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21. 发明授权

US07630511B2 Apparatus and methods for improving detection of watermarks in content that has undergone a lossy transformation 有权
标题翻译：用于改善经历有损变换的内容中水印检测的装置和方法
公开(公告)号：US07630511B2
公开(公告)日：2009-12-08
申请号：US10923946
申请日：2004-08-23
申请人： Jian Zhao , Justin Picard , Niels Thorwirth
发明人： Jian Zhao , Justin Picard , Niels Thorwirth
IPC分类号： G06K9/00
CPC分类号： G06T1/0028 , G06T1/005 , G06T2201/0065 , G06T2201/0081 , G07D7/0032 , G07D7/20
摘要： Techniques for watermarking sequences of digital representations and detecting the watermarks in the digital representations. One of the techniques is used when the message that is contained in a watermark belonging to a digital representation that is derived from an original watermarked digital representation cannot be decoded. The technique obtains information about the watermark by comparing the watermark vector for the watermark that cannot be decoded with a replica of the watermark vector from the original watermarked digital representation. The replica is made using the message. Depending on the degree of similarity, the watermark's presence and some of its characteristics may be determined. Another technique improves the robustness of watermarks that are used for authentication by employing a short (eve single-bit) watermark vector to make the watermark and using the message needed for the authentication to determine where the watermark is located in the digital representation.
摘要翻译：用于水印数字表示序列和检测数字表示中的水印的技术。当包含在属于从原始水印数字表示导出的数字表示的水印中的消息不能被解码时，使用其中一种技术。该技术通过将不能解码的水印的水印向量与来自原始水印数字表示的水印矢量的副本进行比较来获得关于水印的信息。副本是使用消息。根据相似度，可以确定水印的存在和其一些特征。另一种技术通过采用短（前夕单位）水印向量来制作水印并使用认证所需的消息来确定水印在数字表示中的位置，从而提高了用于认证的水印的鲁棒性。

22. 发明申请

US20090220070A1 Video Watermarking 审中-公开
标题翻译：视频水印
公开(公告)号：US20090220070A1
公开(公告)日：2009-09-03
申请号：US11990454
申请日：2005-09-09
申请人： Justin Picard , Jian Zhao
发明人： Justin Picard , Jian Zhao
IPC分类号： G06K9/00 , H04L9/28
CPC分类号： G06T1/0028 , G06T2201/0052 , G06T2201/0083 , G06T2201/0202
摘要： A method and system for watermarking video images including generating a watermark and embedding the generated watermark into video images by enforcing relationships between property values of selected sets of coefficients with a volume of video are described. The watermarks are thereby adaptively embedded in the volume of video.
摘要翻译：描述了一种用于对视频图像进行水印处理的方法和系统，包括生成水印，并且通过利用视频量来执行所选择的系数集合的属性值之间的关系，将生成的水印嵌入到视频图像中。因此，水印自适应地嵌入在视频的体积中。

23. 发明申请

US20090136083A1 Coefficient Selection for Video Watermarking 审中-公开
标题翻译：视频水印的系数选择
公开(公告)号：US20090136083A1
公开(公告)日：2009-05-28
申请号：US11990812
申请日：2005-09-09
申请人： Justin Picard , Jian Zhao
发明人： Justin Picard , Jian Zhao
IPC分类号： G06K9/00
CPC分类号： H04N19/467 , G06T1/0028 , G06T2201/0051 , G06T2201/0052 , G06T2201/0061 , G06T2201/0083 , G06T2201/0202 , H04N1/3217 , H04N1/32187 , H04N1/32277 , H04N1/32309 , H04N19/63
摘要： A method and system for watermarking video images by selecting sets of coefficients and enforcing relationships between property values of selected sets of coefficients with a volume of video are described.
摘要翻译：描述了通过选择系数集合并且执行所选择的系数集合的属性值与视频量之间的关系来对视频图像进行水印的方法和系统。

