Method for Enhancing Quality of Service in Mobile Telephony

• US 20090116471A1
• Filed: 06/08/2005
• Published: 05/07/2009
• Est. Priority Date: 06/08/2004
• Status: Abandoned Application

• Current Assignee: DXO Labs
• Original Assignee: DXO Labs
• Inventors: Guichard, Frederic, Liege, Bruno, Meniere, Jerome
• Application Number:
  US11/628,987
• Publication Number:
  US 20090116471A1
• Time in Patent Office: Days
• US Class Current: 370/350
• CPC Class Codes: H04M 1/72439 for image or video messaging
• CPC Class Codes: H04N 1/00307 with a mobile telephone apparatus constructional features of portable telephone sets H04M1/0202; mobile radio systems H04W84/00
• CPC Class Codes: H04N 1/00318 with a multi-media apparatus
• CPC Class Codes: H04N 1/40 Picture signal circuits H04N1/387 takes precedence
• CPC Class Codes: H04N 2201/0093 Facsimile machine H04N2201/0094 takes precedence

Abstract

A method for enhancing quality of service concerning at least one multimedia data, in particular concerning photographs, and/or video, and/or audio, and/or text, involving least one processing of the data. The method includes determining, beforehand or in real time, based on the factor, a first fraction of the multimedia data to be processed in the mobile telephone, a second fraction of the multimedia data to be processed in at least one remote server connected to the mobile telephone via the network, a first fraction of the processing to be carried out in the mobile telephone, and a second fraction of the processing to be carried out in at least one remote server, and performing each fraction of the processing and/or processing each fraction of the multimedia data thus determined in the mobile telephone and/or in the remote server.

Claims

1-21. -21. (canceled)

22. A method to improve quality of using a service relating to at least one type of multimedia data, namely relating to photos, and/or video, and/or audio, and/or text, implementing at least one process for such data;

such service being proposed by a service provider and/or a telecommunications'"'"' operator inside a user'"'"'s mobile telephone via a network, the mobile telephone being connected to a remote server via the network;

the method comprising;

inside the mobile telephone, a compression for the multimedia data, such compression including pre-processing to optimize size of the multimedia data, a compression rate applied, and its format, such pre-processing depending upon specifications of the network transmission, and an optimal compression curve depending on the size of the multimedia data,

wherein the compression is preferably implemented within the frequency domain.

23. A method according to claim 22, in which the pre-processing depends upon the type of service required and/or the type of the multimedia data compression.

24. A method according to claim 22 further comprising decompression with, preferably, an elimination process of artefacts or defects linked to compression.

25. A method according to claim 22 in which, the multimedia data is of digital type, and a compression rate and a sampling rate are determined using the optimal predetermined compression curve.

26. A method according to claim 22, in which the optimal compression curve is contained inside a memory of the mobile telephone in a form of one or plural charts.

27. A method according to claim 22, in which the optimal compression curve is contained inside a memory of the mobile telephone in a form of a value or algorithm tables.

28. A method according to claim 22, in which the compression includes:

using a first pre-determined chart, to determine a rate of sampling to be used depending on a size of the data to be compressed;

using a second chart, to determine a rate of compression to be used according to the rate of sampling determined previously;

such first and second charts forming the optimal compression curve;

in a case that a size of the multimedia data obtained after compression exceeds a size supported by the network, a compression rate higher than the rate determined is chosen, and using the second chart, the corresponding sampling rate is chosen, and using the first chart, the size of the multimedia data obtained at the end of the compression carried out with the new rate is determined;

this last operation being repeated until achieving a satisfactory file size.

29. A mobile telephone terminal comprising:

means for improving quality of using a service relating to at least one type of multimedia data, namely relating to photos, and/or video, and/or audio, and/or text, implementing at least one process for such data;

such service being proposed by a service provider and/or a telecommunications'"'"' operator inside a user'"'"'s mobile telephone via a network, the mobile telephone being connected to a remote server via the network;

the means for improving including, means for compressing the multimedia data, for example, means of the JPEG type, such compression means including pre-processing means to optimize a size of the multimedia data, the compression rate applied, and its format, such pre-processing depending upon specifications of the network transmission, and an optimal compression curve according to the size of the multimedia data;

the compression preferably being implemented within the frequency domain.

30. A mobile telephone terminal according to claim 29, including pre-processing means for optimizing the size of the multimedia data, such pre-processing depending upon the type of service required and/or the type of the multimedia data compression.

31. A mobile telephone terminal according to claim 29, including, in a case that the multimedia data is of digital type, means for determining a compression rate and a sampling rate using the predetermined optimal compression curve.

32. A mobile telephone terminal according to claim 29, including a memory containing the optimal compression curve in a form of one or plural charts.

33. A mobile telephone terminal according to claim 29, including a memory containing the optimal compression curve in a form of a value or algorithm tables.

34. A mobile telephone terminal according to claim 29, in which the means for compression includes:

means for determining, using a first predetermined chart, the sampling rate to be used depending on the size of the data to be compressed;

means for determining, using a second chart, the compression rate to be used according to the sampling rate determined previously;

such first and second charts forming the optimal compression curve;

means for, in a case that the size of the multimedia data obtained after compression exceeds the size supported by the network, choosing a compression rate higher than the rate determined;

selecting, using the second chart, the corresponding sampling rate; and

determining, using the first chart, the size of the multimedia data obtained at the end of the compression step carried out with the new rate;

the last means being used repeatedly until achieving a satisfactory file size.

35. A server of a mobile telephone telecommunications'"'"' network comprising:

means for improving quality of using a service relating to at least one type of multimedia data, namely relating to photos, and/or video, and/or audio, and/or text, implementing at least one process for such data,

the means for improving the quality of use including means for decompression with means for processing elimination of artefacts or faults linked to a compression.