Intercom system with noise suppression

By using a microphone device that combines multiple microphone capsules with electronic components on the printing press, along with channel separation and electronic noise suppression algorithms, the problems of interference noise and echo in voice communication between printing press call stations were solved, achieving high-quality voice transmission.

CN120915880APending Publication Date: 2025-11-07HEIDELBERGER DRUCKMASCHINEN AG
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Patent Information

Application Number
CN202510580869.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-05-07
Filing Date
2025-05-07
Publication Date
2025-11-07

AI Technical Summary

Technical Problem

In the existing technology, the two-way voice communication between call stations on printing presses suffers from interference noise and echo problems, especially in high-noise environments, where voice quality is difficult to guarantee.

Method used

A microphone device that combines multiple microphone pouches with electronic components achieves clear transmission of speech signals through channel separation and electronic noise suppression algorithms, combined with acoustic echo compensation algorithms.

Benefits of technology

It significantly improves the voice quality between call stations on the printing press, reduces interference noise and echo, improves voice intelligibility, and enhances communication performance in different acoustic environments.

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Abstract

The invention relates to a communication device for simultaneous two-way voice communication between at least two call stations (3) on a printing substrate processing machine, the call stations (3) being connected to each other via a bus system (4). The invention is characterized in that each calling station (3) has at least one loudspeaker (2) and one microphone device (1) with a plurality of microphone pockets (6) and one printed circuit board (8) with electronic components for improving speech intelligibility during speech communication between the calling stations (3).
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Citation Information

Patent Citations

  • Device for operating print substrate processing machines in graphic industry, has computer which stays in connection with input devices and output devices by bus system

    DE102007058708A1