MOBILE MEDIA DEVICE AND METHOD FOR PLAYING MEDIA STREAM

• US 20100014003A1
• Filed: 03/05/2009
• Published: 01/21/2010
• Est. Priority Date: 07/18/2008
• Status: Abandoned Application

• Current Assignee: Wistron Corporation
• Original Assignee: Wistron Corporation
• Inventors: CHANG, Yao-Tsung
• Application Number:
  US12/398,694
• Publication Number:
  US 20100014003A1
• Time in Patent Office: Days
• US Class Current: 348/731
• CPC Class Codes: H04N 21/23109 by placing content in organized collections, e.g. EPG data repository details of retrieval of video data and associated meta data in video databases G06F16/739
• CPC Class Codes: H04N 21/4126 The peripheral being portable, e.g. PDAs or mobile phones
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/4263 involving specific tuning arrangements, e.g. two tuners
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/4383 Accessing a communication channel
• CPC Class Codes: H04N 21/4524 involving the geographical location of the client retrieval from the Internet by querying based on geographical locations G06F16/9537; systems specially adapted for using geographical information in broadcast systems H04H60/70; protocols in which the network application is adapted for the location of the user terminal in communication control or processing H04L67/52; services making use of the location of users or terminals in wireless networks H04W4/02; locating users or terminals in wireless networks H04W64/00
• CPC Class Codes: H04N 21/4753 for user identification, e.g. by entering a PIN or password cryptographic authentication protocols H04L9/32; networks authentication protocols H04L63/08

Abstract

A mobile media device is disclosed. The mobile media device includes a database, a list-selecting unit, a channel-selecting unit, a tuning unit and a playing unit. The database stores several data channel lists, wherein each of the data channel lists has a location information column. The list-selecting unit selects a local channel list from the data channel lists by comparing present location information of the mobile media device with the location information columns of the data channel lists. The channel-selecting unit selects information of a channel from the local channel list. The tuning unit obtains a media stream according to the information of the channel. The playing unit plays the media stream.

Claims

1. A mobile media device, comprising:

a database for storing a plurality of data channel lists, wherein each of the data channel lists has a location information column

a list-selecting unit for selecting a local channel list from the data channel lists by comparing present location information of the mobile media device with the location information columns of the data channel lists;

a channel-selecting unit for selecting information of a channel from the local channel list;

a tuning unit for obtaining a media stream according to the information of the channel; and

a playing unit for playing the media stream.

2. The mobile media device of claim 1, further comprising:

a positioning unit for positioning the mobile media device according to a positioning signal to obtain the present location information of the mobile media device.

3. The mobile media device of claim 1, further comprising:

a user interface; and

an input unit for obtaining the present location information of the mobile media device input from the user interface.

4. The mobile media device of claim 1, further comprising:

a scanning unit for scanning digital broadcast frequencies to obtain a digital channel list, wherein the scanning unit is triggered once the local channel list does not exist in the database;

a filling unit for filling the present location information of the mobile media device in a location information column of the digital channel list to generate a present channel list; and

an assigning unit for assigning the present channel list to be the local channel list.

5. The mobile media device of claim 4, further comprising:

a storing unit for storing the present channel list to the database.

6. The mobile media device of claim 4, further comprising:

a user interface, wherein the scanning unit is triggered once a scanning request is input through the user interface.

7. The mobile media device of claim 1, wherein the playing unit comprises:

an audio playing unit for playing audio of the media stream.

8. The mobile media device of claim 1, wherein the playing unit comprises:

a video playing unit for playing video of the media stream.

9. A method for playing a media stream, comprising:

obtaining present location information;

selecting a local channel list from a database according to the present location information;

selecting information of a channel from the local channel list;

obtaining the media stream according to the information of the channel; and

playing the media stream.

10. The method for playing the media stream of claim 9, wherein the step of obtaining the present location information comprises:

obtaining a positioning signal; and

obtaining the present location information according to the positioning signal.

11. The method for playing the media stream of claim 9, wherein the step of obtaining the present location information comprises:

obtaining location information input from a user interface; and

assigning the location information input to be the present location information.

12. The method for playing the media stream of claim 9, further comprising:

determining if the present channel list exists in the database;

when the present channel list does not exist in the database, scanning digital broadcast frequencies to obtain a digital channel list;

filling the present location information in a location information column of the digital channel list to generate a present channel list; and

assigning the present channel list to be the local channel list.

13. The method for playing the media stream of claim 12, further comprising:

storing the present channel list to the database.

14. The method for playing the media stream of claim 9, further comprising:

receiving a scanning request from a user interface;

scanning digital broadcasting frequencies to obtain a digital channel list once the scanning request is received;

filling the present location information in a location information column of the digital channel list to generate a present channel list; and

assigning the present channel list to be the local channel list.

15. The method for playing the media stream of claim 14, further comprising:

storing the present channel list to the database.

16. The method for playing the media stream of claim 9, wherein the step of playing the media stream comprises:

playing audio of the media stream.

17. The method for playing the media stream of claim 9, wherein the step of playing the media stream comprises:

playing video of the media stream.