
<TABLE> <S> <C>

<ARTICLE>                                             5
<LEGEND>             THE SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
                     EXTRACTED FROM THE COMPANY'S CONSOLIDATED  FINANCIAL
                     STATEMENTS FOR THE TWELVE MONTHS ENDED DECEMBER 31, 1997
                     AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
                     FINANCIAL STATEMENTS
</LEGEND>
       
<S>                                                           <C>
<PERIOD-TYPE>                                                  12-MOS
<FISCAL-YEAR-END>                                              DEC-31-1997
<PERIOD-START>                                                 JAN-01-1997
<PERIOD-END>                                                   DEC-31-1997
<CASH>                                                         24,076
<SECURITIES>                                                   17,685
<RECEIVABLES>                                                  14,730
<ALLOWANCES>                                                   (1,484)
<INVENTORY>                                                    16,380
<CURRENT-ASSETS>                                               72,734
<PP&E>                                                         39,469
<DEPRECIATION>                                                 30,577
<TOTAL-ASSETS>                                                 81,671
<CURRENT-LIABILITIES>                                          28,127
<BONDS>                                                        0
<PREFERRED-MANDATORY>                                          69,970
<PREFERRED>                                                    0
<COMMON>                                                       459
<OTHER-SE>                                                     (90,474)
<TOTAL-LIABILITY-AND-EQUITY>                                   81,671
<SALES>                                                        80,311
<TOTAL-REVENUES>                                               80,311
<CGS>                                                          41,140
<TOTAL-COSTS>                                                  81,056    <F1>
<OTHER-EXPENSES>                                               (14,150)  <F2>
<LOSS-PROVISION>                                               0
<INTEREST-EXPENSE>                                             86
<INCOME-PRETAX>                                                16,310
<INCOME-TAX>                                                   1,507
<INCOME-CONTINUING>                                            14,803
<DISCONTINUED>                                                 0
<EXTRAORDINARY>                                                0
<CHANGES>                                                      0
<NET-INCOME>                                                   14,803
<EPS-PRIMARY>                                                  0.32
<EPS-DILUTED>                                                  0.32
<FN>
 <F1>    INCLUDES S&A AND RD&E OF 24,452 AND15,464 RESPECTIVELY
 <F2>    INCLUDES ROYALTY INCOME OF 12,550 AND RESTRUCTURING CREDITS OF 1,659
</FN>
        

</TABLE>
