Truetouch used in separable mobile-phone handset

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Edited by the Electronicstalk editorial team Jul 23, 2010

Fujitsu has selected Cypress Semiconductor's Truetouch solution to implement the touch screen in NTT Docomo's Prime series F-04B mobile phone.

The Prime series F-04B mobile phone is claimed to be the world's first separable handset.

The phone leverages Cypress's CY8CTMG200 controller to power the robust multi-touch interface with a slim 9.8mm form factor that can operate separately from the keyboard.

By detaching the phone's keyboard from the display, users can easily send e-mails, watch television broadcasts or search address books using the touch-screen interface while talking on the baseband.

The flexible Truetouch solution is said to offer proven performance, durability and programmability for other Fujitsu phones, including the Docomo Prime series F-01A phone and the water-resistant Docomo Prime series F-01B phone.

The Docomo Prime series F-04B phone integrates a 12.2-megapixel high-quality camera along with its 3.4in VGA display with user-friendly touch control.

The display can be attached to a projector unit, enabling users to view phone content on a screen as large as 66in.

Cypress's Truetouch family includes single-touch, multi-touch and multi-touch all-point offerings.

Multi-touch all-point functionality can track an unlimited number of touches.

This capability enables designers to create new-usage models for products such as mobile handsets, portable media players (PMPs), GPS systems and other products.

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Company Cypress Semiconductor


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