Tuner device system integrated with satellite selection function

Abstract

The utility model is suitable for the technical field of multi-satellite television reception, and provides a tuner device system integrated with a satellite selection function, so as to share one satellite antenna to receive television programs of three adjacent satellites. Comprising a common low-cost satellite tuner, a satellite tuner with a satellite change-over switch function, a radio frequency connecting line and a satellite tuner support part. The two common low-cost satellite tuners are used for reducing the frequency of received KU full-band 10.7-12.75 GHz satellite signals into 950-2150 MHz intermediate-frequency signals, then the intermediate-frequency signals are transmitted to the satellite tuner with a satellite switching switch function through the two radio frequency connectors, the three tuners are fixedly installed on the satellite tuner support, and the two common low-cost satellite tuners are used for transmitting the intermediate-frequency signals to the satellite tuner support. The satellite tuner with the satellite change-over switch function transmits signals to the satellite set top box through a radio frequency connecting line, the satellite set top box controls the satellite tuner with the satellite change-over switch function through a DiSEqC instruction, and satellite television nodes of three adjacent satellites are watched.

Description

Technical Field

[0001] This invention belongs to the field of multi-satellite satellite reception technology, and particularly relates to a high-frequency head device system with integrated satellite selection function. Background Technology

[0002] With the increasing abundance of satellite TV programs, the demand for simultaneously receiving and watching multiple satellite TV programs is constantly growing. To meet this demand, one can choose to add satellite antennas, satellite LNBs, and satellite switching switches to achieve the requirement of receiving multiple satellites, or design and develop an integrated die-cast multi-satellite LNB based on the location and polarization angle of the receiving satellites.

[0003] However, multi-satellite receivers are inconvenient to install and costly, especially in high-rise buildings where rooftop space is limited and there isn't enough room to install multiple satellite antennas. Furthermore, multi-satellite receivers have long design cycles, high mold-making costs, and high transportation costs. Summary of the Invention

[0004] The purpose of this invention is to provide a high-frequency head device system with integrated star selection function, which aims to solve the technical problems existing in the prior art as identified in the background art.

[0005] This invention is implemented as follows: a high-frequency head device system integrating satellite selection function, the system comprising:

[0006] The system includes a satellite LNB (Low Frequency Header) for satellite A, satellite LNB for satellite B, satellite LNB for satellite C, an RF cable assembly, and an LNB bracket. The satellite LNB for satellite B is used to output signals and transmit them to the satellite set-top box via the RF cable assembly. The satellite set-top box sends DiSEqC commands to control the switching of signals from the three satellites.

[0007] The LNBs for satellites A, B, and C are all mounted on the LNB bracket, and the LNBs for satellites A and B, as well as the LNBs for satellites C and B, are connected by radio frequency cables.

[0008] As a further embodiment of the present invention, the radio frequency connection line group includes a D-radio frequency connection line, a D-radio frequency connection line and a D-radio frequency connection line;

[0009] The D radio frequency connection cable is used to connect the LNB of satellite A and the LNB of satellite B.

[0010] The D radio frequency connection cable is used to connect the C satellite LNB and the B satellite LNB;

[0011] The D radio frequency connection cable is the output radio frequency connection cable of the B satellite LNB.

[0012] As a further embodiment of the present invention, after receiving the horizontally polarized and vertically polarized satellite signals, the A satellite LNB amplifies them through a low-noise amplifier and transmits them to the phase-locked loop down-frequency integrated circuit. The received 10.7-12.75GHz satellite signals are down-frequencyd to 950-2150MHz intermediate frequency signals and output to the B satellite LNB through the radio frequency connection line.

[0013] As a further embodiment of the present invention, after receiving the horizontally polarized and vertically polarized satellite signals, the C satellite LNB amplifies them through a low-noise amplifier and transmits them to the phase-locked loop down-frequency integrated circuit. The received 10.7-12.75GHz satellite signals are down-frequencyd to 950-2150MHz intermediate frequency signals and output to the B satellite LNB through the radio frequency connection line.

