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Information providing system, method and device

A method of indicating and music technology, applied in the direction of current supply device, transmission system, radio transmission system, etc.

Active Publication Date: 2014-08-13
NEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] Also, although a technology capable of reproducing high-quality music together with sound in a telephone device is disclosed, this technology is not intended to suppress Technology for sound quality reduction of music data
That is, as above, the problem of sound quality degradation caused by the codec of the sound source file cannot be improved.

Method used

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  • Information providing system, method and device
  • Information providing system, method and device
  • Information providing system, method and device

Examples

Experimental program
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no. 1 approach

[0128] refer to Figure 1 to Figure 5 The first embodiment of the present invention will be described. figure 1 It is a diagram showing the outline of the overall system configuration in the first embodiment of the present invention. figure 2 is a functional block diagram showing the structure of the melody reproduction control server. image 3 It is a flowchart showing the flow of music encoding processing. Figure 4 is a flowchart showing the operation of the melody reproduction control service device. Figure 5 It is a sequence diagram showing the operation of the whole system.

[0129]

[0130] Such as figure 1 As shown, the system for realizing the color ring service includes the calling side portable phone U1, the called side portable phone U2, the portable phone network 50, and the wireless base stations 51 and 52 and the relay switch 53 (GS: Gateway Switch), mobile phone switches 54 and 55 (MSC: Mobile Switching Center) and other basic structures that can com...

no. 2 approach

[0156] Refer below Figure 6 to Figure 9 A second embodiment of the present invention will be described. Figure 6 It is a functional block diagram showing the configuration of the melody reproduction control server 1 in this embodiment. Figure 7 It is a flowchart showing the operation of the melody reproduction control server 1 in this embodiment. Figure 8 It is a schematic diagram showing the overall configuration of the system in this embodiment, and shows a state of transferring music data.

[0157] In this embodiment, the melody reproduction control server 1 is characterized in that the music data used in the service is stored in the sound source database in WAV format or analog format in advance, and then transmitted to the calling mobile phone U1. , check the codec type of the calling mobile phone U1, perform music encoding processing corresponding to the codec type to generate music data, and distribute the music data to the calling mobile phone U1. That is, in the ...

no. 3 approach

[0170] Below, refer to Figure 9 A third embodiment of the present invention will be described. In the present embodiment, a music codec for generating music data through the music encoding process described above is installed in the wireless base station 51 together with a conventional audio codec.

[0171] That is, in this embodiment, if Figure 9 As shown, the wireless base station 51 has a music codec device 51a (music codec unit), and the music codec device 51a processes the music data sent from the melody reproduction control server 1 in correspondence with the codec of the mobile phone. A music codec that is different from a codec for sound and does not have noise cancellation processing.

[0172] Then, before the music data sent from the melody reproduction control server 1 reaches the wireless base station 51, it is transmitted in PCM64K as in the prior art example (refer to Figure 9 arrows A21, 22, 23, 24). Then, in the wireless base station 51, when the music d...

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PUM

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Abstract

An object of the present invention is to maintain the quality of information in a portable phone while suppressing the deterioration of the quality of information data provided through a wireless communication network, and to realize high-quality information reproduction in a portable phone. The information data providing system provides the information data to the portable phone (U1) through the wireless base station (51), and the wireless base station (51) has an information data sending unit that transmits the information data to the portable phone (U1) in a codec direct manner, and, The message data is data encoded in advance according to the codec of the mobile phone.

Description

technical field [0001] The present invention relates to an information providing system, and more particularly to an information providing system for providing information to a mobile phone through a mobile phone network. It also relates to an information providing method, an information providing device, and an information providing program. Background technique [0002] With the popularization of mobile phones, technologies for improving the sound quality of the mobile phone during calls have been installed. The main codecs used for each cellular phone mode are shown below. Also, it is indicated in the order of "method: codec, transmission band (Kbit / sec), audio band (Kbit / sec)". [0003] PHS: ADPCM, 32, 32 [0004] PDC Full rate (full rate): VSELP, 11.2, 6.7 [0005] PDC Half rate (half rate): PSI-CELP, 5.6, 3.45 [0006] GSM: RPE-LTP, 22.8, 13 [0007] CdmaOne: EVRC, 9.6, 8 [0008] WCDMA (FOMA): AMR, 38.6, 12 / 23 [0009] Fixed telephone (reference): PCM, 64, 64...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/26G10K15/02H04M11/08H04L12/28H04W8/22H04W68/00H04W88/18H04W92/00
CPCG10L19/167H04L12/2854H04M3/42017H04M2207/182H04W8/22H04B7/2628H04M19/041
Inventor 森久幸
Owner NEC CORP