and has built a solid reputation for high quality reliable products.
We celebrated our 20th anniversary in September 2012.
Where can I purchase
equipment outside of the UK?
Eyeheight has resellers in many countries
What is geNETics?
geNETics was the technology name given to
the most recent generation of products to be designed and
manufactured by Eyeheight. The choice of name alludes to the
technologies network operation and modular construction. geNETics is
now the family name for Eyeheight infrastructure products.
What is presTX?
presTX is a compact modular presentation
mixing and channel branding system based on the Eyeheight geNETics
product range. Selecting only the control panels and function cards
you actually need for your system ensures value for money. Because
it presTX is based on geNETics, it is always expandable to meet
Television stations are under
ever-increasing pressure to make their own identity or channel
branding system stand out from the rest. The Eyeheight presTX is
designed to achieve a powerful and consistent look using total
digital technology and a novel use of networking systems. The
channels overall image has to be paramount and simple so that
viewers associate this channel branding system with a strong
message. The presTX provides this complete channel experience.
presTX has been designed using Eyeheight's
innovative Common Hardware Platform, and is built up using the
Eyeheight geNETics system. This provides each on-air channel with a
cost-effective recognised logo or channel branding system, which
uniquely distinguishes this channel from the rest. This system's
innovative use of building block technology means that presTX can be
for example, a very simple SDI A/B mixer to a full-blown mix, wipe,
linear key with DVE, providing a flexible channel branding system
together with an associated AES/Embedded Audio Mixer. This is
achieved by adding different modules to suit the users requirements,
and makes the whole system very flexible, being tailored to very
specific individual clients' requirements. The system is robust and
cost-effective and is equally at home in a broadcast, multi-channel,
or post-production application.
presTX can provide A/B SDI video switching
coupled with an associated A/B group AES/EBU/Embedded Audio Mixer.
These can be locked together or manually cut away for separate
operation, all under automation control. The program A/B feeds are
fed from an external router, and can perform both
horizontal/vertical mixes, wipes etc. as well as cuts and fades with
totally adjustable fade rate and wipe softeners. Previewing of the
next switcher position is provided for rapid monitoring. Associated
with this A/B switcher is a powerful AES/EBU Digital Audio and
Embedded mixing system. This allows any cuts and mixes to be totally
controlled by the automation system, or alternatively it can be
operated manually. This allows for audio dips, etc and there is also
an external voice-over facility.
After the SDI A/B switcher is a fully
featured downstream keyer. This is ideal for operation with graphics
equipment including character generators and stillstores. The DSK
can provide additive and full linear keying facilities using both
internal/external SDI key and fill signals. It also has operational
control of gain, clip, and transparency levels, which are all
presTX is compatible with all the current
automation standards and is designed to be proactive. It also has
programmable GPI interfaces, and its simple building block structure
enables Eyeheight to tailor our software to suit every
client. The control panel also uses a building block
concept and can be used with the different features of presTX, all
under automation control. This means that only one panel need be
required for multiple installations. The panel is in fact, five
different control panels, and these can be mixed and matched for
total flexibility to the clients individual requirements.
Does Eyeheight make custom products?
One of the major strengths of the company is
the ability to design and build special niche products and bring
them to market quickly. Our unique common hardware platform using
reconfigurable firmware allows us unprecedented flexibility in the
design and production processes which translate into performance,
value, and quick turnaround for the customer.
Who can I contact if I have a problem
with an Eyeheight product?
Eyeheight has a technical support department
specifically to deal with technical enquiries and problem-solving.
Telephone: +44 1923 256 062
If I have an idea or a specific need
for a custom product, could Eyeheight make it?
Yes and probably quicker than you might
expect. Eyeheight is skilled in the design and building of the
digital products for many applications within the digital TV,
metadata and audio fields. Our design philosophy using
reconfigurable firmware in our geNETics common hardware platform
allows us to accommodate new ideas quickly and in a cost-effective
manner. Contact us to discuss your requirements.
Where will I find
You can download user guides for most of the
popular Eyeheight products from the Manuals
link on the Support page of
our web site.
Some Eyeheight function cards are
supplied as dual devices. How are dual device cards controlled?
geNETics products are available as dual
function cards. Single function devices with a –1 suffix can
generally be doubled up on one processor and I/O card, although it
is also possible to combine different devices which both have a –1
suffix on one card.
These dual cards are controlled using an
FP-9 or FP-10 panel in the same way as other devices. The difference
is that both are controlled as if they were one device. Settings
applied by the user via the control panel are applied to both
devices on the same card.
In the case of a dual safe area generator
(SA-1D) for example, both SA-1 channels are set to work identically,
and cannot operate separately.
The Eyeheight flexiPanel (FP-9) has
eight device buttons but the flexiBox (FB-9) has six device cards.
Why the extra two buttons?
The flexiPanel can control up to eight
devices, two of which can be in a second flexiBox. This is simple
and convenient way of adding to the flexibility of the system
without having to use another control panel.
How is a function card controlled
when using the Eyeheight miniBox?
The miniBox (MB-9) is a small half rack wide
enclosure designed to hold just one function card. With an Eyeheight
function card fitted, it makes up a low cost desk-top system
The miniBox is equipped with 5 front panel
switches, (4 numbered switches and a "Fn" switch). These
are used to recall the memory settings on the particular function
card. The number of memories that can be accessed depends on how
many memories each function card has but this allows the user to
access up to 8 memories in total. Memories 1-4 are recalled by
pressing switches 1 through 4. Memories 5-8 are recalled by holding
the "Fn" switch down and pressing the 1 through 4
The switches can be programmed using a
flexiPanel (FP-9) connected via the 9-way I-Bus connector on the
front panel of the Mini-Box. Once the desired settings for each
memory have been decided, they are stored in the required memory
(number 1 - 8). The Flexi-Panel is then disconnected from the
miniBox which is operated completely stand-alone from then onwards,
the user changing the operation of the function card inside by
recalling different memories by the front panel switches.
Using the equipment in this way means it is
no longer possible to use the usual menus and parameter adjustments
that can be made when using the 1 U flexiBox (FB-9) and flexiPanel
(FP-9) with function cards.
External control of the miniBox is also
possible by means of the Ext. Sw. connector which allows direct
hard-wired momentary switch connection to take place in parallel
with the numbered front panel 1-4 and "Fn" switches. Open
collector outputs are also provided for external LEDs to be
connected, to indicate which switch number has been activated.