Patents by Inventor Fuk Sang Mak
Fuk Sang Mak 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: 9503674Abstract: Embodiments disclosed herein provide systems and methods for performing video recorder failover. In a particular embodiment, a system for handing a failover of a first Network Video Recorder (NVR) is provided. The system includes a second NVR that receives a video stream and temporarily stores an amount of the video stream to the temporary storage, wherein the amount of the video stream stored in the temporary storage at any given time corresponds to a duration of time sufficient to accommodate a failover of the first NVR to the second NVR. In response to a detection of a failure of the first NVR, the second NVR records the video stream to the second long-term storage and transfers at least a portion of the video stream stored in the temporary storage to the second long-term storage.Type: GrantFiled: November 16, 2015Date of Patent: November 22, 2016Assignee: VERINT SYSTEMS INC.Inventors: Hing Yip Chung, Fuk Sang Mak, Golan Levy, Wai Chung Lam, Chong Va Cheong, Shiu Hang Tsang
-
Publication number: 20160142666Abstract: Embodiments disclosed herein provide systems and methods for performing video recorder failover. In a particular embodiment, a system for handing a failover of a first Network Video Recorder (NVR) is provided. The system includes a second NVR that receives a video stream and temporarily stores an amount of the video stream to the temporary storage, wherein the amount of the video stream stored in the temporary storage at any given time corresponds to a duration of time sufficient to accommodate a failover of the first NVR to the second NVR. In response to a detection of a failure of the first NVR, the second NVR records the video stream to the second long-term storage and transfers at least a portion of the video stream stored in the temporary storage to the second long-term storage.Type: ApplicationFiled: November 16, 2015Publication date: May 19, 2016Inventors: Hing Yip Chung, Fuk Sang Mak, Golan Levy, Wai Chung Lam, Chong Va Cheong, Shiu Hang Tsang
-
Patent number: 9204083Abstract: Embodiments disclosed herein provide systems and methods for performing video recorder failover. In a particular embodiment, a system includes a first Network Video Recorder (NVR) configured to receive a video stream and record the video stream to a first long-term storage. The system further includes a second NVR configured to receive the video stream and temporarily stores an amount of the video stream in temporary storage. In response to a detection of a failure of the first NVR, the second NVR is configured to record the video stream to the second long-term storage and transfer at least a portion of the video stream stored in the temporary storage corresponding to the amount of time between detection of the failure and when the second NVR began recording the video stream to the second long-term storage.Type: GrantFiled: July 14, 2014Date of Patent: December 1, 2015Assignee: VERINT SYSTEMS INC.Inventors: Hing Yip Chung, Fuk Sang Mak, Golan Levy, Wai Chung Lam, Chong Va Cheong, Shiu Hang Tsang
-
Publication number: 20150037007Abstract: Embodiments disclosed herein provide systems and methods for performing video recorder failover. In a particular embodiment, a system includes a first Network Video Recorder (NVR) configured to receive a video stream and record the video stream to a first long-term storage. The system further includes a second NVR configured to receive the video stream and temporarily stores an amount of the video stream in temporary storage. In response to a detection of a failure of the first NVR, the second NVR is configured to record the video stream to the second long-term storage and transfer at least a portion of the video stream stored in the temporary storage corresponding to the amount of time between detection of the failure and when the second NVR began recording the video stream to the second long-term storage.Type: ApplicationFiled: July 14, 2014Publication date: February 5, 2015Inventors: Hing Yip Chung, Fuk Sang Mak, Golan Levy, Wai Chung Lam, Chong Va Cheong, Shiu Hang Tsang
-
Patent number: 8902366Abstract: In order to trigger an out of focus alert when the focus level of a video frame meets a focus criteria, a method is performed including the operations of: receiving a video frame, partitioning the video frame into a plurality of blocks, calculating an array of discrete cosign transformation (DCT) coefficients for at least one of the plurality of blocks using a DCT, classifying each of the at least one of the plurality of blocks based on the array of DCT coefficients for that block, calculating a focus level of the video frame from the block classifications, and triggering an out of focus alert if the focus level meets a focus criteria.Type: GrantFiled: December 31, 2012Date of Patent: December 2, 2014Assignee: Verint Systems Inc.Inventors: Fuk Sang Mak, Hing Yip Chung, Tao Luo, Wai Shing Yiu, Chi Kin Lee, Shiu Hang Tsang
-
