Patents by Inventor Qibin Sun

Qibin Sun has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9998508
    Abstract: A technology for interacting with a collaborative videoconferencing environment is disclosed. A display having a substantially “L-shaped” configuration allows for display of collaborative materials and video of remote participants simultaneously, which provides for a more natural interaction for a meeting participant interacting with the collaborative materials. Meeting participants in the collaborative videoconferencing environment, both locally and remote, can simultaneously interact with the same content as if they were in the same location.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: June 12, 2018
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Qibin Sun, Zhishou Zhang, Susie Wee, Kai Chen, Yajun Zhang, Yi You, Zhongping Zhu
  • Patent number: 9609030
    Abstract: An arrangement for a collaborative videoconferencing environment is disclosed. A display having a substantially “L-shaped” configuration allows for display of collaborative materials and video of remote participants simultaneously, which provides for a more natural interaction for a meeting participant interacting with the collaborative materials. Additionally, a camera is arranged to focus on the meeting participants shoulder while the meeting participant is interacting with the collaborative materials. Such location of the camera provides a more natural view of the collaborator to remote users.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: March 28, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: Qibin Sun, Zhishou Zhang, Susie Wee, Kai Chen, Yajun Zhang, Yi You
  • Publication number: 20160277461
    Abstract: A technology for interacting with a collaborative videoconferencing environment is disclosed. A display having a substantially “L-shaped” configuration allows for display of collaborative materials and video of remote participants simultaneously, which provides for a more natural interaction for a meeting participant interacting with the collaborative materials. Meeting participants in the collaborative videoconferencing environment, both locally and remote, can simultaneously interact with the same content as if they were in the same location.
    Type: Application
    Filed: March 24, 2016
    Publication date: September 22, 2016
    Inventors: Qibin Sun, Zhishou Zhang, Susie Wee, Kai Chen, Yajun Zhang, Yi You, Zhongping Zhu
  • Patent number: 9323417
    Abstract: A technology for interacting with a collaborative videoconferencing environment is disclosed. A display having a substantially “L-shaped” configuration allows for display of collaborative materials and video of remote participants simultaneously, which provides for a more natural interaction for a meeting participant interacting with the collaborative materials. Meeting participants in the collaborative videoconferencing environment, both locally and remote, can simultaneously interact with the same content as if they were in the same location.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: April 26, 2016
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Qibin Sun, Zhishou Zhang, Susie Wee, Kai Chen, Yajun Zhang, Yi You, Zhongping Zhu
  • Patent number: 9298342
    Abstract: A technology for interacting with a collaborative videoconferencing environment is disclosed. A display having a substantially “L-shaped” configuration allows for display of collaborative materials and video of remote participants simultaneously, which provides for a more natural interaction for a meeting participant interacting with the collaborative materials. Meeting participants in the collaborative videoconferencing environment can be classified based on position with respect to the environment, or their likely interaction profile. The technology can configure a meeting experience based on the classification of the meeting participant.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: March 29, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Yajun Zhang, Yi You, Zhongping Zhu, Susie Wee, Qibin Sun
  • Publication number: 20150085058
    Abstract: A technology for interacting with a collaborative videoconferencing environment is disclosed. A display having a substantially “L-shaped” configuration allows for display of collaborative materials and video of remote participants simultaneously, which provides for a more natural interaction for a meeting participant interacting with the collaborative materials. Meeting participants in the collaborative videoconferencing environment can be classified based on position with respect to the environment, or their likely interaction profile. The technology can configure a meeting experience based on the classification of the meeting participant.
    Type: Application
    Filed: October 11, 2013
    Publication date: March 26, 2015
    Applicant: Cisco Technology, Inc.
