SYSTEM AND TECHNIQUE FOR HANDS-FREE VOICE COMMUNICATION USING MICROPHONE ARRAY
Patent number: RS49875
Invention refers to a system and procedure for hands-free voice communication in video-phone or teleconference applications and the use thereof based on microphone sequence the aim of which is a high quality recording of the voice of a speaker in a room and in the conditions of a large distance, of existing disturbances, accoustic echo from a distant speaker and TV programme, reverberation of the room and move of the speaker in the room.
The system consists of: a digital TV receiver and a digital camera for reproduction and record of the image, respective, stereo loudspeakers and microphone set for reproduction and recording the sound, respectively, amplifying and aquzitional module for audio signals and DSP for treatment of accoustic signals.
The procedure for treatment of microphone signal is carried out in the frequency domain and consists from: accoustic echo suppression, coming from the signal of distant speaker and stereo signal of TV programme, filtration of the adjacent speaker in the space in relation to the sources of noise and reverberation of the room on the basis of adaptive characteristics of directing the microphone sequence, location of the speaker in horisontal plane, suppression of all the residual disturbances and adaptive control of amplifying the sending signal. 7 channels FFT AEC accoustic echo suppresser SD-BF superdirective directing unit DOA azimuth NR echo suppresser AGC FFT Toward a distant speaker Camera surveilance control.
TECHNIQUE AND SYSTEM FOR AUTOMATIC GAIN CONTROL (AGC) USING MICROPHONE ARRAY
Patent number: RS49857
Invention belongs to the procedure and system for automatic control of a speech signal gain (AGC) recorded by means of a microphone sequence in specific ‘hands-free’ teleconference conditions of communication and in accoustic ambience with large level of various interferences such as: accoustic echo, interferential noise, reverberation and other speakers, as well as a different position of a speaker in space in comparison to the microphone sequence.
The procedure for AGC consists from: estimation of trajectory of peak speech power of the speech signal, estimation of powers of accoustic interferences and participation thereof in determination of coeficient of increase, determination of the downward(11)compression characteristics, determination of coefficient of amplification for AGC and formation of speech signal output with minimal distortions.
The system consists of one input and one output for the current speech signal, several inputs whereto the signals are brought for accoustic disturbance estimation, and three inputs whereto are set three constants that define the field of active functioning AGC: nominal power of output signal, dynamics of change of automatic gain control (AGC) system and maximal downward slant of compression characteristics. AEC SD VF Power Estimation of Diffused Noise Echo Power Estimation Formula u cetvrtom redu odozgo Slope estimation Gain coefficientPeak Power Estimation Moment Power estimation.
SYSTEM AND TECHNIQUE FOR SPEAKER LOCALIZATION USING MICROPHONE ARRAY
Patent number: RS49859
Invention refers to a speaker localization system and procedure in open or closed room, which is based on the grounds of implementation of a set of microphone in sequence with arbitrary number of microphones and which may be applied in control and management of robots, video surveillance and processes that demand interactive information on localization of a speeker, or in ‘hands-free’ communication systems such as teleconference systems, video conference systems, speakerphones, and alike.
The system consists of a microphone in series, activation module and a module for treatment of acoustic and speech signals.
The procedure is based on the cross correllation, i.e. phase transformation PHAT, optimized according to characteristics of speech signal and on a detector of speech activity (VAD) on the base of superdirective rectifier (SD-BF). Optimization of PHAT cross correlation achieves improved accuracy and more precise estimation of angle and azimuth [theta] while application of SD-BF in VAD improves the reliability of estimation in dynamic conditions of application of the system for localization of a speaker. Determination of a filtration function W(n) Pretreatment of a signal and FFT Cross correlation analysis -> PHAT -> Azimuth estimation -> VAD
TECHNIQUE TO ESTIMATE DIRECTION OF ARRIVAL OF SOUND SOURCE BY DUAL MICROPHONE SYSTEM
Patent number: RS49858
Invention uses dual microphone system based on a computer and consists a procedure by means of which estimation of direction of sound arrival is carried out from active speaker in accoustic ambience with reverberation and noise. Herewith described procedure anticipates a michophone pair set in a horisontal area, as to a definced distance, and that the procedure detects the presence of an active speaker and determines its direction, i.e azimuth angle in comparison to the symmetry to a microphone in horisontal plane.
