Fusion Chip Merging Camera Data Streams to Simplify PCB Layout
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Solution Overview
Problem
The existing image transmission architecture in electronic devices, such as mobile phones, faces challenges due to the large number of data transmission lines and connectors required for multiple camera modules, which complicates PCB layout and limits system optimization.
Innovation Solution
A multi-data transmission channel fusion apparatus and electronic device structure that includes multiple photosensitive chips connected to a fusion chip via individual data transmission channels, which converges the data streams into a high-speed convergent data stream and transmits it to a processing chip using a single data transmission channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple camera modules are directly connected to the processing chip using multiple data transmission lines and connectors, then the photographing performance requirement is met, but the PCB layout complexity increases and the system optimization space is limited
Solution Approach 1:
The patent merges multiple data transmission channels from multiple camera modules into a single unified transmission channel through the fusion chip. The fusion chip receives data streams from multiple photosensitive chips via separate data transmission channels, then converges these channels into one output channel that connects to the processing chip, thereby reducing the number of connectors and simplifying PCB layout while maintaining support for multiple camera modules
Solution Approach 2:
The fusion chip acts as an intermediary device between the multiple camera modules and the processing chip. It mediates the data transmission by receiving data from multiple sources, performing channel convergence, and forwarding the consolidated data stream to the processing chip, thus eliminating the need for direct multiple connections to the processing chip and reducing PCB complexity
2Quantity of substance
If multiple data transmission lines and connectors are used to connect multiple camera modules to the processing chip, then data transmission capability is maintained, but the number of pins required in the processing chip increases, leading to larger chip area
Solution Approach 1:
The fusion chip combines multiple data transmission channels into a single channel, so that instead of requiring multiple separate pins in the processing chip for each camera module, only one pin is needed to receive the converged data stream from the fusion chip, thereby significantly reducing the pin count and chip area requirements
Solution Approach 2:
The patent introduces a new dimensional layer in the data transmission architecture by inserting the fusion chip as an intermediate convergence point. This transforms the direct many-to-one connection requirement into a many-to-one-to-one structure, where multiple camera modules connect to the fusion chip, which then connects to a single processing chip pin, effectively reducing the dimensional complexity of connections at the processing chip level
Data Source
AI summary
A electronic device includes a plurality of first photosensitive chips, one first fusion chip, and one processing chip. Each first photosensitive chip is connected to the first fusion chip by a respective data transmission channel and is configured both to generate a MIPI protocol-based data stream and to transmit said data stream to the first fusion chip by the respective data transmission channel. The first fusion chip is connected to the processing chip by a data transmission channel and is configured to converge data streams received via a plurality of data transmission channels connected to the plurality of first photosensitive chips, to obtain a first high-speed convergent data, and to send the first high-speed convergent data to the processing chip. The processing chip is configured to receive the high-speed convergent data stream and obtain an image by using the received data stream.