    Inventors: Yajun Zhang, Yi You, Zhongping Zhu, Susie Wee, Qibin Sun
  • Publication number: 20150085061
    Abstract: An arrangement for a collaborative videoconferencing environment is disclosed. A display having a substantially “L-shaped” configuration allows for display of collaborative materials and video of remote participants simultaneously, which provides for a more natural interaction for a meeting participant interacting with the collaborative materials. Additionally, a camera is arranged to focus on the meeting participants shoulder while the meeting participant is interacting with the collaborative materials. Such location of the camera provides a more natural view of the collaborator to remote users.
    Type: Application
    Filed: October 11, 2013
    Publication date: March 26, 2015
    Applicant: Cisco Technology, Inc.
    Inventors: Qibin Sun, Zhishou Zhang, Susie Wee, Kai Chen, Yajun Zhang, Yi You
  • Publication number: 20150085065
    Abstract: A technology for interacting with a collaborative videoconferencing environment is disclosed. A display having a substantially “L-shaped” configuration allows for display of collaborative materials and video of remote participants simultaneously, which provides for a more natural interaction for a meeting participant interacting with the collaborative materials. Meeting participants in the collaborative videoconferencing environment, both locally and remote, can simultaneously interact with the same content as if they were in the same location.
    Type: Application
    Filed: October 11, 2013
    Publication date: March 26, 2015
    Applicant: Cisco Technology, Inc.
    Inventors: Qibin Sun, Zhishou Zhang, Susie Wee, Kai Chen, Yajun Zhang, Yi You, Zhongping Zhu
  • Publication number: 20150089394
    Abstract: A technology for interacting with a collaborative videoconferencing environment is disclosed. A display having a substantially “L-shaped” configuration allows for display of collaborative materials and video of remote participants simultaneously, which provides for a more natural interaction for a meeting participant interacting with the collaborative materials. Meeting participants can electronically retrieve or send materials to the collaborative meeting via interactions with their personal computing devices.
    Type: Application
    Filed: October 11, 2013
    Publication date: March 26, 2015
    Applicant: Cisco Technology, Inc.
    Inventors: Kai Chen, Liya Du, Yi You, Chanli Zhong, Siqi Ling, Qibin Sun, Susie Wee
  • Publication number: 20070253592
    Abstract: A method of protecting a digital image, the method comprising extracting feature values from the digital image based on a selected authentication bit-rate; embedding data corresponding to the feature values as a watermark in a into the digital image; and creating an image signature based on the data corresponding to the feature values.
    Type: Application
    Filed: September 24, 2004
    Publication date: November 1, 2007
    Inventors: Qibin Sun, Zhishou Zhang, Dajun He
  • Patent number: 6988201
    Abstract: A method, an apparatus, and a computer program product for digital audio watermarking of wavetable (WT) format audio, including downloadable sounds (DLS) (110), are disclosed. Correspondingly, a method, an apparatus, and a computer program product for extracting watermarks (126, 552) from a digital audio watermarked WT audio (162, 510) are disclosed. In particular, a digital audio watermark (126) is embedded (140, 130) in both articulation parameters (122) and sample data (124) of a DLS (110). A finite automaton module (220) is used to implement adaptive coding (130) of the sample data (124). Virtual parameters (430) are generated for information hiding (140) applied to the articulation parameters (122). Optionally, playback of the WT (152) can be limited by an embedded control signal. Brief overviews of MIDI and DLS are provided.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: January 17, 2006
    Assignee: Kent Ridge Digital Labs
    Inventors: Changsheng Xu, Jiankang Wu, Qibin Sun
  • Publication number: 20050129268
    Abstract: A system for watermarking an image file selects coefficients using a selection procedure that is kept secret, and assigns the selected coefficients to coefficient pairs. The difference between the coefficients of the pairs is biased by a value that varies, preferably in a pseudo-random manner, and the biased differences are used to generate signature bits that characterize the authentic image at different locations. To detect an unauthorized alteration after the image file has been watermarked, coefficient pairs are selected using the same secret procedure that was originally used to generate the signature bits. The difference between the coefficients of the pairs is then biased and checked against the signature bits. Using a varying bias value permits a tolerance band for reducing false alarms to be used without the risk that would otherwise exist that evidence of an attack on the original image might be hidden in the tolerance band.
