摘要:
A power supply circuit drives circuits having different numbers of series-connected LEDs without changing a circuit constant or a component. An LED series circuit is connected to a power converter circuit of a power supply circuit. The power converter circuit is controlled by a control arithmetic circuit, and supplies a constant current to the LED series circuit. A voltage detection circuit detects a voltage applied to the LED series circuit. The control arithmetic circuit checks whether the LED series circuit has 40 LEDs or 20 LEDs, based on the voltage detected by the voltage detection circuit. The control arithmetic circuit holds a constant-current value table for 40 LEDs and a constant-current value table for 20 LEDs. In accordance with the detected voltage, the control arithmetic circuit selects one constant-current value table, and controls the power converter circuit based on the constant-current value table selected.
摘要:
An integrated circuit device includes first to Nth circuit blocks (N is an integer of two or more) disposed along the long side of the integrated circuit device. One circuit block of the first to Nth circuit blocks is a logic circuit block, and another circuit block of the first to Nth circuit blocks is a programmable ROM of which at least part of data stored therein can be programmed by a user. The logic circuit block and the programmable ROM block are adjacently disposed along a first direction. At least part of information stored in the programmable ROM block is supplied to the logic circuit block.
摘要:
According to one embodiment, a video processing apparatus includes a viewer position detector, a viewing area information calculator, a control information keeping module, and a viewing area controller. The viewer position detector is configured to detect a position of a viewer using an image taken by a camera. The viewing area information calculator is configured to calculate a first control parameter so as to set a viewing area, in which a plurality of parallax images displayed on a display are viewed as a stereoscopic image, at an area depending on the position of the viewer. The control information keeping module is configured to keep one or a plurality of second control parameters for setting the viewing area at a predetermined area. The viewing area controller is configured to set the viewing area according to the first control parameter or the second control parameter.
摘要:
A communication system includes a terminal having a first storage section for storing a number of pieces of content information, a second storage section for storing a number of pieces of the content information, a storage control section for placing a content ID stored in the second storage section into purchase information for each terminal and stored in the second storage section, an access control section for controlling access to the content information corresponding to the content ID stored in the second storage section, and an accounting setting section for setting an amount of a fee to be imposed on the terminal in response to the purchase information.