EXHIBIT 3.1

                      RESTATED CERTIFICATE OF INCORPORATION

                                       OF

                            C-CUBE MICROSYSTEMS INC.

  (Pursuant to Section 245 of General Corporation Law of the State of Delaware)

     C-Cube Microsystems Inc., a corporation organized and existing under the
General Corporation Law of the State of Delaware, which was originally
incorporated in Delaware under the name C-Cube Microsystems Delaware Corporation
on February 8, 1994, (the "Corporation") certifies as follows:

     1.   The Corporation's Restated Certificate of Incorporation was duly
adopted by the Board of Directors at a regular meeting in accordance with
Section 245 of the Corporation Law.

     2.   The Corporation's Restated Certificate of Incorporation only restates
and integrates and does not further amend the provisions of the Corporation's
Certificate of Incorporation as theretofore amended or supplemented, and there
is no discrepancy between those provisions and the provisions of the Restated
Certificate.

     3.   The Corporation's Certificate of Incorporation is restated to read in
full as follows:

     FIRST:    The name of the Corporation is C-Cube Microsystems Inc.

     SECOND:   The address of the registered office of the Corporation in the
               State of Delaware is Incorporating Services, Ltd., 15 East North
               Street, in the City of Dover, County of Kent. The name of the
               registered agent at that address is Incorporating Services, Ltd.

     THIRD:    The purpose of the Corporation is to engage in any lawful act or
               activity for which a corporation may be organized under the
               General Corporation Law of Delaware.

     FOURTH:

          A.   The total number of shares of all classes of stock which the
               Corporation shall have authority to issue is One Hundred Fifty
               Five Million (155,000,000), which consists of 150,000,000 shares
               of Common Stock with par value of $.001 per share and 5,000,000
               shares of Preferred Stock with par value of $.001 per share.



          B.   The Preferred shares authorized by this Certificate of
               Incorporation may be issued from time to time in one or more
               series.  The Board of Directors is authorized to determine, alter
               or eliminate any or all of the rights, preferences, privileges
               and restrictions granted to or imposed upon any wholly unissued
               series of Preferred shares, and to fix, increase or decrease the
               number of shares comprising any such series and the designation
               thereof, or any of them, and to provide for the rights and terms
               of redemption or conversion of the shares of any such series.

     FIFTH:    The following provisions are inserted for the management of the
               business and the conduct of the affairs of the Corporation, and
               for further definition, limitation and regulation of the powers
               of the Corporation and of its directors and stockholders:

          A.   The business and affairs of the Corporation shall be managed by
               or under the direction of the Board of Directors.  In addition to
               the powers and authority expressly conferred upon them by statute
               or by this Certificate of Incorporation or the By-Laws of the
               Corporation, the directors are hereby empowered  to  exercise all
               such powers and do all such acts and things as may be exercised
               or done by the Corporation.

          B.   The directors of the Corporation need not be elected by written
               ballot unless the By-Laws so provide.

          C.   On and after the closing date of the first sale of the
               Corporation's Common Stock pursuant to a firmly underwritten
               registered public offering (the "IPO"), any action required or
               permitted to be taken by the stockholders of the Corporation must
               be effected at a duty called annual or special meeting of
               stockholders of the Corporation and may not be effected by any
               consent in writing by such stockholders.  Prior to such sale,
               unless otherwise provided by law, any action which may otherwise
               be taken at any meeting of the stockholders may be taken without
               a meeting and without prior notice, if a written consent
               describing such actions is signed by the holders of outstanding
               shares having not less than the minimum number of votes which
               would be  necessary to authorize or take such action at a meeting
               at which all shares entitled to vote thereon were present and
               voted.

          D.   Special meetings of stockholders of the Corporation may be called
               only (1) by the Board of Directors pursuant to a resolution
               adopted by a majority of the total number of authorized directors
               (whether or not there exist any vacancies in previously
               authorized directorships at the time any such resolution is
               presented to the Board for adoption) or (2) by the holders of not
               less than ten percent (10%) of all of the shares entitled to cast
               votes at the meeting.


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     SIXTH:

          A.   The number of directors shall initially be eight (8) and,
               thereafter, shall be fixed from time to time exclusively by the
               Board of Directors pursuant to a resolution adopted by a majority
               of the total number of authorized directors (whether or not there
               exist any vacancies in previously  authorized directorships at
               the time any such resolution is presented to the Board for
               adoption).  After the closing of the IPO, the directors shall be
               divided into  three classes, with the term of office of the first
               class (Class I) to expire at the  first annual meeting of the
               stockholders following the IPO;  the term of office  of the
               second class (Class II) to expire at the second annual meeting of
               stockholders held following the IPO; the term of office of the
               third class (Class III) to expire at the third annual meeting of
               stockholders following the IPO; and thereafter for each such term
               to expire at each third succeeding annual meeting of stockholders
               after such election.  Subject to the rights of the holders of any
               series of Preferred Stock then outstanding, a vacancy resulting
               from the removal of a director by the stockholders as provided in
               Article SIXTH, Section C below may be filled at a special meeting
               of the stockholders held for that purpose.  All directors shall
               hold office until the expiration of the term for which elected,
               and until their respective successors are elected, except in the
               case of the death, resignation, or removal of any director.

