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Control system and method of multipath input data

A multi-channel input and data input technology, applied in the direction of electrical digital data processing, instruments, etc., to achieve the effect of improving performance and reducing equipment cost and complexity

Inactive Publication Date: 2007-05-30
VIMICRO CORP
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the multi-channel input data control system and its control method in the prior art, and propose a low-cost, low-equipment multi-channel input data control system and its control method, Send multi-channel input data to the processor for processing with a small delay and no loss at a small resource cost

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  • Control system and method of multipath input data

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Embodiment Construction

[0034] The basic idea of ​​the present invention is to synchronize multi-channel audio data with the same data sampling rate into synchronous data through clock synchronization, and convert it into single-channel composite data and send it to the processor for processing.

[0035] The present invention will be further described below by taking 4 channels of input data as an example in conjunction with the accompanying drawings and embodiments.

[0036] In an audio processing system, if the processor is required to process multiple input data at the same time, these data usually have a common feature, that is, their data sampling rate is the same, for example, the sampling rate is 44K, which means 44K samples per second, The sampling accuracy is 8 bits or 16 bits, etc., otherwise it is difficult for the processor to process them simultaneously. In addition, in some cases, in the process of processing multiple channels of data, if any channel of data is missing, the processor ca...

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Abstract

A controlling method for multiplex input data is used to process the input data of n channel with the same sampling frequency. The method includes: the n channels input data are converted into n channels synchronous data; when the counter receives the data frame synchronous signal is valid, and the counter starts countering repeatedly; the sampling frequency of the data frame synchronous data is same with the input data. The invention converts the multiplex input data into the single-channel complex data, and just needs an input buffer control and a buffer to transmit the multiplex input data to the processor, reduce the cost of device and the complexity, and improve the processing performance of multiplex data.

Description

technical field [0001] The invention relates to a control system and a control method for multiple input data, in particular to a control system and a control method for multiple input data with the same sampling frequency. Background technique [0002] In the voice data processing system, there are usually multiple channels of data to be sent to the processor for processing. The processor often has only one bus, which requires the input data control circuit to control the input data, and send the input data to the processor through the processor data bus in a certain order. [0003] Fig. 1 is a schematic diagram of sending multi-channel data to a processor through an input data control module. As shown in Figure 1, 4 channels of data: input data 1, input data 2, input data 3 and input data 4 need to be sent to the processor for processing, and the input data control module passes the 4 channels of input data through the processor data in a certain order. bus to the proces...

Claims

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Application Information

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IPC IPC(8): G06F13/00
Inventor 杨作兴
Owner VIMICRO CORP
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