4) Music Play Module. MUSIC needs to be downloaded to
the appointed file folder in advance. Enter the music play
module and the position is located at the position of the
previously played music. Press the confuming key to play
music, press the down sliding key to the second music and
press the up sliding key to the previous music. Therefore, only
three keys can achieve the play of music and the music play
module needs three mobile phone position status codes.
5) Screen Unlocking Module. The screen unlocking
module is divided into a setting and a screen unlocking module,
which both need the input of number. The number encoding
method of Table 2 is adopted to achieve the screen unlocking
of the gravity sensor.
6) Setting Module. The setting module can set only screen
display, only voice prompt, screen display and voice prompt,
corresponding to the use for the blind or the experience use for
normal people respectively. An up sliding key, a down sliding