EXHIBIT 99.1

                           CERTIFICATE OF AMENDMENT OF
                    RESTATED CERTIFICATE OF INCORPORATION OF
                              QUALCOMM INCORPORATED

      QUALCOMM Incorporated, a corporation organized and existing under and by
virtue of the General Corporation Law of the State of Delaware, does hereby
certify:

      FIRST: The name of the Corporation is QUALCOMM Incorporated (the
"Corporation").

      SECOND: The date on which the Corporation's original Certificate of
Incorporation was filed with the Secretary of State of the State of Delaware is
August 15, 1991.

      THIRD: The Board of Directors of the Corporation, acting in accordance
with the provisions of Sections 141 and 242 of the General Corporation Law of
the State of Delaware, adopted resolutions at a meeting held on November 2, 1999
to amend Article IV of the Restated Certificate of Incorporation of the
Corporation to read in its entirety as follows:

            "This corporation is authorized to issue two classes of stock to be
      designated, respectively, "Common Stock" and "Preferred Stock." The total
      number of shares which the corporation is authorized to issue is three
      billion eight million (3,008,000,000) shares. Three billion
      (3,000,000,000) shares shall be Common Stock, each having a par value of
      one one-hundredth of one cent ($0.0001). Eight million (8,000,000) shares
      shall be Preferred Stock, each having a par value of one one-hundredth of
      one cent ($0.0001). Effective at the time of filing with the Secretary of
      State of the State of Delaware of this Certificate of Amendment (the
      "Effective Time"), each share of the corporation's Common Stock, par value
      $0.0001 per share, issued and outstanding shall, automatically and without
      any action on the part of the respective holders thereof, be split into
      four (4) shares of Common Stock, par value $0.0001 per share, of the
      corporation."

      FOURTH: The foregoing amendment was submitted to the stockholders of the
Corporation for their approval and was duly adopted in accordance with the
provisions of Section 242 of the General Corporation Law of the State of
Delaware.

      IN WITNESS WHEREOF, QUALCOMM Incorporated has caused this Certificate of
Amendment to be signed by its duly authorized officers this 20th day of
December, 1999.

                               By:      /s/ Irwin Mark Jacobs
                                        ---------------------------------------
                                        Irwin Mark Jacobs
                                        Chairman of the Board of Directors

ATTEST:

By:      /s/ Steven R. Altman
         ----------------------
         Steven R. Altman
         Assistant Secretary