Patent ID: 6252945
Filing Date: 2001-06-26
Classification: H04M

Abstract:
A method for recording a digitized audio signal of messages in a telephone answering machine, which comprises:a telephone answering machine writing in a digital input signal message during a predetermined first time segment beginning at a start of the input signal message resulting in a written data signal;before writing in the digital input signal message during the first time segment, the telephone answering machine deriving the digital input signal message by reading out a stored digitized audio signal from a storage medium;selecting a predetermined first data compression rate, a predetermined second data compression rate, and a predetermined third data compression rate based on the digital input signal message;compressing the written data signal with a compression algorithm of the telephone answering machine at the predetermined first data compression rate greater than or equal to 1 resulting in compressed data;storing the compressed data in a storage medium for storing digital data in the telephone answering machine;the telephone answering machine writing in the remainder of the digital input signal message after the predetermined first time segment resulting in a further written data signal;compressing the further written data signal with the compression algorithm of the telephone answering machine at the predetermined second data compression rate resulting in further compressed data, the second data compression rate being greater than the first data compression rate;storing the further compressed data in the storage medium;compressing the further written data signal with the compression algorithm of the telephone answering machine at the predetermined third data compression rate resulting in further compressed data, the third data compression rate being greater than the second data compression rate; andstoring the further compressed data in the storage medium.