Patent ID: 7557745
Filing Date: 2009-07-07
Classification: G06F

Abstract:
1. Apparatus for storing converted analog signals from a plurality of signal sources to be processed by a processing unit, the apparatus comprising: a selector circuit for selecting analog signals from one of the signal sources; an analog-to-digital converter, the analog-to-digital converter having the output signal of the selector circuit applied to an input terminal; a plurality of storage elements; a switch coupled between the output terminal of the analog-to-digital converter and the plurality of storage elements, the selector switch determining into which storage element a signal group provided on the output terminal of the analog-to-digital converter is stored, wherein in one mode of operation each signal group is stored in one of a plurality of memory locations in a first-in-first-out (FIFO) manner without overwriting a previously stored signal group from the signal Source; and a conducting path between the storage elements and the processing unit, the processing unit being able to retrieve selected signal groups from the storage unit in a FIFO manner in a second mode of operation, the processing unit being able to retrieve the selected signal groups by directly accessing each one of the plurality of memory locations in a third mode of operation.