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1. 发明授权

US06181438B2 Method and apparatus for digital image darkness control using quantized fractional pixels 失效
$Method and apparatus for digital image darkness control using quantized fractional pixels$
标题翻译：使用量化分数像素的数字图像暗度控制的方法和装置
公开(公告)号：US06181438B2
公开(公告)日：2001-01-30
申请号：US09072122
申请日：1998-05-04
申请人： Rosario A. Bracco , Michael Branciforte , David C. Robinson , James O. Mitchel , Thomas Robson , Robert P. Loce , Hoan N. Nguyen , Hung M. Pham , Daniel D. Truong , Louis D. Mailloux , Cathleen J. Raker , Sue K. Lam , Robert R. Thompson, Jr. , Farhad D. Rostamian , Cheryl A. Pence
发明人： Rosario A. Bracco , Michael Branciforte , David C. Robinson , James O. Mitchel , Thomas Robson , Robert P. Loce , Hoan N. Nguyen , Hung M. Pham , Daniel D. Truong , Louis D. Mailloux , Cathleen J. Raker , Sue K. Lam , Robert R. Thompson, Jr. , Farhad D. Rostamian , Cheryl A. Pence
IPC分类号： H04N1407
CPC分类号： H04N1/40093 , G06K2215/0071 , G06T5/008 , G06T5/20 , G06T2200/28 , G06T2207/10008 , G06T2207/30176 , H04N1/407
摘要： A method and apparatus for the control of darkness/lightness in a digital image rendered by a printing system. The technique preferably employs templates to selectively apply different amounts of darkening (lightening) to borders of structures detected within the image dependent upon the need for darkening (lightening).
摘要翻译：一种用于控制由打印系统呈现的数字图像中的黑暗度的方法和装置。该技术优选地使用模板来根据需要变暗（减轻）来选择性地对图像中检测到的结构的边界施加不同量的变暗（发光）。

2. 发明授权

US5802215A Quadrant-based density detection for lead edge lightening 失效
标题翻译：基于象限的铅边亮度检测
公开(公告)号：US5802215A
公开(公告)日：1998-09-01
申请号：US767893
申请日：1996-12-17
申请人： Rosario A. Bracco , George L. Harer , Sue K. Lam , Louis D. Mailloux , Hoan N. Nguyen , Cheryl A. Pence , Hung M. Pham , Cathleen J. Raker , Farhad D. Rostamian , Robert R. Thompson, Jr. , Daniel D. Truong
发明人： Rosario A. Bracco , George L. Harer , Sue K. Lam , Louis D. Mailloux , Hoan N. Nguyen , Cheryl A. Pence , Hung M. Pham , Cathleen J. Raker , Farhad D. Rostamian , Robert R. Thompson, Jr. , Daniel D. Truong
IPC分类号： G03G15/047 , H04N1/403 , G06K9/44 , G03G15/00 , G03G21/00 , H04N1/387
CPC分类号： H04N1/403 , G03G15/047
摘要： A lead edge lightening circuit which will lighten a scan line based on a seven by seven pixel area surrounding the current pixel. The area is divided into four sub-areas, each of four by four pixels, and each having the current pixel at one corner. Each sub-area is summed and compared to a threshold number. If the threshold number is equalled or exceeded by at least one of the four sums, an overlay bit, which can be white or black, is output. The current pixel is replaced by a white pixel if a white pixel has been output, otherwise the current pixel remains unchanged.
摘要翻译：一个引线边缘发光电路，其将基于当前像素周围的七乘七像素区域来减轻扫描线。该区域被分成四个子区域，每个子区域分别是四个像素，并且每个子区域在一个角上具有当前像素。将每个子区域相加并与阈值进行比较。如果阈值数目等于或超过四个和中的至少一个，则输出可以是白色或黑色的覆盖位。如果输出了白色像素，则当前像素被白色像素代替，否则当前像素保持不变。

