Smartwatch Tactile Alerts for Identifying Notification Content

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Solution Overview

Problem

Existing smartwatches that use vibrations for notification alerts do not allow the wearer to determine the nature of the notification message without consulting the watch dial, causing inconvenience and disruption.

Innovation Solution

A method and watch design that uses a tactile rendering interface with individually controllable vibrating elements to convey descriptive alerts through tactile sensations, allowing the wearer to identify notification content without sound, by processing notification data to select appropriate tactile signals based on predefined criteria.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If audible signals are used for notification alerts, then the wearer can be alerted to the receipt of messages, but it causes annoyance when it disturbs the silence in places where it is essential

Engineering Contradiction:
Improveauditory disturbanceVSAvoidnotification effectiveness
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The patent replaces the acoustic alert system with a tactile alert system using a vibrating interface. The vibrating interface generates mechanical vibrations that can be felt by the wearer through the watch body, substituting the auditory notification mechanism while maintaining the alert function without causing auditory disturbance in silent environments

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the notification parameter from acoustic intensity to vibration characteristics. By varying vibration frequency, amplitude, and pattern, the system conveys different notification information through tactile sensations, allowing effective communication without auditory output

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If vibrations are used as notification alerts, then auditory disturbance is avoided, but the wearer cannot determine the nature of the notification message based solely on the vibrations

Engineering Contradiction:
Improveauditory disturbanceVSAvoidnotification content information
Core Design Contradiction:
Object-affected harmful factorsVSLoss of information

Solution Approach 1:

The patent segments the vibration interface into multiple independently controllable vibrating elements arranged in specific patterns. Each element can be activated separately or in combination, creating distinct vibration patterns that encode different notification types, priorities, and content information, allowing the wearer to distinguish between different messages through tactile feedback alone

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies different vibration characteristics to different locations on the watch body. Specific vibrating elements are activated based on the notification type, creating localized vibration patterns that convey information about the message nature. The spatial distribution and intensity of vibrations at different locations provide additional information dimensions for the wearer to interpret notification content

Inventive Principle:
Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables discreet and silent notification alerts that convey the nature and content of messages through tactile sensations, enhancing user experience by providing information without auditory disturbance.

Implementation Method 1

a tactile rendering interface with individually controllable vibrating elements to convey descriptive alerts through tactile sensations

Methodology Applied
Scientific EffectMechanical vibration: Vibration

Data Source

PatentEP3650959B1Method for distributing a descriptive alert of a notification message
Publication Date: 2025.12.24 TISSOT SA
  • EP3650959B1 patent drawingFigure 1~2

AI summary

The invention relates to a method of disseminating a descriptive alert of a notification message to a wearer of a watch (1), the method comprising the following steps: - receiving (10) by a processing unit (2) of the watch (1) information data including a notification message relating to the identification of an event concerning a function of the watch (1), and - sending (14) a descriptive alert signal relating to said received information data to a touch rendering interface (3) of the watch (1), said interface (3) being configured to transmit said descriptive alert to the wearer of the watch (1).