Techniques are described for expanding and/or improving the Advanced Television Systems Committee (ATSC) 3.0 television protocol in robustly delivering the next generation broadcast television services. Multiple memory buffers are used to manage broadcast packet repair and presentation or storage.

To monitor audio-visual content which includes captions, caption fingerprints are derived from a length of each word in the caption, without regard to the identity of the character or characters forming the word. Audio-visual content is searched to identify a caption event having a matching fingerprint and missing captions; caption timing errors and caption discrepancies are measured.

The present technology relates to a transmission device, a reception device, a control method, a program, and a transmission and reception system capable of increasing a data transmission efficiency. In a case where a data stream is transmitted in a predetermined mode, and when a parameter that defines content of the mode is changed, the transmission device according to one aspect of the present technology switches transmission of the data stream in the mode defined by the changed parameter is started after training processing for performing data synchronization and correction of a difference between data timings of the lanes by the reception device is executed or is started without executing the training processing according to a type of a parameter to be changed. The present technology is applied to data transmission between chips.

A method of transmitting image data in a safety sensor or in a safety system is provided, in which transmission errors are recognized in that meta information is added to the image data prior to the transmission and the meta information is checked after the transmission. The image data are here transmitted by an unsafe communication link, in particular a black channel, the meta information is prepended and/or appended to the image data and/or to the partial packets, and the meta information comprises a piece of information on the structure of the image data.

The present technology relates to a transmission device, a reception device, a control method, a program, and a transmission and reception system capable of increasing a data transmission efficiency. In a case where a data stream is transmitted in a predetermined mode, and when a parameter that defines content of the mode is changed, the transmission device according to one aspect of the present technology switches transmission of the data stream in the mode defined by the changed parameter is started after training processing for performing data synchronization and correction of a difference between data timings of the lanes by the reception device is executed or is started without executing the training processing according to a type of a parameter to be changed. The present technology is applied to data transmission between chips.

Techniques are described for expanding and/or improving the Advanced Television Systems Committee (ATSC) 3.0 television protocol in robustly delivering the next generation broadcast television services. Multiple memory buffers are used to manage broadcast packet repair and presentation or storage.

A method and apparatus for upgrading software in a front-end device connectable to a back-end device through a coaxial cable. The method includes receiving an instruction for a software upgrade, which is inserted into a horizontal blanking region of a video signal, from the back-end device through the coaxial cable, receiving, in sequence, data packets inserted into the horizontal blanking region, from the back-end device through the coaxial cable, the data packets including data for the software upgrade, and upgrading software in the front-end device based on the received data packets. Existing coaxial cables in a video surveillance system are used to transmit the data for the software upgrade, and during data transmission for the software upgrade the normal monitoring function of the video surveillance system is enabled.

The present technology relates to a transmission device, a reception device, a control method, a program, and a transmission and reception system capable of increasing a data transmission efficiency.

In a case where a data stream is transmitted in a predetermined mode, and when a parameter that defines content of the mode is changed, the transmission device according to one aspect of the present technology switches transmission of the data stream in the mode defined by the changed parameter is started after training processing for performing data synchronization and correction of a difference between data timings of the lanes by the reception device is executed or is started without executing the training processing according to a type of a parameter to be changed. The present technology is applied to data transmission between chips.

A transmission device includes an image processing unit that controls transmission of a first packet including region information regarding a region detected from an image and controls transmission of a second packet for each of lines in which at least the region has been detected in the image. The second packet comprises a header including information regarding the line, and a payload including region data concerning a partial region corresponding to the line, out of the region, in which the header includes: identification information of the data included in the payload; an error correction code of the information included in the header; and an extension region provided so as to be interposed between the identification information and the error correction code, and information indicating whether or not the region data is included in the payload corresponding to the header is set in at least a part of the extension region.

A method and apparatus for upgrading software in a front-end device connectable to a back-end device through a coaxial cable. The method includes receiving an instruction for a software upgrade, which is inserted into a horizontal blanking region of a video signal, from the back-end device through the coaxial cable, receiving, in sequence, data packets inserted into the horizontal blanking region, from the back-end device through the coaxial cable, the data packets including data for the software upgrade, and upgrading software in the front-end device based on the received data packets. Existing coaxial cables in a video surveillance system are used to transmit the data for the software upgrade, and during data transmission for the software upgrade the normal monitoring function of the video surveillance system is enabled.