Abstract: A method for managing charging and discharging of a parallel-connected battery pack, including: obtaining a voltage value and a state of charge of a plurality of battery packs; comparing the voltage value and the state of charge of each of the battery packs with a reference voltage value and a reference state of charge; and managing charging and discharging of the plurality of battery packs based on a comparison result. The method can enhance automation of paralleling of battery packs, increase adaptability of a paralleling system, improve paralleling efficiency, further reduce operation and maintenance costs, and improve user experience.

Abstract: A method for managing charging and discharging of a parallel-connected battery pack, including: obtaining a voltage value and a state of charge of a plurality of battery packs; comparing the voltage value and the state of charge of each of the battery packs with a reference voltage value and a reference state of charge; and managing charging and discharging of the plurality of battery packs based on a comparison result. The method can enhance automation of paralleling of battery packs, increase adaptability of a paralleling system, improve paralleling efficiency, further reduce operation and maintenance costs, and improve user experience.

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.

Abstract: The present invention discloses systems and methods for automatically parsing digital video content into segments corresponding to fundamental semantic units, events, and camera views, and streaming parsed digital video content to users for display and browsing. The systems and methods effectively use the domain-specific knowledge such as regular structures of fundamental semantic units, unique views corresponding to the units, and the predictable state transition rules. The systems and methods also include scene change detection, video text recognition, and view recognition. The results of parsing may be used in a personal video browsing/navigation interface system. Furthermore, a novel adaptive streaming method in which quality levels of video segments are varied dynamically according to the user preference of different segments is disclosed.

Abstract: Object-oriented methods and systems for permitting a user to locate one or more video objects from one or more video clips over an interactive network are disclosed. The system includes one or more server computers (110) comprising storage (111) for video clips and databases of video object attributes, a communications network (120), and a client computer (130). The client computer contains a query interface to specify video object attribute information, including motion trajectory information (134), a browser interface to browse through stored video object attributes within the server computers, and an interactive video player.