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Information processing device

An information processing device and a technology for controlling information, applied in the direction of selection device, data processing power supply, digital signal formatting, etc., can solve the problems of BB-CPU103 overload, consumption, large power, etc.

Inactive Publication Date: 2007-11-21
ROHM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, it is not efficient for the processing related to music reproduction, and the result is that the power consumption is large compared with the processing contents.
[0014] Also, if the BB-CPU 103 is made to process a lot of processing in parallel, the load on the BB-CPU 103 may become excessive, which may cause a malfunction.
In addition, in order to properly process a large number of processes in parallel, a high-performance BB-CPU103 is required correspondingly, which may also become a major cause of an increase in the manufacturing cost of the product.

Method used

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Embodiment Construction

[0033] As one embodiment of the present invention, a communication terminal (for example, a mobile phone, etc.) will be described as an example. First, the configuration of the communication terminal will be described with reference to FIG. 1 .

[0034] The communication terminal 1 includes a communication processing unit 2, a BB-CPU 3, an IC chip 4, and the like. In addition, although not shown in the figure, an operation unit, a display, a power supply connector, etc. in which push button switches and the like are arranged are also provided.

[0035] The communication processing unit 2 includes an antenna, a modulation circuit, a demodulation circuit, and the like. Furthermore, various communication processes such as transmission and reception of speaker voice data and data modulation / demodulation processing are performed under the control of the BB-CPU 3 . Thereby, the communication function required as a telephone can be ensured.

[0036] The BB-CPU 3 executes communica...

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Abstract

An information processing device retrieves external data stored in an external memory and performs predetermined first processing for the external data thus retrieved. Here, the information processing device has: a storage that stores retrieval control information transmitted from outside; and a retrieval controller that controls retrieval of the external data according to the retrieval control information. This makes it possible to efficiently perform the retrieval of data from the external memory, and alleviate the burden on a control device corresponding to a BB-CPU.

Description

technical field [0001] The present invention relates to an information processing device that processes information supplied from an external memory. Background technique [0002] In recent years, electronic devices such as mobile phones have adopted standards corresponding to multimedia, and therefore devices that take in data related to various contents, process them, and output them are often developed. There are various types of data including, for example, music data such as MIDI or MP3 format, and image / video data such as JPEG or MPEG format. [0003] In this situation, in the mobile phone, the baseband CPU (hereinafter appropriately referred to as "BB-CPU") that manages communication processing and the like that is inherently necessary for the phone is also used for music data from the external memory (such as flash memory). Get processing etc. An example of a communication terminal in such a form will be described below with reference to FIG. 3 . [0004] As shown...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/32H04Q7/32
CPCG11B2220/60G11B20/12
Inventor 森龙哉江角尚史今村梦我
Owner ROHM CO LTD