Abstract: According to one embodiment, a memory system comprising: a semiconductor storage device including a memory cell connected to a word line and capable of storing n-bit data (n is an integer of 2 or more); and a controller circuit, wherein the semiconductor storage device determines a value of the n-bit read data stored in the memory cell, by a first reading operation using k reading voltages different from each other (k is an integer equal to or higher than 2{circumflex over (?)}(n?1) and less than 2{circumflex over (?)}n?1), and the controller circuit converts the value of the n-bit read data into data corresponding to (k+1) decimal data.

Abstract: According to one embodiment, a memory system comprising: a semiconductor storage device including a memory cell connected to a word line and capable of storing n-bit data (n is an integer of 2 or more); and a controller circuit, wherein the semiconductor storage device determines a value of the n-bit read data stored in the memory cell, by a first reading operation using k reading voltages different from each other (k is an integer equal to or higher than 2?(n?1) and less than 2?n?1), and the controller circuit converts the value of the n-bit read data into data corresponding to (k+1) decimal data.

Abstract: An automobile rearview mirror has a mirror housing having a spherical pivot and a mirror holder having a spherical cavity in which the spherical pivot is rotatably received. The mirror holder comprises a substantially flat panel and an attachment disposed on one side of the panel and defining the spherical cavity therein. The attachment has a gap defined therein radially outwardly of the spherical cavity. A mirror is supported on an opposite side of the panel. The attachment comprises a pair of semicylindrical socket members projecting from the one side of the panel. The semicylindrical socket members have respective inner arcuate walls and respective outer arcuate walls spaced radially outwardly from the inner arcuate walls, respectively. The inner arcuate walls define the spherical cavity therebetween, and the gap is defined between the inner arcuate walls and the outer arcuate walls.

Abstract: A rearview mirror assembly for an automobile includes a base adapted to be mounted on an automobile body and having a substantially vertical support shaft, a rotatable bracket mounted on the base and having a mirror and an electric motor, the rotatable bracket being angularly movable about the support shaft between a normal position and a rearwardly tilted position in response to energization of the motor, and a positioning mechanism for positioning the rotatable bracket in the normal position and the rearwardly tilted position one at a time. The positioning mechanism comprises a plurality of balls partly fitted in a plurality of recesses defined in the base and a plurality of semispherical recesses defined in the rotatable bracket. The recesses of the base have horizontal surfaces. When the rearview mirror assembly moves between the normal position and the rearwardly tilted position, the balls engage only the horizontal surfaces of the recesses of the base.