          B.   Subject to the rights of the holders of any series of Preferred
               Stock then outstanding, newly created directorships resulting
               from any increase in the authorized number of directors or any
               vacancies in the Board of Directors resulting from death,
               resignation or other cause (other than removal from office by a
               vote of the stockholders) may be filled only by a majority vote
               of the directors then in office, though less than a quorum, and
               directors so chosen  shall hold office for a term expiring at the
               next annual meeting of stockholders at which the term of office
               of the class to which they have been elected expires, and until
               their respective successors are elected, except in the case of
               the death, resignation, or removal of any director. No decrease
               in the number of directors constituting the Board of Directors
               shall shorten the term of any incumbent director.

          C.   Subject to the rights of the holders of any series of Preferred
               Stock then outstanding, any directors, or the entire Board of
               Directors, may be removed  from office at any time, with or
               without cause, but only by the affirmative vote of the holders of
               at least a majority of the voting power of all of the then
               outstanding shares of capital stock of the Corporation entitled
               to vote generally in the election of directors, voting together
               as a single class.  Vacancies in the Board of Directors resulting
               from such removal may be filled by a majority of the directors
               then in office, though less than a quorum, or by the stockholders
               as provided in Article SIXTH, Section A above.  Directors so
               chosen shall


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               hold office for a term expiring at the next annual meeting of
               stockholders at which the term of office of the class to which
               they have been elected expires, and until their respective
               successors are elected, except in the case of the death,
               resignation, or removal of any director.

     SEVENTH:  The Board of Directors is expressly empowered to adopt, amend or
               repeal By-Laws of the Corporation.  Any adoption, amendment or
               repeal of By-Laws of the Corporation by the Board of Directors
               shall require the approval of a majority of the total number of
               authorized directors (whether or not there exist any vacancies in
               previously authorized directorships at the time any resolution
               providing for adoption, amendment or repeal is presented to the
               Board).  The stockholders shall also have power to adopt, amend
               or repeal the By-Laws of the Corporation.  Any adoption,
               amendment or repeal of By-Laws of the Corporation by the
               stockholders shall require, in addition to any vote of the
               holders of any class or series of stock of the Corporation
               required by law or by this Certificate of Incorporation, the
               affirmative vote of the holders of at least sixty-six and two-
               thirds percent (66-2/3%) of the voting power of all of the then
               outstanding shares of the capital stock of the Corporation
               entitled to vote generally in the election of directors, voting
               together as a single class.

     EIGHTH:   A director of the Corporation shall not be personally liable to
               the Corporation or its stockholders for monetary damages for
               breach of fiduciary duty as a director, except for liability (i)
               for any breach of the director's duty of loyalty to the
               Corporation or its stockholders, (ii) for acts or omissions not
               in good faith or which involved intentional misconduct or a
               knowing violation of law, (iii) under Section 174 of the Delaware
               General Corporation Law, or (iv) for any transaction from which
               the director derived an improper personal benefit.

               If the Delaware General Corporation Law is hereafter amended to
               authorize the further elimination or limitation of the liability
               of a director, then the liability of a director of the
               Corporation shall be eliminated or limited to the fullest extent
               permitted by the Delaware General Corporation Law, as so amended.

               Any repeal or modification of the foregoing provisions of this
               Article EIGHTH by the stockholders of the Corporation shall not
               adversely affect any right or protection of a director of the
               Corporation existing at the time of such repeal or modification.

     NINTH:    The Corporation reserves the right to amend or repeal any
               provision contained in this Certificate of Incorporation in the
               manner prescribed by the laws of the State of Delaware and all
               rights conferred upon stockholders are granted subject to this
               reservation; PROVIDED, HOWEVER, that, notwithstanding any other
               provision of this Certificate of Incorporation or any provision
               of law which


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               might otherwise permit a lesser vote or no vote, but in addition
               to any vote of the holders of any class or series of the stock of
               this Corporation required by law or by this Certificate of
               Incorporation, the affirmative vote of the holders of at least
               66-2/3% of the voting power of all of the then outstanding shares
               of the capital stock of the Corporation entitled to vote
               generally in the election of directors, voting together as a
               single class, shall be required to amend or repeal this Article
               NINTH, Article FIFTH, Article SIXTH, Article SEVENTH or Article
               EIGHTH.

     TENTH:    The name and mailing address of the incorporator is:

                                 Andrea Charvet
                          Gray Cary Ware & Freidenrich
                               400 Hamilton Avenue
                           Palo Alto, California 94301


     IN WITNESS WHEREOF, the Corporation has caused this Restated Certificate to
be signed and attested by its duly authorized officers on this 18th day of
April, 1996.


                                   C-CUBE MICROSYSTEMS INC.



                                      By: /s/ ALEXANDRE A. BALKANSKI
                                          --------------------------------------
                                              Alexandre A. Balkanski, President


ATTEST:



      /s/ JAMES G. BURKE
- ----------------------------------
     James G. Burke, Secretary


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