Patent ID: 7515077

Claim:
Apparatus for storing 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 the output signal of the analog-to-digital converter is stored; and a mode control coupled to the switch, such that in a first mode of operation a signal group applied to the storage element overwrites previous converted signal groups from a signal source, and in a second 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.