1991. The implementation of a controlling system for a telex telecommunication line using a microprocessor device. The enhancements for the DOS single-tasking operating system involving multi-tasking operations in real-time.
1992. Development of procedures for fast processing and presentation of documents compressed using 1D and 2D Huffman encoding and procedures for fast conversion of such documents into other formats including TIFF, BMP, PCX.
1994. Development of algorithms and a system for recording and automated recognition of voiced words. A recorded and digitalized voice signal wa transformed into a low-count string of binary numbers. This was possible because original voice sounds contain a lot of redundant information that is inessential with regard to the communicated content. To limit the amount of information, a linear predictive coding method was used. The following part of the analysis involved the evaluation of differences between the word that is being recorded and all other words that were recorded before. Multiple calculations, estimations and comparisons result in a decision. This step of the procedure uses the dynamic time-scaling algorithm that is compliant with the LPC coding algorithm.
1995. Design and implementation of a system for the top-frame transmission of slowly variable television pictures using switch telephone lines.
1996. Construction of devices based on the DSP technology intended for generating, acquiring and analyses of sound signals. Using Butterworth’s 4th order digital filter in a programmable DSP-based system for detecting signals of telephone exchanges, modem and fax devices and human voice. Using the VoiceView and AudioSpan technologies for the simultaneous transmission of data and human voice.
1999. Design and implementation of the first procedures for the analyses of controlling analogue telecommunication signals during the phone call recording process. Using the FFT and Goertzel algorithms and digital filters.
2002. Reconstructing the image from an audio recording of a fax transmission (the Hilbert and Fourier transform, Bell 212, T4, T3, V21, T30, QAM, TCM).
2005. Development of universal procedures for disc space management ensuring power interruption resistance of the system system. The enhancement of Windows administrative functions by adding the mechanisms for disabling the deleting of files from the disc regardless of current user right.
2008. Using the spectrum of IP protocols in the architecture of dispersed telecommunication channel recording systems.
2009. Implementation of high-efficency technic(HA,Teaming) for improving the reliability of designed IT systems and using of advanced technologies for fast processing of digital acoustic signals (optimization at the micro-processor level using the SSE2, SSE3 and SSSE3 instructions and multi-processor and multi-core processing).
2010. Preparing the algorithm for a module detecting anomalies in IT system performance (including detection of system security breaches). It uses the method of reference profile with current user activity. The profile included the four categories of parameters, including user activity intensity measures, audit record distribution measures, categorical measures and numerical measures.
2012. Design of a new method and system for identification, archiving and playing back HTTP communication sessions, due to which it is possible to display the content and layout of HTML pages, unchanged in comparison to the pages that were transmitted while historical sessions were recorded. The developed technology has been registered with a patent claim of Compol2.