Mitsubishi Electric

About: Mitsubishi Electric is a company organization based out in Ratingen, Germany. It is known for research contribution in the topics: Signal & Voltage. The organization has 23024 authors who have published 27591 publications receiving 255671 citations. The organization is also known as: Mitsubishi Electric Corporation & Mitsubishi Denki K.K..

Gate drive apparatus

Abstract: A gate drive apparatus including a constant-current-pulse gate drive circuit which creates a gate signal for a switching device as a constant-current output, a constant-voltage-pulse gate drive circuit which creates the gate signal as a constant-voltage output, and a decision/switch circuit which switches the operation of the constant-current-pulse gate drive circuit and the operation of the constant-voltage-pulse gate drive circuit. The variance of switching speeds attributed to the variances of threshold voltages and mirror voltages in a plurality of switching devices which are driven by the gate drive apparatus can be suppressed, and the variance of losses can be minimized.

Display device and method for manufacturing same

Abstract: Disclosed is a display device having improved display quality, reliability and the like, wherein the concentration of a stress in a curved display panel is suppressed. Specifically disclosed is a display device (50) which comprises a display panel (52), an adhesive layer (308) and a supporting substrate (302). The adhesive layer (308) is provided on the display panel (52). The supporting substrate (302) is configured of a member that is provided with a curved surface (304) in advance. The display panel (52) is bonded to the curved surface (304) of the supporting substrate (302) by the adhesive layer (308). The supporting substrate (302) supports the display panel (52) in such a manner that the display panel (52) has a curved shape along the curved surface (304).

System for sending small positive data notification messages over a network to indicate that a recipient node should obtain a particular version of a particular data item

Abstract: A system is provided for eliminating time-consuming, unnecessary transfersf data over networks such as the the World Wide Web while at the same time guaranteeing timeliness of the data used by recipients. Timeliness is assured by immediately sending small data-notification messages whenever data becomes relevant or changes. Efficiency is guaranteed by transmitting the data itself only when requested by the recipient of a data-notification message. In particular, recipients are alerted to the presence of, and changes in, data they might use by data-notification messages containing a timestamp, the data location, and a checksum. Based on the timestamp, the recipient can determine whether the data-notification message contains timely information or should be ignored. Based on the data location and checksum, the recipient can determine whether it already has the current version of the data in question, for example stored in a cache.

Descriptor for spatial distribution of motion activity in compressed video

Abstract: A method describes motion activity in a video sequence. A motion activity matrix is determined for the video sequence. A threshold for the motion activity matrix is determined. Connected regions of motion vectors at least equal to the threshold are identified and measured for size. A histogram of the distribution of the sizes of the connected areas is constructed for the entire video sequence. The histogram is normalized to characterize the spatial distribution of the video sequence in a motion activity descriptor.