# US 10,313,709 B2 · Transmission device, transmission method, reception device, reception method, display device, and display method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,313,709 B2 - Document ID: US10313709B2 - Status: Granted - Kind: B2 - Application number: 15/111,056 - Filed: 2015-01-13 - Published: 2016-11-24 - Granted: 2019-06-04 - Earliest claimed: 2014-02-07 - Assignees: Sony Corporation - Applicants: Sony Corporation - Inventors: Ikuo Tsukagoshi - Web page: https://patentgrep.com/patent/US10313709B2 ## CPC - H04N 21/234: Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs - H04N 5/20: Circuitry for controlling amplitude response - H04N 19/70: characterised by syntax aspects related to video coding, e.g. related to compression standards - H04N 21/2343: involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements {(video transcoding H04N19/40; media packet handling at the source H04L65/762)} - H04N 21/235: Processing of additional data, e.g. scrambling of additional data or processing content descriptors - H04N 21/2362: Generation or processing of Service Information [SI] - H04N 21/2389: Multiplex stream processing, e.g. multiplex stream encrypting - H04N 21/4345: {Extraction or processing of SI, e.g. extracting service information from an MPEG stream} - H04N 21/435: Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream - H04N 21/4382: {Demodulation or channel decoding, e.g. QPSK demodulation (analog front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002)} - H04N 21/4402: involving reformatting operations of video signals for household redistribution, storage or real-time display {(details of conversion of video standards at pixel level H04N7/01; video transcoding H04N19/40; adapting incoming signals to the display format of the display terminal G09G5/005; media handling at the source in data packet switching networks H04L65/764)} - H04N 21/816: {involving special video data, e.g 3D video} - H04N 21/84: Generation or processing of descriptive data, e.g. content descriptors {(systems specially adapted for using meta-information in broadcast systems H04H60/73)} - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract Transmission video data is obtained by performing photoelectric conversion on input video data having a level range of 0% to 100%*N (N is a number larger than 1). A container including a video stream obtained by encoding the transmission video data is transmitted. Information of an electro-optical conversion characteristic of each predetermined unit of the transmission video data is inserted into a layer of the video stream and/or a layer of the container. For example, a predetermined unit is a scene unit or a program unit. The operations make it possible to perform appropriate photoelectric conversion on HDR video data according to image content and transmit resulting data. ## Claims ### Claim 1 A transmission device, comprising: circuitry configured to perform photoelectric conversion on input data of a high dynamic range image to obtain transmission video data, transmit a container including a video stream obtained by encoding the transmission video data, and insert characteristic information for an electro-optical conversion of each predetermined unit of the transmission video data into a layer of the video stream and/or a layer of the container, the electro-optical conversion being an inverse of the photoelectric conversion. ### Claim 2 (depends on 1) The transmission device according to claim 1, wherein the predetermined unit is a scene unit or a program unit. ### Claim 3 (depends on 1) The transmission device according to claim 1, wherein the characteristic information for the electro-optical conversion is type information designating a type for the electro-optical conversion. ### Claim 4 (depends on 1) The transmission device according to claim 1, wherein the characteristic information for the electro-optical conversion is a parameter for obtaining a curve of the electro-optical conversion. ### Claim 5 (depends on 1) The transmission device according to claim 1, wherein the circuitry is further configured to select photoelectric conversion characteristic based on an analysis of the input data of the high dynamic range image. ### Claim 6 (depends on 1) The transmission device according to claim 1, wherein the high dynamic range image has a luminance level range of 0% to 100*N, where N is a number larger than 1. ### Claim 7 (depends on 6) The transmission device according to claim 6, wherein the luminance level of 100% corresponds to a luminance value 100 cd/m2. ### Claim 8 (depends on 1) The transmission device according to claim 1, wherein the photoelectric conversion is an opto-electronic conversion. ### Claim 9 A reception device, comprising: circuitry configured to receive a container of a predetermined format including a video stream obtained by encoding transmission video data, the transmission video data being obtained by performing photoelectric conversion on input data of a high dynamic range image, characteristic information for an electro-optical conversion of each predetermined unit of the transmission video data being inserted into a layer of the video stream and/or a layer of the container, the electro-optical conversion being an inverse of the photoelectric conversion, and process the video stream included in the container. ### Claim 10 (depends on 9) The reception device according to claim 9, wherein the circuitry is further configured to decode the video stream, obtain the transmission video data, perform the electro-optical conversion on the transmission video data based on the characteristic information for the electro-optical conversion of each predetermined unit to obtain output video data. ### Claim 11 (depends on 10) The reception device according to claim 10, wherein the characteristic information