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Transmitting equipment combined concrete rectangular open caisson basin of CMMB (China Mobile Multimedia Broadcasting) mobile video transmission system and construction method thereof

A technology of transmission system and mobile video, applied in parts of TV system, parts of color TV, TV, etc., can solve the problem of actively uploading data at the sending end

Inactive Publication Date: 2011-05-25
BEIJING PEONY ELECTRONICS GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing CMMB can only support broadcasting of data, that is, the mobile terminals involved in CMMB can only passively receive data transmitted by the transmitter and use it as a receiver, but cannot actively upload data as a sender and support uplink data transmission

Method used

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  • Transmitting equipment combined concrete rectangular open caisson basin of CMMB (China Mobile Multimedia Broadcasting) mobile video transmission system and construction method thereof
  • Transmitting equipment combined concrete rectangular open caisson basin of CMMB (China Mobile Multimedia Broadcasting) mobile video transmission system and construction method thereof

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Embodiment Construction

[0017] The basic idea of ​​the present invention is: the equipment includes a collection unit, a multiplexing unit, a coding unit, a modulation unit, and an RF unit; wherein, the collection unit is used to collect multiple channels of raw data and provide them to the multiplexing unit for processing; the multiplexing unit is used to collect Multiplexing of multiple channels of original data provides one channel of data to the encoding unit for processing; the encoding unit is used to encode one channel of data into a code stream in MPEG2 format, H.264 format or AVS format, and provide different information to different receiver users ID coding, so that the receiver user with the corresponding ID can receive the corresponding data according to the ID; the modulation unit is used to modulate the code stream into a CMMB signal and provide it to the RF unit for processing; the RF unit is used to broadcast the CMMB signal to broadcast TV The channel is transmitted to the receiving e...

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Abstract

The invention discloses a piece of transmitting equipment of a CMMB mobile video transmission system, wherein a collection unit in the equipment is used for collecting multipath original data which is supplied to a multiplexing unit for processing; the multiplexing unit is used for multiplexing the collected multipath original data into a path of data which is supplied to a coding unit for processing; the coding unit is used for coding the path of data into a code stream in format of Moving Picture Experts Group (MPEG) 2, H.264 or AVS (Audio Video Standard); a modulation unit is used for modulating the code stream into a CMMB signal which is supplied to a radio frequency (RF) unit for processing; the RF unit is used for transmitting the CMMB signal to a piece of receiving equipment of the CMMB mobile video transmission system via a radio and TV channel. By the equipment of the invention, a mobile terminal related in the CMMB can be used as a transmitting terminal to upload data actively and support the transmission of uplink data.

Description

technical field [0001] The invention relates to a transmitting technology, in particular to a transmitting device of a China Mobile Multimedia Broadcasting (CMMB, China Mobile Multimedia Broadcasting) mobile video transmission system. Background technique [0002] CMMB is a system for small-screen portable mobile terminals such as mobile phones, PDAs, MP3, MP4, digital cameras, notebook computers, and mobile terminals such as vehicle-mounted TVs, and provides digital broadcast programs for these mobile terminals. These mobile terminals can receive audio data, video Data and other multimedia services. Existing CMMB can only support data dissemination in the form of broadcasting, that is, mobile terminals involved in CMMB can only passively receive data transmitted by the transmitting station and use it as a receiving end, but cannot actively upload data as a sending end to support uplink data transmission. Contents of the invention [0003] In view of this, the main purpos...

Claims

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Application Information

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IPC IPC(8): H04N5/38H04N5/40H04N7/26H04N21/2365
Inventor 戴闽鲁
Owner BEIJING PEONY ELECTRONICS GROUP CORP
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