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Sampling data transmitting/receiving method and device

A technology of sampling data and receiving method, which is applied in the field of sampling data transmission/reception and devices, and can solve the problems of complicated devices, too much data, and reduced bus data transmission efficiency, etc.

Inactive Publication Date: 2005-08-24
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to this method, the data to be sent will become a lot, and as a result, the data transmission efficiency of the entire bus will be reduced
It is also conceivable that such systems are divided according to the sampling frequency, but this would require a playback device for each system, and would also need to maintain synchronization between these systems, which would complicate the installation change

Method used

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  • Sampling data transmitting/receiving method and device
  • Sampling data transmitting/receiving method and device
  • Sampling data transmitting/receiving method and device

Examples

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Embodiment Construction

[0031] Specifically, according to the first embodiment of the present invention, a method for transmitting sampled data transmits first sampled data sampled at a first sampling frequency and second sampled data sampled at a second sampling frequency higher than the first sampling frequency , this transmission is performed by combining the first and second sampling data generated in the sampling period of the first sampling frequency into one data block, and adding the corresponding to the first sampling frequency to the second sampling data The number data of the number of sample data generated in the sampling cycle. This allows the entire signal to be sent at different sampling frequencies, and it is also easy to recombine and restore these samples.

[0032] According to the second embodiment of the present invention, it is a method for receiving sampled data. The transmitted signal it receives includes first sampled data sampled at a first sampling frequency and first sample...

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Abstract

In order to transmit and receive sample data of different sampling frequencies collectively, the first row of a packet is composed of four bytes and the first and second rows are provided with headers prescribed by the IEEE1394 standard. Also, the second byte in the third row is provided with the first counted value of a data block counter and a fourth byte is provided with a next to the last counted value (DBC) of the data block counter. Further, latter half two bytes in the fourth row are provided with a value of a reference time (time stamp data). The first two bits in the fifth row are provided with values showing recording media, the fourth bits are provided with flags showing sampling frequencies, the seventh and eighth bits are provided with values showing quantized bit numbers, and the second three bytes and after are provided with sample data. The last row of the packet is provided with an error correcting code for data transmitted in and after the third row.

Description

technical field [0001] The present invention relates to a sampling data sending method, a sampling data receiving method, a sampling data transmission method and its sending device, its receiving device and its transmission device, suitable for use on DVD-ROM (Read-Only-Memory) to playback DVD audio. The present invention is characterized in that a plurality of data sampled at different sampling frequencies can be efficiently transmitted in a predetermined transmission format. Background technique [0002] As an example of a digital audio signal recording medium, there is already a DVD audio system using a DVD-ROM. An advantage of the extremely large recording capacity of the DVD-ROM is utilized in this DVD audio, and recording of multi-channel and high-quality sound signals has been performed using a sampling frequency set of, for example, 96 kHz. [0003] Specifically, in this DVD audio recording format, a total of four channels are recorded by providing sampling data of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B20/10G11B20/12G11B27/30H04L12/40H04L12/64H04L29/02
CPCH04L12/40071G11B2020/10592G11B20/10527H04L12/40058G11B2220/2562H04L12/40117G11B27/3027G11B20/10
Inventor 佐藤真刑部义雄
Owner SONY CORP
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