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Digital multimedia receiver

A multimedia and receiver technology, applied in the field of digital multimedia receivers, can solve the problem that a digital multimedia receiver cannot simultaneously receive a single-carrier modulated signal and a multi-carrier modulated signal, etc.

Inactive Publication Date: 2006-07-05
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] As we all know, traditional digital multimedia receivers cannot receive single-carrier modulated signals and multi-carrier modulated signals at the same time, which is very inconvenient

Method used

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  • Digital multimedia receiver
  • Digital multimedia receiver
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Embodiment Construction

[0039] Now, embodiments of the present invention will be described in detail, examples of which are illustrated in the accompanying drawings, in which like reference numerals designate like parts throughout. The embodiments are described below in order to explain the present invention by referring to the figures.

[0040] image 3 is a block diagram of a digital multimedia receiver for processing single-carrier modulated signals and multi-carrier modulated signals according to the first embodiment of the present invention.

[0041] refer to image 3 , the digital multimedia receiver includes: a tuner 310 for tuning the received multimedia signal to a corresponding frequency band, wherein the multimedia signal is a signal modulated by a single carrier or a signal modulated by a multi-carrier; ADC (Analog-to-Digital Converter) 320, for converting the tuned signal from the tuner 310 into a digital signal; a demodulation unit 330, including a demodulator 331 for demodulating and...

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Abstract

The invention consists of an ADC, a synchronizing unit used to synchronize the digital signal from the ADC in order to generate a synchronous signal in term of instruction of modulation mode, a demodulator used to demodulate the synchronous signal in term of the instruction of the modulation mode, and a channel decoder used to decode the demodulated signal and to output the decoded signal. The synchronizing unit includes a time recovery module for use in compensating the time offset and a carrier recovery module used to compensating the frequency error.

Description

technical field [0001] The present invention relates to a digital multimedia receiver, in particular to a receiver for processing single-carrier modulated signals and multi-carrier modulated signals. Background technique [0002] In the era of multimedia communication and broadcasting, all countries in the world are digitizing analog broadcasting, especially in developed countries such as the United States, Europe and Japan, where digital broadcasting systems have been developed and put into use. With its rapid development, different standards for digital broadcasting have been proposed in different countries. [0003] On December 24, 1996, the US Federal Communications Commission (FCC) proposed the Advanced Television Systems Committee (ATSC) digital television standard as the next-generation television broadcasting standard. All terrestrial broadcast operators must comply with ATSC standards for the specification of video / audio compression, pack...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/44H04N5/46H04L27/00H04N21/43
Inventor 郭征元河吉植
Owner SAMSUNG ELECTRONICS CO LTD