"We're considering various options of outsourcing as well as strengthening our own production capacity because of rising demand," a spokesperson for Sony said. The Nikkei English News recently reported that Sony plans to hire Fujitsu for the bulk of the production process for complementary metal-oxide semiconductor sensors used in digital cameras and camera phones.

"Although discussions are ongoing with Sony and Renesas Electronics to secure their continued access to our semiconductor packaging technology through a licensing relationship with us, these discussions have not sufficiently advanced, thus necessitating this lawsuit," said Henry Nothhaft, chairman and CEO of Tessera.

CEO Nordberg said that Sony Ericsson is unlikely to create its own tablet-style personal computer. Sony is likely to produce any tablet that Sony Ericsson sells in the future, he added.

Sony Ericsson posted its second consecutive quarterly profit Friday as strong sales of newly launched mobile phones in the second quarter helped reverse heavy year-earlier losses.

LG Electronics, Samsung Electronics, Sony Pictures Entertainment and Valens Semiconductor has announced formal incorporation of the HDBaseT Alliance and the finalization of the HDBaseT 1.0 specification, made available to Alliance member companies for CE implementation.