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Design Example01:23

Design Example

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The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
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Updated: May 24, 2025

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    MPEG has developed a new standard for coding haptic data, enabling advanced haptic applications in mobile, gaming, and virtual reality. This haptics coding standard is expected to be finalized in 2024.

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    Area of Science:

    • Multimedia Coding and Compression
    • Human-Computer Interaction
    • Signal Processing

    Background:

    • The Moving Picture Experts Group (MPEG) initiated a project in May 2021 to standardize haptic data coding.
    • Existing methods lacked a unified framework for delivering haptic signals across diverse applications.

    Purpose of the Study:

    • To introduce the outcomes of the initial phase of the MPEG haptics coding standard development.
    • To establish a generic framework for representing and coding haptic data.

    Main Methods:

    • Definition of a baseline reference design for haptic data representation.
    • Development of a software implementation for the coding of haptic signals.
    • Analysis of codec architecture and compression efficiency.

    Main Results:

    • A comprehensive framework for haptic signal delivery has been defined.
    • The standard supports current and future haptic applications in mobile, gaming, and virtual reality.
    • Initial performance assessments indicate effective compression efficiency.

    Conclusions:

    • The first phase of the MPEG haptics coding standard provides a robust foundation for haptic technology.
    • The finalized ISO international standard is anticipated in 2024, paving the way for widespread adoption.
    • This standard will significantly advance the development and integration of haptic feedback.