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Digit multi-media broadcasting receiver and service method

A multimedia broadcasting and receiver technology, applied in the field of digital multimedia broadcasting reception, can solve the problems of not being able to form multiple program channels, large channel capacity, multi-cost, etc., and achieve the effect of simple animation, enlarged broadcasting effect, and low price

Inactive Publication Date: 2006-05-31
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In addition, in order to provide a complete dynamic image service, it will take up a large channel capacity
In this way, in the case of transmission of

Method used

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  • Digit multi-media broadcasting receiver and service method
  • Digit multi-media broadcasting receiver and service method

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Embodiment Construction

[0027] Other objects, features, and advantages of the present invention will be apparent from the detailed description of the embodiments with reference to the accompanying drawings.

[0028] Hereinafter, embodiments of the digital multimedia broadcasting receiver according to the present invention will be described in detail with reference to the accompanying drawings.

[0029] figure 1 is a block diagram illustrating a digital multimedia broadcasting receiver according to the present invention.

[0030] like figure 1 As shown, the digital multimedia broadcasting (Digital Multimedia Broadcasting: DMB) receiver according to the present invention is composed of the following parts: receiving VHF band 3 (Band-III) of 174-240 MHz or L-band (L-Band) of 1452-1492 MHz The antenna 1 of the radio frequency signal; it is composed of a mixer (Mixer) and a filter (Filter), etc., and converts the digital multimedia broadcasting (hereinafter referred to as "DMB") signal contained in the ...

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Abstract

The invention can receive slides form digital broadcast. It consists of: wireless frequency switching module used to switch the multi media broadcast signal into medium frequency signal; A/D converter used to convert the medium frequency signal into digital signal; digital signal processor used to decode the broadcast image in digital signal, and to separate audio data, video data and text data from broadcast image; still image decoder used to decode the video data processed by digital signal processor; D/A converter used to convert the digital audio data into analog signal; storage device used to store the message inputted by digital signal processor or required by calculation.

Description

technical field [0001] The present invention relates to digital multimedia broadcast reception. Specifically, it relates to a digital multimedia broadcasting receiver capable of receiving slide shows and a multimedia broadcasting service method thereof. Background technique [0002] Recently, with the rapid spread and widespread use of digital audio devices with excellent sound quality such as CDs and DVDs, consumers are increasingly demanding high-quality digital broadcasts. Therefore, countries such as Europe, Canada, and the United States are promoting digital audio broadcasting (Digital audio Broadcasting: DAB) in order to overcome the shortcoming of limited sound quality provided by the original FM broadcasting. The above-mentioned DAB system utilizes a completely different technology from current AM broadcasting or FM broadcasting, and it can not only provide high-quality sound quality service, but also have good reception capability even while moving. At the same ti...

Claims

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Application Information

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IPC IPC(8): H04N5/44H04N7/025H04N7/24
Inventor 李吉城
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI