Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and system for transmitting and receiving over-the-air television signals of the terrestrial digital broadcasting type and associated transmitter, receiver system, switching modulator and receiver

A technology of terrestrial digital broadcasting and wireless TV, which is applied in the direction of rebroadcasting broadcasting devices between broadcasting stations, broadcasting information relay, broadcasting specific applications, etc.

Active Publication Date: 2018-11-23
SARONIKOS TRADING & SERVICES UNIPESSOAL LDA
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Therefore, it is an object of the present invention to indicate a method and system for transmitting and receiving radiotelevision signals of the terrestrial digital broadcasting type and related equipment, which solves the resulting in disadvantages

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and system for transmitting and receiving over-the-air television signals of the terrestrial digital broadcasting type and associated transmitter, receiver system, switching modulator and receiver
  • Method and system for transmitting and receiving over-the-air television signals of the terrestrial digital broadcasting type and associated transmitter, receiver system, switching modulator and receiver
  • Method and system for transmitting and receiving over-the-air television signals of the terrestrial digital broadcasting type and associated transmitter, receiver system, switching modulator and receiver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] through the pair such as image 3 The working description of the distribution technology over the coaxial cable shown, the technical description and installation of the proposed inventive solution are self-evident, it should be noted that the channels in which over-the-air TV programs are distributed via satellite reception are allocated for LTE services Channels in the 800MHz band (and in the future, channels in the 700MHz band).

[0038] For example, due to the current state of disuse of channels previously allocated to terrestrial television broadcasting, nine different sets of television programs (multiplex or MUX) may be transmitted via satellite in the band 11-12GHZ allocated to this service, and convert each of them to the first intermediate frequency l after receiving them by the antenna system 1 st The IF band (QPSK-modulated with DVB-S, or even 8-PSK-modulated with DVB-S2), switches in UHF channels 61-69 (with DVB-T or DVB-T2 typical COFDM modulation). This ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method is described for the transmission and reception of radiotelevision signals of the terrestrial digital broadcasting type, said radiotelevision signals comprising a plurality of radiotelevision programs or services receivable by a receiver in a certain frequency band, wherein at least a portion of said frequency band has been discontinued for the radiotelevision signals of the terrestrial digital broadcasting type and assigned to a different service, in particular to a mobile telephony service, such as the LTE type, wherein it is provided to transmit satellite type radiotelevision signals containing said receivable radiotelevision programs or services from which radiotelevision signals of the terrestrial digital broadcasting type are derived that are placed in channels belonging to said portion of said frequency band, said radiotelevision signals of the terrestrial digital broadcasting type not being irradiated, but conveyed via cable to said receiver.

Description

technical field [0001] The invention relates to a method and related equipment for transmitting and receiving over-the-air television signals of the terrestrial digital broadcasting type. Background technique [0002] refer to figure 1 , so far, the reception and subsequent distribution of television channels for terrestrial and satellite broadcasting have been via individual or shared coaxial cable systems 1' using the same radio frequency channels (terrestrial broadcasting, VHF and UHF bands) as for over-the-air television signal broadcasting radio frequency channels, or by converting radio television signals received by satellites from the 11-12 GHz band to a first intermediate frequency1 st 950-2150MHz in the IF band where they can be distributed over cables without excessive attenuation. [0003] More particularly, satellite-type over-the-air television signals are received by a satellite antenna 2' associated with a low-noise block converter 3' or LNB, which shifts t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/236
CPCH04H20/63H04H20/06H04N21/23608H04N21/6112H04N21/6143H04N21/64707
Inventor 罗伯特·詹姆斯
Owner SARONIKOS TRADING & SERVICES UNIPESSOAL LDA