Abstract: A sense amplifier of a memory device that includes sense amplifier circuits and a reference sharing circuit is introduced. The sense amplifier circuits are configured to sense the plurality of bit lines according to an enable signal. The reference sharing circuit includes first switches and second switches that are coupled to the reference nodes and second reference nodes of the sense amplifier circuits, respectively. The first switches and second switches are controlled according to a control signal to control a first electrical connection among the first reference nodes, and to control a second electrical connection among the second reference nodes. An operation method of the sense amplifier and a memory device including the sense amplifier are also introduced.

Abstract: A memory includes a memory device, a reading device and a feedback device. The memory device stores a plurality of bits. The reading device includes first and second reading circuits coupled to the memory device. The second reading circuit is coupled to the first reading circuit at a first node. The first and second reading circuits cooperates with each other to generate a first voltage signal at the first node based on at least one first bit of the plurality of bits. The feedback device adjusts at least one of the first reading circuit or the second reading circuit based on the first voltage signal. The first and second reading circuits generate a second voltage signal, different from the first voltage signal, corresponding to the bits, after the at least one of the first reading circuit or the second reading circuit is adjusted by the feedback device.

Abstract: A thinning scissors includes two blade holders holding a respective cutting blade for cutting the hair, a fork member fixedly secured to one end of one blade holder for the resting of the thumb, and a finger ring revolvably coupled to one end of the other blade holder for receiving the ring finger for permitting the user to change the cutting angle conveniently.

Abstract: The present disclosure is concerned with an electrically rechargeable eyebrow tattooing machine which is particularly employed by female to do make-up on the eyebrow as a result of the lack of hair thereat. A small motor drives an eccentric cam which is further connected with a drive rod with an elongate needle detachably disposed at the front end thereof, and the motion of the eccentric cam produces a reciprocating movement on the elongate needle which is received in a casing with its pointy tip retractably sticking out of a small bore of a frontmost cap. The cap is provided with an opening on the wall so that cotton with dye liquid can be stuffed therein, and each time the needle can acquire small amount of dye liquid in its repeated motion through the dye contained cotton. The use of rechargeable source makes the operation of the present machine with less vibration and the small size facilitates the safe holding of the same in operation.