Abstract: An electronic projector capable of saving and displaying a user-defined logo is provided. The electronic projector receives video signals from an image source device, such as a computer, a DVD, or a television for projecting the video signals onto a screen. The video signals from the image source device are converted to digital signals and then temporarily saved in a display buffer to speed up the display rate. The user-defined logo can be designed by a graphics application program or by freezing a static image from the video signals. After converting to digital signals, the user-defined logo is then saved in a non-volatile memory. A data access controller controls the display and update of the user-defined logo. When the user-defined logo is to be updated, the new user-defined logo is saved in the non-volatile memory to overwrite the previous logo.

Abstract: The present invention relates to a method and apparatus for displaying subtitles by a multination language human-machine interface that having small memory space occupation and conveniently for program maintenance. First of all, a character database is been edited, and in accordance with the character size to edit the bitmap file for each individual character. The bitmap file is then transferred to 80c51xa assembly language and stored in the character database. Then, the “string code”, the “string combination code and position shifting code”, and the “string combination code of multination language and position shifting code” of the controlling program are established, and the content of the character database is been called. During a practical usage, the desired string is been called by the controlling program, then carried out the language judgement of the exercising nation.

Abstract: The present invention provides an image data processing system to increase the speed of on-screen display (OSD) image processing. The image data processing system comprises M color code registers for storing a plurality of color codes and a first multiplexer electrically connected to every output port of the M color code registers. The first multiplexer comprises a control port for inputting an N-bit image code, and the first multiplexer chooses one of the outputs of the M color code registers as its output according to the N-bit image code. The image data processing system comprises a processor for storing M color codes in the M color code registers and periodically transmitting a plurality of N-bit image codes to the control port of the first multiplexer so that the first multiplexer periodically chooses one of the color codes stored in the M color code registers as its output according to one of the N-bit image codes.

Abstract: A method is provided for generating a diversified-shaped image frame and fixing a keystone image frame problem. The method includes steps of repeatedly determining a specific pixel frequency of one of the plurality of image signal lines and outputting the one image signal line according to the specific pixel frequency until all of the plurality of image signal lines are outputted. A shape of the image frame is diversified by assigning diversified pixel frequencies to the plurality of image signal lines respectively.

Abstract: A digital keystone modulation circuit for transforming a digital image to a digital projection image is disclosed. The digital image and the digital projection image have n horizontal image signals and n horizontal projection image signal respectively.

Abstract: The present invention relates to a method and apparatus for displaying subtitles by a multination language human-machine interface that having small memory space occupation and conveniently for program maintenance. First of all, a character database is been edited, and in accordance with the character size to edit the bitmap file for each individual character. The bitmap file is then transferred to 80c51xa assembly language and stored in the character database. Then, the “string code”, the “string combination code and position shifting code”, and the “string combination code of multination language and position shifting code” of the controlling program are established, and the content of the character database is been called. During a practical usage, the desired string is been called by the controlling program, then carried out the language judgement of the exercising nation.

Abstract: The present invention provides an image data processing system to increase the speed of on-screen display (OSD) image processing. The image data processing system comprises M color code registers for storing a plurality of color codes and a first multiplexer electrically connected to every output port of the M color code registers. The first multiplexer comprises a control port for inputting an N-bit image code, and the first multiplexer chooses one of the outputs of the M color code registers as its output according to the N-bit image code. The image data processing system comprises a processor for storing M color codes in the M color code registers and periodically transmitting a plurality of N-bit image codes to the control port of the first multiplexer so that the first multiplexer periodically chooses one of the color codes stored in the M color code registers as its output according to one of the N-bit image codes.

Abstract: A process in displaying a video signal according to a sequence of synchronous pulses is disclosed. The process is based on the adjustment of timing of the active part of a video signal to be displayed. That is the starting point of active part of the video signal for each line-displaying is properly and immediately adjusted according to the detection if the trailing end of the previous active part of the video signal lags the synchronization pulse next to its leading end, whereby it can be achieved that the video signal is always displayed in a specified region and synchronization failure can be avoided.

Abstract: An apparatus and method for automatically recognizing the characters on a license plate which is fixed on a vehicle. A sensor/controller device is utilized to detect whether the vehicle has reached a predetermined position for image sampling, and to release a trigger signal when the vehicle has reached the predetermined position. An image processing unit is coupled to the sensor/controller device to receive the trigger signal and then to send an image-sampling instruction to an image-sampling device. The image-sampling device is coupled to the image processing unit, and samples a vehicle image including the image of the license plate in response to the image-sampling instruction. The vehicle image is converted into an electric signal by the image-sampling device, which in turn is sent back to the image processing unit.

Abstract: The present invention relates to a method and apparatus for displaying subtitles by a multination language human-machine interface that having small memory space occupation and conveniently for program maintenance. First of all, a character database is been edited, and in accordance with the character size to edit the bitmap file for each individual character. The bitmap file is then transferred to 85c51xa assembly language and stored in the character database. Then, the “string code”, the “string combination code and position shifting code”, and the “string combination code of multination language and position shifting code” of the controlling program are established, and the content of the character database is been called. During a practical usage, the desired string is been called by the controlling program, then carried out the language judgement of the exercising nation.

Abstract: The present invention provides an image data processing system to increase the speed of on-screen display (OSD) image processing. The image data processing system comprises M color code registers for storing a plurality of color codes and a first multiplexer electrically connected to every output port of the M color code registers. The first multiplexer comprises a control port for inputting an N-bit image code, and the first multiplexer chooses one of the outputs of the M color code registers as its output according to the N-bit image code. The image data processing system comprises a processor for storing M color codes in the M color code registers and periodically transmitting a plurality of N-bit image codes to the control port of the first multiplexer so that the first multiplexer periodically chooses one of the color codes stored in the M color code registers as its output according to one of the N-bit image codes.