Broadcast receiver

Details Broadcast receiver Broadcast receiver

1993-11-05

1997-10-28

Coles, Sr., Edward L.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

381106, H04H 500

Patent

active

056824327

ABSTRACT:
In a broadcast receiver, a dynamic compression of the signal is switched on or off in dependence on whether such a compression has been carried out at the transmitting end. An identification bit is transmitted for identifying this compression at the transmitter end. The object is to create a broadcast receiver which effects automatic switching-on or switching-off of an amplitude compression but manages without a transmitted identification bit. The received audio signal is applied to a signal analysing circuit which determines the scale factors of the signal and generates switching voltages dependent on the scale factors. The present invention has particular applicability for broadcast receivers in a motor vehicle or with subsequent signal recording.

REFERENCES:
patent: 4025723 (1977-05-01), Blackledge
patent: 4701953 (1987-10-01), White
patent: 4809328 (1989-02-01), Usui et al.
patent: 5278912 (1994-01-01), Waldhauer

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