摘要:
An adder being adapted to switch by a control signal the respective functions of one terminal issuing a carry output and the other terminal given a signal thereto as a carry input, so that the adders for a plurality of bits are used to be realizable of an adding circuit which can perform usual addition and reverse carry addition only by changing the control signal.
摘要:
A processing unit containing a DMA controller comprises a 2nb (n.gtoreq.1) processor data bus (6), a 2nb DMA data bus (7), a 2nb (m.gtoreq.1) processor address bus (8), and a 2nb DMA address bus (9). These buses have a plurality of latch circuits (51-54) respectively connected thereto. One of the processor and DMA data latched in each latch circuit, and one of the processor and DMA addresses are selected by a first multiplexer (55, 56). The 2nb data and 2mb data from the output of the first multiplexer and the outputs of the latch circuits are divided into sets of nb and mb, respectively; thus they are given in the form of 3 inputs to a second multiplixer (57-60). When the processor and the DMA controller concurrently operate, data and address are transferred without keeping one of them waiting.
摘要:
A direct memory access control device is used in a multiprocessor system having a plurality of digital data processors and an external common memory connected in common to those digital data processors through a first bus. In the case of transferring data in a direct memory access mode between processors, the transfer of data between the processors is effected by the control device through a second data bus provided in common to the plurality of digital data processors separately from the first bus. Thus, data can be transferred directly in a direct memory access mode between the processors without using the external memory and high-speed transfer can be realized. In addition, the control device comprises registers for storing the status bits of each digital data processor, such as direct memory access request and acceptance signals, corresponding to each digital data processor. Request and acceptance of direct memory access and transfer of data are effected by monitoring the contents of those registers.
摘要:
An SR latch is provided, which comprises a D-type latch and a logic circuit connected between data and sense input of the D-type latch and set and reset input terminals of the SR latch circuit. The logic circuit establishes the logic levels of signals applied to the data and sense inputs of the D-type latch such that said SR latch circit can assume one of set, reset and hold states depending on the combination of the logic levels of the signals applied to the set and reset input terminals.
摘要:
Provided is a separator for non-aqueous batteries, capable of being usefully used in non-aqueous batteries, and a non-aqueous battery equipped with this separator. The separator for non-aqueous batteries includes: a base layer comprising a fiber aggregate, and an electrolyte-swellable resin layer formed on at least one surface of the base layer, the resin layer comprising a urethane resin (C) obtained by reacting a polyol (A) including a vinyl polymer (a1) and a polyether polyol (a2) with a polyisocyanate (B). The vinyl polymer (a1) has as a main chain a vinyl polymer (a1′) having two hydroxyl groups at one of the termini of the main chain, and a polyoxyethylene chain having a number average molecular weight of 200 to 800 as a side chain, the percentage of the polyoxyethylene chain based on the vinyl polymer (a1) being within the range of 70 mass % to 98 mass %.
摘要:
Provided is a separator for alkaline batteries which can not only prevent batteries from internal short circuit by inhibiting the dendrite formation at anode, but also enables to have a low electrical resistance. The separator for alkaline batteries comprises a composite sheet in which a base layer comprising a wet-type nonwoven material formed from alkaline resistant fibers is covered with a nanofiber layer comprising a modified polyvinyl alcohol fiber which has a fiber diameter of 10 to 1000 nm and a liquid absorption amount by fibers of 4.0 to 40.0 g/g after immersion in a 35% aqueous solution of KOH.
摘要:
Provided are an alkaline battery separator and an alkaline battery including the separator. The separator includes at least a coarse layer and a dense layer denser than the coarse layer. The coarse layer contains an alkaline-resistant cellulose fiber having a freeness value of 350 to 650 ml as a whole in the proportion of 25 to 65% by weight. The alkaline-resistant cellulose fiber includes at least two kinds of alkaline-resistant cellulose fibers having different freeness with each other. The difference in freeness value between the alkaline-resistant cellulose fibers having the highest and lowest freeness values is 300 to 700 ml. The dense layer contains an alkaline-resistant cellulose fiber which as a whole has a freeness value of 0 to 400 ml. The separator has a maximum pore size of 65 μm or smaller, and a liquid absorption capacity of 5 g/g or higher.
摘要:
Laminates including a nanofiber layer and a base layer, the nanofiber layer comprising polyamide filaments formed from a polyamide (a) and having an average fiber diameter of 10 to 1000 nm, and the base layer comprising fibers at least including polyamide fibers formed from a polyamide (a), where the polyamide (a) comprises a dicarboxylic acid unit and a diamine unit and where (i) the dicarboxylic acid unit comprising a terephthalic acid unit in the proportion of not lower than 60% by mole, and (ii) the diamine unit comprising at least one diamine unit selected from the group consisting of 1,9-nonanediamine unit and 2-methyl-1,8-octanediamine unit in the proportion of not lower than 60% by mole in total are provided, as well as separators for capacitors including the laminates.
摘要:
A disclosed receiver in a MIMO multiplexing communication system, in which plural signals are simultaneously transmitted from plural transmitting antenna branches using the same frequency, and the transmitted signals are retrieved by receiving signals at plural receiving antennas, separating the received signals and searching for proper symbol metrics for each branch, comprises a QR decomposer for QR decomposing the received signals to orthogonalize the transmitted signals; a symbol replica candidate ranking unit for subtracting surviving symbol replica candidates from the QR decomposed received signals to get remaining received signals and rank the remaining signals in the increasing order of expected branch metrics of the remaining received signals; a symbol replica candidate selector for selecting symbol replica candidates in the ranked order; a branch metric calculator for calculating the branch metrics of the selected symbol replica candidates; and a threshold comparator for comparing the calculated branch metrics with a predetermined threshold; wherein if a calculated branch metric is larger than the predetermined threshold, the branch metric and successive branch metrics are deleted without further searching.
摘要:
The user apparatus is provided with a plurality of antennas, and transmits a reference signal in the uplink by switching the plurality of antennas. The plurality of antennas are associated with subframes transmitted in the uplink. The base station apparatus in a radio communication system to which transmission diversity is applied in the uplink includes: a reception level storing unit configured to store a measured reception level of the reference signal for each antenna of each user apparatus; and a scheduler configured to perform, based on the reception level of the reference signal transmitted for each antenna of each user apparatus stored in the reception level storing unit, scheduling for determining a user apparatus to be assigned to a subframe associated with the antenna.