Abstract: A wireless power transmission device includes a transmission device and a control device. The control device generates a driving signal to the transmission device in a first soft-start period, so as to drive the transmission device. The control device measures an energy message generated by the transmission device to generate a measurement result in a measurement period, and calculates a signal parameter according to the measurement result. The control device accordingly generates a carrier signal according to the signal parameter obtained by the measurement period in a second soft-start period. In a transmission period, the carrier signal is transmitted to the wireless power-receiving device through the transmission device. The energy message is generated by the transmission device in response to a distance between the transmission device and the wireless power-receiving device.

Abstract: A switching control circuit for use in controlling a resonant flyback power converter generates a first driving signal and a second driving signal. The first driving signal is configured to turn on the first transistor to generate a first current to magnetize a transformer and charge a resonant capacitor. The transformer and charge a resonant capacitor are connected in series. The second driving signal is configured to turn on the second transistor to generate a second current to discharge the resonant capacitor. During a power-on period of the resonant flyback power converter, the second driving signal includes a plurality of short-pulses configured to turn on the second transistor for discharging the resonant capacitor. A pulse-width of the short-pulses of the second driving signal is short to an extent that the second current does not exceed a current limit threshold.

Abstract: A resonant flyback power converter includes: a first and a second transistors which form a half-bridge circuit for switching a transformer and a resonant capacitor to generate an output voltage; a current-sense device for sensing a switching current of the half-bridge circuit to generate a current-sense signal; and a switching control circuit generating a first and a second driving signals for controlling the first and the second transistors. The turn-on of the first driving signal controls the half-bridge circuit to generate a positive current to magnetize the transformer and charge the resonant capacitor. The turn-on of the second driving signal controls the half-bridge circuit to generate a negative current to discharge the resonant capacitor. The switching control circuit turns off the first transistor when the positive current exceeds a positive-over-current threshold, and/or, turns off the second transistor when the negative current exceeds a negative-over-current threshold.

Abstract: A method and system for preliminary data processing before printing is disclosed. The steps executed by said system comprises: dividing a page into a plurality of bands including a Mth band and a (M+1)th band; converting a color format of the Mth band; transferring the Mth band to a printer for storing, and converting the color format of the (M+1)th band in the period of transferring the Mth band; and printing the Mth band, wherein the printing does not start until the printer receives 50%-100% bands. During the printing, the color format of the residual bands continues to convert and the converted residual bands continue to transfer to the printer until the page is finished printing.

Abstract: A data processing method for a color management module (CMM), applying to image processing, including dividing an object data respectively into a meta file data, a CMM profile data and a screening/half-toning table. The meta file data is processed by a firmware of a printer, while the CMM profile data and the screening/half-toning table are processed by an application specification integrated circuit in the printer, thereby shortening the total time of data processing and thus improving the printing speed.

Abstract: A system and method for processing graphic data in a printer device. A full frame is divided into a plurality of to-be-printed sub-images and a valid region is determined from each of the to-be-printed sub-images and marked. The information about the valid region and an area of the full frame is transmitted for each valid region. Sequentially, the graphic data in the valid region are determined to define a plurality of to-be-processed graphic data units when each graphic data unit is to be printed. Then, the to-be-processed graphic data units are printed. As such, speed of the printing task with respect to the graphic data may be promoted.

Abstract: A method for reducing data with limited distortion of an image formed of the data includes determining whether reduction of the data is feasible and reducing the data if reduction of the data is feasible. Determining whether reduction of the source data is feasible includes determining whether clipping has been performed. Determining whether reduction of the source data is feasible includes determining whether merging has been performed. Determining whether reduction of the source data is feasible includes determining whether a difference between the width of the source data and the height of the source data is big. Determining whether reduction of the source data is feasible includes determining whether the source data is few. Determining whether reduction of the source data is feasible includes determining whether magnification has been performed.

Abstract: A graphic processing method is implemented to determine which processing method is to be performed to improve graphic processing speed. First, it is determined whether the document page to be processed includes a large amount of graphics, in which case the document page is divided into a plurality of blocks to be sampled. First and second processing methods are then applied to the block samples to determine which processing method requires less time. The graphic processing method of shorter time duration is then implemented to process the whole document page.

Abstract: A method and system for preliminary data processing before printing is disclosed. The steps executed by said system comprises: dividing a page into a plurality of bands including a Mth band and a (M+1)th band; converting a color format of the Mth band; transferring the Mth band to a printer for storing, and converting the color format of the (M+1)th band in the period of transferring the Mth band; and printing the Mth band, wherein the printing does not start until the printer receives 50%-100% bands. During the printing, the color format of the residual bands continues to convert and the converted residual bands continue to transfer to the printer until the page is finished printing.

