A data concentration system for an inner detector of an oil-gas pipeline, and a timing control method, the system includes: a multi-channel data receiving module, a data concentration module and a data transmission module. The multi-channel data receiving module is electrically connected to a plurality of probes of an inner detector and is configured to receive detection data acquired by the plurality of probes. The data concentration module is electrically connected to the multi-channel data receiving module, and is configured to receive the detection data outputted by the multi-channel data receiving module and compress the detection data. The data transmission module is electrically connected to a data storage module of the inner detector and the data concentration module respectively, and the data transmission module is configured to receive compressed detection data.

Described are techniques for video bridging for conversion of IP network video streams to the USB Video Class (UVC). The conversion of IP video to UVC video can include the use of software-only conversions and hardware assisted conversions, and can be done within purpose-built “conversion” devices or as software only solutions operating within applications or drivers within the operating systems of the “end nodes”. The end-nodes simultaneously see and use multiple USB UVC video sources. The conversion process can also convert the USB UVC video control protocol to IP Video Stream control protocols.

Described are techniques for video bridging for conversion of IP network video streams to the USB Video Class (UVC). The conversion of IP video to UVC video can include the use of software-only conversions and hardware assisted conversions, and can be done within purpose-built “conversion” devices or as software only solutions operating within applications or drivers within the operating systems of the “end nodes”. The end-nodes simultaneously see and use multiple USB UVC video sources. The conversion process can also convert the USB UVC video control protocol to IP Video Stream control protocols.

Method for transferring data from a device to a data management means, switching unit, device and system The invention relates to a method for transferring data (16) from a device (6) to a data management means (4). In order to reduce the amount of data transferred and according to the method of the invention, using modeling data (26, 42) present in the device (6) a model (30, 44) described by the modeling data (26, 42) is determined. Using the model (30, 44), the data that is actually to be transferred to the data management means (4) is selected from a volume of data (40) provided for transfer. The device (6) transfers the selected data to the data management means (4).

Provided are a method and device for transmitting an image. The method includes: adjusting an image compression ratio based on a current network transmission condition; performing compression processing on an image to be transmitted according to the adjusted image compression ratio to obtain a compressed image; and sending the compressed image to a viewing device side for the viewing device side to play the compressed image. The present disclosure ensures the fluency of image playback on the viewing device side, and improves the viewing experience of a user.

Provided are a method and device for transmitting an image. The method includes: adjusting an image compression ratio based on a current network transmission condition; performing compression processing on an image to be transmitted according to the adjusted image compression ratio to obtain a compressed image; and sending the compressed image to a viewing device side for the viewing device side to play the compressed image. The present disclosure ensures the fluency of image playback on the viewing device side, and improves the viewing experience of a user.

Embodiments are generally directed to message authentication code (MAC) based compression and decompression. An embodiment of an apparatus includes one or processors to process data; and a computer memory; wherein the one or more processors are to perform compression of a fixed transmission or storage unit, the transmission or storage unit including multiple slots, the compression of the transmission or storage unit including the one or more processors to calculate a MAC for data in the transmission or storage unit, determine whether a special value is present in any slot of the transmission or storage unit, and upon determining that the special value is present in a respective slot of the transmission or storage unit, remove the special value from the transmission or storage unit, shift remaining data of the transmission or storage unit to provide room in a first slot the transmission or storage unit, and insert the MAC in the first slot to generate a compressed transmission or storage unit.

A wireless communication method and device are provided. The method includes: a compression device sending a first data packet or a second data packet according to a compression parameter of an Ethernet frame, the second data packet being a compressed data packet of the first data packet.

A wireless communication method and device are provided. The method includes: a compression device sending a first data packet or a second data packet according to a compression parameter of an Ethernet frame, the second data packet being a compressed data packet of the first data packet.

Disclosed herein are embodiments of systems, methods, and products comprising a computing device, which provides Efficient Data-In-Transit Protection Techniques for Handheld Devices (EDITH) to protect data-in-transit. An end user device (EUD) may generate a multicast data packet. The EDITH module of the EUD encapsulates the data packet in a GRE packet and directs the GRE packet to a unicast destination address of an EDITH Multicast Router included in an infrastructure. The EDITH module on the EUD double compresses and double encrypts the GRE packet. The EDITH module on the infrastructure decrypts and decompresses the double compressed and double encrypted GRE packet to recreate the GRE packet. The EDITH module on the infrastructure decapsulates the GRE packet to derive the original multicast data packet, and distributes the original multicast data packet to the multiple group member based on the multicast destination address included in the original multicast data packet.