Patent ID: 9014258
Filing Date: 2015-04-21
Classification: H04N

Abstract:
1. A transmission device comprising: a communication unit that broadcasts content data to a plurality of reception devices and performs an information transmission to and an information reception from the plurality of reception devices; and a format determining unit that determines a transmission data format of the content data that is a transmission object to be broadcast by the communication unit, based on information, which is acquired from the plurality of reception devices via the communication unit, of a data format with which each of the plurality of reception devices are compatible, wherein the format determining unit creates a common list that is a list of the data format commonly compatible with the plurality of reception devices, based on the information, which is acquired from the plurality of reception devices, of the data format with which the plurality of reception devices is compatible, respectively, when the data format of the content data that is the transmission object is present in the common list, the format determining unit determines the data format as the transmission data format, and when the data format of the content data that is the transmission object is not present in the common list, the format determining unit determines a data format of a mandatory standard as the transmission data format, in which the common list includes at least one of (i) a number of compatible video data formats that are commonly compatible with the plurality of reception devices or (ii) a number of compatible audio data formats that are commonly compatible with the plurality of reception devices, in which the data format represents at least one of (i) a video data format or (ii) an audio data format, that each of the plurality of reception devices is compatible with during operation, and when the content data is video data, the common list for a video format created by the format determining unit represents (i) a common color format type or types, (ii) a common video format code type or types, and (iii) a common deep color mode type or types, each type within the common color format and the common video format code and the common deep color mode types being arranged in a respective predetermined priority order, so that when a respective video format having a respective priority higher than that of the video data that is the transmission object is present in the common list, the format determining unit determines that the respective video format with the respective higher priority is a transmission video format.