# US 2014/0196159 A1 · System and method for controlling access to protected content > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0196159 A1 - Document ID: US20140196159A1 - Status: Published application - Kind: A1 - Application number: 14/129,381 - Filed: 2011-10-28 - Published: 2014-07-10 - Earliest claimed: 2011-06-30 - Assignees: Intel Corporation - Inventors: Jayant Mangalam-Palli; Rajesh Banginwar; Venkat Gokulrangan - Web page: https://patentgrep.com/patent/US20140196159A1 ## CPC - G06F 21/10: Protecting distributed programs or content, e.g. vending or licensing of copyrighted material (protection in video systems or pay television H04N7/16) {; Digital rights management [DRM]} - G06F 21/72: in cryptographic circuits - G06F 21/85: interconnection devices, e.g. bus-connected or in-line devices - H04N 21/4112: {having fewer capabilities than the client, e.g. thin client having less processing power or no tuning capabilities} - H04N 21/4402: involving reformatting operations of video signals for household redistribution, storage or real-time display {(details of conversion of video standards at pixel level H04N7/01; video transcoding H04N19/40; adapting incoming signals to the display format of the display terminal G09G5/005; media handling at the source in data packet switching networks H04L65/764)} - H04N 21/4405: involving video stream decryption - H04N 21/44231: {Monitoring of peripheral device or external card, e.g. to detect processing problems in a handheld device or the failure of an external recording device (configuring of peripheral devices in general G06F9/4411; reporting information sensed by appliance or service execution status of appliance services in a home automation network H04L12/2823; monitoring the status of connected device in data switched networks H04L43/0817)} - H04L 63/1441: {Countermeasures against malicious traffic (countermeasures against attacks on cryptographic mechanisms H04L9/002)} - H04L 65/612: for unicast - H04L 2463/102: applying security measure for e-commerce - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A receiver includes a first interface to receive content, a second interface to be coupled to a device, and a processor to determine whether the device is a compliant device and to prevent decryption of at least a portion of the content received through the first interface when the device is determined to be a non-compliant device. ## Claims ### Claim 1 An apparatus comprising: a first interface to receive content; a second interface to be coupled to a device; and a processor to determine whether the device is a compliant device and to prevent decryption of at least a portion of the content received through the first interface when the device is determined to be a non-compliant device. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein: at least the portion of the content is subject to a type of digital copyright protection, and the processor is to determine the device to be non-compliant with the type of digital copyright protection. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein: at least the portion of the content is in a high-definition video format, and the processor is to determine the device is non-compliant with the high-definition video format. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein the processor is to prevent decryption of the content before any portion of the content is decrypted. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein: the processor is to prevent decryption of a second portion of the content after a first portion of the content is decrypted, and the first portion of the content is decrypted before the processor is to determine that the device is a non-compliant device. ### Claim 6 (depends on 1) The apparatus of claim 1, further comprising: a power manager coupled to the processor, wherein the power manager is to send a signal to the processor indicative of the coupling of the device and wherein the processor is to determine that the device is a non-compliant device after receiving the signal from the power manager. ### Claim 7 (depends on 1) The apparatus of claim 1, further comprising: a controller to detect the coupling between the second interface and the device, wherein the processor is to determine that the device is a non-compliant device after the controller is to detect the coupling between the second interface and the non-compliant device. ### Claim 8 (depends on 1) The apparatus of claim 1, wherein the second interface is coupled to the device over a wired link. ### Claim 9 (depends on 1) The apparatus of claim 1, wherein the second interface is coupled to the device over a wireless link. ### Claim 10 (depends on 1) The apparatus of claim 1, wherein the processor is to convert at least the portion of the content to a non-compliant format after the device is determined to be a non-compliant device, and wherein at least the portion of the content is to be produced through an output device in the non-compliant format. ### Claim 11 (depends on 1) The apparatus of claim 1, wherein the processor is to convert at least the portion of the content to a non-compliant format after the device is determined to be a non-compliant device, and wherein at least the portion of the content is to be sent to the non-compliant device through the second interface in the non-compliant format. ### Claim 12 A method comprising: receiving content through a first interface; detecting coupling of a device to a second interface; determining the device to be a non-compliant device; and preventing decryption of at least a portion of the content received through the first interface when the device is determined to be said non-compliant device, wherein the first and second interfaces are included within a same receiver. ### Claim 13 (depends on 12) The method of claim 12, wherein: at least the portion of the content is subject to a type of digital copyright protection, and the device is determined to be non-compliant with the type of digital copyright protection. ### Claim 14 (depends on 12) The method of claim 12, wherein: at least the portion of the content is in a high-definition video format, and the device is determined to be non-compliant with the high-definition video format. ### Claim 15 (depends on 12) The method of claim 12, wherein said preventing includes: preventing decryption of the content before any portion of the content is decrypted. ### Claim 16 (depends on 12) The method of claim 12, wherein said preventing includes: preventing decryption of a second portion of the content after a first portion of the content is decrypted, wherein the first portion of the content is decrypted before the device is determined to be a non-compliant device. ### Claim 17 (depends on 12) The method of claim 12, wherein the second interface is coupled to the device over a wired link. ### Claim 18 (depends on 12) The method of claim 12, wherein the second interface is coupled to the device over a wireless link. ### Claim 19 (depends on 12) The method of claim 12, further comprising: converting at least the portion of the content to a non-compliant format after the device is determined to be said non-compliant device; and producing at least the portion of the content through an output device in the non-compliant format. ### Claim 20 (depends on 12) The method of claim 12, further comprising: converting at least the portion of the content to a non-compliant format after the device is determined to be said non-compliant device, and sending at least the portion of the content through the second interface in the non-compliant format. ### Claim 21 A device comprising: first logic to receive a first signal on content to be received from a first interface; second logic to receive a second signal indicative of a coupling of an external device to a second interface; and third logic coupled between the first interface and the second interface, wherein the third logic is to determine whether the external device is a non-compliant device after receipt of at least the second signal and to prevent decryption of at least a portion of the content when the device is determined to be a non-compliant device. ### Claim 22 (depends on 21) The device of claim 21, wherein the first signal includes at least the portion of the content. ### Claim 23 (depends on 21) The device of claim 21, wherein the third logic executes a program to determine whether the external device is said non-compliant device or to prevent decryption of at least the portion of the content, or both. ### Claim 24 (depends on 21) The device of claim 21, wherein: at least the portion of the content is subject to a type of digital copyright protection, and the third logic is to determine the device to be non-compliant with the type of digital copyright protection. ### Claim 25 (depends on 21) The device of claim 21, wherein: at least the portion of the content is in a high-definition video format, and the third logic is to determine the device is non-compliant with the high-definition video format. ### Claim 26 (depends on 21) The device of claim 21, wherein the third logic is to prevent decryption of the content before any portion of the content is decrypted. ### Claim 27 (depends on 21) The device of claim 21, wherein the third logic is to prevent decryption of a second portion of the content after a first portion of the content is decrypted, and wherein the first portion of the content is decrypted before the third logic is to determine that the external device is a non-compliant device. ### Claim 28 A computer-readable medium storing a program for controlling a receiver, the program comprising: first code to determine that a device to be coupled the receiver is a non-compliant device; second code to prevent decryption of at least a portion of the content received through an interface when the device is determined to be a non-compliant device. ### Claim 29 (depends on 28) The computer-readable medium of claim 28, wherein at least the portion of the content is subject to a type of digital copyright protection. ### Claim 30 (depends on 28) The computer-readable medium of claim 28, wherein at least the portion of the content is in a high-definition video format.