Abstract: A setting register is provided in which parameters including a code rate, a constraint length, and a generator polynomial are changeably set according to a type of wireless communication standard, the parameters. A branch metric calculating unit generates branch metric information in an amount according to the code rate. A replica generating unit replicates, based on the generator polynomial, a specification of an encoder at a transmitting-end, and generates setting information related to selection of the branch metric information. A branch metric selection unit performs selection of an upper branch metric and a lower branch metric from among a plurality of pieces of the branch metric information, based on the setting information. An ACS unit determines a path metric for each step in a trellis diagram based on the upper branch metric and the lower branch metric, and to determine a surviving branch and a path metric value.

Abstract: A radio device from which communication is started transmits a confirmation signal to a counterpart, and if an acknowledgement signal is not returned from the counterpart, switches a communication mode to another communication mode. This operation is repeated until the acknowledgement signal is returned from the counterpart. Thus, the communication mode is matched with that of the counterpart, thereby establishing a communication link with the counterpart. A radio device caused to start communication by a second radio device receives a signal from the second radio device. The radio device switches a communication mode to another communication mode if synchronization is failed to be established. This operation is repeated until the synchronization is succeeded to be established. Thus, the communication mode is matched with that of the second radio device to be a communication counterpart, thereby establishing a link with the second radio device.

Abstract: A semi-fixed circuit has a plurality of flip flops connectable in series, a first selector and a second selector, and is capable of operations of a plurality of kinds of scrambler and the like. The first selector selects any one of an exclusive OR signal of an input signal and a first feedback signal, the first feedback signal and the input signal, and outputting the result to a first flip flop. The second selector is capable of selecting an exclusive OR signal of an output signal of a second flip flop and a second feedback signal, an output signal of the second flip flop and the second feedback signal, and outputting the result to the first selector as the first feedback signal.

Abstract: The present invention is a re-configurable circuit capable of reducing latency by selecting a route for skipping the FF of an operation unit and outputting data to a connection destination operation unit if an accumulated process time is below an operation cycle allocated to the operation unit. The operation unit comprises at least a selector, a flip-flop and an operator. In a program for generating configuration information for switching the configuration of the operation unit of the re-configurable circuit, the selector selects the use/non-use of the flip-flop, based on the configuration information and selector switching condition is reflected in the configuration information for determining whether to take a route for transferring data inputted to the selector to the operator or a route for transferring the data to the operator skipping the flip-flop.

Abstract: A radio device from which communication is started transmits a confirmation signal to a counterpart, and if an acknowledgement signal is not returned from the counterpart, switches a communication mode to another communication mode. This operation is repeated until the acknowledgement signal is returned from the counterpart. Thus, the communication mode is matched with that of the counterpart, thereby establishing a communication link with the counterpart. A radio device caused to start communication by a second radio device receives a signal from the second radio device. The radio device switches a communication mode to another communication mode if synchronization is failed to be established. This operation is repeated until the synchronization is succeeded to be established. Thus, the communication mode is matched with that of the second radio device to be a communication counterpart, thereby establishing a link with the second radio device.

Abstract: Reconfigurable units each include a hardware circuit having one part of a radio procedure function and a reconfigurable circuit having another part of the radio procedure function. An extension interface unit includes a switch circuit having a changeable connection specification to interconnect the reconfigurable units. A memory unit stores logic information for changing logics of the reconfigurable circuits and the connection specification of the switch circuit. A control unit downloads into the memory unit the logic information supplied from outside of the software defined radio. Rewriting the logics of the reconfigurable circuits according to the logic information and switching connection information of the switch circuit makes it possible to realize an optimum logic circuit in compliance with a radio communication to be used. In other words, it is possible to improve the scalability of the radio procedure function of the software defined radio.

Abstract: A setting register is provided in which parameters including a code rate, a constraint length, and a generator polynomial are changeably set according to a type of wireless communication standard, the parameters. A branch metric calculating unit generates branch metric information in an amount according to the code rate. A replica generating unit replicates, based on the generator polynomial, a specification of an encoder at a transmitting-end, and generates setting information related to selection of the branch metric information. A branch metric selection unit performs selection of an upper branch metric and a lower branch metric from among a plurality of pieces of the branch metric information, based on the setting information. An ACS unit determines a path metric for each step in a trellis diagram based on the upper branch metric and the lower branch metric, and to determine a surviving branch and a path metric value.

Abstract: A reconfigurable LSI which can actualize a plurality of functions by reconfiguration based on configuration information, comprises at least a plurality of arithmetic processing modules, has state information for indicating the transition of the function from a previous state to a next state, transition condition information for indicating the condition for transitioning from the previous state to the next state, and output information for switching the connection between the arithmetic processing module corresponding to the transition condition and the data network connected to the arithmetic processing module, and has a reconfiguration control circuit which transmits the output information corresponding to the next state to a selector for switching between the arithmetic processing module and the data network when the conditions for transition are received from the arithmetic processing module and matches the condition of the transition condition information.

Abstract: The present invention is a re-configurable circuit capable of reducing latency by selecting a route for skipping the FF of an operation unit and outputting data to a connection destination operation unit if an accumulated process time is below an operation cycle allocated to the operation unit. The operation unit comprises at least a selector, a flip-flop and an operator. In a program for generating configuration information for switching the configuration of the operation unit of the re-configurable circuit, the selector selects the use/non-use of the flip-flop, based on the configuration information and selector switching condition is reflected in the configuration information for determining whether to take a route for transferring data inputted to the selector to the operator or a route for transferring the data to the operator skipping the flip-flop.

Abstract: A semi-fixed circuit has a plurality of flip flops connectable in series, a first selector and a second selector, and is capable of operations of a plurality of kinds of scrambler and the like. The first selector selects any one of an exclusive OR signal of an input signal and a first feedback signal, the first feedback signal and the input signal, and outputting the result to a first flip flop. The second selector is capable of selecting an exclusive OR signal of an output signal of a second flip flop and a second feedback signal, an output signal of the second flip flop and the second feedback signal, and outputting the result to the first selector as the first feedback signal.

Abstract: The invention provides deodorant rayon fibers having a superior deodorization performance. The deodorant rayon fibers are produced by implanting a large quantity of fine grains produced by milling white charcoal in a matrix of the rayon fiber. After adding and mixing a water dispersion which disperses the large quantity of fine grains into viscose solutin, and then spinning, thereby the deodorant rayon fibers are produced. The fine grains obtained by milling the white charcoal do not form spheres with smooth surfaces, but their configurations are irregular with projections. As a result, even when they are implanted in the matrix of the rayon fiber, the projections tend to be exposed on the surfaces of the rayon fibers. The exposed fine grains adsorb odor gases into themselves, thereby their superior deodoization performance is performed.

Abstract: The invention provides deodorant rayon fibers having a superior deodorization performance. The deodorant rayon fibers are produced by implanting a large quantity of fine grains produced by milling white charcoal in a matrix of the rayon fiber. After adding and mixing a water dispersion which disperses the large quantity of fine grains into viscose solutin, and then spinning, thereby the deodorant rayon fibers are produced. The fine grains obtained by milling the white charcoal do not form spheres with smooth surfaces, but their configurations are irregular with projections. As a result, even when they are implanted in the matrix of the rayon fiber, the projections tend to be exposed on the surfaces of the rayon fibers. The exposed fine grains adsorb odor gases into themselves, thereby their superior deodoization performance is performed.