Abstract: Architecture in which a data bus is by its data outputs is interconnected with N parallel submodules (9 or 19) specialized to compute CRC values from given parts of data bus word (9.1 or 19.1), the number of which (N) is given by the maximal number of data packets transferred in a single data bus word; a unique form of intermediate CRC values distribution between submodules (9) through signals (9.2, 9.4) and register (10) in serial version of top-level architecture or between submodules (19) through signals (19.2, 19.4, 19.5, 19.6) and register (20) in parallel version of the top-level architecture, where the internal structure of individual submodules (9 or 19) is specifically tailored for such an arrangement; and a structure of each submodule (9 or 19) capable of processing one part of data bus word separates the main CRC value computation is disclosed.

Abstract: The system contains at least one basic block formed by a first multiplexer having an output is connected to a flag register memory, implemented as a LUT table. An output of a circuit for write permit to the memory is connected to the input of the write signal to the memory, which is further equipped with the clock signal input and the data input. The data output from the memory of each basic block is connected to a masking block relevant for the given basic block. The outputs of these masking blocks are connected to the inputs of the second multiplexer, while its output is the output of the system of flags. The input of the control signal for writing to the memory of each basic block is connected to the output of the demultiplexer and to the second input of the masking block for the given basic block.

Abstract: The presented connection processes a stream data by a computer. The data is split into blocks called packets and the task is to search for a match of the data in packets with specified patterns—regular expressions, useful in the field of telecommunication technology and services. The connection may be formed within a semiconductor circuit, which serves for receiving, processing, and sending packets. This semiconductor circuit may be implemented by an FPGA-type circuit. In this way, instead of one circuit implementing the automaton with a total data width Sc, a set of simultaneously operating circuits is implemented forming several identical automata at a smaller data width Sn. This eliminates the exponential rise in the number of symbols in the automaton and at the same time it allows achieving a high throughput of the entire connection.

Abstract: A first photodetector is interconnected with a control unit equipped with a communication interface and powered by a power supply module. An output of a first optical filter is connected to an input of a first photodetector via a second optical filter, while a second output of the second optical filter is connected to an input of a second photodetector. An output of the second photodetector is connected to a control unit. A split branch of a third directional coupler is connected to the input of a third photodetector, the output of which is connected to the control unit. A split branch of a fourth directional coupler is connected to the input of a fourth photodetector, the output of which is connected to the control unit.

Abstract: The presented connection processes a stream data by a computer. The data is split into blocks called packets and the task is to search for a match of the data in packets with specified patterns—regular expressions, useful in the field of telecommunication technology and services. The connection may be formed within a semiconductor circuit, which serves for receiving, processing, and sending packets. This semiconductor circuit may be implemented by an FPGA-type circuit. In this way, instead of one circuit implementing the automaton with a total data width Sc, a set of simultaneously operating circuits is implemented forming several identical automata at a smaller data width Sn. This eliminates the exponential rise in the number of symbols in the automaton and at the same time it allows achieving a high throughput of the entire connection.

Abstract: The system contains at least one basic block formed by a first multiplexer having an output is connected to a flag register memory, implemented as a LUT table. An output of a circuit for write permit to the memory is connected to the input of the write signal to the memory, which is further equipped with the clock signal input and the data input. The data output from the memory of each basic block is connected to a masking block relevant for the given basic block. The outputs of these masking blocks are connected to the inputs of the second multiplexer, while its output is the output of the system of flags. The input of the control signal for writing to the memory of each basic block is connected to the output of the demultiplexer and to the second input of the masking block for the given basic block.

Abstract: Modular kit of the spectrally flexible device for bidirectional transmissions of optical signals sensitive to timing in the Internet and other networks in the basic embodiment contains the source of the optical holding signal, which is electrically bi-directionally interconnected with the control electronics module. This source of the optical holding signal is optically interconnected is optically interconnected by its one output via the first isolator and the first wave-sensitive coupler with one optical input/output of the semiconductor optical amplifier and/or the second output of the source of the optical holding signal is interconnected via the second isolator and the second wave-sensitive coupler with the second optical input/output of the semiconductor optical amplifier. Semiconductor optical amplifier is electrically bi-directionally interconnected with the control electronics module, the input of which is connected to the output of the power supply module.

Abstract: Modular kit of the spectrally flexible device for bidirectional transmissions of optical signals sensitive to timing in the Internet and other networks in the basic embodiment contains the source of the optical holding signal, which is electrically bi-directionally interconnected with the control electronics module. This source of the optical holding signal is optically interconnected is optically interconnected by its one output via the first isolator and the first wave-sensitive coupler with one optical input/output of the semiconductor optical amplifier and/or the second output of the source of the optical holding signal is interconnected via the second isolator and the second wave-sensitive coupler with the second optical input/output of the semiconductor optical amplifier. Semiconductor optical amplifier is electrically bi-directionally interconnected with the control electronics module, the input of which is connected to the output of the power supply module.

