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Digital multimedia signal receiver and its receiving method

A digital signal and receiver technology, applied in the field of digital multimedia signal receiver and its receiving, can solve the problem that digital multimedia receiver cannot work in various digital multimedia broadcasting systems, etc.

Active 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

[0010] As is well known, in the prior art, there is no digital multimedia receiver that handles both multi-carrier modulated digital multimedia signals and single-carrier modulated digital multimedia signals, that is, conventional digital multimedia receivers cannot work in a variety of digital multimedia broadcasting in the system

Method used

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  • Digital multimedia signal receiver and its receiving method
  • Digital multimedia signal receiver and its receiving method
  • Digital multimedia signal receiver and its receiving method

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Embodiment Construction

[0029] Embodiments of the invention will now be described in detail, examples of which are shown in the accompanying drawings, wherein like reference numerals refer to like parts throughout. The embodiments are described below in order to explain the present invention by referring to the figures.

[0030] image 3 is a block diagram showing a digital multimedia signal receiver according to a first embodiment of the present invention.

[0031] Such as image 3 As shown, the digital multimedia signal receiver includes: an antenna 305 , a tuner 306 , an ADC 310 , a controller 320 , a single-carrier signal processing unit 330 , and a multi-carrier signal processing unit 340 .

[0032] Single carrier signal processing unit 330 includes: SC (single carrier) demodulation unit 3301, SC equalizer 3302, SC-FEC unit 3303, SC descrambler 3304, and SC synchronization unit 3305; and multi-carrier signal processing unit 340 includes : MC (multi-carrier) demodulation unit 3401 , MC equaliz...

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Abstract

The invention consists of an ADC used to convert the received analog signal into the digital signal, a controller used to determine the modulation mode, a single carrier signal processor used to process single carrier demodulation signal, and a multi carrier demodulator used to process multi carrier demodulation signal. Wherein, the controller detects at least one reference signal from single carrier signal processor and the multi carrier signal processor, and in term of the reference signal, determines the demodulation mode of the digital signal. And when the modulation mode of the digital signal is indicated as a single carrier modulation mode, the controller sends the digital signal from ADC to the single carrier signal processor to process it. When the modulation mode of the digital signal is indicated as a multi carrier modulation mode, the controller sends the digital signal from ADC to the multi carrier signal processor to process it.

Description

technical field [0001] The invention relates to a digital multimedia signal receiver and its receiving method. More particularly, the present invention relates to a digital multimedia signal receiver for processing single-carrier modulation signals and multi-carrier modulation signals, which can automatically process single-carrier modulation signals and multi-carrier modulation signals according to the modulation mode of the received signal one. Background technique [0002] In the era of multimedia communication and broadcasting, countries around the world are digitizing analog broadcasting. Especially in developed countries like the United States, Europe, and Japan, digital broadcasting systems have been developed and put into practical use. According to such rapid development, in various countries, different standards have been proposed for digital broadcasting. [0003] On December 24, 1996, the US Federal Communications Commission (FCC) propo...

Claims

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Application Information

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IPC IPC(8): H04N5/44H04N5/46H04L27/00H04N21/41
Inventor 金纪甫河吉植朴赞燮
Owner SAMSUNG ELECTRONICS CO LTD
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