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Data processor, data processing method, program for data processor, and program recording medium

A data processor and data processing technology, applied in data recording, digital recording/reproducing, record carrier type, etc., can solve the problems of unsatisfactory, ineffective utilization of the maximum transmission rate, etc., to achieve recording, high-quality The effect of recording

Inactive Publication Date: 2004-12-01
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, in such a schedule performed by a conventional data processor for fixedly allocating transfer rates, the maximum transfer rate cannot be effectively utilized when recording and reproduction are not simultaneously performed.
In the above example, even when only data logging is performed, the data logging is limited to a transfer rate of 25Mbps, and the remaining 25Mbps is unusable
Therefore, in this case, the transmission efficiency of the maximum transmission rate is 50%, which is unsatisfactorily low

Method used

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  • Data processor, data processing method, program for data processor, and program recording medium
  • Data processor, data processing method, program for data processor, and program recording medium
  • Data processor, data processing method, program for data processor, and program recording medium

Examples

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Embodiment 1

[0042] figure 1 is a block diagram illustrating the structure of the data processor 1 according to Embodiment 1 of the present invention. exist figure 1 Among them, the data processor 1 according to the first embodiment includes a digital data input unit 11 , a data writing unit 12 , a recording medium 13 , a data reading unit 14 , a digital data output unit 15 and a transmission rate control unit 16 . The digital data input section 11 and the digital data output section 15 form a data reception section. The data writing unit 12 and the data reading unit 14 form a data processing unit.

[0043] First, each component of the data processor 1 according to the first embodiment will be schematically described below.

[0044] In response to a recording request given by a user or the like, the digital data input section 11 is supplied with digital data to be recorded and related information such as a file name and recording quality (bit rate). The digital data input section 11 ...

Embodiment 2

[0058]In the first embodiment described above, the plurality of data processes that control allocation of the transfer rate may be recording processing or reproduction processing. In the second embodiment, described is the control of the transmission rate when data processing includes dubbing processing. Note that dubbing processing here refers to one data processing in which reproduction processing and recording processing are performed simultaneously.

[0059] Figure 8 is a block diagram illustrating the structure of the data processor 2 according to the second embodiment of the present invention. exist Figure 8 Among them, the data processor 2 according to the second embodiment includes a digital data input unit 21, a data writing unit 12, a recording medium 13, a data reading unit 14, a digital data output unit 25, a transfer rate control unit 26, and a dubbing control unit 27. The digital data input section 21 and the digital data output section 25 form a data recep...

Embodiment 3

[0070] In the first and second embodiments, the input data is digital data. Simulation data can be input by the structure described below added to each embodiment. Fig. 14 is a block diagram illustrating the structure of data processing 3, which is modified by figure 1 The structure of the data processor is formed. As shown in FIG. 14, in order to support analog data, an analog data input section 31 and an encoder section 32 are provided in front of the digital data input section 11, and a decoder section 33 and an analog data input section 33 are provided behind the digital data output section 15. Output section 34.

[0071] The simulation data is supplied to the simulation data input unit 31 . The encoder section 32 converts the analog data supplied to the analog data input section 31 into digital data. The converted digital data is supplied to the data input section 11 . On the other hand, the decoder section 33 converts the digital data output from the digital data o...

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Abstract

A data processor and a data processing method allowing a plurality of data processes to be simultaneously performed at a high transfer rate use efficiency are provided. When a transfer rate x required for the plurality of data processes to be simultaneously performed exceeds a maximum transfer rate y of a recording medium (13), a transfer rate control section (16) selects a data process having a low priority, and changes a transfer rate assigned to the selected data process so that the required transfer rate x is within the maximum transfer rate y. The changed transfer rate is reported to the data writing section (12) for performing a writing process on the recording medium (13) or to the data reading section (14) for performing a reading process on the recording medium (13).

Description

Background of the invention [0001] technical field of invention [0002] The present invention relates to a data processor, a data processing method, a program of the data processor, and a program recording medium. More specifically, the present invention relates to a data processor for performing recording processing of digital data and / or reproduction processing of digital data on a recording medium such as a semiconductor memory, an optical disk, a magnetic disk, or a magneto-optical disk. [0003] Description of Background Art [0004] Currently, various data processors that perform recording processing of digital data and / or reproduction processing of digital data on recording media such as semiconductor memories, optical disks, magnetic disks, or magneto-optical disks have been commercially realized. Examples of data processors that record and / or reproduce digital images and digital sound include digital video cassette recorders, digital hard disk recorders, DVD video ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/10G11B27/034G11B27/32H04N5/76H04N5/781H04N5/85H04N5/92
CPCG11B2220/2562H04N5/85G11B27/034G11B20/10527H04N5/9201G11B27/329G11B2020/10962G11B2020/10953H04N5/781G11B2020/00079H04N5/76G11B2220/2541G11B20/10
Inventor 山下和彦
Owner PANASONIC CORP
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