    Type: Application
    Filed: June 28, 2002
    Publication date: June 16, 2005
    Inventors: Kurato Maeno, Qibin Sun, Shih-Fu Chang, Masayuki Suto
  • Publication number: 20040128511
    Abstract: Techniques for signing multimedia content and verifying received multimedia content that are both robust and accurate are provided. Invariant features are extracted from multimedia content, and certain attributes are computed. Multimedia content is quantized, and extracted invariant features and quantized original multimedia content are encrypted to form a digital signature. The multimedia content and digital signature may be verified even after the introduction of distortions by using content registration. In a preferred embodiment, a refined authentication technique is used to obtain a continuous distance measure, to verify the authenticity of multimedia content based on a pre-defined threshold.
    Type: Application
    Filed: January 29, 2003
    Publication date: July 1, 2004
    Inventors: Qibin Sun, Shih-Fu Chang, Di Zhong, Desai Nayasimhalu
  • Patent number: 6748533
    Abstract: A method, an apparatus and a computer program product are disclosed for protecting the legitimacy of an article (100), and in particular an electronic document, against forgery or fraud. Such articles include passports, credit cards, bank notes, lottery tickets, secure forms. The method includes the following steps: several watermarks (204, 224, 244) are generated independently (304, 306, 308) by different cryptographic watermarking mechanisms controlled utilising information permanently associated within the article or product (100); and each watermark is embedded in a linked cryptographic manner (160, 162, 164). Subsequently, the watermarks can be scanned and digitised (410). The authenticity of the article (100) can be determined by verifying the correctness of extracted watermarks and the encryption links (160, 162, 164) among them. Also disclosed is a method of embedding an invisible watermark (714) in an official seal (712) incorporated in an electronic article or document (700).
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: June 8, 2004
    Assignee: Kent Ridge Digital Labs
    Inventors: Jiankang Wu, Qibin Sun, Huijie Robert Deng
  • Patent number: 6678389
    Abstract: A steganographic method is disclosed to embed an invisible watermark into an image. It can be used for copyright protection, content authentication or content annotation. The technique is mainly based on K-L transform. Firstly a block and cluster step 106 and cluster selection step 108 are performed to enhance the optimization of K-L transform 110 for a given image. Then a watermark is embedded 114 into the selected eigen-clusters. ECC (Error Correction Code) can be employed to reduce the embedded code error rate. The proposed method is characterized by robustness despite the degradation or modification on the watermarked content. Furthermore, the method can be extended to video, audio or other multimedia especially for multimedia databases in which the stored multimedia are categorized by their contents or classes.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: January 13, 2004
    Assignee: Kent Ridge Digital Labs
    Inventors: Qibin Sun, Jiankang Wu, Huijie Robert Deng
  • Patent number: 6674861
    Abstract: A method, an apparatus and a computer program product for adaptive, content-based watermark embedding of a digital audio signal (100) are disclosed. Corresponding watermark extracting techniques are also disclosed. Watermark information (102) is encrypted (120) using an audio digest signal, i.e. a watermark key (108). To optimally balance inaudibility and robustness when embedding and extracting watermarks (450), the original audio signal (100) is divided into fixed-length frames (1100, 1120, 1130) in the time domain. Echoes (S′[n], S″[n]) are embedded in the original audio signal (100) to represent the watermark (450). The watermark (450) is generated by delaying and scaling the original audio signal (100) and embedding it in the audio signal (100). An embedding scheme (104) is designed for each frame (1100, 1120, 1130) according to its properties in the frequency domain.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: January 6, 2004
    Assignee: Kent Ridge Digital Labs
    Inventors: Changsheng Xu, Jiankang Wu, Qibin Sun, Kai Xin, Haizhou Li