Patent number: 8781289Abstract: Embodiments disclosed herein provide systems and methods for performing video recorder failover. In a particular embodiment, a system includes a first Network Video Recorder (NVR) configured to receive a video stream and record the video stream to a first long-term storage. The system further includes a second NVR configured to receive the video stream and temporarily stores an amount of the video stream in temporary storage. In response to a detection of a failure of the first NVR, the second NVR is configured to record the video stream to the second long-term storage and transfer at least a portion of the video stream stored in the temporary storage corresponding to the amount of time between detection of the failure and when the second NVR began recording the video stream to the second long-term storage.Type: GrantFiled: August 20, 2012Date of Patent: July 15, 2014Assignee: Verint Systems Inc.Inventors: Hing Yip Chung, Fuk Sang Mak, Golan Levy, Wai Chung Lam, Chong Va Cheong, Shiu Hang Tsang
-
Patent number: 8345162Abstract: In order to trigger an out of focus alert when the focus level of a video frame meets a focus criteria, a method is performed including the operations of: receiving a video frame, partitioning the video frame into a plurality of blocks, calculating an array of discrete cosine transformation (DCT) coefficients for at least one of the plurality of blocks using a DCT, classifying each of the at least one of the plurality of blocks based on the array of DCT coefficients for that block, calculating a focus level of the video frame from the block classifications, and triggering an out of focus alert if the focus level meets a focus criteria.Type: GrantFiled: November 9, 2007Date of Patent: January 1, 2013Assignee: Verint Systems Inc.Inventors: Fuk Sang Mak, Hing Yip Chung, Tao Luo, Wai Shing Yiu, Chi Kin Lee, Shiu Hang Tsang
-
Publication number: 20120308191Abstract: Embodiments disclosed herein provide systems and methods for performing video recorder failover. In a particular embodiment, a system includes a first Network Video Recorder (NVR) configured to receive a video stream and record the video stream to a first long-term storage. The system further includes a second NVR configured to receive the video stream and temporarily stores an amount of the video stream in temporary storage. In response to a detection of a failure of the first NVR, the second NVR is configured to record the video stream to the second long-term storage and transfer at least a portion of the video stream stored in the temporary storage corresponding to the amount of time between detection of the failure and when the second NVR began recording the video stream to the second long-term storage.Type: ApplicationFiled: August 20, 2012Publication date: December 6, 2012Applicant: VERINT SYSTEMS INC.Inventors: Hing Yip Chung, Fuk Sang Mak, Golan Levy, Wai Chung Lam, Chong Va Cheong, Shiu Hang Tsang
-
Patent number: 8249413Abstract: A video recording system includes a first Network Video Recorder (NVR) that receives a video delivered via a video packet stream and records the video to a first long-term storage. A second NVR receives the same video and temporarily stores it in temporary storage. When a failure of the first NVR is detected at a first point, the second NVR starts recording the video to long-term storage. The temporarily stored video is used by the second NVR to fill in the gap in recorded video in long-term storage that occurred between the failure of the first NVR and the start of the second NVR recording the video to long-term storage.Type: GrantFiled: March 10, 2008Date of Patent: August 21, 2012Assignee: Verint Systems Inc.Inventors: Hing Yip Chung, Fuk Sang Mak, Golan Levy, Wai Chung Lam, Chong Va Cheong, Shiu Hang Tsang
-
Publication number: 20090192990Abstract: A distributed absorbing surveillance apparatus comprising a plurality of surveillance branches at which data of a video image frame is characterised, indexed and stored locally in real-time upon capturing means browsing and searching can be conducted locally at a relatively low computational overhead upon receipt of searching instructions from a central query processor. Such a distributed surveillance apparatus also facilitates enhanced target searching speed and efficiency.Type: ApplicationFiled: March 24, 2008Publication date: July 30, 2009Applicants: The University of Hong Kong, Verint Systems (Asia Pacific) Ltd.Inventors: Yuk Lun Francis Chin, Kam Pui Chow, Hing Yip Chung, Ka Ying Lai, Fuk Sang Mak, Kwan Yee Wong, Shun Cho Yuk
-
Publication number: 20090033796Abstract: In order to trigger an out of focus alert when the focus level of a video frame meets a focus criteria, a method is performed including the operations of: receiving a video frame, partitioning the video frame into a plurality of blocks, calculating an array of discrete cosign transformation (DCT) coefficients for at least one of the plurality of blocks using a DCT, classifying each of the at least one of the plurality of blocks based on the array of DCT coefficients for that block, calculating a focus level of the video frame from the block classifications, and triggering an out of focus alert if the focus level meets a focus criteria.Type: ApplicationFiled: November 9, 2007Publication date: February 5, 2009Inventors: Fuk Sang Mak, Hing Yip Chung, Tao Luo, Wai Shing Yiu, Chi Kin Lee, Shiu Hang Tsang