Antiques Online Catalogue -
Antiques and Collectables web site. It was
designed to demonstrate the E-commerce capabilities.
Quantitative and qualitative data compression and encryption. Unique
adaptive method for physiological signals data processing.
Data compression removes or minimizes redundancy in
a file, which reduces the amount of time needed to
encrypt, decrypt and transmit a file. As the demand
for digital data communication increases and it is
part of our life, data security becomes complex and
more important problem. Encryption can be an
important tool to help improve data security.
Encryption that applied after compression requires
additional processing or hardware. It is desired to
develop an algorithm that can combine the
compression with encryption.
The degree of compression dependent on the usage of
the data, that is, we would allow a higher level of
compression or some measured loss of data in certain
applications where there is a need only for the
qualitative use of the data. This is obvious for
example in displaying visual data where the original
resolution is much higher than the resolution of the
display media. On the other hand when the data is to
be used for qualitative analysis we cannot allow any
loss of data.
Using standard compression algorithms for important
data exposes the risk for breach of security.
Therefore, adaptive and dedicated compression
algorithms are required, which in addition may
provide simultaneous encryption for maximum
Regional Cerebral Activity
The generation of Regional Cerebral Activity (RCA)
signals. Localization of inactive
or damaged nerve cells for early detection of brain
Messages (signals) sent by healthy nerve cells
(neurons) are different from those sent by damaged,
inactive, sick nerve cells. As the local EEG signal
is weaker it is absorbed by its neighboring regions
and they are not necessarily reflected in the
cumulative EEG detected at scalp level by
In addition, local, regional nerve cells, which are
inactive, damaged or suspected, are sending
messages, which may correspond to early warning.
These local messages are lost in the total cerebral
activity signals. They might be detected at a much
later stage when more damaged cells join the region,
or when symptomatic effects take place, that is,
when it is too late.
We can separate and amplify these local messages and
generate a new imaging diagnostic tool for brain
mapping of the Regional Cerebral Activity (RCA).
This RCA signal in addition to standard EEG and
other Neuro-Clinical findings may enable a more
accurate localization of inactive or damaged nerve
cells that may lead to the possibility of an early
detection of brain abnormalities.
Voice Activated Devices
Voice activated devices using unique security
encryption for medical and non-medical applications.
A voice command device (VCD) is a
device that can be activated by human voice. It is
useful when user is unable to use his hands for
various reasons. Some VCDs are speaker-independent,
so they can respond to multiple voices, regardless
of accent or dialectal influences.
The need for new types of Voice Recognition
Algorithms is obvious, especially for certain
medical or security related applications.
Virtual Reality (VR) and simulations for medical
and other applications.
VR is a technology which
enables the interaction with an imaginary or real
The applications are in the medical field, like
remote surgery, gaming, industrial and military
applications. The demand for new simulation systems
is very high.
Picture Archiving and Communication
PACS is used in medical
applications, such as imaging, pictures generated by
multi-modalities have different formats, are stored
in various storage media and scattered in different
PACS are computers or networks dedicated to the
storage, retrieval, distribution and presentation of
One of the earliest PACS system developed by Dr.
Ram was presented at the Radiological Society of
North America (RSNA) scientific meeting, McCormick place, in
Chicago, USA in 1981.