3. 发明授权

US6129457A Resolution enhancement for a digital printing apparatus 失效
标题翻译：数字打印设备的分辨率增强
公开(公告)号：US6129457A
公开(公告)日：2000-10-10
申请号：US886507
申请日：1997-07-01
申请人： Robert R. Thompson, Jr. , Farhad D. Rostamian , Louis D. Mailloux , Cheryl A. Pence , Rosario A. Bracco , Cathleen J. Raker , Sue K. Lam , George L. Harer , Hung M. Pham , Daniel D. Truong
发明人： Robert R. Thompson, Jr. , Farhad D. Rostamian , Louis D. Mailloux , Cheryl A. Pence , Rosario A. Bracco , Cathleen J. Raker , Sue K. Lam , George L. Harer , Hung M. Pham , Daniel D. Truong
IPC分类号： G06K15/02 , G06T3/40 , H04N1/40 , B41B7/08
CPC分类号： H04N1/40068 , G06K15/02 , G06K15/1874 , G06T3/40 , G06K2215/006
摘要： A system for providing an output from a digital printing apparatus which is of higher resolution than the native resolution of the original image data. For a given center pixel area, image data corresponding to pixel areas generally neighboring the center pixel area are attempted to be matched to various templates which are consistent with curved lines in which resolution enhancement of the center pixel would be desirable. In a second stage of template matching, a second set of image data, corresponding to pixel areas further away from the center pixel than the first set of pixel areas, is also attempted to be matched to templates. The second stage of template matching helps to avoid resolution enhancement of image data which is related to a halftone image.
摘要翻译：一种用于从数字打印装置提供比原始图像数据的原始分辨率高的分辨率的输出的系统。对于给定的中心像素区域，尝试与通常与中心像素区域相邻的像素区域对应的图像数据与与其中希望的中心像素的分辨率增强的曲线一致的各种模板匹配。在模板匹配的第二阶段中，也尝试与模板匹配的第二组图像数据对应于比第一组像素区域更远离中心像素的像素区域。模板匹配的第二阶段有助于避免与半色调图像相关的图像数据的分辨率增强。

4. 发明授权

US06526240B1 Versatile system for creating test images in a digital printing apparatus 有权
标题翻译：用于在数字打印设备中创建测试图像的通用系统
公开(公告)号：US06526240B1
公开(公告)日：2003-02-25
申请号：US09941207
申请日：2001-08-28
申请人： Michael J. Thomas , Joseph W. Ward , Hung M. Pham , Daniel D. Truong
发明人： Michael J. Thomas , Joseph W. Ward , Hung M. Pham , Daniel D. Truong
IPC分类号： G03G1500
CPC分类号： B41J29/393 , G03G15/5041 , G03G2215/00042 , G03G2215/00067 , H04N1/00002 , H04N1/00015 , H04N1/00031 , H04N1/00045 , H04N1/00063 , H04N1/40 , H04N2201/0098
摘要： In a digital printing apparatus, such as a xerographic or ink-jet printer, test marks, such as halftone patches or fiducial marks for image registration, are generated on demand. Coordinates of a desired location of the test mark within an imageable area (such as on a print sheet or on a photoreceptor), as well as a selection of the desired type of test mark, are entered through a user interface. Also entered is data about conditions under which image-quality tests using the test marks are to be performed. Information about the test mark and test conditions is retained as a small number of scalar values. The system enables test methods for a machine to be changed easily, and a basic set of system software can be readily applied to different types of printing hardware.
摘要翻译：在诸如静电印刷或喷墨打印机的数字打印设备中，根据需要生成诸如用于图像配准的半色调贴片或基准标记的测试标记。通过用户界面输入测试标记在可成像区域（例如在印张或感光体上）的所需位置的坐标以及期望类型的测试标记的选择。还输入有关使用测试标记进行图像质量测试的条件的数据。关于测试标记和测试条件的信息被保留为少量的标量值。该系统使机器的测试方法变得容易，而且可以将一套基本的系统软件应用于不同类型的打印硬件。

5. 发明授权

US10024321B2 Diagnostic system 有权
公开(公告)号：US10024321B2
公开(公告)日：2018-07-17
申请号：US12781044
申请日：2010-05-17
申请人： Hung M. Pham , Nagaraj Jayanth
发明人： Hung M. Pham , Nagaraj Jayanth
IPC分类号： G06N5/02 , G06F1/26 , F04C28/28 , F04B49/06 , F04B51/00 , F04C18/02 , F04C23/00
摘要： A compressor is provided and may include a shell, a compression mechanism, a motor, and a diagnostic system that determines a system condition. The diagnostic system may include a processor and a memory and may predict a severity level of the system condition based on at least one of a sequence of historical-fault events and a combination of the types of the historical-fault events.