Invention is characterized by specific procedures : (1) pre-treatment of a segment of one microphone signal with a task to detect segments with accoustic sounds, as these are suitable at cross-correlation of signal. It uses an analysis of values of several properties in frequential domain, i.e. signal power in certain spectral range, unification of spectrum and spectral centroid; (2) interpolation of subintervals of temporal and cross-correlative function for the purpose of increase in accuracy of direction of arrival which is being aimed to increase the reliability and reduce the function of final estimation of arriving direction.
This system employs a personal computer wherein are implemented procedural treatments from the invention and may be implemented in the field of localization of a speaker, i.e. to control direction of a robot, improve the quality of a speech signal, control the camera surveilance and alike.
METHOD AND TECHNIQUE FOR REMOTE LIGHTING CONTROL USING ACCELERATION MEASURING CIRCUITS
Patent number: RS52364
Invention herewith described refers to the method and technique for remote lighting control using acceleration measuring circuits that includes the remote controllers that manage the lighting using the acceleration sensor and (i) two-dimensional movements, rotation around the axis, and (ii) three-dimensional movements i.e. free rotation.
The sensor for the acceleration measuring is mounted and fixed on the printed circuit board; on the same printed circuit board, there is an autonomous power source and block for wireless communication. These three components make the unit which is installed into the movable part of the remote controller – switch.
When rotating the movable part of the controller, its absolute position relative to the Earth’s axis is determined and on the basis of information obtained from the sensor the rotation angle is calculated that corresponds to a command issued to the controlled device – lighting body.
SYSTEM FOR MARKING ROAD EDGE IN LOW VISIBILITY CONDITIONS USING WIRELESSLY COUPLED SIGNALLING DEVICES
Patent number: RS53023
The invention herewith described refers to the system for marking the road edge in low visibility conditions using wirelessly coupled signalling devices mounted near the road edge. The signalling devices dynamically emit signalling light in the direction of a vehicle movement. The signalling light is activated by the first signalling device, after its detection of a vehicle, which sends the message via the wireless communication to the next signalling device in the direction of the vehicle movement. After the the reception of the message, the next signalling device also activates the signalling light and based on the built in logic, decides whether to pass the message further to the next signalling device. Also, each signalling device which turns on its signalling light, initiates the turning on the signalling light by its signalling device pair on the other side of the road.
In this way, the series of light sources is formed that illuminate both sides of the road in the direction of a vehicle movement, and in the way that road edge on the road side of the vehicle movement is marked in red light while the opposite direction road edge is marked in white light. Immediately after the vehicle passes the signalling device, it stops emitting the light. The system dynamic is accomplished therewith that only certain number of devices emits the signalling light in the direction of a vehicle movement, immediately ahead of the vehicle. The system can also work in the special signalling mode in which it provides information to drivers about unusual road circumstances (traffic accidents, road work ahead, traffic jam, passing of special purpose vehicles).; The system enters this operating mode after receiving the appropriate message sent from the special purpose vehicles (police vehicle, fire-fighter vehicle, ambulance vehicle, road maintenance vehicle…).
METHOD AND SYSTEM FOR AUTOMATIC MULTIMEDIA DEVICE TESTING
Patent number: RS53045
Invention herewith described refers to the device verification and test process that has an important part in the product development, production and marketing process. Test methods that are applied nowadays are mainlv based on manual verification. The methodologv presented in this invention facilitates the automation of verification and test processes of the multimedia devices as well as greater reliability of the final device (exclussion of the human factor from the testing process), reduces the production costs (by acceleration of the verification and test processes and the shorter time to market) and provides an opportunity to reuse the created verification procedures.
REMOTE CONTROLLED SWITCH FOR THE LIGHT INTENSITY CONTROL
Patent number: RS53478
Invention herewith described refers to the remote controlled switch for the light intensity control where the turning ON/OFF and the light intensity can be controlled. The invention also refers to the creation of a network of switches that can send commands to each other and thus provide the control of any switch from any physical location. The remote controlled switches for the light intensity control can be used in the network of controlled power elements (sockets and switches for the light intensity control), which is controlled by the remote controller and some commands can be sent from the switches for the light intensity control and the sockets.
