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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 CekVpi6DVxqQBFJ1rym5UGkOIHkvfs1gLTYmE0C2zVKZB/hHc1Y88Ngn+DhA8S/k
 VZ8dikUqBQEyp+l8Y2pkFg==

<SEC-DOCUMENT>0001292234-05-000001.txt : 20050310
<SEC-HEADER>0001292234-05-000001.hdr.sgml : 20050310
<ACCEPTANCE-DATETIME>20050310195004
ACCESSION NUMBER:		0001292234-05-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050309
FILED AS OF DATE:		20050310
DATE AS OF CHANGE:		20050310

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FOCUS ENHANCEMENTS INC
		CENTRAL INDEX KEY:			0000884719
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER COMMUNICATIONS EQUIPMENT [3576]
		IRS NUMBER:				043144936
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1370 DELL AVE
		CITY:			CAMPBELL
		STATE:			CA
		ZIP:			95008
		BUSINESS PHONE:		4088668300

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			McPherson Robert J
		CENTRAL INDEX KEY:			0001292234

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11860
		FILM NUMBER:		05673716

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		763-571-7588

	MAIL ADDRESS:	
		STREET 1:		5155 EAST RIVER RD.
		STREET 2:		SUITE 401
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55421
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-03-09</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0000884719</issuerCik>
        <issuerName>FOCUS ENHANCEMENTS INC</issuerName>
        <issuerTradingSymbol>fcse</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001292234</rptOwnerCik>
            <rptOwnerName>McPherson Robert J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5155 EAST RIVER RD.</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 401</rptOwnerStreet2>
            <rptOwnerCity>MINNEAPOLIS</rptOwnerCity>
            <rptOwnerState>MN</rptOwnerState>
            <rptOwnerZipCode>55421</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Former C.O.O.</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-03-09</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>9000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.06</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8763</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>Robert McPherson by Gary Williams, Attorney in Fact</signatureName>
        <signatureDate>2005-03-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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