摘要:
A nitride semiconductor structure is provided which greatly improves ohmic characteristics by repairing process damage by regrowing an indium-containing p-type nitride semiconductor on a p-type nitride semiconductor having the process damage. In addition, a nitride semiconductor bipolar transistor is provided which can greatly improve its current gain and offset voltage. The structure includes an indium-containing p-type nitride semiconductor layer on a p-type nitride semiconductor processed by etching. The bipolar transistor, which has a base layer composed of a p-type nitride semiconductor, has an indium-containing p-type InGaN base layer regrown on a surface of a p-type InGaN base layer exposed by etching an emitter layer.
摘要:
Disclosed is an organic EL display apparatus comprising: a light emitting section; a current control section which controls a current to be flown to the light emitting section; a photoelectric converting section which generates a current upon detecting light emitted from the light emitting section; a first switching section which switches between transmission and non-transmission of the current generated; an amplifying section which performs current-voltage conversion of the current transmitted by the first switching section and amplifies it; a comparison amplifying section which performs comparison and amplification of a voltage value obtained by the amplification and a voltage value corresponding to the image signal; a second switching section which switches between transmission and non-transmission of the voltage value resulting from the comparison and amplification; and an image signal holding capacitor which is charged or discharged according to the voltage value transmitted by the second switching section.
摘要:
A nonvolatile semiconductor memory device includes a memory cell, formed in a well in a substrate and having a source, a drain, a first gate and a second gate. A word line control circuit drives a word line connected to the second gate, a program data holding circuit holds program data, a programming voltage generator circuit applies a programming voltage onto a bit line connected to the drain, and a discrimination circuit verifies the program data. Programming is conducted by applying positive voltages to the second gate and drain, while injecting hot electrons generated in a channel portion in a vicinity of the drain when 0V is applied to the well and source to increase a threshold voltage. Verification is conducted by applying a verify voltage to the second gate, while applying a positive voltage to the drain and 0V to the well and source, thereby verifying whether the positive voltage applied is maintained or comes down to 0V, depending upon the threshold voltage, by means of the discrimination circuit.
摘要:
Disclosed herewith is a method for controlling the operation of non-volatile semiconductor chips with high sequential access performance realized by smoothing out the variation of the times for writing, erasing, and reading data in/from memory cells among sectors in each of the chips.
摘要:
An image processing apparatus embeds information into image data without an overhead. The image processing apparatus includes a selection unit for selecting some of the pixels forming the image data. A changing unit embeds the information into the pixels selected by the selection unit by swapping the bits of the values of the selected pixels according to the information.
摘要:
A data processing apparatus processes input data and outputs the processed data. The data processing apparatus includes a data processing section for processing the input data by a predetermined processing method and outputting the processed data, an input-data evaluation section for evaluating the input data, an output-data evaluation section for evaluating the output data, and a real-time learning section for controlling such that the processing method is learned in real time according to the evaluation results obtained by the input-data evaluation section and the output-data evaluation section and the data processing section processes the input data according to the learned processing method, and thereby, improves the output data every moment.
摘要:
In a nonvolatile semiconductor memory device capable of the storage of multivalued data, fast writing can be realized with high reliability. In such a nonvolatile semiconductor memory device for storing multivalued information in one memory cell by setting a plurality of threshold voltages of data, writing of data having one threshold voltage that is the remotest to an erased state is performed prior to writing of the data having the other threshold voltages (write #1). Writing of the data having the other threshold voltages is then sequentially performed within groups of threshold voltages, starting from the nearer threshold voltage to the erased state within each group. When writing each of the data having the other threshold voltages, writing of the data is performed to a memory cell beginning with those groups having the remoter threshold voltages from the erased state.
摘要:
A picture reducing circuit 1 reduces a supplied original picture. A higher picture memory 2 stores an input higher picture. A predictive tap extracting circuit 3 extracts predictive taps from the higher picture stored in the higher picture memory 2 and outputs the extracted predictive taps to a mapping circuit 4, predictive coefficient generating circuit 5, and pixel value updating circuit 8. The mapping circuit 4 calculates a linear combination of predictive taps and predictive coefficients and obtains a predictive picture. The predictive picture is output to an error calculating circuit 6. The error calculating circuit 6 calculates an error (S/N ratio) between pixel value of the predictive picture and that of the original picture. A comparing and determining circuit 7 controls a non-linear processing circuit 9 corresponding to the difference of the errors. The non-linear processing circuit 9 adds or subtracts a predetermined value to/from the pixel value of each pixel of the updated higher picture corresponding to the variation amount of pixel value updated by the pixel value updating circuit 8.
摘要:
The present invention provides a nonvolatile semiconductor memory device for multilevel data storage that simultaneously carries out programming of multilevel data and subsequent verification at a high programming throughput. For this purpose, the present device includes a circuit 6 to hold programming data when programming is executed, a circuit 7 to generate timing signals to set up level-specific phases of verifying multilevel programming data during a verification period, a circuit 2 to increase stepwise the selected word line voltage during verification in accordance with the above timing signals, a circuit 4 to select target memory cells 1 for verification, depending on the data retrieved from the latch in accordance with the above timing signals, and verify whether the selected memory cells have been programmed on threshold voltage level, according to the energized or de-energized state thereof, and a circuit 5 to supply programming bias to the bit line to program data into insufficiently programmed memory cells, according to the verify results.
摘要:
A membrane formed by coating an aqueous coating liquid comprising an antistatic agent or anticlouding agent on one or both surfaces of an aliphatic polyester film comprising a specific amount of a lubricant or an antiblocking agent, can remarkably improve adhesion of the membrane (antistatic layer or anticlouding layer) to the aliphatic polyester film, and thus the effect of the membrane (antistatic effect or anticlouding effect) can be continuously exhibited for a long period.