Method and apparatus for controlling buffer overflow in a...

Details Method and apparatus for controlling buffer overflow in a... Method and apparatus for controlling buffer overflow in a...

2001-06-29

2008-08-12

Ghebretinsae, Temesghen (Department: 2611)

Pulse or digital communications

Pulse code modulation

C375S240030, C375S240120, C348S419100, C348S497000

Reexamination Certificate

active

07412004

ABSTRACT:
A method and apparatus are disclosed for controlling a buffer in a digital audio broadcasting (DAB) communication system. An audio encoder marks a frame as “dropped” whenever a buffer overflow might occur. Only a small number of bits are utilized to process a lost frame, thereby preventing the buffer from overflowing and allowing the encoder buffer-level to quickly recover from the potential overflow condition. The audio encoder optionally sets a flag that provides an indication to the receivers that a frame has been lost. If a “frame lost” condition is detected by a receiver, the receiver can optionally employ mitigation techniques to reduce the impact of the lost frame(s).

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