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402 results about "Copy control" patented technology

Copy Control is defined as a process in which important transactions in a sales document are copied from one document to other. It consists of routines, which determine the system on how the data is to be copied from a source document to a target document.

Selective dual copy control of data storage and copying in a peer-to-peer virtual tape server system

A method of storing data to one of a first or second storage device associated with a data storage system where each storage device provides for the redundant access to and storage of data within the same logical data volumes. The method of storing data consists of defining a storage construct which will direct the performance of a specific storage function. The storage construct is then associated with a logical data volume. The method further consists of mounting the logical data volume residing on one of the two storage devices and executing a storage function in accordance with the storage construct. The storage construct may be defined by a command issued by a host associated with the data storage system. Alternatively, the storage construct may be defined by a user of the data storage system through a user interface. The storage function which is directed by the defined storage construct may consist of selecting which one of the first and second storage devices will execute input/output (I/O) commands received from the data storage system for a particular logical data volume mount. Alternatively, the storage function may consist of determining whether data stored to a logical data volume physically associated with one of the storage devices will be copied to the other storage device. Other storage functions can be directed by a storage construct.
Owner:IBM CORP

Multiheaded cylinder type stone profiling machine

The invention provides a multi-head cylindrical stone copying machine. Front upright columns and back upright columns are correspondingly and vertically fixed on a base; The front upright columns and the back upright columns respectively comprise two upright columns symmetrically arranged on two sides of the base; a workpiece clamping mechanism is arranged on the front upright columns; the workpiece clamping mechanism can simultaneously clamp a plurality of machined workpieces and drive all the workpieces to synchronously rotate; and a workpiece cutting device is arranged on the back upright columns. The workpiece cutting device comprises a beam, a plurality of cutting cutter heads and a copying control device, wherein the beam which can move up and down as well as back and forth through a vertical-lifting and horizontal-shift drive mechanism is horizontally arranged between an back-left upright column and a back-right upright column; the cutting cutter heads are driven by a main shaft which is vertically supported on the beam along the longitudinal direction to synchronously cut the workpieces; and the copying control device tracks a copying template curved surface through photoelectric induction so as to control cutting drive mechanisms. The copying machine has the advantages that the copying machine can simultaneously machine a plurality of workpieces at a time, is simple to operate, reduces labor intensity, has high work efficiency and reduces production cost, and machined products are good in shape identity.
Owner:QUANZHOU JIANENG MACHINERY MFG

Video copy detection method based on multi-feature Hash

The invention discloses a video copy detection method based on multi-feature Hash, which mainly solves the problem that detection efficiency and detection accuracy cannot be effectively balanced in the exiting video copy detection algorithm. The video copy detection method based on multi-feature Hash comprises the following realization steps of: (1) extracting the pyramid histogram of oriented gradients (PHOG) of a key frame as the global feature of the key frame; (2) extracting a weighted contrast histogram based on scale invariant feature transform (SIFT) of the key frame as the local feature of the key frame; (3) establishing a target function by a similarity-preserving multi-feature Hash learning SPM2H algorithm, and obtaining L Hash functions by optimization solution; (4) mapping the key frame of a database video and the key frame of an inquired video into an L-dimensional Hash code by virtue of the L Hash functions; (5) judging whether the inquired video is the copied video or not through feature matching. The video copy detection method based on multi-feature Hash disclosed by the invention is good in robustness for multiple attacks, and capable of being used for copyright protection, copy control and data mining for digital videos on the Internet.
Owner:XIDIAN UNIV
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