6. 发明授权

US08393169B2 Refrigeration monitoring system and method 有权
标题翻译：制冷监测系统及方法
公开(公告)号：US08393169B2
公开(公告)日：2013-03-12
申请号：US12054011
申请日：2008-03-24
申请人： Hung M. Pham
发明人： Hung M. Pham
IPC分类号： F25B49/02
CPC分类号： F25B49/02 , F25B39/04 , F25B45/00 , F25B49/005 , F25B2700/04 , F25B2700/151 , F25B2700/2116 , F25B2700/21163
摘要： A system is provided and may include a compressor having a motor and a refrigeration circuit including an evaporator and a condenser fluidly coupled to the compressor. The system may further include a first sensor producing a signal indicative of one of current and power drawn by the motor, a second sensor producing a signal indicative of a saturated condensing temperature, and a third sensor producing a signal indicative of a liquid-line temperature. Processing circuitry may processes the current or power signal to determine a derived condenser temperature and may compare the derived condenser temperature to the saturated condensing temperature received from the second sensor to determine a subcooling associated with a refrigerant charge level of the refrigeration circuit.
摘要翻译：提供一种系统，并且可以包括具有电动机和包括蒸发器和冷凝器的制冷回路的压缩机，该冷凝器与压缩机流体耦合。该系统还可以包括第一传感器，其产生指示由电动机抽出的电流和功率中的一个的信号，产生指示饱和冷凝温度的信号的第二传感器，以及产生指示液体线温度的信号的第三传感器。处理电路可以处理电流或功率信号以确定导出的冷凝器温度，并且可以将导出的冷凝器温度与从第二传感器接收的饱和冷凝温度进行比较，以确定与制冷回路的制冷剂充注水平相关联的过冷却。

7. 发明授权

US07941294B2 System and method for detecting fluid delivery system conditions based on motor parameters 有权
标题翻译：基于电机参数检测流体输送系统条件的系统和方法
公开(公告)号：US07941294B2
公开(公告)日：2011-05-10
申请号：US12368577
申请日：2009-02-10
申请人： Prakash B. Shahi , Eric J. Wildi , Mark E. Carrier , Randy L. Bomkamp , Hung M. Pham , William P. Butler
发明人： Prakash B. Shahi , Eric J. Wildi , Mark E. Carrier , Randy L. Bomkamp , Hung M. Pham , William P. Butler
IPC分类号： G06F11/30 , G21C17/00
CPC分类号： F25B49/005 , F25B49/025 , F25B2500/04 , F25B2700/151
摘要： Systems and methods for detecting various system conditions in a fluid delivery system (such as an HVAC system) based on a motor parameter are disclosed. Embodiments of the present invention relate to detecting: filter condition, frozen coil condition, register condition, energy efficiency, system failure, or any combination thereof. Embodiments of the present invention relate to detecting fluid delivery system conditions based on motor parameters including system current, system power, system efficiency, motor current, motor power, motor efficiency, and/or a change (or rate of change) in motor parameters. Techniques for responding to a clogged filter and a frozen coil are also disclosed. Also disclosed are techniques for characterizing a fluid delivery system off-site, prior to system installation.
摘要翻译：公开了一种用于基于电动机参数来检测流体输送系统（例如HVAC系统）中的各种系统状况的系统和方法。本发明的实施例涉及检测：过滤条件，冻结线圈条件，注册条件，能量效率，系统故障或其任何组合。本发明的实施例涉及基于包括系统电流，系统功率，系统效率，电动机电流，电动机功率，电动机效率和/或电动机参数的变化（或变化率）的电动机参数来检测流体输送系统状况。还公开了用于响应堵塞的过滤器和冷冻卷材的技术。还公开了在系统安装之前用于表征异地流体输送系统的技术。

8. 发明授权

US07878006B2 Compressor diagnostic and protection system and method 有权
标题翻译：压缩机诊断和保护系统及方法
公开(公告)号：US07878006B2
公开(公告)日：2011-02-01
申请号：US11098582
申请日：2005-04-04
申请人： Hung M. Pham
发明人： Hung M. Pham
IPC分类号： F25B49/00
CPC分类号： B23P15/26 , F04C28/00 , F04C2270/18 , F04C2270/19 , F04C2270/80 , F25B1/04 , F25B49/005 , F25B2500/06 , F25B2500/19 , F25B2700/151 , F25B2700/1931 , F25B2700/1933 , F25B2700/2106 , F25B2700/21151 , F25B2700/21152 , F25B2700/2116 , F25D2400/36 , Y10T29/49353
摘要： A system and method includes a compressor operable in a refrigeration circuit and including a motor, a current sensor detecting current supplied to the motor, a discharge line temperature sensor detecting discharge line temperature of the compressor, and processing circuitry receiving current data from the current sensor and discharge line temperature data from the discharge line temperature sensor and processing the current data and the discharge line temperature data to determine a capacity of the refrigeration circuit.
摘要翻译：一种系统和方法包括可在制冷回路中操作的压缩机，其包括马达，检测提供给马达的电流的电流传感器，检测压缩机的排出管线温度的排出管线温度传感器，以及从电流传感器接收电流数据的处理电路并从排出管线温度传感器排出管线温度数据，并处理当前数据和排出管线温度数据，以确定制冷回路的容量。

