US 11,843,832 B2
Broadcast receiving apparatus
Takuya Shimizu, Kyoto (JP); Kazuhiko Yoshizawa, Kyoto (JP); Yasunobu Hashimoto, Kyoto (JP); Nobuo Masuoka, Kyoto (JP); and Nobuaki Kabuto, Kyoto (JP)
Assigned to MAXELL, LTD., Kyoto (JP)
Filed by MAXELL, LTD., Kyoto (JP)
Filed on Jun. 15, 2022, as Appl. No. 17/840,796.
Application 17/840,796 is a continuation of application No. 17/236,031, filed on Apr. 21, 2021, granted, now 11,395,042.
Application 17/236,031 is a continuation of application No. 16/331,996, granted, now 11,019,399, issued on May 25, 2021, previously published as PCT/JP2017/030114, filed on Aug. 23, 2017.
Claims priority of application No. 2016-177312 (JP), filed on Sep. 12, 2016; application No. 2016-177430 (JP), filed on Sep. 12, 2016; application No. 2016-178172 (JP), filed on Sep. 13, 2016; application No. 2016-178241 (JP), filed on Sep. 13, 2016; application No. 2016-206543 (JP), filed on Oct. 21, 2016; application No. 2016-207443 (JP), filed on Oct. 24, 2016; application No. 2016-208361 (JP), filed on Oct. 25, 2016; application No. 2016-209319 (JP), filed on Oct. 26, 2016; application No. 2016-210678 (JP), filed on Oct. 27, 2016; application No. 2016-211795 (JP), filed on Oct. 28, 2016; application No. 2016-212509 (JP), filed on Oct. 31, 2016; application No. 2016-214010 (JP), filed on Nov. 1, 2016; application No. 2016-214928 (JP), filed on Nov. 2, 2016; and application No. 2016-215839 (JP), filed on Nov. 4, 2016.
Prior Publication US 2022/0312076 A1, Sep. 29, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 21/4627 (2011.01); H04N 5/913 (2006.01); H04H 60/18 (2008.01); H04N 5/775 (2006.01); H04N 21/4363 (2011.01); H04N 21/4402 (2011.01); H04N 21/4405 (2011.01)
CPC H04N 21/4627 (2013.01) [H04H 60/18 (2013.01); H04N 5/775 (2013.01); H04N 5/913 (2013.01); H04N 21/43635 (2013.01); H04N 21/4405 (2013.01); H04N 21/440263 (2013.01); H04N 2005/91328 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A broadcast receiving apparatus configured to receive contents, the broadcast receiving apparatus comprising:
a receiver configured to receive the contents via broadcast;
a LAN interface through which the contents received by the receiver are outputted;
an infrared communication interface; and
a controller configured to control an output state of the contents from the LAN interface,
wherein the receiver is configured to receive the contents via the broadcast without receiving any of an L2-Only flag of DTCP2 content protection, an HDR flag of DTCP2 content protection, and an SDO flag of DTCP2 content protection via the broadcast,
wherein the controller is configured to determine an output state of the contents from the LAN interface including an output state of each of an L2-Only flag of DTCP2 content protection, an EI flag of DTCP2 content protection, an HDR flag of DTCP2 content protection, and an SDO flag of DTCP2 content protection for the contents in accordance with a combination of control information indicating a copy control state of the contents, control information for specifying whether protection is required or not when the contents are to be outputted, information indicating resolution of video of the contents, and information indicating transmission characteristics of the video of the contents, which are received by the receiver together with the contents,
wherein the controller is configured to execute a control to apply output protection to the contents when the contents are outputted from the LAN interface in a case where the control information indicating the copy control state of the contents indicates that there is copy restriction or in a case where the control information for specifying whether protection is required or not when the contents are to be outputted indicates that protection is required on output,
wherein the controller is configured to change a level of the output protection in accordance with a combination of the information indicating resolution of the video of the contents and the information indicating transmission characteristics of the video of the contents,
wherein each of the L2-Only flag of DTCP2 content protection, the EI flag of DTCP2 content protection, the HDR flag of DTCP2 content protection, and the SDO flag of DTCP2 content protection outputted from the LAN interface is a 1 bit flag,
wherein the controller is configured to determine combinations of values indicated by the respective bits of the L2-Only flag of DTCP2 content protection, the EI flag of DTCP2 content protection, the HDR flag of DTCP2 content protection, and the SDO flag of DTCP2 content protection used for the contents outputted from the LAN interface of the broadcast receiving apparatus, the number of the combinations used by the broadcast receiving apparatus is less than 16 combinations by keeping a value of the HDR flag of DTCP2 content protection set to 0 for all the contents protected by DTCP2 content protection including contents having a resolution of the video that is over 1920×1080 pixels and contents having a resolution of the video that is 1920×1080 pixels or less, and
wherein the LAN interface is configured to be connected to a local area network.