Patent application number | Description | Published |
20090051972 | Method and Apparatus Capable of Producing FM Halftone Dots in High Speed - The present invention relates to a method and apparatus capable of generating frequency-modulation halftone dots in high speed and belongs to the field of the digital image halftone. In the prior art, read-write operation is usually carried out many times in error rows during processing each pixel so that halftone dots are generated in low speed. In the method according to the present invention, the error generated by the current pixel is buffered in a register file and the final accumulated error values are written in the error rows only after all of the relative pixels are processed. Thus, read-write operation is carried out only once in the error rows for processing each pixel. The present invention also provides an apparatus to implement the method. The apparatus comprises an error row memory, an error buffer register file, a gray generation circuit, a threshold comparison circuit, an error generation circuit, an error buffer register file control circuit, and an error row control circuit. The method and apparatus according to the present invention decrease the steps in operation and improve the speed for generating the frequency-modulation halftone dots. | 02-26-2009 |
20100115356 | METHODS AND DEVICES FOR GENERATING DOTS OF AN IMAGE BY USING TWO ERROR ROW MEMORIES - Disclosed are devices and methods for generating dots of an image by using two error row memories, which are capable of reading and writing data synchronously. A device disclosed comprises: a buffer memory A; a buffer memory B; and a memory controller. The memory controller may comprise a read-write control circuit for the buffer memory A, a read-write control circuit for the buffer memory B, and a buffer memory selection circuit. The buffer memory selection circuit is used to generate a read-write selection signal for the buffer memory A and the buffer memory B. The read-write control circuit for the buffer memory A is connected to the buffer memory A and used to implement a read operation or a write operation on the buffer memory A according to the read-write selection signal. The read-write control circuit for the buffer memory B is connected to the buffer memory B and used to implement a read operation or a write operation on the buffer memory B according to the read-write selection signal. The devices and methods are capable of implementing read and write operations on memories synchronously, which can improve the speed of error diffusion during use. | 05-06-2010 |
20100277769 | METHOD AND APPARATUS FOR GENERATING MULTI-SITE FM SCREEN DOTS SIMULTANEOUSLY - The present invention relates to a method and an apparatus for generating multi-site FM screen dots simultaneously. The method according to the present invention can simultaneously process multiple neighboring pixels in the same row each time and generate multi-site screen dots; and meanwhile the method according to the present invention can renew simultaneously the error accumulation values of multiple locations of error row memory. The apparatus according to the present invention consists of an error row memory, an error row memory control circuit, an error allocation/accumulation register file, an error allocation/accumulation register file control circuit, and a screen dots generating circuit. The method and the apparatus according to the present invention can greatly improve the generating speed of FM screen dots, and only one read-write operation of the error row memory is needed during processing the multiple neighboring pixels each time. | 11-04-2010 |
20110084739 | Methods and Devices for Generating Trapezoidal Fire Pulses - The present application discloses trapezoidal fire pulse generating methods and devices. According to the devices and methods of the present application, the voltage value of the positive DC control voltage signal, the voltage value of the negative DC control voltage signal, the voltage value of the rise-time DC control voltage signal and a fall-time DC control voltage signal can be determined according to the parameter values of a trapezoidal fire pulse required to be output. Thus, corresponding DC control voltage signals can be generated. Further, the positive DC control voltage signal and the negative DC control voltage signal can be modulated to a square-wave pulse. Then, the rise-time DC control voltage signal, the fall-time DC control voltage signal and the square-wave pulse can be input to a inverse integrator so as to generate a trapezoidal fire pulse. Since there are specific quantitative relations between the rise time and fall time of the trapezoidal fire pulse and the voltage values of the rise-time and fall-time DC control voltage signals, the corresponding rise time and fall time of the trapezoidal fire pulses can be accurately controlled and adjusted so that the output trapezoidal fire pulses can be more stable and accurate. | 04-14-2011 |
20110164082 | Pulse Width Control Device and Method, Inkjet Printing Device Using the Device - Disclosed is a pulse width control device, including: a first monostable multivibrator, for receiving a synchronization pulse, and generating a negative pulse whose width is a first preset threshold; a second monostable multivibrator, for receiving the synchronization pulse, and generating a positive pulse whose width is a second preset threshold; an inverter, for receiving the synchronization pulse, and inverting the synchronization pulse, and outputting an inverted synchronization pulse; and a flip-flop, for receiving the negative pulse, the positive pulse and the inverted synchronization pulse, and generating a synchronization pulse with a width between the first threshold and the second threshold. | 07-07-2011 |
20110201316 | METHOD FOR SETTING COLORING RING BACK TONE - The invention relates to a method for setting a CRBT, including: initiating a call to a called terminal and receiving a CRBT sent from a CBC, by a calling terminal in a communication network; during the process of playing the CRBT or the communication process or after the call is ended, authenticating the calling terminal by the communication network in response to a CRBT setting request message sent by the calling terminal or the called terminal actively or upon an inquiry, so as to judge whether the calling terminal activated a CRBT service; if it is judged that the calling terminal has not activated a CRBT service, sending, by the communication network, a CRBT service activation message to the calling terminal to instruct the calling terminal to subscribe the CRBT service, and then subscribing, by the calling terminal, the CRBT service through a response to the message; and if it is judged the calling terminal already activated the CRBT service, or the CRBT service is activated by the calling terminal responding to the CRBT service activation message, instructing, by the communication network, the CBC to set a CRBT same as or similar to or associated with the CRBT received by the calling terminal into a CRBT library for the calling terminal. | 08-18-2011 |