9. 发明申请

US20090095002A1 SYSTEM AND METHOD FOR CALCULATING PARAMETERS FOR A REFRIGERATION SYSTEM WITH A VARIABLE SPEED COMPRESSOR 有权
标题翻译：用可变速度压缩机计算制冷系统参数的系统和方法
公开(公告)号：US20090095002A1
公开(公告)日：2009-04-16
申请号：US12246927
申请日：2008-10-07
申请人： Daniel L. McSweeney , Stephen M. Seibel , Hung M. Pham
发明人： Daniel L. McSweeney , Stephen M. Seibel , Hung M. Pham
IPC分类号： F25B41/00 , F25B1/00 , F25B49/00 , G05B15/00
CPC分类号： F25B49/02 , F25B49/022 , F25B2500/19 , F25B2600/021 , F25B2700/2117 , Y02B30/741
摘要： A system and method for calculating parameters for a refrigeration system having a variable speed compressor is provided. A compressor is connected to a condenser and an evaporator. An evaporator sensor outputs an evaporator signal corresponding to at least one of an evaporator pressure and an evaporator temperature. An inverter drive modulates electric power delivered to the compressor to modulate a speed of the compressor. The control module is connected to the inverter drive and receives the evaporator signal, monitors electrical power data and compressor speed data from said inverter drive, and calculates at least one of a condenser temperature and a condenser pressure based on the evaporator signal, the electrical power data, and the compressor speed data.
摘要翻译：提供了一种用于计算具有变速压缩机的制冷系统的参数的系统和方法。压缩机连接到冷凝器和蒸发器。蒸发器传感器输出对应于蒸发器压力和蒸发器温度中的至少一个的蒸发器信号。逆变器驱动器调制输送到压缩机的电力来调节压缩机的速度。控制模块连接到逆变器驱动器并接收蒸发器信号，监视来自所述逆变器驱动器的电力数据和压缩机速度数据，并基于蒸发器信号计算冷凝器温度和冷凝器压力中的至少一个，电功率数据和压缩机速度数据。

10. 发明授权

US07484374B2 Flash tank design and control for heat pumps 有权
标题翻译：闪蒸罐设计和控制热泵
公开(公告)号：US07484374B2
公开(公告)日：2009-02-03
申请号：US11930983
申请日：2007-10-31
申请人： Hung M. Pham , Jean-Luc M. Caillat , Ronald L. Van Hoose
发明人： Hung M. Pham , Jean-Luc M. Caillat , Ronald L. Van Hoose
IPC分类号： F25B41/00
CPC分类号： F04C29/042 , F25B1/10 , F25B13/00 , F25B43/006 , F25B47/025 , F25B2313/02741 , F25B2400/02 , F25B2400/13 , F25B2400/16 , F25B2400/23 , F25B2500/01 , F25B2600/2519
摘要： A method includes operating a compressor of a heat pump system and is selectively providing vapor to a vapor injection port of the compressor via a vapor injection line and vapor injection valve. The method further includes determining a frost condition of a first and second heat exchanger of the heat pump system and closing a vapor injection valve to prevent fluid flow into the compressor at the vapor injection port. A direction of refrigerant flow is reversed to direct vaporized refrigerant to the one of said first and second heat exchangers experiencing the frost condition. The vapor injection valve is opened after a first predetermined time period following reversal of the refrigerant flow. The method further includes closing the vapor injection valve and reversing a direction of refrigerant flow within the heat pump system once the vapor injection valve is closed for a second predetermined time period.
摘要翻译：一种方法包括操作热泵系统的压缩机，并且通过蒸气喷射管线和蒸气喷射阀选择性地将蒸汽提供给压缩机的蒸气喷射端口。该方法还包括确定热泵系统的第一和第二热交换器的霜状况并关闭蒸气喷射阀以防止流体在蒸气喷射口处流入压缩机。制冷剂流动的方向相反，以将蒸发的制冷剂引导到经历霜冻状态的所述第一和第二热交换器中的一个。蒸汽喷射阀在制冷剂流动反转之后的第一预定时间段之后打开。该方法还包括关闭蒸气喷射阀并且一旦蒸汽喷射阀关闭第二预定时间段，则反转热泵系统内的制冷剂流动的方向。

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