Abstract: The presented invention enables the reception of video signals with variable channel synchronization. All logic elements are located on the receiver side that can work with any transmitter. The receiver comprises one or more sets of modules for image processing. These sets of modules adapt the speed of sending data to the frame generator to the speed of data creation on the transmitter side without the use of a precise time pulse source on both sides of the transfer and without feedback from the receiver to the transmitter. The receiver further includes a memory of channel synchronization configuration which determines the allocation of synchronized channels to groups and the detector of starts of frames. These, along with multiplexers of clock signals, ensure the synchronization of channels within groups and allows for modifying this channel distribution.

Abstract: The presented invention enables the reception of video signals with variable channel synchronization. All logic elements are located on the receiver side that can work with any transmitter. The receiver comprises one or more sets of modules for image processing. These sets of modules adapt the speed of sending data to the frame generator to the speed of data creation on the transmitter side without the use of a precise time pulse source on both sides of the transfer and without feedback from the receiver to the transmitter. The receiver further includes a memory of channel synchronization configuration which determines the allocation of synchronized channels to groups and the detector of starts of frames. These, along with multiplexers of clock signals, ensure the synchronization of channels within groups and allows for modifying this channel distribution.

Abstract: Modular kit of devices for variable distribution, mixing and monitoring of optical signals in the Internet and other networks is formed by an optical module interconnected with a control electronic module of the electronic system with two redundant power supply sources, which is subsequently interconnected with the communication computer module equipped with the user communication interface and the machine communication interface. Optical module has N optical inputs and M optical outputs where N and M are non-zero natural numbers, and in total the optical module contains N×M of 2×2 type Mach-Zender interferometer optical switching elements. Each of them has two optical inputs, two optical outputs and one electric input. Optical switching elements are mutually interconnected in a grid. Control electronic module is formed by N×M pulse-width modulators connected via an interface module to the communication computer module and to the power supply distribution block.

Abstract: Modular set is formed by optical module interconnected with control module of electronic system. Optical module is formed by at least two pairs of laser diodes connected in series and including Peltier cooler and thermistor, which are connected to inputs of polarizing fiber combiners, and depolarized outputs of these polarizing fiber combiners are connected to inputs of a wavelengths combiner. Module of the electronic system is formed by a control microprocessor interconnected with direct current power supply source, with PID regulators of laser diodes temperature, a display indicating temperature of individual laser diodes and current flowing through them, and a control panel.

Abstract: Device for multicast of optical signals in the Internet and other networks is formed by an electronic part and an optical part. The electronic part consists of a control module, an interface module formed by a power supply block, a block for measuring basic operational parameters of the whole device and an interface, and by a power supply part. The power supply block of the interface module is connected to the power supply part, to the optical part and to the control module. The interface is connected to the optical part and to the control module, and the block for measuring basic operational parameters of the whole device is connected to the power supply part and to the control module. Input/output interfaces involving a standard interface for communication with a user and/or an interface for communication in an Ethernet network and/or an interface via RS 232 and/or an interface for communication via a serial USB bus are connected to the control module.

Abstract: Modular kit of devices for variable distribution, mixing and monitoring of optical signals in the Internet and other networks is formed by an optical module interconnected with a control electronic module of the electronic system with two redundant power supply sources, which is subsequently interconnected with the communication computer module equipped with the user communication interface and the machine communication interface. Optical module has N optical inputs and M optical outputs where N and M are non-zero natural numbers, and in total the optical module contains N×M of 2×2 type Mach-Zender interferometer optical switching elements. Each of them has two optical inputs, two optical outputs and one electric input. Optical switching elements are mutually interconnected in a grid. Control electronic module is formed by N×M pulse-width modulators connected via an interface module to the communication computer module and to the power supply distribution block.

Abstract: Modular set is formed by optical module interconnected with control module of electronic system. Optical module is formed by at least two pairs of laser diodes connected in series and including Peltier cooler and thermistor, which are connected to inputs of polarizing fiber combiners, and depolarized outputs of these polarizing fiber combiners are connected to inputs of a wavelengths combiner. Module of the electronic system is formed by a control microprocessor interconnected with direct current power supply source, with PID regulators of laser diodes temperature, a display indicating temperature of individual laser diodes and current flowing through them, and a control panel.

Abstract: Device for multicast of optical signals in the Internet and other networks is formed by an electronic part and an optical part. The electronic part consists of a control module, an interface module formed by a power supply block, a block for measuring basic operational parameters of the whole device and an interface, and by a power supply part. The power supply block of the interface module is connected to the power supply part, to the optical part and to the control module. The interface is connected to the optical part and to the control module, and the block for measuring basic operational parameters of the whole device is connected to the power supply part and to the control module. Input/output interfaces involving a standard interface for communication with a user and/or an interface for communication in an Ethernet network and/or an interface via RS 232 and/or an interface for communication via a serial USB bus are connected to the control module.