# US 2016/0366107 A1 · Providing security to video frames > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0366107 A1 - Document ID: US20160366107A1 - Status: Published application - Kind: A1 - Application number: 15/179,870 - Filed: 2016-06-10 - Published: 2016-12-15 - Earliest claimed: 2015-06-12 - Assignees: ARRIS Enterprises LLC - Applicants: ARRIS Enterprises LLC - Inventors: Polly Tang; Rafie Shamsaasef; Paul Moroney - Web page: https://patentgrep.com/patent/US20160366107A1 ## CPC - H04L 63/0428: {wherein the data content is protected, e.g. by encrypting or encapsulating the payload} - H04L 9/065: {Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3} - H04L 65/70: Media network packetisation - H04L 67/02: based on web technology, e.g. hypertext transfer protocol [HTTP] - H04N 19/00: Methods or arrangements for coding, decoding, compressing or decompressing digital video signals - H04N 21/4408: involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network - H04N 21/6125: {involving transmission via Internet (transmission by internet of broadcast information H04H60/82)} - H04N 21/8456: {by decomposing the content in the time domain, e.g. in time segments} - H04N 21/85406: {involving a specific file format, e.g. MP4 format} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A method and system are provided for processing a media stream including at least a portion of a media program in a player executed by a computer. The player is configured for: (a) receiving the media stream, wherein the media stream is comprised of one or more chunks; (b) subdividing the chunks into one or more packets, wherein one or more of the packets include video data; (c) obfuscating or de-obfuscating at least some of the video data; and (d) concatenating the video data into one or more frames for playback by the player. ## Claims ### Claim 1 A method of processing a media program, comprising: processing a media stream comprising at least a portion of the media program in a player executed by a computer, the player operable for: (a) receiving the media stream, wherein the media stream is comprised of one or more chunks; (b) subdividing the chunks into one or more packets, wherein one or more of the packets include video data; (c) obfuscating or de-obfuscating at least some of the video data; and (d) concatenating the video data into one or more frames for playback by the player. ### Claim 2 (depends on 1) The method of claim 1, wherein the frame is stored in a queue after the video data is concatenated, prior to being decoded and rendered by the player. ### Claim 3 (depends on 2) The method of claim 2, wherein the video data is de-obfuscated when the frame is retrieved from the queue prior to being decoded and rendered by the player. ### Claim 4 (depends on 1) The method of claim 1, wherein the video data is obfuscated or de-obfuscated before being concatenated. ### Claim 5 (depends on 1) The method of claim 1, wherein the video data is obfuscated or de-obfuscated after being concatenated. ### Claim 6 (depends on 1) The method of claim 1, wherein the chunks in the media stream are obfuscated before being transmitted to the player. ### Claim 7 (depends on 1) The method of claim 1, wherein the chunks in the media stream are encrypted before being transmitted to the player. ### Claim 8 (depends on 1) The method of claim 1, wherein the step of obfuscating or de-obfuscating is performed using an n-tuple bijection function and n is configurable. ### Claim 9 (depends on 1) The method of claim 1, wherein the step of obfuscating or de-obfuscating comprises obfuscating or de-obfuscating all of the video data. ### Claim 10 (depends on 1) The method of claim 1, wherein the step of obfuscating or de-obfuscating comprises obfuscating or de-obfuscating the video data using an odd and even approach where only the video data in an odd or even numbered frame is obfuscated or de-obfuscated. ### Claim 11 (depends on 1) The method of claim 1, wherein the step of obfuscating or de-obfuscating comprises obfuscating or de-obfuscating the video data using a skip and select approach where only the video data in one or more of the packets is obfuscated or de-obfuscated. ### Claim 12 (depends on 11) The method of claim 11, wherein only a portion of the video data in one or more of the packets is obfuscated or de-obfuscated. ### Claim 13 (depends on 11) The method of claim 11, wherein the step of obfuscating or de-obfuscating is performed using an n-tuple bijection function, n is a periodicity of obfuscation, and only a first occurrence of a packet with a data length divisible by the periodicity of obfuscation is obfuscated or de-obfuscated. ### Claim 14 (depends on 13) The method of claim 13, wherein a header of the packet is de-obfuscated to determine whether the packet has a data length divisible by the periodicity of obfuscation. ### Claim 15 (depends on 1) The method of claim 1, wherein the step of obfuscating or de-obfuscating comprises obfuscating or de-obfuscating the video data using a caption handling with skip and select approach where only the video data in a first set of packets is de-obfuscated so that caption data is extracted. ### Claim 16 (depends on 15) The method of claim 15, wherein the step of obfuscating or de-obfuscating is performed using an n-tuple bijection function, n is a periodicity of obfuscation, and only a first occurrence of a packet following the caption data with a data length divisible by the periodicity of obfuscation is obfuscated or de-obfuscated. ### Claim 17 (depends on 15) The method of claim 15, wherein only a packet identified by a pseudo-random number is obfuscated or de-obfuscated. ### Claim 18 (depends on 15) The method of claim 15, wherein packets not containing video data are de-obfuscated. ### Claim 19 (depends on 15) The method of claim 15, wherein packets not solely containing video data are de-obfuscated. ### Claim 20 A system for processing a media program, comprising: a player, executed by a computer, for processing a media stream comprising at least a portion of the media program, the player operable for: (a) receiving the media stream, wherein the media stream is comprised of one or more chunks; (b) subdividing the chunks into one or more packets, wherein one or more of the packets include video data; (c) obfuscating or de-obfuscating at least some of the video data; and (d) concatenating the video data into one or more frames for playback by the player.