INTELLIGENT VOLTAGE DIVIDER
Patent number: RS53442
Invention herewith described refers to the intelligent voltage dividers. In recent years, under the influence of new technologies, the voltage dividers have been much changed. Nevertheless there is still room for further improvements. Most of the changes apply to the device protection against the power supply loss. The described patent is one such solution that is based on energy expenditure measurement and the control of every single socket.
INTELLIGENTLY MANAGED SYSTEM FOR THE POWER SUPPLY CONTROL OF ELECTRIC APPLIANCES CONNECTED TO POWER LINES
Patent number: RS53477
Invention herewith described refers to the intelligently managed system for the power supply control of electric appliances connected to power lines. The system allows the user an easy control of electric elements (switches and sockets for the light intensity control), and therefore the appliances attached to them. The system consists of the remote controlled switches for the light intensity control that control the light sources, of the remote controlled power sockets, and the remote controllers easy to use and control each element, and group of elements defined by the user.Elements of the system do not require new wiring, but they are installed instead of the existing standard sockets and switches for the light intensity control.
ECHO SUPPRESSION SYSTEM BASED ON USB AUDIO DEVICES
Patent number: RS53480
The invention herewith described refers to design of the system for echo suppression based on USB audio devices.Increase of the number of devices used for the voice communication over IP network has increased the need for the reduction of the echo of audio devices, therefore this invention refers to the architecture of the system used to suppress the echo where the time delay between the emitted sound and the recorded sound for the later processing is short and almost constant. This system can also be used for other audio signal processing where it is important that the time delay is short and almost constant. Delay of the signal, which is short and little variable in time, allows more quality and easier sound processing that require less processing ability of the system, and thus can be used on less powerful computers.
THE METHOD OF WORK OF THE REMOTE CONTROLLER
Patent number: RS53603
Invention herewith described refers to the remote control unit for the energy element control (switches for the light intensity control and outlets), where the condition of the element can be monitored and controlled. The invention also refers to the creation of network of the elements that are controlled by the remote control unit, where the elements can be controlled, as individual elements or as parts of one or more groups.The remote control unit consists of the radio transmitter-receiver – RF, the central processing unit (CPU) – Processor, the keyboard, the battery, and the control electronics.
PROCEDURE AND SYSTEM FOR AUTOMATIC EVALUATION OF VIDEO QUALITY USING MULTI-MODELS
Patent number: RS53604
Invention herewith described refers to the procedure and system for automatic evaluation of video material based on the perceptual approach with the application of the multi-models. Each model from the multi-model is constructed and optimized over the appropriate cluster of samples of calculated objective characteristics of video frames in the formed space of objective characteristics. In addition to the independent partial models of quality evaluation defined over the specific clusters in space of characteristics, the invention also refers to the inclusion in the multi-model of the integral model of quality constructed by using the entire set of samples in the space of characteristics. The final evaluation of video quality is the weighted sum of evaluations of individual models that form the multi-model.; The influence of the individual model determines the affiliation of the vectors of video frame characteristics using the corresponding space clusters of the objective characteristics.
PROCEDURE AND SYSTEM FOR VIDEO DATA COMPRESSION WITHOUT LOSS IN REAL TIME
Patent number: RS53564
Invention herewith described refers to the procedure and system for video data compression and decompression without loss in real time. The idea of the invention is to provide transmission of high definition (HD) video signals without loss in real time, via Ethernet network for data flow, which is achieved by using the method of the fast image compression without the loss based on the content similarity of adjacent horizontal lines within the image and the parallel formation of the multiple compressed video streams with similar content.; On the encoder side, there is accomplished a fixed or adaptive image partitioning into equal segments with the pre-scheduled segmentation step, depending on image content variability, where is for the adjacent horizontal segments of the image assumed that are highly correlated with each other and that can be compressed to approximately the same length. Simultaneously are formed the multiple video streams so that each video stream one after another contains one horizontal line from each of the existing segments of the image, whereby there is achieved the content similarity of video streams.; At the same time, there is performed the compression of video streams with similar content using the entropy coding method, where the pixels in one horizontal line which successively appear more often, are coded shorter than those appearing less frequently, whereby there is achieved the video data compression without losses. The content similarity of the video streams allows the parallel use of the same processing cluster over the video streams thus contributing to higher speed of video data decompression on the decoder side.
