Abstract:
PROBLEM TO BE SOLVED: To provide a detecting device for the midpoint voltage of a transistor half bridge circuit. SOLUTION: The half bridge circuit composed of a first transistor M1 and a second transistor M2 is driven so that the midpoint voltage undergoes transition from a low voltage value to a high voltage value and vice versa and is adapted to form a low impedance node for current signals Isink, Isource circulating in a capacitor. The detecting device is adapted to detect the current signals Isink, Isource, and has a detection means 10 which is adapted to output at least one first signal HL_comm or LH_comm indicating the transition from the low value to the high value or from the high value to the low value of the midpoint voltage according to the current signal. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To internally identify and correct a defective part in the memory device, increase service life thereof and improve manufacturing yield. SOLUTION: The memory device (20) has: a memory block (1) formed by a plurality of standard sectors (15) and a redundancy portion (2); a control circuit (3) which controls programming and erasing of the data of the memory cells; and a correctness verifying circuit (7) for the data stored in the memory cells. The correctness verifying circuit (7) is enabled by the control circuit (3) and generates an incorrect-datum signal in the event of detection of at least one non-functioning cell. The control circuit moreover activates redundancy, enables the redundancy portion (2) and stores redundancy data in a redundancy-memory stage (5b) in the presence of an incorrect datum. Various solutions are presented that implement column, row and sector redundancy, both in case of erasing and programming. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To prevent the occurrence of a current spike flowing across the storage element of a memory cell having an OTS selector during the selection of the memory cell. SOLUTION: A memory device 100 includes a plurality of memory cells 110 being arranged in a matrix 105 having a plurality of rows and a plurality of columns. Each memory cell 110 includes the storage element P and a selector S for selecting the storage element P. The memory device 100 also includes a plurality of array lines having a plurality of row lines BL each one for selecting the memory cell P of a corresponding row and a plurality of column lines WL each one for selecting the memory cell P of a corresponding column. The memory device further includes for each line among the row lines BL and/or the column lines WL a respective set of local lines LWL each one for selecting a group of memory cells P of the corresponding line, and also a respective set of selection elements each one for selecting the corresponding local line LWL in response to the selection of the respective lines. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a biaxial or triaxial gyroscope satisfactory in sensitivity. SOLUTION: An integrated microelectromechanical structure 30 includes: a die 2, having a substrate 2a and a frame 2b, defining inside it a detection region 2c and having a first side extending along a first horizontal axis x; a driving mass 3, anchored to the substrate 2a, set in the detection region 2c, and rotatable in a plane xy with an actuation movement about a vertical axis z; and first and second pairs 16a', 16b' and 16c', 16d' of sensing masses, suspended inside the driving mass 3 via elastic supporting elements 20 so as to be fixed with respect thereto and so as to perform a detection movement of rotation out of the plane xy in response to a first angular velocity; wherein the sensing masses of the first pair 16a', 16b' and the sensing masses of the second pair 16c', 16d' are aligned in respective directions, having non-zero inclinations of opposite sign with respect to the first horizontal axis x. COPYRIGHT: (C)2010,JPO&INPIT