Digital sound broadcasting using a dedicated control channel

Details Digital sound broadcasting using a dedicated control channel Digital sound broadcasting using a dedicated control channel

1995-05-26

1998-11-17

Chin, Wellington

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

375260, 370524, 370525, 455 42, 455102, 455103, H04H 500, H04H 100

Patent

active

058387994

ABSTRACT:
A method and apparatus for transmitting digital sound is disclosed. The method contemplates transmitting a digital radio signal (such as an FM band signal) over a plurality of sub-channels subject to some constraints on the digital signal power. A control sub-channel, sometimes referred to as an auxiliary overhead channel is used to transmit control information which is interpreted by the receiver to identify the location and potentially the mode of the digital signals.

REFERENCES:
patent: 4314376 (1982-02-01), Williams
patent: 4601045 (1986-07-01), Lubarsky
patent: 4914651 (1990-04-01), Lusignan
patent: 5148272 (1992-09-01), Acampora et al.
patent: 5289496 (1994-02-01), Nakagawa et al.
patent: 5291289 (1994-03-01), Hulyalkar
patent: 5293633 (1994-03-01), Robbins
"Digital Sound Broadcast with Auxiliary Overhead Control", NAB 1993 Broadcast Engineering Conference Proceedings, pp. 243-248.

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