Integrated Circuit Encoding Encryption Hardware
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Solution Overview
Problem
Conventional HDCP2 encryption methods separate encoding and encryption processes, leading to performance, power consumption, security, and latency issues due to hardware and software complexities, as well as additional memory reads/writes and buffer allocations.
Innovation Solution
Integration of encoding and encryption into a single hardware integrated circuit component, allowing for simultaneous encoding and encryption within one application program interface call, reducing memory reads/writes and software complexity, and enhancing security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If encoding and encryption are performed in separate hardware units, then security is maintained through dedicated encryption module, but performance decreases and power consumption increases due to additional memory reads/writes
Solution Approach 1:
The patent combines the encoding and encryption functions into a single integrated hardware unit. The encoder directly passes the encoded bitstream to the encryption module without writing to intermediate memory buffers, eliminating unnecessary memory read/write operations while maintaining security through dedicated encryption processing
2Device complexity
If encoding and encryption are performed in separate hardware units, then modular design is achieved, but latency increases due to extra memory read/write operations
Solution Approach 1:
The encoder performs the encoding operation first and directly passes the resulting bitstream to the encryption module in the same hardware unit. This preliminary encoding action is followed immediately by encryption without intermediate memory storage, reducing the total time required for the encoding-encryption process
3Device complexity
If separate hardware units are used for encoding and encryption, then functional separation is achieved, but power consumption increases due to additional memory operations
Solution Approach 1:
The patent merges the encoding and encryption functions into a single integrated hardware unit with direct internal data paths. This eliminates the need for separate memory read/write operations that would be required if the functions were implemented in separate hardware units, thereby reducing power consumption while maintaining functional separation through dedicated processing modules within the unified hardware
4Reliability
If encoding and encryption are done in separate hardware units, then dedicated security processing is achieved, but device complexity increases due to multiple software calls and buffer allocations
Solution Approach 1:
The patent integrates encoding and encryption into a single hardware unit that can be controlled through a unified software interface. This integration reduces software complexity by eliminating the need for separate software calls and buffer management for encoding and encryption operations, while the hardware internally maintains dedicated security processing through its integrated encryption module
Data Source
AI summary
Encryption and encoding of video and/or audio may be implemented on an integrated circuit before being transmitted wirelessly to a remote adapter for display.