Digital Video Camera Internal Data Sample Compression

Solution Overview

Problem

Conventional digital cameras face high power consumption and cost due to the need for large and expensive external memory to handle large amounts of image data, which increases bandwidth requirements and memory allocation.

Innovation Solution

Implementing a digital video camera with internal data sample compression using two encoders and a decoder to compress and decompress image data, reducing the need for external memory and lowering bandwidth consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If large external memory is used to accommodate image data, then bandwidth requirements are met, but power consumption and cost increase

Engineering Contradiction:

Improveimage data capacityVSAvoidpower consumption

Core Design Contradiction:

Quantity of substanceVSUse of energy by moving object

Solution Approach 1:

The system performs preliminary compression of image data in the buffer memory before it needs to be transferred to external memory or processed further. By compressing the data upfront, the system reduces the amount of data that requires storage and transfer, thereby lowering power consumption while maintaining the required image data capacity.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system changes the parameter of data density by transforming uncompressed image data into compressed data with reduced size. This parameter change allows the same amount of image information to be stored in less memory, reducing the need for large external memory chips and lowering associated power consumption.

Inventive Principle:

Principle #35Parameter changes

2Quantity of substance

If large external memory is used to accommodate image data, then bandwidth requirements are met, but cost increases

Engineering Contradiction:

Improveimage data capacityVSAvoidcost

Core Design Contradiction:

Quantity of substanceVSEase of manufacture

Solution Approach 1:

The system performs preliminary compression of image data in the buffer memory before it needs to be transferred to external memory or processed further. By compressing the data upfront, the system reduces the amount of data that requires storage and transfer, thereby lowering power consumption while maintaining the required image data capacity.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system changes the parameter of data density by transforming uncompressed image data into compressed data with reduced size. This parameter change allows the same amount of image information to be stored in less memory, reducing the need for large external memory chips and lowering associated power consumption.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If image data is transferred to external memory, then processing capacity is increased, but bandwidth consumption increases

Engineering Contradiction:

Improveprocessing capacityVSAvoidbandwidth consumption

Core Design Contradiction:

ProductivityVSLoss of energy

Solution Approach 1:

The system performs preliminary compression of image data in the buffer memory before it needs to be transferred to external memory or processed further. By compressing the data upfront, the system reduces the amount of data that requires storage and transfer, thereby lowering power consumption while maintaining the required image data capacity.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system extracts only the essential compressed data from the buffer memory for external processing or storage, rather than transferring the complete uncompressed data. This extraction approach reduces the data volume and associated bandwidth consumption while maintaining processing capacity for the compressed data.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS9013595B1Digital video camera with internal data sample compression

Publication Date: 2015.04.21 AMBARELLA INT LP

AI summary

An apparatus generally comprising a first encoder, a decoder and a second encoder is disclosed. The first encoder may be configured to generate a plurality of first compressed samples from a plurality of data samples of a picture. The data samples generally include a plurality of luminance samples and chrominance samples created internal to a digital video camera. The decoder may be configured to generate a plurality of reconstructed samples from the first compressed samples. The second encoder may be configured to generate a plurality of second compressed samples based on the reconstructed samples.