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1. 发明授权

US6153955A Implementing comprehensive PID engine with single bit adder 有权
标题翻译：用单位加法器实现综合PID引擎
公开(公告)号：US6153955A
公开(公告)日：2000-11-28
申请号：US283175
申请日：1999-04-01
申请人： Chong-Hing Cheung , Hua Peng
发明人： Chong-Hing Cheung , Hua Peng
IPC分类号： G06K15/00 , H02K41/00
CPC分类号： G06K15/00 , G06K2215/0002
摘要： A digital image printer that performs certain digital image processing functions using parallel integrated circuitry and other functions using serial integrated circuitry in an effort to minimize integrated circuit real estate. The serial integrated circuitry is allocated to certain functions within digital image printing system that perform various mechanical operations. The inherent mechanical time constant of these mechanical operations, when compared to electrical digital image processing operations performed using modern integrated circuitry, is relatively long. In other words, the mechanical operations are performed in a relatively longer time than is made possible using modern integrated circuitry and processors employed within digital image printing systems. The present invention dedicates certain of the functions used to perform digital image processing to be performed using slower, serial integrated circuitry. While this serial digital image processing is slow when compared to parallel digital image processing, there are advantages in the particular context of digital image printing systems, in that, serial processing integrated circuitry takes up significantly less space on an integrated circuit. Also, serial processing integrated circuitry is very easily scaleable to accommodate any variety of digital image printing systems having various mechanical and electrical characteristics. A very small size integrated circuit is achieved by dedicating serial processing integrated circuitry to a certain number of the total functions that must be performed in the digital image printer. Significant cost savings are also achieved given the greatly reduced size of the integrated circuit.
摘要翻译：一种数字图像打印机，其使用并行集成电路和使用串行集成电路的其他功能来执行某些数字图像处理功能，以尽量减少集成电路的不动产。串行集成电路被分配给执行各种机械操作的数字图像打印系统内的某些功能。与使用现代集成电路执行的电数字图像处理操作相比，这些机械操作的固有机械时间常数相对较长。换句话说，机械操作在比使用数字图像打印系统中使用的现代集成电路和处理器所实现的时间更长的时间内执行。本发明专注于使用较慢的串行集成电路来执行用于执行数字图像处理的某些功能。虽然与并行数字图像处理相比，该串行数字图像处理较慢，但是在数字图像打印系统的特定上下文中存在优点，因为串行处理集成电路在集成电路上占用明显更少的空间。此外，串行处理集成电路非常容易地扩展，以适应具有各种机械和电气特性的任何种类的数字图像打印系统。通过将串行处理集成电路专用于必须在数字图像打印机中执行的一定数量的总功能来实现非常小尺寸的集成电路。鉴于集成电路的尺寸大大减小，也可以节省大量成本。

2. 发明授权

US06449057B1 Image data addressing for bit rotation block within digital image processors 有权
公开(公告)号：US06449057B1
公开(公告)日：2002-09-10
申请号：US09282949
申请日：1999-04-01
申请人： Danjie Pan , Chong-Hing Cheung
发明人： Danjie Pan , Chong-Hing Cheung
IPC分类号： G06H1500
CPC分类号： G06K15/102 , G06K15/1814
摘要： An image data addressing system for a digital image printer operates on a plurality of image data having a horizontal format. Ink jet type digital printers require the alignment of the image data in a horizontal fashion to accommodate the vertical, mechanical arrangement of the ink jet nozzles. A program adapted to the specific components, circuitry and other characteristics of the digital image printer performs data addressing on the image data for preparation for ink jet firing by the ink jet nozzles. A common, integrated memory is used to perform the image data processing of the plurality of image data. The digital image printer adaptable program governs the storing of the image data so that it is adaptable to the specific components, circuitry and other characteristics of the digital image printer. An unused, consecutive portion of the integrated memory is provided at certain times during the image data processing. In certain embodiments of the invention, the image data addressing system is contained within a multi-functional peripheral. The multi-functional peripheral device is a peripheral device containing several internal devices that operate either independently or cooperatively to perform image data processing. Alternatively, the image data addressing system is found in a stand alone device that performs primarily one single function, namely, image data addressing. Highly computationally intensive functions use the unused, consecutive portion of the integrated memory. One particular function that is highly computationally intensive is motor control within an ink jet digital image printer.

