Exhibit 21.1

SUBSIDIARIES OF THE REGISTRANT

DigitalOptics Corporation, a Delaware corporation

FotoNation Corporation, a Delaware corporation

FotoNation Limited, an Irish limited corporation

FotoNation SRL, a Romanian limited liability corporation

Invensas Corporation, a Delaware corporation

Tessera, Inc., a Delaware corporation

Tessera Advanced Technologies, Inc., a Delaware corporation

Tessera Intellectual Property Corp., a Delaware corporation

Tessera Technologies, Inc., a Delaware corporation

Ziptronix, Inc., a Delaware corporation

iBiquity Digital Corporation, a Delaware corporation

DTS (BVI) Limited, a company organized under the laws of Japan

dts Japan KK, a company organized under the laws of Japan

DTS Washington LLC, a Delaware limited liability company

DTS, LLC, a Delaware limited liability company

Phorus, Inc., a Delaware corporation

Manzanita Systems, LLC, a California limited liability company

iBiquity Digital Godo Kaisha, a company organized under the laws of Japan

iBiquity Digital, S. de R.L. de C.V., a company organized under the laws of Mexico

DTS (Asia) Limited, a company organized under the laws of Hong Kong

DTS China Holding Limited, a company organized under the laws of British Virgin Islands

DTS (BVI) AZ Research Limited, a company organized under the laws of the British Virgin Islands

DTS Licensing Holdings, a company organized under the laws of Malta

DTS Licensing Limited, an Irish limited corporation

DLLNI LIMITED, a company organized under the laws of England and Wales

DTS Licensing Pte. Ltd., a company organized under the laws of Singapore

DTS China Licensing (Hong Kong) Limited, a company organized under the laws of Hong Kong

Guangzhou DTS Digital Theater Systems, Co. Ltd., a company organized under the People’s Republic of China