摘要:
A method for detecting the optimum viewing distance of three-dimensional display is provided, which includes: providing a three-dimensional display having a display screen to display at least a testing pattern thereon; providing a platform with an included angle towards the display screen at a side of the three-dimensional display, wherein the testing pattern on the display screen is suitable to be projected onto the platform; providing an image sensing element over the platform to capture the testing pattern projected on the platform for producing an image frame. The image frame includes at least a first color area and at least a second color area. The first color area partially overlaps the second color area. The non-overlapping areas of the first color area and the second color area are defined as an optimum viewing distance.
摘要:
A method for protecting memory proprietary command is provided. By using the logic block area (LBA) address in the header of the LBA mode, the device end can determine whether the data sector in the LBA mode includes a proprietary command. Also, by using the pre-defined computation function to establish a relation among the values stored in a plurality of characteristic point addresses and a specific point address so that he device end can determine whether a proprietary command is received. As the operating system will not filter out the proprietary command wrapped in this manner, the proprietary command can pass the operating system and be executed by the device end.
摘要:
The present invention provides a high-side driver circuit including a power transistor, the first transistor, the second transistor, the second capacitor, the second diode, a start-up circuit. The start-up circuit is coupled between a resistor and the second capacitor to complete a gate driving circuit. And, the aforementioned resistor can either be the gate resistance of the power transistor or an external resistor. The design of start-up circuit enables the functionality of the bootstrap capacitor of being charged to a designate voltage level. Thus, the depletion-mode transistor can be controlled to turn on/off without a floating voltage source or a negative voltage source.
摘要:
An electronic device includes a multi-field sensor, a memory, and a codec wrapper module, in which the codec wrapper module includes at least one encoder and at least one decoder. The encoder compresses raw data of an image into an image bit stream with a compression ratio through the following steps. The image is segmented into various image bands. Storage space is allocated in the memory and is segmented into various compressed band regions according to the compression ratio and a bit stream length of the raw data. A starting position of each compressed band region is recorded as a current ending position. Lines, sequentially received, are compressed into compressed bit streams respectively. The compressed bit streams are sequentially written into the corresponding compressed band regions according to field indexes of the lines, an output field order, and a group formed by the image bands corresponding to the lines.
摘要:
A compressing method is applicable to compress of an image at a fixed compression ratio, in which the image has a raw data. The compression method includes the steps of receiving the raw data with a predetermined length as a compression unit; compressing the compression unit into a compressed bit stream, wherein a total length of the compressed bit stream being not larger than a target bit stream length; when the total length of the compressed bit stream is smaller than the target bit stream length, appending a dummy code to the compressed bit stream, so that a bit stream length of the compressed bit stream with the dummy code is equal to the target bit stream length; and repeating steps until the raw data is compressed into an image bit stream.
摘要:
A drawing control method, a drawing control apparatus, and a drawing control system for embedded system are provided. The present invention adopts an independent drawing control apparatus to control a drawing unit to draw a frame, and move the drawn frame to an external frame buffer in advance, and therefore the number of lines that can be drawn is not restricted by the capacity of the memory of the drawing unit. Further, the present invention employs a counter to accumulate a counting number upon each time completion of drawing frame or moving frame. Whenever the counting number is accumulated, the drawing unit is controlled to perform a next stage of frame drawing or frame moving. In this concern, the present invention eliminates the time for external accessing, and thus achieving parallel processing, and instant displaying.
摘要:
A card reader with capability of adjusting the access interface display is provided, including a connection interface for electrically connecting to the host, a plurality of access interfaces for electrically connecting to corresponding memory cards, such as SD, CF, and a controller. When the host completes the enumeration, the controller issues a disconnect signal through the connection interface to the host to erase the original disk mappings, such as G:, F:, on the display for subsequent adjustment. For adjusting the display, the controller issues an optional reconnect signal belonging to the card reader to the host so that the host can execute the re-enumeration and adjust the displaying of the access interface available in the card reader according to the optional reconnect signal.
摘要翻译:提供了具有调整访问接口显示能力的读卡器,包括用于电连接到主机的连接接口,用于电连接到诸如SD,CF和控制器的相应存储卡的多个访问接口。 当主机完成枚举时,控制器通过与主机的连接接口发出断开信号,以清除显示屏上的原始磁盘映射,如G :, F :,进行后续调整。 为了调整显示,控制器向主机发出属于读卡器的可选重新连接信号,以便主机可以根据可选的重新连接信号执行重新枚举并调整读卡器中可用的访问接口的显示。