Abstract: A static random access memory (SRAM) cell is formed by a tunnel switched diode (TSD) and a pair of transistors. The TSD has a characteristic I-V curve exhibiting a negative differential resistance region that allows the TSD to function as a bi-stable storage device. NMOS and PMOS transistors coupled between the TSD and word and bit lines function to access the TSD for purposes of address, read and write functions of the cell. The cells can be connected in high density, high performance arrays. The TSD's are formed from layered materials that result in small cell size while allowing for high level of cell current.

Abstract: A computer wrist pad comprises a bottom seat, an outer layer, two end plates, and at least one air sac. The bottom seat is provided with an open-ended receiving space in which the air sac is disposed. The receiving space is sealed off at both ends thereof by the two end plates. The air sac is inflatable and deflatable for adjusting the hardness and the thickness of the computer wrist pad.

Abstract: A voltage clamping circuit prevents fluctuation in a cell plate biasing reference voltage applied to the commonly connected plates of cell capacitors of an array of memory storage cells of a DRAM. The voltage clamping circuit has a clamp signal terminal for receiving a clamping signal that enables the voltage clamping circuit The voltage clamping circuit further has a clamping circuit for providing additional current to the common plates of the cell capacitors of the DRAM array to maintain the plate bias voltage level at the common plates of the cell plate capacitor of the cell. The clamping circuit is has a first current sourcing circuit that is connected the plate bias voltage source for providing the additional current to the plate bias voltage source while maintaining plate bias voltage level when the voltage clamping circuit is enabled.

Abstract: A high-voltage switch circuit is disclosed, which includes at least one voltage source input terminal for providing at least one voltage source (HV1), and a passing circuit (T0) for controllably passing the voltage source. The present invention also includes a pumping circuit (202) for raising voltage level of one output terminal (C) thereof. At least one switch circuit (T6 or T7) under control of a switch signal is used so that the voltage source controllably propagates to one output terminal (OUT1, OUT2) of the switch circuit through the passing circuit. Finally, a circuit (T4) is used for forcing the output terminal of the pumping circuit and one internal node (A) of the pumping circuit to an equal potential, so that the voltage source propagates to the output terminal of the switch circuit through the forcing circuit when the output terminal of the switch circuit is coupled to a ground.

Abstract: A reference voltage generation circuit has a start-up circuit that will force the reference voltage generation circuit to assume a normal operation mode producing the desired reference voltage level and will reduce noise coupled from a power supply voltage source. The start-up circuit for reference voltage generation circuit will be disabled when a sensing circuit has determined that the reference voltage generation circuit has attained the desired reference voltage level.

Abstract: The present invention discloses a Schmitt-trigger circuit with less power consumption by reducing the amount of the required DC current. The Schmitt-trigger circuit disclosed in the present invention basically encompasses a comparison circuit, a first current cutting circuit, and a second current cutting circuit. The comparison circuit receives the input signal and then generates the output signal. Both the first and second current cutting circuits feed in the output signal, and then generate feedback signals to feed the comparison circuit for cutting the DC current path when the input signal rises or falls to predetermined trigger points. When there is only one of the first and second current cutting circuits is required, the higher or lower trigger point can be adjusted without necessary to vary the size-ratio of the PMOS and NMOS transistors.

Abstract: The present invention discloses a precharge circuit for preventing undesired output pulses caused by the current sensing circuit of the flash memory devices. The access time of the read-cycle also can be decreased after the undesired output pulses are completely removed. Basically, the circuit disclosed by the invention encompasses the current mirror and the cell array as conventionally; a control circuit, a voltage detector and a precharge circuit to remove the undesired output pulses. The control circuit couples with the current mirror, the voltage detector, and the precharge circuit. The current mirror is used to generate output waveform. The precharge circuit couples with the cell array with a bit line, and pre-charges the voltage level of the bit line to a predetermined expected value. The control circuit controls the precharge circuit to precharge the bit line when the read-cycle starts. Whole the current sensing circuit keeps disable until the voltage level of the bit line rises to an expected value.

Abstract: An instant cooling can, comprising an inner container received inside an outer container for containing beverage or foods. An instant cooling media is received inside a vacuum space between the outer container and the inner container. A ball is fastened in the neck portion of the can to seal the vacuum space. The ball is removed from its position permitting outside air to flow into the vacuum space to cause the instant cooling media to generate cooling gas for mixing with the beverage or foods contained inside the inner container so as to instantly drop the temperature of the beverage or foods.

Abstract: This invention relates to a bottom ejection type instant cooling easy-opener which can be instantly cooled down while producing a colorful gas and a whistling sound effect, wherein the easy-opener is having a circular convex (concave) seat made on the inner bottom and fixedly connected with one layer of adhesive material, a cylindrical cooler, a resilient sealing element and a metal plate; a metal injection needle having a rubber adapter connected at one end for further connection with a straw, and a whistle means set at the bottom of the circular convex (concave) seat, and wherein said metal injection needle is used to pierce through said resilient sealing element to let the instant cooling agent of the cylindrical cooler be exhausted to instantly cool down the easy-opener and to concomitantly produce a colorful gas and a whistling sound.