24. 发明申请

US20070187715A1 Power junction field effect power transistor with highly vertical channel and uniform channel opening 有权
标题翻译：功率结场效应功率晶体管具有高度垂直的通道和均匀的通道开口
公开(公告)号：US20070187715A1
公开(公告)日：2007-08-16
申请号：US11784613
申请日：2007-04-09
申请人： Jian Zhao
发明人： Jian Zhao
IPC分类号： H01L29/423
CPC分类号： H01L29/8083 , H01L29/1066
摘要： A semiconductor vertical junction field effect power transistor formed by a semiconductor structure having top and bottom surfaces and including a plurality of semiconductor layers with predetermined doping concentrations and thicknesses and comprising at least a bottom layer as drain layer, a middle layer as blocking and channel layer, a top layer as source layer. A plurality of laterally spaced U-shaped trenches with highly vertical side walls defines a plurality of laterally spaced mesas. The mesas are surrounded on the four sides by U-shaped semiconductor regions having conductivity type opposite to that of the mesas forming U-shaped pn junctions and defining a plurality of laterally spaced long and vertical channels with a highly uniform channel opening dimension. A source contact is formed on the top source layer and a drain contact is formed on the bottom drain layer. A gate contact is formed on the bottom of the U-shaped trenches for the purpose of creating and interrupting the vertical channels so as to turn on and turn off the transistor.
摘要翻译：一种半导体垂直结场效应功率晶体管，其由具有顶表面和底表面的半导体结构形成，并且包括具有预定掺杂浓度和厚度的多个半导体层，并且至少包括底层作为漏极层，中间层作为阻挡层和沟道层，顶层作为源层。具有高度垂直侧壁的多个横向隔开的U形沟槽限定了多个横向间隔开的台面。台面四面被U形半导体区域覆盖，该U形半导体区域的导电类型与形成U形pn结的台面的导电类型相反，并且限定了具有高度均匀的通道开口尺寸的多个横向隔开的长和垂直通道。源极触点形成在顶部源极层上，并且在底部漏极层上形成漏极接触。为了产生和中断垂直通道以形成晶体管的导通和截止，在U形沟槽的底部形成栅极接触。

25. 发明申请

US20060109515A1 Visible authentication patterns for printed document 有权
标题翻译：打印文件的可见认证模式
公开(公告)号：US20060109515A1
公开(公告)日：2006-05-25
申请号：US10514271
申请日：2003-05-14
申请人： Jian Zhao , Justin Picard , Niels Thorwirth
发明人： Jian Zhao , Justin Picard , Niels Thorwirth
IPC分类号： G06K9/00
CPC分类号： G09C5/00 , G07D7/0032 , G07D7/20 , H04L9/3226 , H04L2209/608
摘要： Techniques for determining authenticity of analog forms such as packaging or documents (117). One of the techniques determines whether the analog form has been made directly from a digital representation (903) or by photocopying or scanning an analog form. The technique makes the determination by comparing (911) an original digital representation of a portion of the analog form with a digital recording (203) of the portion from the analog form and measuring differences in features that are affected by the operations of photocopying or scanning. The original digital representation (105) and the analog form may have a “noisy”, i.e., random or pseudo random pattern. Such noisy patterns may further be used for other authentication purposes, such as determining whether the portion of the analog form that has the noisy pattern has been altered and to carry hidden messages. The noisy pattern may carry a logo or may be part or all of a barcode.
摘要翻译：用于确定诸如包装或文件的模拟形式的真实性的技术（117）。其中一种技术决定了模拟形式是直接从数字表示形式（903）还是通过复印或扫描模拟形式。该技术通过将模拟形式的一部分的原始数字表示与来自模拟形式的部分的数字记录（203）进行比较（911）来进行确定，并且测量受复印或扫描操作影响的特征的差异。原始数字表示（105）和模拟形式可以具有“噪声”，即随机或伪随机模式。这样的噪声模式可以进一步用于其他认证目的，例如确定具有噪声模式的模拟形式的部分是否已被改变并且携带隐藏消息。嘈杂的图案可能携带标志，或可能是条形码的一部分或全部。

