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    • 41. 发明授权
    • Programmable optical processing device employing stacked light modulator elements in fractional Fourier planes
    • 在分数傅里叶平面中采用堆叠光调制器元件的可编程光学处理器件
    • US07609447B2
    • 2009-10-27
    • US11929259
    • 2007-10-30
    • Lester F. Ludwig
    • Lester F. Ludwig
    • G02B27/46
    • G06E1/00G02B27/46G06E3/00G06E3/003Y10S359/90
    • A monolithic or hybrid integrated optical processor or optical processing system having a plurality of light modulating array elements, each controlled by respective control signals, and arranged so that each light modulating array element lies in a different fractional Fourier transform plane. In various embodiments, at least a portion of the resulting system is implemented in a stack of element materials. In one embodiment, a segment of graded index material lies between consecutive light modulating array elements. Other features include obtaining images from an electronically-controllable image source, using an image sensor to change the processed image into an electrical output, and using at least one of the light modulating array element to introduce a phase shift.
    • 一种单片或混合集成光学处理器或光学处理系统,其具有多个光调制阵列元件,每个光调制阵列元件由各个控制信号控制,并且被布置为使得每个光调制阵列元件位于不同的分数傅立叶变换平面中。 在各种实施例中,所得到的系统的至少一部分被实现为一堆元件材料。 在一个实施例中,渐变索引材料的一段位于连续的光调制阵列元件之间。 其他特征包括从电子可控图像源获得图像,使用图像传感器将经处理的图像改变为电输出,并且使用光调制阵列元件中的至少一个来引入相移。
    • 43. 发明授权
    • Method for real-time communication between plural users
    • 多个用户之间实时通信的方法
    • US07421470B2
    • 2008-09-02
    • US10721905
    • 2003-11-26
    • Lester F. LudwigJ. Chris LauwersKeith A. LantzGerald J. BurnettEmmett R. Burns
    • Lester F. LudwigJ. Chris LauwersKeith A. LantzGerald J. BurnettEmmett R. Burns
    • G06F15/16G06F3/00
    • G06Q10/10H04L12/1818Y10S707/99933Y10S707/99953
    • A method of real-time communication between a plurality of users each with respective communication devices having associated displays, the method comprising the steps of providing each of the plurality of users with collaboration initiation software at their communication devices and allowing at least first and second users to connect to at least one communication network by logging in at their respective communication devices. Further, the method comprises maintaining service records for at least the first and second logged in users, the service records including user identification information and an associated location where each user is logged in. A display of a user identifier for at least the second user on the display of at least a first user's communication device is provided, thereby allowing the user to select the displayed second user's identifier and retrieve necessary addressing information of the second user so that a connection between the first and second users can be established, thereby enabling real-time communication including video images of at least one user and real-time text messages displayed on the display associated with at least one user.
    • 一种在多个用户之间进行实时通信的方法,每个用户各自具有相关联的显示器的通信设备,所述方法包括以下步骤:在其通信设备处提供多个用户中的每个用户协作启动软件,并允许至少第一和第二用户 通过在其各自的通信设备登录来连接至少一个通信网络。 此外,该方法包括维护至少第一和第二登录用户的服务记录,服务记录包括用户标识信息和每个用户登录的关联位置。至少第二用户的用户标识符的显示 提供了至少第一用户的通信设备的显示,从而允许用户选择所显示的第二用户的标识符并且检索第二用户的必需寻址信息,使得可以建立第一和第二用户之间的连接,从而实现 包括至少一个用户的视频图像的时间通信和显示在与至少一个用户相关联的显示器上的实时文本消息。
    • 45. 发明授权
    • Programmable optical processing device employing multiple controllable light modulator elements in fractional fourier transform planes
    • 在分数傅立叶变换平面中采用多个可控光调制元件的可编程光学处理器件
    • US07391570B2
    • 2008-06-24
    • US11294685
    • 2005-12-05
    • Lester F. Ludwig
    • Lester F. Ludwig
    • G02B27/46
    • G06E1/00G02B27/46G06E3/00G06E3/003Y10S359/90
    • A programmable optical processing device employing a plurality of controllable light modulator elements. First and second optical elements are positioned to create an optical region therebetween comprising a Fourier transform plane and at least one non-Fourier optical region from the Fourier transform plane. In one embodiment at least one of these non-Fourier optical regions comprises fractional Fourier regions. Multiple controllable light modulator elements located in a non-Fourier optical region may be adjacently stacked, spatially separated, or separated by GRIN material. The controllable light modulator elements further implement optical transfer functions that are positive-definite or non-positive-definite, and which may be controlled by electrical and/or optical control signals. In one embodiment the system may comprise a monolithic device and/or be comprised by a monolithic device.