THE METHOD OF OPERATION OF REMOTE CONTROLLED POWER OUTLET
Patent number: RS53535
Invention herewith described refers to the remote controlled outlets where the turning ON/OFF and the maximum power can be controlled. It also refers to the creation of a network of the outlets that can be grouped and controlled either individually or as a part of the group. Furthermore, the outlet refers to the remote controlled outlets able to monitor power consumption of the switched on appliance and to determine the normal behaviour over a period of time (normal consumption) and to cut off the power supply of the appliance when detects the anomaly in the power consumption. Further on the invention refers to the remote controlled smart outlets that can read information concerning the power consumption of an appliance as well as control its power supply in accordance with the received information.
METHOD AND SYSTEM FOR WIRELESS DETECTING PRESENCE OF INDIVIDUALS AUTOMATION OF DOMESTIC ELECTRICAL INSTALLATIONS
Patent number: RS53536
Invention herewith described refers to the improvement of the existing solutions in the field of implementation and automation of management of the smart electrical installations. The invention includes the system and method for detecting the presence of the user applied to the automatic control of lighting and other domestic installations using an existing wireless communication network and the changes of the signal strength indicator value (in English: Received Signal Strength Indicator – RSSI) between the stationary communication nodes. The presented method involves monitoring the change in value of the RSSI by disruption of the initial value of the established communication field between the nodes within the premises due to the entry/exit of an individual in the room.; The entry of an individual into the established field of communication causes the change of RSSI that is periodically read after any exchange of messages between the nodes. Based on detected changes, a control signal is generated which will be transmitted to the central control unit that converts the signal into a command for room lighting control or other domestic electrical appliances. Implementation of the system includes at least two nodes, which are at the domestic installation level implemented in the form of the smart socket and the smart switch for lighting and the central control unit as a device for managing exchange of messages and commands. These basic units of the system communicate with each other, follow the change of RSSI between the nodes and based on the crossing preset thresholds of signal strength variation, perform the control of room lighting.; In addition to the lighting control, the system manages any electrical device connected to the smart sockets by their switching on or off if it is the required and predefined operation.
TOPOLOGY DISCOVERY IN SMART ROAD-EDGE MARKING SYSTEM
Patent number: RS53646
Invention herewith described refers to the objective of this invention which is offering a solution for the initial topology discovery, the subsequent transition to the normal mode of operation, and management of devices i.e. nodes placed at the edges of the road. The node is turning on its signalling lights only if its adjacent nodes have sent the message, and ignores the messages sent from the nodes that may be at a greater distance or on adjacent roads (e.g. as on intersections). In order to act properly upon a message reception, each node must have knowledge of the relative positions of other nodes in the vicinity. This is actually a topology discovery problem whose solution is proposed by this invention.
SYSTEM FOR VEHICLE DETECTION THROUGH WIRELESS NETWORK OF AMBIENT LIGHT SENSORS
Patent number: RS53655
Invention herewith described refers to the system for vehicle detection through the wireless network of ambient light sensors. The marking system is implemented as a wireless network of signalling devices mounted near the edge of the road and activated by the vehicle detection. The system functions in the hibernation mode during the day, when it collects energy, possibly using solar cells. The system is in the operating mode during night or in low visibility conditions, when it is capable of detecting vehicles and turning signalling lights on. Additionally, its role is to differentiate between night time and daytime and correspondingly determine whether the system should operate in active or hibernation mode, respectively. The ambient light sensors should have an adjustable sensitivity threshold level and when the illumination is greater than the particular threshold, the sensor forwards that information to the appropriate sub-system. The ambient light sensor threshold level is flexible depending on the local background illumination and the light transparency of the particular sensor.