3. 发明授权

US06636328B1 Flexible array image data processing for ink jet nozzle data control in digital image printing systems 有权
标题翻译：用于数字图像打印系统中喷墨喷嘴数据控制的灵活阵列图像数据处理
公开(公告)号：US06636328B1
公开(公告)日：2003-10-21
申请号：US09283876
申请日：1999-04-01
申请人： Danjie Pan , Chong-Hing Cheung
发明人： Danjie Pan , Chong-Hing Cheung
IPC分类号： G06F1500
CPC分类号： H04N1/40031
摘要： A printer that uses a number of control state machines to reconfigure logic array circuitry to perform image data processing in preparation for printing. The logic array circuitry is programmable and adaptable to accommodate a wide variety of printer components characteristic to digital image printing systems. The logic array circuitry is reconfigured, depending on the particular printer in which the invention is implemented, by the control state machines as they receive control state machine conditions corresponding to the printer components characteristic to that specific digital image printer. For example, the physical, mechanical, and electrical characteristics of the printer constitute the printer component that modify the control state machine conditions which in turn govern the configuration of the logic array circuitry through the control state machines. Examples of printer components used to determine the control state machine conditions include, among other things, the number of ink jet printer nozzles, the ink jet nozzle separation, the firing order of the ink jet nozzles, and other characteristics of the digital image printer including electrical processing circuitry characteristics of the digital image printer. Selected portions of the logic array of the printer is used to perform a variety of image data processing functions including, among other things, nozzle data shifting, nozzle data masking, nozzle dot counting, nozzle data mapping, and nozzle columns separation. Certain of these functions are performed using serial image data processing.
摘要翻译：一种使用多个控制状态机重新配置逻辑阵列电路以执行图像数据处理以准备打印的打印机。逻辑阵列电路是可编程的并且可适应于适应数字图像打印系统特有的各种打印机组件。当控制状态机接收与特定数字图像打印机的特征的打印机组件相对应的控制状态机条件时，根据实现本发明的特定打印机重新配置逻辑阵列电路。例如，打印机的物理，机械和电气特征构成了打印机组件，其修改控制状态机状态，而这些条件又通过控制状态机来控制逻辑阵列电路的配置。用于确定控制状态机器条件的打印机部件的示例包括喷墨打印机喷嘴的数量，喷墨喷嘴分离，喷墨喷嘴的点火顺序以及数字图像打印机的其它特性，包括数字图像打印机的电子处理电路特性。打印机的逻辑阵列的选定部分用于执行各种图像数据处理功能，其中包括喷嘴数据移位，喷嘴数据屏蔽，喷嘴点计数，喷嘴数据映射和喷嘴柱分离。这些功能中的某些是使用串行图像数据处理来执行的。

4. 发明授权

US06456389B1 Integrated bit rotation and row alignment within digital image printing systems 有权
公开(公告)号：US06456389B1
公开(公告)日：2002-09-24
申请号：US09282956
申请日：1999-04-01
申请人： Danjie Pan , Chong-Hing Cheung
发明人： Danjie Pan , Chong-Hing Cheung
IPC分类号： G06K1500
CPC分类号： G06K15/10 , G06K15/02
摘要： A digital image printer that performs bit rotation and row alignment in preparation for final image reproduction. The present invention combines the two digital image data processing functions of bit rotation and row alignment into a single functional step. The two functions are performed simultaneously, in that, while row alignment is being performed during the deposition of a portion of the digital image data into a certain portion of a group of memory buffers, bit rotation is performed by extracting another portion of the digital image data from another portion of a group of memory buffers. The present invention reduces the number of required digital image data memory buffers required to perform the two functions of bit rotation and row alignment from conventional systems that perform the two functions sequentially and utilize a direct memory access channel to perform the data transfer between integrated circuitry that performs the two functions. The present invention presents a design that is inherently scaleable to accommodate any variety of digital image printing systems having various mechanical and electrical characteristics. The present invention does not require any digital image data preprocessing by a host before receiving the digital image data in preparation for digital image reproduction.

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