Abstract: A graphic processing method is implemented to determine which processing method is to be performed to improve graphic processing speed. First, it is determined whether the document page to be processed includes a large amount of graphics, in which case the document page is divided into a plurality of blocks to be sampled. First and second processing methods are then applied to the block samples to determine which processing method requires less time. The graphic processing method of shorter time duration is then implemented to process the whole document page.

Abstract: A system for dynamically adjusting printing processes along with the method thereof is disclosed. The system contains an image data conversion module for converting image data to printing data, a printing data buffer for storing the printing data, and a data transmission module for detecting the operation status of the printing device and transmitting the printing data. In particular, image data conversion is performed when the memory of the printing device is full. When the memory of the printing device is empty, the printing data is read from the printing data buffer and sent to the printing device. Therefore, the operation resources of the data processing device can be fully utilized for continuous printing.

Abstract: A method for converting a document into a full-page image using a graphical device interface (GDI) of an operating system is disclosed. The GDI provides objects of the document and coordinates of the objects in the document. The document is divided into a plurality of blocks. An address array having a plurality of address units is established to record the coordinates of the objects. Each of the address units corresponds to one of the blocks and is used to record positions of the objects in the block. The positions recorded in the address units are updated according to the coordinates of the objects provided by the GDI. A corresponding image piece for each block is generated according to the updated positions recorded in the corresponding address unit. All of the image pieces are merged into the full-page image.

Abstract: A data processing method for a color management module (CMM), applying to image processing, including dividing an object data respectively into a meta file data, a CMM profile data and a screening/half-toning table. The meta file data is processed by a firmware of a printer, while the CMM profile data and the screening/half-toning table are processed by an application specification integrated circuit in the printer, thereby shortening the total time of data processing and thus improving the printing speed.

Abstract: A digital camera for generating and sending device-dependent print data to a printer is disclosed. The digital camera has a housing with an opening at a front end for receiving incident light, a sensor installed at a rear end of the housing for detecting the incident light so as to generate raw data, a printer manager having a converter for converting the raw data into the device-dependent print data, and an I/O driver for outputting the device-dependent print data to the printer so that the printer is capable of printing the device-dependent print data automatically.

Abstract: A method of providing device-dependent print data to a printer by a computer system is disclosed. The computer system has an upper layer for controlling a graphical device interface. A printer manager is provided to decode input encoded data into the printer data without utilizing the upper layer. The printer manager has a decoder for decoding the encoded data to generate raw data and a converter for converting the raw data into the print data.

Abstract: A method for converting a document into a full-page image using a graphical device interface (GDI) of an operating system is disclosed. The GDI provides objects of the document and coordinates of the objects in the document. The document is divided into a plurality of blocks. An address array having a plurality of address units is established to record the coordinates of the objects. Each of the address units corresponds to one of the blocks and is used to record positions of the objects in the block. The positions recorded in the address units are updated according to the coordinates of the objects provided by the GDI. A corresponding image piece for each block is generated according to the updated positions recorded in the corresponding address unit. All of the image pieces are merged into the full-page image.

Abstract: A printing method includes a step of providing source data of an image, a step of providing data-compressing methods, a step of sampling the source data, a step of selecting one best from the data-compressing methods, a step of determining whether compression of the sample data by the selected data-compressing method is satisfactory, a step of compressing the source data by the selected data-compressing method if compression of the sample data by the selected data-compressing method is satisfactory, a step of determining whether reduction of the source data is feasible if compression of the sample data by the selected data-compressing method is not satisfactory, a step of reducing the source data if reduction of the source data is feasible, and a step of compressing the reduced source data by the selected data-compressing method.

Abstract: A method for reducing data with limited distortion of an image formed of the data includes a step of determining whether reduction of the data is feasible and a step of reducing the data if reduction of the data is feasible. The step of determining whether reduction of the source data is feasible includes a step of determining whether clipping has been performed. The step of determining whether reduction of the source data is feasible includes a step of determining whether merging has been performed. The step of determining whether reduction of the source data is feasible includes a step of determining whether a difference between the width of the source data and the height of the source data is big. The step of determining whether reduction of the source data is feasible includes a step of determining whether the source data are few. The step of determining whether reduction of the source data is feasible includes a step of determining whether magnification has been performed.

Abstract: A method for selecting one best from several data-compressing methods for source data including a step of sampling the source data, a step of compressing the sample data by each of the data-compressing methods, a step of calculating the total length of the sample data compressed by each of the data-compressing methods, a step of comparing the total lengths with one another other in order to determine one best from the data-compressing methods, and a step of selecting the best data-compressing method. The step of sampling the source data may include a step of determining whether the source data are plenty, a step of sampling at least two groups of at least one line if the source data are plenty, and a step of sampling only one group of at least one line if the source data are not plenty. The source data may be determined to be plenty if they include at least ten lines. The step of sampling at least two groups may include a step of sampling three groups.