79results about How to "Save limited space" patented technology

A ROM array is provided, comprising a plurality of columns of memory cells, wherein each column of memory cells is coupled to a shared bit line which is shared by that column of memory cells and an adjacent column of memory cells. Each column of memory cells has its own associated reference line, which is selectively coupled to a reference potential. Each reference line is coupled to the reference potential when a read operation is performed on a memory cell of the associated column of memory cells. Each reference line is decoupled from the reference potential when a read operation is performed on a memory cell of the adjacent column of memory cells. Both reference lines associated, via their columns of memory cells, to a shared bit line are decoupled from the reference potential when the shared bit line is being pre-charged prior to the read operation. The present invention thus provides a ROM array in which both leakage reduction and speed increase benefits result, whilst providing a high density design.

The invention relates to a space large-angle precise switching and locking device. A hinge seat is fixed to a slope of an angular support, a turnover screw rod penetrates a screw rod rotating shaft seat in a center manner, and a sliding spiral mechanism is formed through the turnover screw rod and a threaded sleeve fixed to a connecting shaft sleeve; a hinge seat, an upper connecting rod A, an upper connecting rod B and a supporting frame form a hinge four-rod mechanism, and the hinge seat, a lower connecting rod A, a lower connecting rod B and the supporting frame form the other hinge four-rod mechanism; the two hinge four-rod mechanisms are parallel; the turnover screw rod spirally moves to drive the upper connecting rods and the lower connecting rods to move, and the connecting rods move to drive the supporting frame to do expanding or shrinking turnover motion, so that transformation of angle positions of the device is achieved. A positioning base face of an arc-shaped locking seat is mounted on the base face of the supporting frame, the positioning base face and the supporting face rotate jointly around the axis, a locking screw slides on the circular-arc line of the arc locking seat, and locking and unlocking are achieved. The spiral mechanism and the hinge four-rod mechanisms are integrated to achieve the space angle switching function, the structure is compact, the angle range is large, and the precision is high; and after the locking device moves to be in place, a triple-locking structure is achieved, and stability is good.

The invention discloses a non-waiting crossing which does not have traffic lights and mitigates traffic jam. A horizontal overpass (3) is three-dimensionally crossed above a horizontal road (1) and a longitudinal road (2); a tetranuclear auxiliary bridge (5) is arranged between the outer areas of four angles of the horizontal overpass (2) and the longitudinal road (2), is spiral and is connected with the horizontal overpass (2) and the longitudinal road (2). Because of the three-dimensional crossing, the crossing solves the problem of running straight up and turning right; because of the tetranuclear auxiliary bridge, the crossing solves the problem of turning left; meanwhile, the crossing solves the problem of turning around when a vehicle is running; the crossing does not have traffic lights and mitigates traffic jam, is easy to be used, solves the difficulty that the traffic of the modern cities is easy to be blocked, provides great convenience for the running of motor vehicles and non-motor vehicles, and saves limited space and resources of the cities.