13G/A Page 1 of 4

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. 15)*

Sigma Designs, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

82656 10 3

                                (CUSIP Number)                                

December 31, 2002

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

¨ Rule 13d-1(b)

¨ Rule 13d-1(c)

x Rule 13d-1(d)

* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes)

Schedule 13 G/A Page 2 of 5

CUSIP No. 82656 10 3

1.	Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). Thinh Q. Tran
2.	Check the Appropriate Box if a Member of a Group (See Instructions) (a)   ¨ (b)   ¨
3.	SEC Use Only
4.	Citizenship or Place of Organization United States of America

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH   5.    Sole Voting Power         1,472,006**           6.    Shared Voting Power         -0-           7.    Sole Dispositive Power         1,472,006**           8.    Shared Dispositive Power         -0-        

9.	Aggregate Amount Beneficially Owned by Each Reporting Person 1,472,006**
10.	Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) ¨
11.	Percent of Class Represented by Amount in Row (9) 8.16%
12.	Type of Reporting Person (See Instructions) IN

**Includes 1,015,713 shares underlying stock options exercisable within 60 days of December 31, 2002.

Schedule 13G/A Page 3 of 5

Item 1.

(a) Name of Issuer

Sigma Designs, Inc.

(b) Address of Issuer’s Principal Executive Offices

1221 California Circle

Milpitas, CA 95035

Item 2.

(a) Name of Person Filing

Thinh Q. Tran

(b) Address of Principal Business Office or, if none, Residence

c/o Sigma Designs, Inc.

1221 California Circle

Milpitas, CA 95035

(c) Citizenship

United States of America

(d) Title of Class of Securities

Common Stock

(e) CUSIP Number

82656 10 3

Item 3. If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

Not Applicable

Item 4. Ownership

Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.

(a) Amount beneficially owed: 1,472,006**

(b) Percent of class: 8.16%

(c) Number of shares as to which the person has:

(i) Sole power to vote or to direct the vote 1,472,006**

(ii) Shared power to vote or to direct the vote -0-

(iii) Sole power to dispose or to direct the disposition of 1,472,006**

(iv) Shared power to dispose or to direct the disposition of -0-

**Includes 1,015,713 shares underlying stock options exercisable within 60 days of December 31, 2002.

Item 5. Ownership of Five Percent or Less of a Class

Not Applicable

Schedule 13G/A Page 4 of 5

Item 6.	Ownership of More than Five Percent on Behalf of Another Person
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company
	Not Applicable
Item 8.	Identification and Classification of Members of the Group
	Not Applicable
Item 9.	Notice of Dissolution of Group
	Not Applicable
Item 10.	Certification
	Not Applicable

Schedule 13G/A Page 5 of 5

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

2/14/03

Date

/s/ Thinh Q. Tran

Signature

Thinh Q. Tran

Name/Title