Process for simultaneous transmission of signals from N signal sources

US5509017A · kind A · utility

Assignee

• Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US

Inventors

• Karl-Heinz Brandenburg · Erlangen, DE
• Heinz Gerhauser · Waischenfeld, DE
• Dieter Seitzer · Erlangen, DE
• Thomas Sporer · Ergolding, DE

Key dates

• Filing date: Apr 29, 1994
• Grant date: Apr 16, 1996
• Expiry date: Apr 29, 2014

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04S3/00
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

A process for simultaneous transmission of signals from N signal sources via a corresponding number of transmission channels, in which the individual signals are divided into blocks and the blocks are transformed into spectral coefficients by transformation or filtering, the spectral coefficients undergoing a data reduction process. The blocks belonging to the individual signals are divided into sections. The respective current sections of all signals are processed simultaneously. The permissible interference for each section is determined utilizing a perception-specific model, and a request of currently required overall transmission capacity is calculated. The allotment of maximum transmission capacity at disposal for each individual signal is calculated from the overall transmission capacity at disposal and the currently required overall transmission capacity. Each signal is coded and transmitted with the thus determined capacity.