SYSTEM AND METHOD FOR VEHICLE DETECTION IN WIRELESS NETWORK OF SIGNALLING DEVICES
Patent number: RS53656
Invention herewith described refers to the system and method for detecting vehicles in a wireless network of signalling devices. The invention presents the specific system and methods for detection of vehicular traffic without the special sensors. The invention relates to the use of radio transmission associated with a low-power wireless communication protocol existing in the system and in the smart road-edge marking method. The invention is realized using the measurement of the received signal strength indication (RSSI), which has become a standard feature in most wireless devices. Techniques based on the received signal strength indication (RSSI) measurement do not require additional devices, thus contributing to the smaller size and lower price of the device and more simplified maintenance. Also, this technique has no significant impact on the power consumption. Three different solutions for the detection of vehicles based on measurements of RSSI values of the wireless signal are given in the presented patent.
FORMING PROCESS OF RADIO MAPS FOR WIRELESS INDOOR LOCALIZATION SYSTEMS
Patent number: RS53647
Invention herewith described refers to the procedure for processing the measured received signal strength (so called RSSI) during the process of forming a “radio map” that will be used in localization of devices in the wireless communication environment. The m measured RSSI vectors for each reference point in the radio map (511) will be grouped in k clusters and centres of each cluster, called prototypes, become the representative RSSI vectors of the given reference point in the radio map (512). In this way, the data compression in the radio map is achieved as well as detection of the most representative values of the received signal strength for each point of the space. With that any reference point of the radio map is defined by k vectors of prototypes of the received signal containing strengths of the signal (RSSI) received from the base stations. For clustering m vectors of the measured RSSI signals, the algorithm for unsupervised learning is used, which is characterized by its ability that the output vectors preserve the input data topology. The measurement procedure of RSSI signals (500), their processing (510) and storage (520) is repeated for all reference points of the previously defined indoor space. The forming process of a “radio map” is an integral part of the localization method based on the impression of the received signal strength and is applicable at all widespread standards for the wireless communication, IEEE.802.15, IEEE.802.11, IEEE 802.16, etc.
SYSTEM AND METHOD FOR PROTECTION AGAINST BURGLARS, BASED ON USER BEHAVIOUR STUDIES
Patent number: RS53648
Invention herewith described refers to the system and method for the protection against burglars, based on the user behaviour studies. More specifically, the invention is intended to deter intrusion of potential burglars using the wireless communication network. This invention allows performing in the standby mode: studying the daily behaviour of the user, the learned behaviour classification according to the period when it incurred (For ins. working day, weekend, season …), the wireless data exchange as well as the processing and storage of classified data on the behaviour of the database. In active mode, the following is performed: selection of the appropriate form of behaviour from the database, based on the a appropriate system time, then reproducing the learned behaviour of the user in terms of the intelligent automated management of lighting or domestic electrical appliances (TV, audio …), in order to create the illusion for an external observer that the user is at home.
SYSTEM, DEVICE AND METHOD FOR MULTIMEDIA UNIT MENU AUTOMATED TESTING
Patent number: RS53796
Invention herewith described refers to the system, device and method for multimedia unit menu automated testing by analyzing the captured image of the mentioned menu, where the given image comprises the selected pre-selected field in the menu. The selection of the mentioned menu field is provided by automatic sending commands using the remote control, whereby these commands are associated with each item of the hierarchical menu structure loaded through the input file. The aforementioned image analysis is accomplished by the optical character recognition algorithm where the selected field from the given image is recognized, and then range of characters within that field is recognized and compared with the currently processed item of the hierarchical structure. The results of the comparison are presented in the form of a report.
METHOD AND SYSTEM FOR SIMULTANEOUS AUTOMATED TESTING OF SEVERAL MULTIMEDIA DEVICES
Patent number: RS53917
Invention herewith described refers to the developed method and system for simultaneous automated testing of several multimedia devices, which provides an environment capable to bring simultaneously a large number of commands and input signals to the reference device and several multimedia devices that are tested simultaneously, to simultaneously record the output signal from the tested reference device and several multimedia devices and using algorithms for the similarity testing, simultaneously test and generate the reports on results of several deviations of several multimedia devices in relation to the reference device.
