Method for the time-correlated transmission of a control signal and a radio program signal

US5740519A · kind A · utility

Assignee

• Telefunken · DE

Inventors

• Robert Einsel · Celle, DE
• Klaus Goken · Celle, DE
• Hans Gessler · Villingen-Schwenningen, DE

Key dates

• Filing date: Feb 20, 1997
• Grant date: Apr 14, 1998
• Expiry date: Feb 20, 2017

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L7/0083
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

The invention involves a method of transmitting a control signal that is synchronized in time with a radio program signal. The control signal may be used, for example, in a receiver to restore dynamic range reduction that occurred at the transmitter. The method includes the steps of forming a first supplemented signal by inserting the control signal and a first time-reference signal into a data stream of a radio data signal such as an RDS signal. A second supplemented signal is formed by adding a second time-reference signal to the radio program signal. The first and second time-reference signals are correlated in time. The first and second supplemented signals are transmitted.