Method for transferring data, storage device, its controlling method and controller for data transfer

A technology of data transmission control and data transmission method, which is applied in the input/output process of data processing, electrical digital data processing, input/output to the record carrier, etc. Problems such as missing amplitude and sound failure
CN1455926AInactive Publication Date: 2003-11-12PANASONIC CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PANASONIC CORP
Publication Date
2003-11-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

An object of the present invention is to provide a storage device having a USB interface, which transfers data in an isochronous transfer mode when the data on a recording medium attached to the storage device is video data or audio data. An external storage device (10) having a USB interface (14) comprises a reading part (11) for reading data from a recording medium (15), a transfer mode selection part (12) which selects the isochronous transfer mode as a transfer mode when the data recorded on the recording medium (15) is video data and / or audio data, while selects a bulk transfer mode as a transfer mode when the data is not video data and / or audio data, and a data transfer part (13) for transferring the data read by the reading part (11) in the transfer mode selected by the transfer mode selection part (12).
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Description

technical field

[0001] The present invention relates to a data transmission method, a storage device, its control method and a data transmission control device, in particular to a data transmission method for switching the transmission mode of a storage device with a USB interface, a storage device with a switchable transmission mode, and a transmission control device for the storage device. A method for controlling a storage device according to the present invention and a data transfer control device for controlling data transfer using the storage device. Background technique

[0002] As the data transmission method of a device with a USB interface, there are the following transmission methods:

[0003] 1. Isochronous transmission mode,

[0004] 2. Interrupt transmission mode,

[0005] 3. Control transmission mode,

[0006] 4. Batch transmission mode.

[0007] Therefore, for a device having a USB interface, the data transfer method is determined according to the type of...

Claims

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