Abstract: A video monitoring method includes measuring a power consumption of at least a part of a display device while displaying predetermined content, comparing over time the measured values of power consumptions of at least a part of the display device with profiles of reference values over time, wherein, for each content, a respective profile of reference value has previously been set so that each content is associated with the respective profile of reference value, and determining whether the predetermined content has been displayed by the display device, based on a result of the comparison.

Abstract: One exemplary aspect of the present invention is a video monitoring method including: a measuring step of measuring at least a part of power consumption of a display device used for displaying predetermined content, or a voltage or a current used for calculating the power consumption; and a determining step of determining whether the predetermined content has been displayed by the display device, based on any of the power consumption, the voltage or the current measured in the measuring step, and reference information previously associated with the predetermined content.

Abstract: An apparatus for transferring a sheet-like article such as a wafer between a first horizontal passage defining a first plane and a second horizontal passage defining a second plane at a different level from said first plane comprising a carriage vertically movable between said first and second planes for transferring said sheet-like article between said first and second horizontal passages.

Abstract: A conveyor mechanism suitable for a thin plate, especially for uniformly drying a photoresist coated on a wafer without smearing its rear surface with the photoresist has at least four grooves formed laterally in the upper surface of a table, two of the grooves extending from one side of the table and the other two from the opposite side. A movable frame is provided with its legs located outside the sides of the table. The legs are each provided with two fingers, the inner ends of which are allowed to downwardly enter the grooves so as to mount the thin plate on the table. They are kept aside while the thin plate is treated on the table. After completion of the treatment, the fingers are swung back into the grooves and are then moved upwards, thereby lifting the thus-treated thin plate from the table. Then, the frame is caused to move so that the thin plate is carried away.