20110202178 | VIDEO-BASED SYSTEM AND METHOD OF ELEVATOR DOOR DETECTION - A video-based system detects the position of elevator doors based on video data provided by one or more video detectors. Based on the detected position of the elevator doors, a distance between the elevator doors can be determined. The operation of the elevator doors is controlled based, at least in part, on the detected distance between the elevator doors. | 08-18-2011 |
20120310709 | COMPUTER-IMPLEMENTED METHOD AND APPARATUS FOR INTEGRATING HETEROGENEOUS BUSINESS PROCESSES - A computer-implemented method and apparatus for integrating heterogeneous business processes. In one embodiment, there is provided a computer-implemented method for integrating heterogeneous business processes, the method comprising: reading first process information of a first business process; obtaining from a unified process view second process information of a second business process; and integrating at least one part of the first process information and at least one part of the second process information into a third business process; wherein the first business process and the second business process are heterogeneous business processes. In another embodiment, there is provided a computer-implemented apparatus for integrating heterogeneous business processes. | 12-06-2012 |
20120316927 | COMPUTER-IMPLEMENTED METHOD AND APPARATUS FOR INTEGRATING HETEROGENEOUS BUSINESS PROCESSES - A computer-implemented method and apparatus for integrating heterogeneous business processes. In one embodiment, there is provided a computer-implemented method for integrating heterogeneous business processes, the method comprising: reading first process information of a first business process; obtaining from a unified process view second process information of a second business process; and integrating at least one part of the first process information and at least one part of the second process information into a third business process; wherein the first business process and the second business process are heterogeneous business processes. In another embodiment, there is provided a computer-implemented apparatus for integrating heterogeneous business processes. | 12-13-2012 |
20130345852 | LINEAR RECIPROCATING DEVICE AND ITS POSITIONING CONTROL METHOD - A linear reciprocating device and a location controlling method utilizing the device are provided. The linear reciprocating device comprises a machine base, a linear guide ( | 12-26-2013 |
20140002532 | Method and System for Controlling Multicolor Ink-Jet Printing on Intermittent Rotary Printing Device | 01-02-2014 |
20140111572 | Inkjet Printing Positioning Device and Control Method Thereof - This invention provides an inkjet printing positioning device and control method thereof. The inkjet printing positioning device comprises: base; linear guide rail fixedly mounted on the base; inkjet unit, moving in matched manner with the linear guide rail; ball screw, driving the inkjet unit to move linearly when being rotated; servomotor, for driving the ball screw to rotate; a zero position detecting device, mounted in a position on the moving travel route of the inkjet unit from the initial position to the printing area, and for sending zero position signal when detects that the inkjet unit is passing by; controller connecting the zero position detecting device and the servomotor, and for controlling the servomotor to drive the inkjet unit to move from the current position to the printing area and locate there, and controlling the servomotor to drive the inkjet unit to move predetermined displacement upon receipt of zero position signal. | 04-24-2014 |
20140122415 | GENERATION OF CUBE METADATA AND QUERY STATEMENT BASED ON AN ENHANCED STAR SCHEMA - A method for generating cube metadata based on an enhanced star schema includes extracting dimension references from a factless fact table in an enhanced star schema comprising a fact table, a plurality of dimension tables of the fact table and the factless fact table; constructing a hierarchy reference based on the dimension references; and generating cube metadata by combining the hierarchy reference with measures obtained from the fact table and a hierarchy obtained from the dimension tables in the enhanced star schema. | 05-01-2014 |
20140307289 | DIGITAL PRINTING SYNCHRONOUS CONTROL DEVICE AND CONTROL METHOD THEREOF - The present invention provides a digital inkjet printing synchronous control device, which comprises: a storage unit, for storing data of various colored surfaces; a control unit, for controlling an interactive processing unit to perform data receiving, storage and sending as well as generation of a printing trigger signal; and the interactive processing unit, under the control of the control unit, for receiving from a front-end system of a digital inkjet printing apparatus the data of the colored surfaces, storing the received data into the storage unit, sending the stored data to a back-end system of the digital inkjet printing apparatus, generating, according to a signal from a peripheral encoder and/or color code sensor of the digital inkjet printing apparatus, printing trigger signals of the colored surfaces, and sending the printing trigger signals to the back-end system of the digital inkjet printing apparatus. Correspondingly, the present invention provides a digital inkjet printing synchronous control method. Therefore, continuous printing of pages having different sizes and multiple colored surfaces can be implemented. | 10-16-2014 |
20140313249 | METHOD AND APPARATUS FOR CONTROLLING MULTICOLOR OVERPRINT OF INTERMITTENT PRINT DEVICE - Disclosed are a multicolour overprint control method and device applicable to an intermittent printing apparatus. According to the operating characteristic of the intermittent printing apparatus, the method solves the problems of overlap and inaccurate overprint of various colours during intermittent printing by controlling the relationship between the distance between adjacent colour group modules of different colours and the motion distance between uniform segments of the intermittent printing apparatus. In addition, the method also sets different inkjet printing modes in accordance with whether the detected inkjet printing of the same colour group module is in a first period, thereby solving the problems of printing media waste and discontinuous printing data. The method achieves multicolour digital inkjet printing by combining the unique motion mode of the printing media thereof, and makes printing contents flexible and changeable on the basis of guaranteeing printing efficiency. | 10-23-2014 |