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DVB-H receiver for forward error correction and method thereof

A forward error correction and receiver technology, which is applied in the direction of correct operation test, error prevention, digital transmission system, etc., can solve the problems of increasing costs, and achieve the effect of reducing data traffic and reducing costs

Inactive Publication Date: 2008-05-28
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the size of the MPE-FEC frame with 1024 columns is 2M bytes, a larger on-chip SRAM is required to de-interleave the MPE-FEC frame, thus increasing the cost

Method used

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  • DVB-H receiver for forward error correction and method thereof
  • DVB-H receiver for forward error correction and method thereof
  • DVB-H receiver for forward error correction and method thereof

Examples

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Embodiment Construction

[0013] Please refer to FIG. 2 , which is a block diagram of a DVB-H receiver according to an embodiment of the present invention. The DVB-H receiver 200 includes: a tuner 210 , a baseband receiver 220 , a backend system 240 , and a storage device 250 . The backend system 240 is coupled to the baseband receiver 220 by means of a bidirectional bus or other types of devices, and the storage device 250 is coupled to the backend system 240 . In this embodiment, the storage device 250 is an external memory and is a DRAM (Dynamic Random Access Memory, hereinafter referred to as DRAM). It should be noted that this component is only used as an example, not to limit the present invention.

[0014] As can be seen from the illustration, the DVB-H receiver 200 does not include on-chip memory coupled to the baseband receiver 220, but instead stores the MPE-FEC frames in an external memory device 250 (DRAM in this embodiment) . When the tuner 210 receives the data stream, the data stream ...

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Abstract

A DVB-H receiver for performing forward error correction is disclosed. The DVB-H receiver includes: a tuner, for receiving a data stream; a base-band receiver, coupled to the tuner, for continuously extracting and transmitting data bytes of an MPE-FEC frame from the data stream; a backend system, coupled to the base-band receiver, for generating corresponding syndromes of the extracted data bytes once all data bytes of the MPE-FEC frame are received, outputting the syndromes to the base-band receiver, and forward error correcting the MPE-FEC frame according to error values corresponding to the syndromes; and a storage device, coupled to the backend system, for storing the extracted data bytes. The base-band receiver generates the error values and error locations according to the received syndromes, and then outputs the error values and error locations to the backend system.

Description

technical field [0001] The present invention relates to a DVB-H (Digital Video Broadcasting Handheld, hereinafter referred to as DVB-H) receiver and related methods, in particular to a DVB-H receiver for performing forward error correction and related methods. Background technique [0002] As more and more sophisticated mobile devices compete for leadership in the electronics field, technology continues to evolve and manufacturers have been able to produce many mobile devices such as cell phones that can handle multimedia streaming content. DVB-H is a very important standard in the multimedia field, which can be used to process digital TV signals and network services. In order to prevent reception problems in certain environments, many error correction mechanisms have also been developed. One of the more common ones is Multi-Protocol Encapsulation-Forward Error Correction (MPE-FEC, Multi-Protocol Encapsulation-Forward Error Correction, hereinafter referred to as MPE-FEC). ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/24
CPCH04L1/0045
Inventor 张志鹏林哲立
Owner MEDIATEK INC