Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

1447 results about "Control set" patented technology

Cryptographic methods, apparatus and systems for storage media electronic rights management in closed and connected appliances

A rights management arrangement for storage media such as optical digital video disks (DVDs, also called digital versatile disks) provides adequate copy protection in a limited, inexpensive mass-produceable, low-capability platform such as a dedicated home consumer disk player and also provides enhanced, more flexible security techniques and methods when the same media are used with platforms having higher security capabilities. A control object (or set) defines plural rights management rules for instance, price for performance or rules governing redistribution. Low capability platforms may enable only a subset of the control rules such as controls on copying or marking of played material. Higher capability platforms may enable all (or different subsets) of the rules. Cryptographically strong security is provided by encrypting at least some of the information carried by the media and enabling decryption based on the control set and / or other limitations. A secure "software container" can be used to protectively encapsulate (e.g., by cryptographic techniques) various digital property content (e.g., audio, video, game, etc.) and control object (i.e., set of rules) information. A standardized container format is provided for general use on / with various mediums and platforms. In addition, a special purpose container may be provided for DVD medium and appliances (e.g., recorders, players, etc.) that contains DVD program content (digital property) and DVD medium specific rules. The techniques, systems and methods disclosed herein are capable of achieving compatibility with other protection standards, such as for example, CGMA and Matsushita data protection standards adopted for DVDs. Cooperative rights management may also be provided, where plural networked rights management arrangements collectively control a rights management event on one or more of such arrangements.
Owner:INTERTRUST TECH CORP

System and method for remotely controlling set-top box

The invention relates to a system and a method for remotely controlling a set-top box. The system comprises a television set-top box and a family network domain, wherein the television set-top box receives programme signals of various types, which are provided by operators; the home network domain comprises a home gateway, a television set-top box and a signal transformation device, wherein the television set-top box is connected with the signal transformation device and inputs programme signals to the signal transformation device, a mobile terminal accesses the home gateway through a mobile network and logs on after being verified by the home gateway, the programme signals sent by the signal transformation device are received by the mobile terminal, and the signal transformation device transforms remote control commands sent by the mobile terminal to infrared control signals which can be received and identified by the television set-top box so as to remotely control the mobile terminal of the television set-top box. The invention has the advantage that television programmes of a home television set-top box can be televiewed through a common mobile terminal provided with client-side software, thereby televiewing high-definition digital television programmes anywhere and anytime, and the television set-top box programmes are controlled by the mobile terminal.
Owner:融创天下(上海)科技发展有限公司

Hydraulic transmission-based method and device for storing energy and realizing stabilized voltage and constant frequency in wave power generation

The invention discloses a hydraulic transmission-based method and a hydraulic transmission-based device for storing energy and realizing stabilized voltage and constant frequency in wave power generation. In the device, a floating pendulum is connected with a hydraulic cylinder, high pressure oil outputted by a non-rod cavity of the hydraulic cylinder enters a high pressure energy storing device and an oil inlet of a variable motor through a control integrated valve and through a high pressure oil tube, low pressure oil outputted by an oil outlet of the variable motor enters a low pressure big-capacity energy storing device and returns to the rod cavity of the hydraulic cylinder through the control integrated valve, the main shaft of the variable motor is connected with a permanent magnet synchronous generator, and the permanent magnet synchronous generator is connected to a rectifying module and a direct-current electric energy charging-discharging control module and then connected to a stepless unload adjustable load and a storage battery. The high pressure energy storing device and the low pressure big-capacity energy storing device realize the energy storage by absorbing the fluctuation, caused by the change of transient waves, of pressure and flow rate. A controller realizes the pressure stabilization constant frequency by the stepless unload adjustable load and the displacement of the hydraulic motor respectively. The device has the advantage of making the wave power generating device output more smoothly, more free from influence of the wave impact and have higher efficiency.
Owner:ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products