Patent ID: 6775648
Filing Date: 2004-08-10
Classification: G06F,G11C

Abstract:
A dictation apparatus for storing a speech signal in addressable memory means, the device comprisinginput means for receiving the speech signal, data compression means for data compressing the speech signal into a data compressed speech signal, the data compression means being adapted to carry out a data compression step on the speech signal in one of at least two different data compression modes, the at least two different data compression modes resulting in different data compression ratios when applied to the same speech signal, the said at least two different data compression modes being selectable by a user, the data compression means being further adapted to create data files comprising a data compressed speech signal, the data files comprising a header portion, the data compression means being also adapted to generate an identifier signal identifying the data compression mode selected and being adapted to store said identifier signal in said header portion, storing means for storing the data files in the memory means, the storing means comprising address generator means for generating addresses for said addressable memory means, for storing blocks of information comprised in a data file in the memory means, control means selectively operable by a user for providing an insert signal and an end of insert signal, pointing vector generator means for generating a block of pointing vectors in response to the occurrence of each insert signal, said block of pointing vectors comprising a first address signal corresponding to an address of where a dictation insert should be placed in the data file and a second address signal corresponding to a beginning address of an available portion of said addressable memory for storing the dictation insert.