<ARTICLE> 5 <RESTATED> <MULTIPLIER> 1,000 <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> DEC-31-1997 <CASH> 29,556 <SECURITIES> 6,841 <RECEIVABLES> 16,843 <ALLOWANCES> (500) <INVENTORY> 9,780 <CURRENT-ASSETS> 69,105 <PP&E> 22,848 <DEPRECIATION> 6,315 <TOTAL-ASSETS> 103,051 <CURRENT-LIABILITIES> 13,329 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 8 <OTHER-SE> 86,351 <TOTAL-LIABILITY-AND-EQUITY> 86,359 <SALES> 94,724 <TOTAL-REVENUES> 94,724 <CGS> 45,240 <TOTAL-COSTS> 77,191 <OTHER-EXPENSES> 319 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> (255) <INCOME-PRETAX> 19,202 <INCOME-TAX> 7,870 <INCOME-CONTINUING> 11,332 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 11,332 <EPS-PRIMARY> 1.46 <EPS-DILUTED> 1.42