US 9,813,741 B2
Controller, control method, computer program, and video transmission system
Masayuki Imanishi, Tokyo (JP); Masaaki Shino, Kanagawa (JP); Yoshiyuki Kunito, Kanagawa (JP); and Yasuto Masuda, Kanagawa (JP)
Assigned to SONY CORPORATION, Tokyo (JP)
Appl. No. 14/780,191
Filed by SONY CORPORATION, Tokyo (JP)
PCT Filed Mar. 27, 2014, PCT No. PCT/JP2014/058897
§ 371(c)(1), (2) Date Sep. 25, 2015,
PCT Pub. No. WO2014/162981, PCT Pub. Date Oct. 9, 2014.
Claims priority of application No. 2013-079393 (JP), filed on Apr. 5, 2013.
Prior Publication US 2016/0044342 A1, Feb. 11, 2016
Int. Cl. H04N 7/173 (2011.01); H04N 21/2385 (2011.01); H04N 21/262 (2011.01); H04N 21/6371 (2011.01); H04N 21/6405 (2011.01); H04N 21/2343 (2011.01); H04N 21/242 (2011.01); H04N 21/43 (2011.01); H04N 21/61 (2011.01)
CPC H04N 21/2385 (2013.01) [H04N 21/23439 (2013.01); H04N 21/242 (2013.01); H04N 21/262 (2013.01); H04N 21/4307 (2013.01); H04N 21/6125 (2013.01); H04N 21/6371 (2013.01); H04N 21/6405 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A controller comprising:
circuitry configured to:
in the event that an instruction for a receiving device receiving a first video stream transmitted via IP multicast is received, acquire information on a status of a network topology and a transmitted video stream and reserve a network bandwidth for transmitting a second video stream in addition to the first video stream; and
send to the receiving device, the instruction to receive the second video stream via a network of which the network bandwidth is reserved,
wherein the instruction is for the receiving device to change from receiving the first stream to receiving the second stream, and
wherein the network bandwidth for transmitting the second video stream is reserved before the receiving device sends a request for receiving the second video stream.