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1. 发明授权

US09014578B2 Tone reproduction curve error reduction 有权
标题翻译：音调再现曲线误差降低
公开(公告)号：US09014578B2
公开(公告)日：2015-04-21
申请号：US13809283
申请日：2010-08-15
申请人： YanFu Kuo , Chao-Lung Yang , George Tsu-Chih Chiu , Yuehwern Yih , Jan Allebach , Dennis Alan Abramsohn
发明人： YanFu Kuo , Chao-Lung Yang , George Tsu-Chih Chiu , Yuehwern Yih , Jan Allebach , Dennis Alan Abramsohn
IPC分类号： G03G15/00 , H04N1/40 , H04N1/407
CPC分类号： G03G15/5033 , H04N1/40006 , H04N1/407
摘要： Control parameters of a printing device are optimized using a process model to reduce a process tone reproduction curve (TRC) error between a process TRC and a desired TRC. Tone-corrected halftone levels for the printing device are generated using a sensor model to reduce a printing device TRC error between a TRC of the printing device and the desired TRC, based on color patches printed by the printing device using the control parameters as have been optimized, as measured by one or more sensors of the printing device.
摘要翻译：使用过程模型来优化打印设备的控制参数，以减少过程TRC和期望TRC之间的过程色调再现曲线（TRC）误差。使用传感器模型生成用于打印设备的色调校正的半色调水平，以基于打印设备使用控制参数打印的色块来减少打印设备的TRC和期望的TRC之间的打印设备TRC错误，如如由打印装置的一个或多个传感器所测量的那样进行优化。

2. 发明申请

US20130114965A1 TONE REPRODUCTION CURVE ERROR REDUCTION 有权
标题翻译：音调复制曲线错误减少
公开(公告)号：US20130114965A1
公开(公告)日：2013-05-09
申请号：US13809283
申请日：2010-08-15
申请人： YanFu Kuo , Chao-Lung Yang , George Tsu-Chih Chiu , Yuehwern Yih , Jan Allebach , Dennis Alan Abramsohn
发明人： YanFu Kuo , Chao-Lung Yang , George Tsu-Chih Chiu , Yuehwern Yih , Jan Allebach , Dennis Alan Abramsohn
IPC分类号： G03G15/00
CPC分类号： G03G15/5033 , H04N1/40006 , H04N1/407
摘要： Control para met of a printing device are optimized using a process model to reduce a process tone reproduction curve (TRC) error between a process TRC and a desired TRC. Tone-corrected halftone levels for the printing device are generated using a sensor model to reduce a printing device TRC error between a TRC of the printing device and the desired TRC, based on color patches printed by the printing device using the control parameters as have been optimized, as measured by one or more sensors of the printing device.
摘要翻译：使用过程模型优化印刷装置的控制步骤，以减少过程TRC和期望TRC之间的过程色调再现曲线（TRC）误差。使用传感器模型生成用于打印设备的色调校正的半色调水平，以基于打印设备使用控制参数打印的色块来减少打印设备的TRC和期望的TRC之间的打印设备TRC错误，如如由打印装置的一个或多个传感器所测量的那样进行优化。

3. 发明授权

US06456808B1 Systems and methods for reducing banding artifact in electrophotographic devices using drum velocity control 失效
标题翻译：使用鼓速度控制来减少电子照相设备中的带状伪影的系统和方法
公开(公告)号：US06456808B1
公开(公告)日：2002-09-24
申请号：US09802193
申请日：2001-03-07
申请人： Cheng-Lun Chen , George Tsu-Chih Chiu
发明人： Cheng-Lun Chen , George Tsu-Chih Chiu
IPC分类号： G03G1500
CPC分类号： G03G15/5008
摘要： Systems and methods for reducing banding artifact in electrophotographic devices are provided. One such electrophotographic device uses a closed loop controller that receives a feedback signal from an encoder connected to the OPC drum to improve the rotational velocity control of the drum. The encoder provides the rotational position or angular velocity of the drum to the closed loop controller as the feedback signal. Optionally, the electrophotographic device uses a closed loop controller that incorporates a model of the human visual system, such as the human contrast sensitivity function, to help reduce noticeable banding artifacts. The human contrast sensitivity function incorporated into the primary control loop helps filter out low frequency and non-periodic drum rotational velocity fluctuations in producing banding artifacts. The electrophotographic device may also include a repetitive controller in a secondary control loop to help reduce the effect of periodic drum rotational velocity fluctuations in producing banding artifacts. Methods and other systems also are provided.
摘要翻译：提供了用于减少电子照相设备中的带状伪影的系统和方法。一个这样的电子照相装置使用闭环控制器，其接收来自连接到OPC鼓的编码器的反馈信号，以改善滚筒的旋转速度控制。编码器将鼓的旋转位置或角速度作为反馈信号提供给闭环控制器。可选地，电子照相设备使用包含人类视觉系统的模型的闭环控制器，诸如人对比度敏感度功能，以帮助减少显着的带状伪影。整合在主控制回路中的人体对比敏感度功能有助于过滤出产生条纹伪像的低频和非周期性鼓旋转速度波动。电子照相装置还可以包括在次级控制环路中的重复控制器，以帮助减少周期性鼓旋转速度波动在产生条纹伪影中的影响。还提供了方法和其它系统。

4. 发明授权

US06290037B1 Vibration absorber using shape memory material 失效
标题翻译：使用形状记忆材料的减振器
公开(公告)号：US06290037B1
公开(公告)日：2001-09-18
申请号：US09295717
申请日：1999-04-21
申请人： Keith A. Williams , George Tsu-Chih Chiu , Robert J. Bernhard
发明人： Keith A. Williams , George Tsu-Chih Chiu , Robert J. Bernhard
IPC分类号： F16F710
CPC分类号： F16F7/1005 , F16F7/116 , F16F2222/02 , F16F2224/0258
摘要： The present invention relates to a vibration absorber in which an absorber end mass is coupled to a primary mass by means of a cantilevered beam, wherein at least a portion of the beam comprises a shape memory alloy (SMA). Preferably, the end mass is coupled to the primary mass with several discrete SMA wires which may be individually heated. When each of the SMA wires is heated above a predetermined temperature, the SMA material undergoes a phase change which results in a change in the stiffness of the SMA wire. Heating of the various wires in various combinations allows the operational frequency of the absorber to be actively tuned. The frequency of the absorber may therefore be tuned to closely match the current vibrational frequency of the primary mass, thereby allowing the absorber to be adaptively tuned to the frequency of the primary mass in a simple and straightforward manner.
摘要翻译：吸振器技术领域本发明涉及一种吸振器，其中吸收体质量块通过悬臂梁联接到初级质量块，其中梁的至少一部分包括形状记忆合金（SMA）。优选地，末端质量体与几个离散的SMA线连接到主质量块，可以单独加热。当每根SMA线被加热到高于预定温度时，SMA材料经历相变，导致SMA线刚度的变化。以各种组合加热各种电线可以使吸收体的工作频率得到主动调节。因此，可以调节吸收器的频率以紧密地匹配初级质量块的当前振动频率，从而允许吸收器以简单和直接的方式自适应地调谐到主质量的频率。

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