Split-memory echo canceller

Details Split-memory echo canceller Split-memory echo canceller

H - Electricity

04

B

379/64, 340/72

H04B 15/00 (2006.01) H04B 3/23 (2006.01)

Patent

CA 1250035

SPLIT-MEMORY ECHO CANCELLER Abstact of the Disclosure An echo canceller, for use in a digital transmission system, has two or more memory sections instead of one large memory. Each memory section is addressed by a part only of the outgoing signal word or history. Also, each memory section stores a partial echo estimate which comprises a part of the total echo estimate, which is obtained by summing the partial echo estimates. Such a "split" memory significantly reduces memory requirements. (i)

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