Abstract: A memory device, includes a memory array for storing a plurality of vector data each of which has an MSB vector and a LSB vector. The memory array includes a plurality of memory units each of which has a first bit and a second bit. The first bit is used to store the MSB vector of each vector data, the second bit is used to store the LSB vector of each vector data. A bit line corresponding to each vector data executes one time of bit-line-setup, and reads the MSB vector and the LSB vector of each vector data according to the bit line. The threshold voltage distribution of each memory unit is divided into N states, where N is a positive integer and N is less than 2 to the power of 2, and the effective bit number stored by each memory unit is less than 2.

Abstract: A laminated cloth includes a cloth layer having a first side and a second side opposite to the first side. A thermally insulating rubber sheet includes a first surface and a second surface opposite to the first surface. An adhesive layer is bonded between the second side of the cloth layer and the first surface of the thermally insulating rubber sheet. An active cloth includes a cloth, with tourmaline powders adhered to the cloth. The active cloth includes a first face and a second face opposite to the first face. A tourmaline powders/adhesive layer is bonded between the second surface of the thermally insulating rubber sheet and the first face of the active cloth.

Abstract: A foam rubber sheet includes a substrate made from rubber material and two cloth layers respectively bonded to two sides of the substrate. Each cloth layer has an outer surface including a plurality of recessed portions and a plurality of protruded portions. The foam rubber sheet is made from a foam rubber sheet raw material having the substrate and two second cloth layers bonded to both sides of the substrate. A pair of embossing rolls is provided for drawing the foam rubber sheet raw material to pass through the embossing rolls. Each embossing roll includes an outer surface with a pattern, the pattern being configured to form the recessed portions and the protruded portions on each second layer cloth when the foam rubber sheet raw material is passing through the embossing rolls, thereby forming the foam rubber sheet with the cloth layers having the recessed portions and the protruded portions.

Abstract: A foam rubber sheet comprises a substrate made from rubber material and two cloth layers respectively bonded to two sides of the substrate. Each cloth layer has an outer surface comprising a plurality of recessed portions and a plurality of protruded portions. The foam rubber sheet is made from a foam rubber sheet raw material having the substrate and two second cloth layers bonded to both sides of the substrate. A pair of embossing rolls is provided for drawing the foam rubber sheet raw material to pass through the embossing rolls. Each embossing roll includes an outer surface with a pattern, the pattern being configured to form the recessed portions and the protruded portions on each second layer cloth when the foam rubber sheet raw material is passing through the embossing rolls, thereby forming the foam rubber sheet with the cloth layers having the recessed portions and the protruded portions.