Browse Prior Art Database

Method for Easy Text Input in Devices with Lateral Keys

IP.com Disclosure Number: IPCOM000018852D
Original Publication Date: 2003-Sep-25
Included in the Prior Art Database: 2003-Sep-25
Document File: 4 page(s) / 171K

Publishing Venue

Siemens

Related People

Juergen Carstens: CONTACT

Abstract

The most users know and are experienced with the GSM standard keypad and enter the text automatically without thinking where is a given key. In devices with lateral keys this experience is lost and the process of entering the text is slowed down. In addition the lateral placement of the keys requires visually coordinated either bi-manual operation or a larger distance to move the finger for one-handed operation. The core of the invention is an alignment of a virtual keyboard with the lateral keys on one side of the phone. The access to all the characters of the virtual keyboard is based on using jointly the navikey/joystick and the lateral numerical keys.

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© SIEMENS AG 2003 file: 2003J08445.doc page: 1

Method for Easy Text Input in Devices with Lateral Keys

Idea: Carmen Santa Cruz, DK-Aalborg

The most users know and are experienced with the GSM standard keypad and enter the text automatically without thinking where is a given key. In devices with lateral keys this experience is lost and the process of entering the text is slowed down. In addition the lateral placement of the keys requires visually coordinated either bi-manual operation or a larger distance to move the finger for one-handed operation.

The core of the invention is an alignment of a virtual keyboard with the lateral keys on one side of the phone. The access to all the characters of the virtual keyboard is based on using jointly the navikey/joystick and the lateral numerical keys.

When the virtual key application is activated, the device opens a virtual keyboard on the right or on the left side (option for left-handed people) of the device. This virtual keyboard will have a two-column presentation of preferably 12 alphabetic characters in alphabetical order (figure 1). The change of column focus will be achieved by the horizontal movement of the navikey/joystick (figure 2). Subsequently, the access to a given character in the column is obtained by pressing the numerical key placed at the same level as the displayed character. Special characters can be accessed with the left movement of the navikey. For instance the character " á" will be accessed with left movement of the navikey and keypress "6" . To access the rest of the alphabetical characters, the user has to move down the navikey/joystick after what different "screens" are presented (figure 3). The possible "screens" are actually maps of characters. Consequently, each character has a fixed position in the display and is always accessed in the same way. To access the special punctuation characters either their resulting "character maps" can be placed as the last screens after the alphabetic ones, or preferably (by using a toggle approach) the alphabetic representation can be changed to punctuation representation by pressing the joystick (5-direction navikey), and vice versa. A similar approach can be used to enter numbers when in text mode. The use of the 5th direction of the navikey renders the virtual keyboard tri-dimensional. Thus, the numerical, alphabetical and punctuation characters are presented in a vertical stack.

Given that the virtual keyboard is a presentation in the screen, the preferences of the user can be fully configured. In the following a few possibilities of configuration are introduced:

1) The text input can be changed from portrait to landscape without loosing usability. In this case, the movements of the navikey to operate the virtual keyboard would need to be re-calibrated (figure 4). In the landscape position, the user can enter the text in a more comfortable way using both thumbs. The length of each line is increased what might be prefer...