161results about How to "Avoid misreading" patented technology

A row control circuit 100 of the semiconductor memory device is provided with an oscillator 110 as a clock oscillator for generating an internal clock, a D flipflop 181 as a refresh request signal RFRQ generation circuit for generating a refresh request signal RFRQ synchronously with the internal clock and a delay circuit 182, a NAND gate 184, an AND gate 182, a D flipflop 185, a delay circuit 188, an AND gate 189 and an OR gate 190 as refresh control circuits. By using a refresh request signal RFRQ and an active signal ACT, internal refresh is performed internally in a DRAM separately from an external refresh command. To provide a semiconductor memory device and a semiconductor integrated circuit device capable of simplifying the memory control while securing the sufficient refresh function.

Disclosed is a method and an NDT / NDI calibration process that automatically detects erroneous TOF readings by providing a predetermined time acceptance window. During the calibration process, TOF readings acquired by a UT device are validated to determine whether the TOF reading for the thin test block falls within the range of the predetermined time acceptance window. If the TOF reading for the thin block (T2) falls out of the predetermined time acceptance window, the operator is alerted of an error and to repeat the TOF test for the thin block.

An apparatus and method for supporting a load-bearing platform (e.g., a seat) and measuring the weight of a load (e.g., an occupant) on the platform. The apparatus can include a base or support, a lever coupled to the support, and a sensor. The lever can be pivotally coupled to the support to allow pivotal movement of the lever with respect to the support in response to weight applied to the platform. The sensor can detect the force transmitted by the lever to determine the weight of the load on the platform. Furthermore, the lever can isolate the vertical load on the platform due to the weight of the load from other extraneous, non-vertical forces on the platform.

The invention discloses an absolute position coding and decoding method for an optical grating of an absolute position displacement sensor. The absolute position coding and decoding method comprises the following steps that the optical grating with absolute position coding is divided into N code channels, wherein the first code channel is an absolute code channel, and the other n-1 code channels are equidistant increment code channels; the absolute code channel is composed of a parity bit cross-region identification code area, a gray code area, an interval code area (with or without) and an over-interval code area (with or without); the equidistant increment code channels comprise low-order equidistant increment code channels and high-order equidistant increment code channels which areprovided with evenly spaced scribing lines; the number of the scribing lines of the low-order equidistant incremental code channels is equal to the number of gray codes; the number of the scribing lines of the high-order equidistant incremental code channels can be arranged as required; the corresponding code is "1" when light passes through or reflects from an optical grating absolute code channel coding area to a photoelectric element, and the corresponding code is "0" is when light does not pass through or reflect to the photoelectric element; and during decoding, position data read by thecode channels are integrated through FPGA chips. The absolute position coding and decoding method can ensure that the absolute position coding within any coding length range is unique.