SYSTEM AND METHOD FOR THE FREE SPEECH COMMUNICATION THROUGH INTERNET VOIP PROTOCOL
Patent number: RS53630
Invention herewith described refers to the system and the method for free speech communication through the internet VoIP protocol and it is intended for making a video phone call or a teleconference. The system uses a series of microphones to emphasize the conversations in the conditions of the presence of disturbances such as ambient noise, acoustic echo and reverberation of the room. The system consists of a PC monitor or a TV set, a camera, the stereo or mono speakers, and the series of microphones, a demand-side (DSP) platform for the digital signal processing and the appropriate interfaces for communication via the Internet. The signal processing procedure is adjusted to the acoustic conditions of the room with reverberation, to the present ambient noise conditions, to the acoustic echo as well as to the VoIP transfer through the real channels with losses. The signal processing includes spatial filtering by a directional beam forming, the acoustic echo suppression, the evaluation and compensation of the frequency offset AD and the DA converters, evaluation and compensation of the total buffer delay, the buffer loss detection and compensation, the stationary noise cancelling and the automatic gain control based on the neural network.
SYSTEM AND METHOD FOR AUTOMATED TOUCH SENSITIVE TESTING DEVICES
Patent number: RS53976
Invention herewith described refers to the system and the method for the automated touch sensitive testing devices (touch screen), mobile phones, laptops, systems for the passage control at the terminals, entertainment systems, cameras, computers, etc. The system includes the printed circuit board with variable length segments, which creates changes in the capacitive layer of the tested device surface, the so-called grabber card which prepares the signal for further processing on a computer, the computer with appropriate software to run the test, define the test commands and processing the test results, and a camera for recording the resulting changes. The board representing the testing device is connected to the computer and depending on the selected test scenarios induces the excitation of certain portions of the surface under the test, creating the effect of manual issuing the commands by pressure of the users finger or hand. The devices having the audio/video output, the signals generated by induced excitation, the signal of the command for activation of an option on the touch screen are sent to the so-called frame grabber card that is connected to the computer where the further verification and analysis are performed. The system also includes the sending of the obtained results with devices that do not have audio/video output by using an extra camera mounted above the touch screen surface that captures the newly arisen changes and also sends them to the further software processing. The entire process is automated and provides the movement of the board for testing as well as the recording camera. The invention increases the reliability of the terminal device because it excludes the human factor by the absence of physical excitation from the testing process and opens the possibility for additional analysis of the obtained test sequences.
DEVICE FOR CONFIGURATION AND GRAPHICAL USER INTERFACE OF PARAMETERS OF INTELLIGENTLY GUIDED SYSTEM FOR CONTROL OF GROUPED ELECTRICAL DEVICES CONNECTED TO THE POWER LINES
Patent number: RS53649
The invention herewith described refers to the device for configuration and graphical user interface of parameters of the intelligently guided system for the control of the grouped electrical devices connected to the power lines. It refers to the architecture of the device for displaying information about the configuration and the configuration of electrical devices that are the part of an intelligently guided system for the control of the grouped electrical devices connected to the power lines. Electrical devices are connected wirelessly to the device for displaying their configuration and the status. The display of information about the configuration, the status of electrical devices and the configuration changes is implemented on the NVV TV receiver. The data are displayed on the NVV TV receiver, and can be changed with the remote controller of the NVV TV receiver.
METHOD AND SYSTEM FOR AUTOMATED TESTING OF GROUP OF DEVICES BY GENERATING TEST SEQUENCES OF COMMANDS
Patent number: RS53797
Invention herewith described refers to the method and system for the automated testing of group of devices by generating the test sequences of commands based on the selected combination of the commands through the control unit. The method designed in such way is implemented in the test system for serial generation of the unique test cases by the creation of the map of the selected commands for certain functionality of the multimedia devices. The method involves a combination of the so-called IR codes (IR signals are the signals of the electromagnetic spectrum whose wavelength is larger than the wavelength of the visible light spectrum, and the frequency is smaller) which the user selects in order to achieve the desired function of the multimedia devices – TV, DVD, Set Top Box etc, which is then used as the starting test sequence to avoid manual re-entering of the combinations of commands with the remote control. The system thus provides a technique that automates the testing process and increases the speed and accuracy. The current systems have been offering the series of the software applications for storing the IR codes of the individual commands, but they have not implemented the combinations of commands and their further use in the field of testing and quality assurance.