for the electro-optical conversion is type information designating a type for the electro-optical conversion, and the circuitry is further configured to perform the electro-optical conversion on the transmission video data based on a curve of the electro-optical conversion corresponding to the type designated by the type information. ### Claim 12 (depends on 10) The reception device according to claim 10, wherein the characteristic information for the electro-optical conversion is a parameter for obtaining a curve of the electro-optical conversion, and the circuitry is further configured to perform the electro-optical conversion on the transmission video data based on the curve of the electro-optical conversion obtained by the parameter. ### Claim 13 (depends on 12) The reception device according to claim 12, wherein the curve of the electro-optical conversion is obtained based on the parameter and maximum display level information, and a maximum level of the output video data is limited to the maximum display level information. ### Claim 14 (depends on 9) The reception device according to claim 9, wherein the circuitry is further configured to decode the video stream included in the container, obtain the transmission video data, and transmit the transmission video data and the characteristic information for the electro-optical conversion of each predetermined unit of the transmission video data to an external device in association with each other. ### Claim 15 (depends on 14) The reception device according to claim 14, wherein the circuitry is further configured to transmit the transmission video data to the external device through a differential signal using a predetermined number of channels, insert characteristic information for the electro-optical conversion into a blanking period of the transmission video data, and transmit the characteristic information for the electro-optical conversion to the external device. ### Claim 16 (depends on 9) The reception device according to claim 9, wherein the high dynamic range image has a luminance level range of 0% to 100*N, where N is a number larger than 1. ### Claim 17 (depends on 16) The reception device according to claim 16, wherein the luminance level of 100% corresponds to a luminance value 100 cd/m2. ### Claim 18 (depends on 9) The reception device according to claim 9, wherein the photoelectric conversion is an opto-electronic conversion. ### Claim 19 A display device, comprising: circuitry configured to receive transmission video data and characteristic information for an electro-optical conversion of each predetermined unit of the transmission video data associated with the transmission video data from an external device, the transmission video data being obtained by performing photoelectric conversion on input data of a high dynamic range image, perform the electro-optical conversion on the transmission video data based on the characteristic information for the electro-optical conversion of each predetermined unit, the electro-optical conversion being an inverse of the photoelectric conversion to obtain output video data. ### Claim 20 (depends on 19) The display device according to claim 19, wherein the characteristic information for the electro-optical conversion is type information designating a type for the electro-optical conversion, and the circuitry is further configured to perform the electro-optical conversion on the transmission video data based on a curve of the electro-optical conversion corresponding to the type designated by the type information. ### Claim 21 (depends on 19) The display device according to claim 19, wherein the characteristic information for the electro-optical conversion is a parameter for obtaining a curve of the electro-optical conversion, and the circuitry is further configured to perform the electro-optical conversion on the transmission video data based on the curve of the electro-optical conversion obtained by the parameter. ### Claim 22 (depends on 21) The display device according to claim 21, wherein the curve of the electro-optical conversion is obtained based on the parameter and maximum display level information, and a maximum level of the output video data is limited to the maximum display level information. ### Claim 23 (depends on 19) The display device according to claim 19, wherein the high dynamic range image has a luminance level range of 0% to 100*N, where N is a number larger than 1. ### Claim 24 (depends on 23) The display device according to claim 23, wherein the luminance level of 100% corresponds to a luminance value 100 cd/m2. ### Claim 25 (depends on 19) The display device according to claim 19, wherein the photoelectric conversion is an opto-electronic conversion. ### Claim 26 A transmission device, comprising: circuitry configured to transmit a container including a video stream including encoded data of transmission video data obtained by performing photoelectric conversion on input data of a high dynamic range image, and transmit a metafile including information for enabling a reception side to acquire the video stream, wherein characteristic information for an electro-optical conversion of each predetermined unit of the transmission video data is inserted into the video stream and/or the metafile and the electro-optical conversion is an inverse of the photoelectric conversion. ### Claim 27 (depends on 26) The transmission device according to claim 26, wherein the high dynamic range image has a luminance level range of 0% to 100*N, where N is a number larger than 1. ### Claim 28 (depends on 27) The transmission device according to claim 27, wherein the luminance level of 100% corresponds to a luminance value 100 cd/m2. ### Claim 29 (depends on 26) The transmission device according to claim 26, wherein the photoelectric conversion is an opto-electronic conversion.