Memory management methods and apparatus for digital telephone an

Details Memory management methods and apparatus for digital telephone an Memory management methods and apparatus for digital telephone an

1990-10-04

1992-11-10

Dwyer, James L.

Telephonic communications

Audio message storage, retrieval, or synthesis

Multilingual system or operation

379 67, 379 89, H04M 164

Patent

active

051630826

ABSTRACT:
A digital memory used by a digital telephone answering device to record messages, a method by which vacant memory space created by the deletion of a message interlying two saved messages is recovered for future message recording use. Available vacated memory is transferred to the top of memory while saved messages are moved to form a contiguous block in lower memory. The location of messages in the digital memory, and save/delete flag, are stored in an entry table for reference and memory management.

REFERENCES:
patent: 4075694 (1978-02-01), Ericsson
patent: 4794638 (1988-12-01), Millett
patent: 4821311 (1989-04-01), Hashimoto

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