Abstract: A projection system includes first and second light sources which are disposed at an angle with respect to each other and are activated during respective different phases of an illumination cycle to illuminate a spot on different sides of a segmented rotary filter wheel. The filter wheel is alternately used to transmit light from one of the light sources, and to reflect light from the other light source, to a light valve, the output of which is projected onto a screen. The wheel segments may be alternately clear and mirrored or may alternately transmit and reflect colors to produce color sequential illumination of the light valve. In addition to filter wheels producing sequences of red, blue, green illumination, including the possibility of splitting a color phase into non-adjacent smaller phases to reduce color artifacts, a simple filter wheel which in two rotations produces a sequence of red, blue, green, cyan, magenta, yellow color illumination, resulting in an expanded color gamut, is also disclosed.

Abstract: Upon a reception of a request for connection from a terminal unit, a server sends a start menu screen for video selection. A video selection range is narrowed by changing menu screens. When a certain menu screen is reached, a history table is accessed to read frequencies of use of a plurality of corresponding videos. Heading parts of frequently used videos are sent to the terminal unit, where they are stored in a terminal memory. With a final selection of a video, its heading part is read from the terminal memory, to be reproduced. A desired video quickly starts. The remaining part of the video is sent from the server.

Abstract: A video signal outputting apparatus includes an A/D converter, and video signals Y1-1 and Y3-1 outputted from the A/D converter are written into areas C1 and C3 of a VRAM, and therefore, images according to the video signals are displayed on a monitor. Then, video signals Y1-2 and Y3-2 are outputted from the A/D converter, and written into an area C5 of a further VRAM and the area C1 of the VRAM, respectively. Images according to the video signals Y1-2 and Y3-1 are displayed on the monitor at a timing that writing of the video signal Y1-2 is finished, and images according to the video signals Y1-2 and Y3-2 are displayed at a timing that writing of the video signal Y3-2 is finished.