摘要:
The present invention discloses a multi-carrier digital multimedia broadcast system and the digital information transmission method thereof. After RS encoding and byte interleaving, LDPC encoding, bit interleaving and constellation mapping to an upper layer of data streams in turn, the obtained data symbol is multiplexed with scattered pilots and continual pilots which include the system information to form an OFDM frequency domain symbol and scrambled; an OFDM time domain symbol is generated by IFFT transforming, and after inserted with the frame head to build a time slot, it is connected to form a signal frame of the physical layer; the signal frame of the physical layer is transmitted after being low-pass filtered and orthogonal upconverted. The system and method thereof provide wireless broadcast with high quality such as audio, video and multimedia data and the like for mobile, fixed and portable receivers, and can use the satellite transmission and terrestrial transmission method for transmitting. The method utilizes the LDPC OFDM scheme, and the system applies the microwave and large scale integrated circuit technologies while fulfills the needs for low cast and high performance.
摘要:
The present invention discloses a multi-carrier digital multimedia broadcast system and the digital information transmission method thereof. After RS encoding and byte interleaving, LDPC encoding, bit interleaving and constellation mapping to an upper layer of data streams in turn, the obtained data symbol is multiplexed with scattered pilots and continual pilots which include the system information to form an OFDM frequency domain symbol and scrambled; an OFDM time domain symbol is generated by IFFT transforming, and after inserted with the frame head to build a time slot, it is connected to form a signal frame of the physical layer; the signal frame of the physical layer is transmitted after being low-pass filtered and orthogonal upconverted. The system and method thereof provide wireless broadcast with high quality such as audio, video and multimedia data and the like for mobile, fixed and portable receivers, and can use the satellite transmission and terrestrial transmission method for transmitting. The method utilizes the LDPC OFDM scheme, and the system applies the microwave and large scale integrated circuit technologies while fulfills the needs for low cast and high performance.
摘要:
A method of processing a body inspection image and a body inspection apparatus are disclosed. In one embodiment, the method may comprise recognizing a target region by means of pattern recognition, and performing privacy protection processing on the recognized target region. The target region may comprise a head and/or crotch part. According to the present disclosure, it is possible to achieve a compromise between privacy protection and body inspection.
摘要:
A method of processing a body inspection image and a body inspection apparatus are disclosed. In one embodiment, the method may comprise recognizing a target region by means of pattern recognition, and performing privacy protection processing on the recognized target region. The target region may comprise a head and/or crotch part. According to the present disclosure, it is possible to achieve a compromise between privacy protection and body inspection.
摘要:
This disclosure relates to a photovoltaic cell containing first and second electrodes, a photoactive layer between the first and second electrodes, and a hole transport layer between the first electrode and the photoactive layer. The hole transport layer consists of an ionic copolymer.
摘要:
The present invention provides a customizing system and a customizing method for converting a desktop application into a web application. A required processing logic may be added by locating an interface element which is needed to be modified, and modifying a callback function of the interface element (interface description data), so as to implement user's operations on local data by a web application. When a user operates on the modified interface element at a browser side, the added processing logic automatically converts the user's operation to a plurality of operations, so that the user may feel that he is operating on a local file at the browser side, rather than a remote file at a server side. The present invention may implement complex webpage function customization, and thus may implement remote operations on local data.
摘要:
A lighter includes a flint igniter igniting a flame positioned adjacent to a torch nozzle thereof to light up gas emitted from the torch nozzle to form a torch in which the gas released from a gas container of the lighter is distributed to have portion emitted from a flame outlet for producing the flame while the other portion is emitted from the torch nozzle and ignited by the flame produced at the flame outlet. After lighting up the gas to form the torch, the gas from the flame outlet is blocked to stop the ignition flame.
摘要:
Transparent conducting oxide thin films having a reduced indium content and/or an increased tin content are provided. In addition, processes for producing the same, precursors for producing the same, and transparent electroconductive substrate for display panels and organic electroluminescence devices, both including the transparent conducting oxide thin films, are provided.