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Pseudo stitching of EMS objects Disclosure Number: IPCOM000005982D
Original Publication Date: 2001-Nov-21
Included in the Prior Art Database: 2001-Nov-21
Document File: 3 page(s) / 69K

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Lee Huang Siong: AUTHOR


Pseudo stitching of EMS objects

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Pseudo stitching of EMS objects


Lee Huang Siong


Enhanced Messaging Service (EMS) allows pictures and musical tones (tunes) to be composed as part of the text message. This would enable phone users to convey messages to their intended recipients in an interesting way.


In accordance with 3GPP TS 23.040 v4.2.0 Technical Realization of the Short Message Service (SMS) Release 4, the EMS Standard mandates use of the iMelody format for the transport of user-defined sound (tunes). However, it further mandates that an iMelody object shall not be longer than 128 bytes.

As such, the number of musical notes an iMelody object can store is limited. For example, the best it can do without a song name and with all notes in the same octaveis approximately 33 notes. In addition, the current EMS specification indicates that support of user-defined animation is restricted to either 16x16 & 32x32 pixels.

In some mobile phones an active cursor is used to browse spaced EMS objects of a received message. A user therefore needs to move the active cursor to “activate” the EMS object. For example, to play a user-defined sound, even though the sound is in view, user must move the active cursor to the tune icon in order for the phone to start playing the tune.

Pseudo stitching of tunes

Fig. 1 shows an implementation of typical phone that supports an active cursor whereas Fig. 2 shows an improved implementation using pseudo stitching.   Referring to Fig. 1, if a received EMS message comprises of a picture and two songs then the cursor must be moved to select which song to play or alternatively to activate animation of the picture.  In contrast, in Fig. 2 the same massage when viewed automatically start both the animation of the picture and at the same time sequential playing of both tunes.  The animation and tunes are automatically started when they appear on the screen.  Further if the screen is...