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Mobile multimedia broadcast receiving apparatus, receiving card and receiving terminal

A mobile multimedia and broadcast receiving technology, applied in broadcasting devices, broadcasting-specific applications, broadcasting-related systems, etc., can solve the problems of increasing investment and increasing the development cycle of receiving terminals, and achieves the effect of saving investment and shortening development cycle.

Inactive Publication Date: 2009-01-07
INNOFIDEI TECHNOLOGIES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, for the use of CMMB signal receiving equipment, for users such as receiving terminal manufacturers, in order to support the CMMB receiving function in the receiving terminal, it is necessary to provide technical support in both software and hardware, which will undoubtedly increase the development cycle of the receiving terminal. issues such as increasing investment

Method used

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  • Mobile multimedia broadcast receiving apparatus, receiving card and receiving terminal
  • Mobile multimedia broadcast receiving apparatus, receiving card and receiving terminal

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Embodiment Construction

[0055] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0056] figure 1 It is a schematic diagram of the composition structure of the mobile multimedia broadcast receiving device of the present invention, such as figure 1 As shown, the device includes a radio frequency signal receiving and converting unit and a CMMB signal receiving unit, wherein,

[0057] The radio frequency signal receiving and converting unit is used to amplify and filter the tiny radio frequency signal received through the antenna, and convert it into a baseband signal. The baseband signal can be an analog baseband signal, such as an analog zero-IF signal, or a low-IF signal, or an analog IQ signal, or a digital baseband signal, such as a digital low-IF signal, or a digital zero-IF signal, or a digital baseband IQ signal.

[00...

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Abstract

The invention discloses a receiving device for mobile multimedia broadcast (CMMB), a receiving card and a receiving terminal thereof. The receiving device for the mobile multimedia broadcast comprises radio frequency signal receiving and transformation as well as CMMB receiving, therefore, the users can conveniently realize the support for CMMB receiving function without adding hardware design. By setting the CMMB receiving function in the receiving card, the receiving card has the CMMB signal receiving function, therefore, the users only need to use the receiving card as usual, the receiving card is inserted into the receiving terminal so as to conveniently realize the support for the CMMB receiving function and receive CMMB digital TV signal. Receiving terminal manufacturer need not to add extra software and hardware technical support, therefore, the development cycle of the receiving terminal is shortened and the investment is saved.

Description

technical field [0001] The present invention relates to a mobile multimedia broadcast technology, in particular to a mobile multimedia broadcast receiving device, a receiving card and a receiving terminal. Background technique [0002] China Mobile Multimedia Broadcasting Technology Alliance is referred to as China Mobile Multimedia Broadcasting (CMMB, China Mobile Multimedia Broadcasting). [0003] In order to receive the CMMB signal, the corresponding CMMB receiving device needs to be configured. The working principle of the CMMB receiving device is roughly as follows: the received analog signal is converted into a digital signal after analog / digital conversion, the digital signal is processed by channel synchronization, the CMMB signal is detected and extracted, and the extracted CMMB signal is demodulated. Obtain CMMB audio and video streams that conform to the CMMB standard. [0004] Usually, a CMMB signal receiving device is used on a receiving terminal, so that the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04H60/91H04H20/57
Inventor 张辉王西强胡长俊吕悦川
Owner INNOFIDEI TECHNOLOGIES INC