Tactile Signal Decoding with Segment-Based Low-Latency Encoding

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Solution Overview

Problem

Existing tactile signal transmission techniques face challenges in maintaining the quality of tactile sensations while minimizing transmission delay, especially in wireless connections, which can lead to incongruity in the user's experience due to the increased data amount and potential delays.

Innovation Solution

A decoding device and method that encode tactile signals using multiple methods, where a simple tactile encoding method is applied to the beginning segment and a rich encoding method to other segments, allowing for efficient decoding and transmission, maintaining the quality of the tactile experience with reduced delay.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a rich tactile encoding method is used to enhance the reality feeling of tactile sensation, then the quality of tactile experience is improved, but the data amount increases and transmission delay occurs

Engineering Contradiction:
Improvequality of tactile sensationVSAvoidtransmission delay
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The tactile signal is divided into multiple segments, with the first segment encoded using a simple encoding method and subsequent segments encoded using a rich encoding method. This segmentation allows the system to use different encoding complexities for different parts of the signal, reducing overall data amount while maintaining quality for critical portions.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different encoding methods are applied to different segments of the tactile signal based on their specific characteristics. The first segment uses simple encoding sufficient for its nature, while subsequent segments use rich encoding to capture detailed tactile information, optimizing the balance between quality and data efficiency locally.

Inventive Principle:
Principle #3Local quality

2Manufacturing precision

If the data amount of tactile signal is increased to enhance reality feeling, then the quality of tactile experience is improved, but the network transmission efficiency deteriorates

Engineering Contradiction:
Improvequality of tactile sensationVSAvoidnetwork transmission efficiency
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The tactile signal transmission is segmented into multiple encoded data pieces, where only the necessary information is transmitted in each segment. This reduces the total data amount requiring network transmission while maintaining the quality of tactile sensation through selective rich encoding in subsequent segments.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of applying rich encoding to the entire tactile signal, the system uses simple encoding for the first segment and applies rich encoding only to subsequent segments where detailed information is more critical. This partial application of complex encoding reduces overall data amount while maintaining quality where it matters most.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS11947723B2Decoding device, decoding method, and program
Publication Date: 2024.04.02 SONY GROUP CORP
  • US11947723B2 patent drawing
  • US11947723B2 patent drawing
  • US11947723B2 patent drawing

AI summary

Provided is a decoding device including a decoding unit configured to decode a plurality of pieces of encoded data on the basis of encoding method information that has been received, received bitstream data including the plurality of pieces of encoded data in which a plurality of segments of a tactile signal has been respectively encoded, in which the encoding method information includes information indicating in which encoding method of a plurality of encoding methods the respective segments of the tactile signal have been encoded, the plurality of encoding methods includes a simple tactile encoding method corresponding to a simple tactile signal related to a beginning segment of the tactile signal, the plurality of pieces of encoded data includes simple tactile encoded data in which the simple tactile signal has been encoded in the simple tactile encoding method, and the decoding unit decodes the simple tactile encoded data, in a case where the encoding method information indicates the simple tactile encoding method.