METHOD FOR SYNCHRONIZING AUDIO AND VIDEO SIGNALS BY ASSOCIATING COLOUR ARRAY
Patent number: RS53973
Invention herewith described refers to the method for synchronizing audio and video signals by associating a colour array and covers the area of adequate reception of the multimedia content and synchronization of audio and video signals with the increasing accuracy during synchronization. The method applies to the specific implementation of the single colour array in the process of encoding the video streams. The colour array carries information about the current frame, the appropriate frame rate, the total number of frames, the time of issuance as well as the horizontal and vertical resolution. Unlike the existing solutions, and the conducted verification methods there has been revealed that this method of synchronization provides the relief in terms of the coding step implementation and provides the higher accuracy.
METHOD FOR DETECTION ACCURACY OF THROWING THE ELECTRONIC DICE FOR GAMES AND GAMES OF CHANCE
Patent number: RS53974
Invention herewith described refers to the method for detection the accuracy of throwing the electronic dice for the games and the games of chance and covers the field of development of the so called “intelligent” tools for the games and the games of chance in order to detect the accidental or intentional errors that may appear in this field. It refers to a specific method of detection of the accuracy of throwing the electronic dice in the games and the games of chance, where the method covers the throwing of dice, detection whether the dice is thrown properly and sending a message about the current (proper or improper) the final state of the dice. The invention also includes the sending of the final state of the dice in terms of the number value that was detected after the establishment of the steady state on a horizontal surface. It also involves the detections of changes in the value of the vector acceleration by the accelerometer, the electronic components located within the dice, processes the information and sends the same to the control unit. The control unit further informs the user that the throw was proper or it instructs the user to retry the throw. Also, the control unit can repeat the information to the user of the final state of the dice, i.e. of the number acquired if the attempt resulted in the proper throw.
SYSTEM FOR CONSUMER CONNECTION TO AND DISCONNECTION FROM ELECTRICAL NETWORK WITH THE FUNCTION OF THE CONTROLLER POWER SUPPLY
Patent number: RS54280
Invention herewith described refers to the system for consumer connection to and disconnection from the electrical network with the function of the controller power supply and the news is that it covers the field of the smart installations with the special emphasis on the implementation of the power electronic control of the so-called “smart switches”. The invention is applicable only to a particular class of consumers such as electric motors, heaters and incandescent bulbs which have the capacity to allow in the power off state the “leakage” of the order of 1 mA. This effect creates the possibility that during the power off state of the consumer, the electricity of the order of 1 mA flows through the electric circuit and charges the capacitor which supplies the electronic components of the so-called “intelligent switch”. Unlike the previous solutions and accomplished electricity supplies, it has been discovered that this method provides the easier way in terms of implementation and safety for certain types of consumers.
THE METHOD AND THE SYSTEM FOR WIRELESS DEVICE-FREE HUMAN PRESENCE DETECTION BASED ON INCREMENTAL PROCEDURE FOR EXTRACTING PRINCIPAL COMPONENTS OF THE SIGNAL STRENGTHS VARIATIONS MATRIX COMBINED WITH FUZZY LOGIC INFERENCE MECHANISM
Patent number: RS54281
The presented invention significantlv improves the existing solutions in the area of human presence detection sensors. In contrary to conventional sensor solutions, the proposed invention detects the presence of a human by analyzing the variation of the received signal strength indicator (RSSI). The method exploits the fact that the human body interferes with radio signals by introducing irregularities in the radio signature which indicate possible human presence. The motivation comes from a need for reducing the installation complexity and development costs induced by the integration of specific human presence detection sensors. By analyzing radio signals between radio transceivers embedded in 2.4 GHz (Zigbee) wireless power outlets, a certain level of sensorial intelligence is introduced without additional sensors and visual modifications of the environment. The proposed invention is made of the iterative algorithm for the extraction of principal components (Principal Components Analysis – PCA) from the matrix of inter-outlets radio communication links and Mamdani’s fuzzy logic inference engine. Strong interferences with the radio signal are expressed when a human body encounters the signal in its propagation path. Therefore, the presence of a human within the wireless network range results in significant signal strength variations at the receiver, whereas the degree of the signal strength variation is correlated with the level of human motion. The RSSI data processed with the proposed invention, efficiently determine the presence of a human in the vicinity of the smart outlets.