26. 发明授权

US07006473B2 Soft handover method for CDMA mobile communication system 失效
公开(公告)号：US07006473B2
公开(公告)日：2006-02-28
申请号：US10051257
申请日：2002-01-18
申请人： Jian Zhao
发明人： Jian Zhao
IPC分类号： H04Q7/00
CPC分类号： H04W36/18 , H04W36/30
摘要： The invention discloses a CDMA soft handover method which can be used in present code division multiple access systems. The invention preserves current soft handover mechanisms triggered by a pilot signal strength variation measured by a mobile station. At the same time it introduces a communication quality indication parameter—continuous error frame indication measured by mobile station. Both function together to launch and to activate system soft handover. Without changing present soft handover processes, soft handover performance is improved, possibility of lost conversation is decreased and communication quality is raised.

27. 发明授权

US06141753A Secure distribution of digital representations 失效
标题翻译：安全分发数字表示
公开(公告)号：US06141753A
公开(公告)日：2000-10-31
申请号：US021339
申请日：1998-02-10
申请人： Jian Zhao , Eckhard Koch , Makoto Saito
发明人： Jian Zhao , Eckhard Koch , Makoto Saito
IPC分类号： H04N1/44 , G06T1/00 , G09C5/00 , H04L9/08 , H04L29/06 , H04N1/32 , H04N1/387 , H04N17/00
CPC分类号： H04N1/32144 , G06T1/0021 , H04L63/0428 , H04N1/32272 , H04L2463/101 , H04L2463/103 , H04N2201/3205 , H04N2201/323 , H04N2201/3233 , H04N2201/3235 , H04N2201/324 , H04N2201/327 , H04N2201/3274 , H04N2201/3278 , H04N2201/3281
摘要： Techniques for secure distribution of digital representations that combine encryption and watermarking. When a user at a client desires to download a digital representation, the user makes a request to a server for the digital representation, which encrypts the digital representation using a first key and downloads the encrypted digital representation to the user. Before the user performs any operation on the decrypted digital representation, a secret fingerprint watermark identifying the user is added to the digital representation. The fingerprint watermark is added either at the server or at the client and a copy of the fingerprinted digital representation is kept at the server. If the user makes an impermissible use of the digital representation, the secret fingerprint watermark can be used to identify the user. The request made by the user indicates the type of use that the user wished to make of the digital representation. If the use involves storage of the digital representation at the client, the server provides a second key that the client employs to encrypt the digital representation. If the user has permission to do so, the user may modify the digital representation and return the modified digital representation to the server for further distribution. In this case, the second key is used to encrypt the digital representation when it is sent to the server. The second key also serves as the user identification in the fingerprint watermark. If the user loses the second key, it can be recovered from the copy of the fingerprinted digital representation kept at the server. The first and second keys and any decrypted copy of the digital representation are kept in secure storage in the client.
摘要翻译：用于安全分发加密和水印的数字表示的技术。当客户端的用户希望下载数字表示时，用户向数字表示服务器发出请求，数字表示使用第一密钥加密数字表示，并将加密的数字表示下载给用户。在用户对解密的数字表示执行任何操作之前，将标识用户的秘密指纹水印添加到数字表示。指纹水印在服务器或客户机中被添加，并且指纹数字表示的副本被保存在服务器上。如果用户不允许使用数字表示，则可以使用秘密指纹水印来识别用户。由用户作出的请求指示用户希望进行数字表示的使用类型。如果使用涉及在客户端处存储数字表示，则服务器提供客户端用于加密数字表示的第二密钥。如果用户具有这样做的权限，则用户可以修改数字表示并将修改的数字表示返回到服务器以进一步分发。在这种情况下，第二个键用于在发送到服务器时对数字表示进行加密。第二个键也用作指纹水印中的用户标识。如果用户丢失第二个密钥，则可以从保存在服务器上的指纹数字表示的副本中恢复。数字表示的第一个和第二个键和任何解密的副本都保存在客户端的安全存储中。

