<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE CONSOLIDATED BALANCE SHEET AND CONSOLIDATED STATEMENT OF OPERATIONS AS RESTATED FOUND ON PAGES 2 OR 3 OF THE COMPANY'S FORM 10-Q FOR THE YEAR TO DATE JUNE 30, 1997, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <RESTATED> <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> JUN-30-1997 <CASH> 6,696 <SECURITIES> 0 <RECEIVABLES> 3,630 <ALLOWANCES> 0 <INVENTORY> 411 <CURRENT-ASSETS> 11,551 <PP&E> 7,486 <DEPRECIATION> 5,365 <TOTAL-ASSETS> 21,397 <CURRENT-LIABILITIES> 8,135 <BONDS> 0 <PREFERRED-MANDATORY> 2,686 <PREFERRED> 0 <COMMON> 61,639 <OTHER-SE> (55,587) <TOTAL-LIABILITY-AND-EQUITY> 21,397 <SALES> 8,739 <TOTAL-REVENUES> 8,739 <CGS> 4,945 <TOTAL-COSTS> 4,945 <OTHER-EXPENSES> 1,946 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> (109) <INCOME-PRETAX> (3,864) <INCOME-TAX> 0 <INCOME-CONTINUING> (3,864) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (3,864) <EPS-PRIMARY> (.40) <EPS-DILUTED> (.40)