Receiving Apparatus Early Alert Detection via Bit Subset Processing

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Solution Overview

Problem

Existing receiving apparatuses face delays in transmitting earthquake motion warning information due to the need to receive and process the entire 204-bit AC signal before outputting alert information, which can lead to delayed user notification during emergencies.

Innovation Solution

A receiving apparatus and method that allow early detection of alert information by processing a subset of bits, including the 3-bit structure identification and 13-bit synchronization fields, enabling immediate notification and activation of alert systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the receiving apparatus processes the entire 204-bit AC signal before outputting alert information, then the information processing is complete and accurate, but the response time is delayed

Engineering Contradiction:

Improveinformation processing completenessVSAvoidresponse time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The AC signal is divided into multiple bit segments, and the patent applies different processing thresholds to different segments. The structure identification field (bits 2-4) uses a lower threshold for early detection, while other fields have higher thresholds, allowing segmented processing that balances speed and accuracy

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent performs preliminary processing on the structure identification field and synchronization field before processing the complete AC signal. By detecting alert information in these initial bits, the system can prepare for full processing and output alerts sooner, reducing overall response time while maintaining completeness through subsequent verification

Inventive Principle:

Principle #10Preliminary action

2Speed

If the receiving apparatus processes only a subset of bits for early detection, then the response speed is improved, but the detection accuracy may be compromised

Engineering Contradiction:

Improvedetection speedVSAvoiddetection accuracy

Core Design Contradiction:

SpeedVSMeasurement precision

Solution Approach 1:

Different parts of the AC signal are processed with different quality levels. The structure identification field (bits 2-4) and synchronization field are processed with higher sensitivity for early detection, while other fields use standard processing thresholds, allowing speed improvement without compromising overall detection accuracy

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent applies partial action by processing only the most critical initial bits (structure identification and synchronization fields) for early alert detection, rather than requiring complete signal processing. This partial processing approach enables speed improvement while the system maintains the capability for complete verification if needed

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS8941492B2Receiving apparatus, information processing method and program

Publication Date: 2015.01.27 SATURN LICENSING LLC

AI summary

An information receiving apparatus that includes a receiver that receives an alert signal including a predetermined number of bits, and a controller that detects that the alert signal includes alert information by processing a subset of the predetermined number of bits of the alert signal, and outputs an indication corresponding to the detection.