Communication device and communication method

摘要

One embodiment provides a communication device for transmitting a video to an external device through first to third transmission lines, the communication device including: a transmission module configured to transmit first color difference information and second color difference information concerned with adjacent two pixels through the first transmission line, to transmit first luminance information concerned with one of the two pixels through the second transmission line, and to transmit second luminance information concerned with the other of the two pixels through the third transmission line.

主权项

1. An electronic apparatus comprising:
a connection terminal to which an external device is connectable through an HDMI cable, the HDMI cable comprising channels 0, 1, and 2 defined under an HDMI standard; and at least one hardware processor to:
receive a 4K2K video comprising
a first pixel,a second pixel,a third pixel, anda fourth pixel,wherein the first pixel is adjacent to the second pixel, the second pixel is adjacent to the third pixel, and the third pixel is adjacent to the fourth pixel;generate a video of a 4:2:0 format from the 4K2K video by at least sampling, from the first pixel, the second pixel, the third pixel, and the fourth pixel in the 4K2K video,
(1) a first luminance value of the first pixel,(2) a second luminance value of the second pixel,(3) a third luminance value of the third pixel,(4) a fourth luminance value of the fourth pixel,(5) a first color difference value for all of the first pixel, the second pixel, the third pixel, and the fourth pixel, and(6) a second color difference value for all of the first pixel, the second pixel, the third pixel, and the fourth pixel; andtransmit the video of the 4:2:0 format to the external device using the channels 0, 1, and 2 of the HDMI cable, wherein the at least one hardware processor:
transmits the first color difference value and the second color difference value through the channel 0 of the HDMI cable;transmits the first luminance value, the second luminance value, the third luminance value, and the fourth luminance through the channels 1 and 2 of the HDMI cable;transmits the first luminance value, the second luminance value, and the first color difference value in the same cycle; andtransmits the third luminance value, the fourth luminance value, and the second color difference value in the same cycle.