1 / 5

Mobile Communication

Mobile Communication. Extented-EMS. Mobile Communication. After compression, a composed bytestream is composed of two types of elements: data blocks and block references. A data block contains an uncompressed block of octets.

imelda-compton
Télécharger la présentation

Mobile Communication

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Mobile Communication Extented-EMS

  2. Mobile Communication After compression, a composed bytestream is composed of two types of elements: data blocks and block references. A data blockcontains an uncompressed block of octets. On the other hand a block reference is used to identify a sequence of octets in the uncompressed stream in order to repeat the identified sequence simply by referring to it.

  3. 4level greyscale Mobile Communication For black and white pictures, the dimesions of 4-level greyscale bitmap pictures can reach a maximum of 255 X 255 pixels. In uncompressed form, the state of each pixel of the bitmap picture is represented with 2 bits. It is therefore highly recommended to compress greyscale pictures.

  4. 4level greyscale Mobile Communication Octet 1 – 7 of this information Element contain the generic extended object header. Octets 8 – n contain picture specific information

  5. 64-colour picture Mobile Communication As for black and white and greyscale pictures, dimensions of colour bitmap pictures can reach a maximum of 255 x 255 pixels. In uncompressed form, the state of each pixel of the bitmap picture is represented with 6 bits.

More Related