METHOD FOR AUTOMATIC COMPRESSION OF VIDEO SIGNAL DURING THE FUNCTIONAL TESTING OF MULTIMEDIA DEVICES
Patent number: RS54312
The invention presents a method based on intelligent automated testing of multimedia devices, primarily set-top boxes, with a goal to increase their reliability. Testing of multimedia devices is done by comparing incoming video sequences of the reference signal and outgoing video signal of the device being tested. Incoming video content is obtained in real time (“online”, “live”) and, in order to save storage space, the need for large communication bandwidth is reduced. Also, the reference (114) and outgoing video signal (113) is being tested and, in an identical way their contents and quality are reduced. Reducing the video resolution is done until a certain threshold of the damage quality is reached (the highest measure that can be reached for video sequence comparison), which depends on the size of the image being reduced. An automated test system composed of control logic (116), a remote control emulator and finite state machines manipulate both devices and tests software on the device. Based on tracking changes of differences in the real response of the device and reference signal, as well as already familiar test cases implemented by the commands of remote control emulator, the potential error in test cases is being detected and automatically marked.
METHOD FOR TESTING OF MULTIMEDIA DEVICES BY ANALYZING OF THE INPUT SEQUENCES
Patent number: RS54313
The invention proposes a method for testing of multimedia devices based on the analysis of the input video sequence and analysis of the sequences of commands that the user specifies. The method proposes more detailed testing because it contributes to detecting errors in the input video sequence. The method also suggests an analysis of input sequences of commands that the user specifies, and its proper interpretation of the purpose of manifesting the correct function of the device under test. In the diagram of input test sequence of commands to perform additional monitoring of the transition from the current state to the desired state, and in the event that an error occurs control testing ensures return to the initial state diagram test sequences of commands. It is an additional novelty of an invention enters because it offers a practical solution instead of the old physical resetting the device under test.
METHOD FOR AUTOMATIC SELECTION OF THE TEST SEQUENCES OF COMMANDS
Patent number: RS54532
The invention covers a method for intelligent selection of the test sequences of commands (combination of commands) to be used in automated functional testing of multimedia devices. The combination of commands that the user is selecting represents one test sequence of commands. Each test sequence of commands is modeled by a diagram of the transition probabilities. Each command characterizes one state in a state diagram. The method involves the analysis of all test sequences of commands in order to select the optimal test sequences of commands and defining the number of their repetitions in order to achieve a given accuracy testing. Besides the transition probabilities the selecting of optimal test sequence of commands is based on the belonging of the current test sequence to a particular group of commands with the aim to optimize the testing process.
METHOD FOR CONFIGURING A PROGRAMMABLE DEVICE OVER POWER LINES
Patent number: RS54811
The invention proposes a specific method for configuring a programmable electrical device (103). The method introduces increasing flexibility of device (103) functionality, using a new approach for device configuration exclusively via power lines (104). In order for the invention to be fully usable in practice, the existence of dedicated power supply interface (102), which provides data transfer between a programmer (106) and a device (103), is necessary. Power supply interface (102) enables, besides the communication via the power lines (104), the possibility of supplying the device (103) that is being configured. Therefore, the devices that control the system have limited power supply and can be used. The basic characteristics of this method are: the two-way approachable communication interface (“one wire”), a “half duplex” bidirectional communication, parallel power supplying and communication between the device being configured and the programmable device.
THE METHOD OF INTERPOLATION WITHOUT CHANGING THE EDGES WITH VARIABLE SCALING FACTOR
Patent number: RS55002
The invention introduces a new method for image interpolation with a basic idea to preserve edges in the image. The method consists of two steps. In the first step is being performed the division of original points in maximum two groups and determined to which group belongs the interpolated point, and the second step in which is performed the interpolation using gravity algorithm based solely on the value of points in the group of the interpolated point.