摘要:
A semiconductor memory device with a built-in cache memory comprises a memory cell array (1). The memory cell array (1) is divided into a plurality of blocks (B1 to B16). Each block is divided into a plurality of sub blocks each having a plurality of columns. At the time of a cache hit, block address signals (B0, B1) and a column address signal (CA) are simultaneously applied. Any of the plurality of blocks (B1 to B16) is selected in response to the block address signals (B0, B1). At the same time, any of the plurality of registers (16a) corresponding to the selected block is selected in response to the column address signal (CA). The data stored in the register (16a) is thereby read out at a high speed
摘要:
In a block access memory in which the memory cell array is divided into a plurality of blocks and data input/output is carried out by block unit, each block is divided into a plurality of subblocks, and the timing of activating the word line and the timing of activating the sense amplifier are made different for each subblock in the block in which the selected word line is included, whereby the peak current associated with the bit line charge/discharge at the time of activating the sense amplifiers is reduced.
摘要:
A DRAM for use in a simple cache memory system comprises a memory cell array divided into a plurality of blocks, a plurality of data registers provided corresponding to the respective blocks of the array for latching memory cell data of the corresponding blocks, and a selector responsive to a row address strobe signal for selecting access to either the data registers or the memory cell array. Upon cache hit, the row address strobe signal is inactivated to cause the selector to select the access to the data registers. Upon cache miss, the row address strobe signal is activated to cause the selector to select the access to the memory cell array.
摘要:
A warp-knit tape is disclosed for use in hook-and-loop fasteners, which tape comprises a pile portion and selvage portions on opposite sides thereof, the pile portion including pile-loops arranged to extend longitudinally in a meandering fashion to prevent the same from tilting down flat on the surface of the tape.
摘要:
A warp-knit support tape for hook and loop fasteners comprises a pile portion including a foundation of tricot stitches and single cord stitches and a multiplicity of pile-loops formed from chain stitches. The tricot and single cord stitches are formed of crimped yarns, and there is additionally laid in a plurality of warp members made of an elastic material to allow the tape to stretch particularly in its longitudinal direction.
摘要:
A velvet-type or snap-together fastener web comprises a warp-knitted ground structure and series of interlooped loops disposed in at least every other wale, each loop including a pair of mushroomed stems projecting from the wale at each course. To produce such a fastener web, a double-faced fabric is knitted on a Raschel warp knitting machine, and is separated into a plurality of strips by dissolving transversely spaced water-soluble threads in the fabric. Each strip is divided into front and back fabric webs by severing thermoplastic thread portions therebetween, leaving a multiplicity of raised stems on each fabric web. The raised fabrc stems are then heated to mushroom their ends.
摘要:
A wrap-knit stringer tape for slide fastener comprising a warp-knit structure including a coarse region extending longitudinally therethrough within a portion other than a coupling element-supporting marginal edge portion, said coarse region being devoid of at least one of the threads which are knit in a wale-forming stitch pattern and each interconnecting two adjacent wales.
摘要:
A slide fastener stringer includes a warp-knit stringer tape comprising a first set of yarns forming a knit ground structure containing stitch loops in every course and wale of the tape, and a second set of yarns knit in the ground structure and each extending coursewise across at least one wale, the yarns of second set comprising textured yarns. A third set of yarns forms a plurality of chains of loops knit in the ground structure and extending along wales in at least one edge portion of the tape. A fourth set of yarns is laid in the ground structure and extends in and along the wales in the tape edge portion, on which a row of coupling elements is mounted. With the stringer tape thus constructed, the tape edge portion is tight and resistant to walewise stretch and the remainder portion is relatively coarse and roughened.
摘要:
A slide fastener stringer includes a stringer tape of a warp-knit structure and a series of discrete or separate fastener elements mounted on and along one longitudinal edge of the stringer tape. The stringer tape has a reinforcing cord laid therein or inserted in an outermost groove between adjacent two wales of the tape, the cord extending warpwise and being thicker than the threads forming the tape fabric. The reinforcing cord is stitched with lock or double locked stitches at intervals spaced along the tape, thereby providing an element-anchoring bead on the tape. A pair of additional threads are preferably interlaced with the stitches and are disposed on the flat surface of the tape.
摘要:
A reinforcement is provided for reinforcing a longitudinal edge of a stringer tape for a slide fastener, which reinforcement consists of an elongate core member and a tubular member holding the former centrally in place. The tubular member is a warp-knitted fabric formed by a Raschel or tricot double-needle knitting machine, the fabric having sinker loops interconnected with corresponding needle loops and urging the latter into fastening engagement with the core member.