28. 发明授权

US11797081B2 Methods, devices and media for input/output space mapping in head-based human-computer interactions 有权
公开(公告)号：US11797081B2
公开(公告)日：2023-10-24
申请号：US17408201
申请日：2021-08-20
申请人： Wei Zhou , Mona Hosseinkhani Loorak , Ghazaleh Saniee-Monfared , Sachi Mizobuchi , Xiu Yi , Pourang Polad Irani , Jian Zhao , Wei Li
发明人： Wei Zhou , Mona Hosseinkhani Loorak , Ghazaleh Saniee-Monfared , Sachi Mizobuchi , Xiu Yi , Pourang Polad Irani , Jian Zhao , Wei Li
IPC分类号： G06F3/01 , G06F3/04847 , G06F3/03 , G06F3/04842
CPC分类号： G06F3/012 , G06F3/013 , G06F3/017 , G06F3/03 , G06F3/04842 , G06F3/04847
摘要： Methods, devices, and media are disclosed for mapping of input and output spaces in head-based human-computer interactions. In some embodiments, an end-to-end method is described for designing a head-based user interface, calibrating the interface to individual users, and interacting with a user in real time by mapping head-based user inputs to an output space in a way that optimizes the target selection efficiency of the interaction. Head orientation may be leveraged to define the mapping between the user input and the output space.

29. 发明申请

US20180176487A1 SENSOR WITH VISIBLE AND INFRARED LIGHT SENSING 审中-公开
公开(公告)号：US20180176487A1
公开(公告)日：2018-06-21
申请号：US15385713
申请日：2016-12-20
申请人： Raymond Kirk Price , Denis Demandolx , Michael Bleyer , Jian Zhao
发明人： Raymond Kirk Price , Denis Demandolx , Michael Bleyer , Jian Zhao
IPC分类号： H04N5/33 , H04N5/355 , H04N5/353 , H01L27/144 , H01L27/146
CPC分类号： H04N5/332 , H01L27/1443 , H01L27/1461 , H01L27/14621 , H01L27/14645 , H01L27/14649 , H04N5/3537
摘要： A sensor device is provided that includes an array of light sensitive pixels configured in a predetermined pattern of light sensitive pixels that alternates between broadband visible light sensitive pixels and infrared light sensitive pixels, each broadband visible light sensitive pixel being configured to have increased sensitivity to light of the visible light spectrum and to have reduced sensitivity to light of the infrared light spectrum compared to each infrared light sensitive pixel, and each infrared light sensitive pixel being configured to have increased sensitivity to light of the infrared light spectrum and to have reduced sensitivity to light of the visible light spectrum compared to each broadband visible light sensitive pixel.

30. 发明申请

US20180130209A1 INTERFERENCE MITIGATION VIA ADAPTIVE DEPTH IMAGING 审中-公开
公开(公告)号：US20180130209A1
公开(公告)日：2018-05-10
申请号：US15344093
申请日：2016-11-04
申请人： Raymond Kirk Price , Jian Zhao , Michael Bleyer , Denis Demandolx
发明人： Raymond Kirk Price , Jian Zhao , Michael Bleyer , Denis Demandolx
IPC分类号： G06T7/00 , H04N5/33 , H04N5/225 , H04N5/235 , G06K9/20 , G02B27/01
摘要： An illumination source is operated to illuminate an operating environment and an optical sensor is periodically operated for a detection period to detect illumination reflected from one or more subjects within the operating environment. Upon recognizing a source of interfering pulsed illumination within the operating environment, the timing of a subsequent detection period may be varied. In this way, sensing of the interfering pulsed illumination may be averted.

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