Abstract: A refrigerant management system includes at least one computer including an acquisition unit and a generation unit. The acquisition unit, during installation and/or maintenance of a refrigerant use device, acquires first information, refrigerant already filled quantity, and refrigerant used quantity. The first information includes device specifying information, worker information, and refrigerant additionally filled quantity information. The refrigerant already filled quantity is preliminarily filled in the refrigerant use device, in accordance with the device specifying information. The refrigerant used quantity used in the refrigerant use device by totaling the refrigerant already filled quantity acquired and the refrigerant additionally filled quantity included in the refrigerant additionally filled quantity information.

Abstract: A projection apparatus according to the present invention, includes: a field programmable gate array (FPGA) configured to control projection; and at least one processor which functions as: a configuration unit configured to configure a circuit to be included in the FPGA to a circuit corresponding to a state of the projection apparatus.

Abstract: A projection apparatus according to the present invention, includes: a field progranmable gate array (FPGA) configured to control projection; and at least one processor which functions as: a configuration unit configured to configure a circuit to be included in the FPGA to a circuit corresponding to a state of the projection apparatus.

Abstract: A projection apparatus comprises a projection control unit which controls a projection unit to project at least one of visible light and invisible light, and a control unit which controls a projection state of the projection unit. If the state at the time of shutdown of the apparatus is a state in which the visible light is projected, the control unit controls to set the state in which the visible light is projected at a start of next activation, and if the state at the time of shutdown of the apparatus is a state in which only the invisible light is projected, the control unit controls to set a projection state including at least the visible light at the start of next activation.

Abstract: A video processing device includes a connecting unit that is connected to an external apparatus via an interface including a HPD line and a DDC line, a memory that stores EDID, with the EDID being transmitted via the DDC line; and a control unit that performs a predetermined process for resetting a state of the HPD line if a predetermined error relating to a transmission of EDID is detected. The control unit changes a state of the video processing device to a power off state if a number of times that the predetermined process is performed is not less than a predetermined value.

Abstract: A projection apparatus that provides flicker reduction according to the cause of flicker, to thereby properly reduce flicker without unnecessarily bringing about characteristic degradation is disclosed. Light for projecting a projection image onto a projection surface is output from a light source, and separated into light beams of a plurality of colors. Images corresponding to the light beams of the plurality of colors are formed on display units. The light beams of the plurality of colors having passed through the display units are synthesized and projected onto the projection surface. Fluctuations in the light quantity of the light beams of the plurality of colors having passed through the display units and yet to be input to the color synthesis unit are detected. Detection results are analyzed, and it is determined whether flicker caused by the display units or flicker caused by the light source is occurring in the projection image.

Abstract: A projection apparatus that provides flicker reduction according to the cause of flicker, to thereby properly reduce flicker without unnecessarily bringing about characteristic degradation is disclosed. Light for projecting a projection image onto a projection surface is output from a light source, and separated into light beams of a plurality of colors. Images corresponding to the light beams of the plurality of colors are formed on display units. The light beams of the plurality of colors having passed through the display units are synthesized and projected onto the projection surface. Fluctuations in the light quantity of the light beams of the plurality of colors having passed through the display units and yet to be input to the color synthesis unit are detected. Detection results are analyzed, and it is determined whether flicker caused by the display units or flicker caused by the light source is occurring in the projection image.

Abstract: To provide a video display device capable of transmitting attribute information more securely to a video output device capable of bidirectional communication. In a case in which there has been a request from the video output device for EDID attribute information, monitoring is performed to determine whether or not transmission of the EDID is completed properly (S8, S9). In a case in which EDID transmission is not completed properly, a reset process is performed in which a connect detection line is returned to a connected state after it is temporarily put into a disconnected state (S13).