    • 一种采用多个可控光调制器元件的可编程光学处理装置。 定位第一和第二光学元件以在其间产生包括傅立叶变换平面和从傅里叶变换平面的至少一个非傅里叶光学区域的光学区域。 在一个实施例中,这些非傅里叶光学区域中的至少一个包括分数傅里叶区域。 位于非傅里叶光学区域中的多个可控光调制器元件可以由GRIN材料相邻堆叠,空间分离或分离。 可控光调制器元件进一步实现了正定或非正定光学传输函数,并可由电和/或光控制信号来控制。 在一个实施例中,系统可以包括单片设备和/或由单片设备组成。
    • 46. 发明授权
    • Method for real-time communication between plural users
    • 多个用户之间实时通信的方法
    • US07206809B2
    • 2007-04-17
    • US10721343
    • 2003-11-26
    • Lester F. LudwigJ. Chris LauwersKeith A. LantzGerald J. BurnettEmmett R. Burns
    • Lester F. LudwigJ. Chris LauwersKeith A. LantzGerald J. BurnettEmmett R. Burns
    • G06F15/16
    • G06Q10/10H04L12/1818Y10S707/99933Y10S707/99953
    • A method of real-time communication between a plurality of users each with respective communication devices having associated displays, the method comprising the steps of providing each of the plurality of users with collaboration initiation software at their communication devices and allowing at least first and second users to connect to at least one communication network by logging in at their respective communication devices. Further, the method comprises maintaining service records for at least the first and second logged in users, the service records including user identification information and an associated location where each user is logged in no matter where they are located. A display of a user identifier for at least the second user on the display of at least a first user's communication device is caused, thereby allowing the user to select the displayed second user's identifier and retrieve necessary addressing information of the second user so that a connection between the first and second users can be established, thereby enabling real-time communication displayed on the display of the first and second users.
    • 一种在多个用户之间进行实时通信的方法,每个用户各自具有相关联的显示器的通信设备,所述方法包括以下步骤:在其通信设备处提供多个用户中的每个用户协作启动软件,并允许至少第一和第二用户 通过在其各自的通信设备登录来连接至少一个通信网络。 此外,该方法包括维护至少第一和第二登录用户的服务记录,服务记录包括用户标识信息和每个用户登录的关联位置,无论它们位于何处。 导致在至少第一用户的通信设备的显示器上显示至少第二用户的用户标识符,从而允许用户选择所显示的第二用户的标识符并且检索第二用户的必需寻址信息,使得连接 可以建立在第一和第二用户之间,从而使能显示在第一和第二用户的显示器上的实时通信。
    • 47. 发明授权
    • Multimedia services using central office
    • 使用中心局的多媒体服务
    • US06972786B1
    • 2005-12-06
    • US09471577
    • 1999-12-23
    • Lester F. Ludwig
    • Lester F. Ludwig
    • H04N7/14
    • H04N7/152
    • A system for providing video communication services to one or more premises with video communications-services users, comprising a first premises network, a plurality of user workstations interconnected by the first premises network, and a multimedia central office being in communication with the first premise network and a public digital network. The multimedia central office, in use, transceives audio, video and digital data signals for providing at least switching functions originating at or destined for at least one user workstation, to and from the first premises network to provide video communications services. The central office further is coupled to at least one other workstation, not associated with the first premises network, and is configured to combine captured video images, of at least three users including an image from a workstation in the first premises network and an image from a workstation not in the first premises network, into a mosaic image for reproduction at a workstation of at least one user.
    • 一种用于向具有视频通信服务用户的一个或多个房屋提供视频通信服务的系统,包括第一房屋网络,由第一房屋网络互连的多个用户工作站以及与第一房屋网络通信的多媒体中心局 和一个公共数字网络。 正在使用的多媒体中心局收发音频,视频和数字数据信号,用于至少提供至少一个用户工作站的至少一个用户工作站的交换功能,以提供和从第一前端网络提供视频通信服务。 中央办公室还耦合到至少一个不与第一房屋网络相关联的其他工作站,并且被配置为组合至少三个用户的捕获视频图像,包括来自第一房屋网络中的工作站的图像和来自 不在第一房屋网络中的工作站,在至少一个用户的工作站处转换成用于再现的马赛克图像。