[0014] As a further embodiment of the present invention, after receiving the horizontally polarized and vertically polarized satellite signals, the B satellite LNB amplifies them through a low-noise amplifier and transmits them to a phase-locked loop down-frequency integrated circuit. The received 10.7-12.75GHz satellite signals are down-frequencyd to 950-2150MHz intermediate frequency signals and then transmitted to the satellite signal switching circuit.

[0015] The satellite signal switching circuit simultaneously receives signals from both satellite LNB A and satellite LNB B. The satellite switching switch circuit outputs a signal through the output port of satellite LNB B, and the signal is transmitted to the satellite set-top box via an RF connection cable.

[0016] As a further embodiment of the present invention, the A satellite LNB includes:

[0017] A vertically polarized low-noise amplifier, A horizontally polarized low-noise amplifier, and A phase-locked loop down-conversion integrated circuit.

[0018] As a further embodiment of the present invention, the B-satellite LNB includes:

[0019] B Vertical polarization low noise amplifier, B horizontal polarization low noise amplifier and B phase-locked loop down-conversion integrated circuit.

[0020] As a further embodiment of the present invention, the C-satellite LNB includes:

[0021] C-type vertically polarized low-noise amplifier, C-type horizontally polarized low-noise amplifier, and C-type phase-locked loop down-conversion integrated circuit.

[0022] The beneficial effects of this invention are:

[0023] This device system is low in cost, simple to operate, and easy to install and debug. It integrates the satellite switching device that originally required an external connection into the satellite LNB, giving the satellite LNB the function of a satellite switching switch.

[0024] By connecting three LNBs together with two RF cables and mounting them on an LNB bracket, the purpose of receiving and watching programs from three adjacent satellite TV channels can be achieved. Attached Figure Description

[0025] Figure 1 A rear view of a high-frequency head device system with integrated star selection function provided by this utility model;

[0026] Figure 2 A circuit diagram of a high-frequency head device system with integrated star selection function provided by this utility model;

[0027] Figure 3 A side view of a high-frequency head device system with integrated satellite selection function provided by this utility model.

[0028] In the attached diagram: 1. A. Satellite LNB; 2. B. Satellite LNB; 3. C. Satellite LNB; 4. LNB bracket; 5. D. RF connection cable; 6. D. RF connection cable; 7. D. RF connection cable; 8. A. Vertical polarization low noise amplifier; 9. A. Horizontal polarization low noise amplifier; 10. A. Phase-locked loop (PLL) frequency reduction integrated circuit; 11. B. Vertical polarization low noise amplifier; 12. B. Horizontal polarization low noise amplifier; 13. B. PLL frequency reduction integrated circuit; 14. C. Vertical polarization low noise amplifier; 15. C. Horizontal polarization low noise amplifier; 16. C. PLL frequency reduction integrated circuit; 17. Satellite signal switching circuit. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0030] like Figure 1 and Figure 3 As shown, a high-frequency head device system integrating star selection function is disclosed, the system comprising:

[0031] The system includes satellite LNB 1 (A), satellite LNB 2 (B), satellite LNB 3 (C), RF connection cable assembly, and LNB bracket 4. Satellite LNB 2 (B) is used to output signals and transmit them to the satellite set-top box via the RF connection cable assembly. The satellite set-top box sends DiSEqC commands to control the switching of signals from the three satellites.

[0032] The system includes two general-purpose low-cost satellite LNBs, satellite LNB 1 (A) and satellite LNB 3 (C), and a satellite LNB 2 (B) with integrated satellite selection function. Satellite LNB 2 has two input ports and one output port. The two input ports are connected to the signals of the two general-purpose low-cost satellite LNBs via RF connection cables. The one output port outputs a signal to the satellite set-top box for signal reception. The three satellite LNBs are fixed to the satellite antenna via LNB brackets 4 to receive television programs from three adjacent satellites.

[0033] The LNB 1 for satellite A, the LNB 2 for satellite B, and the LNB 3 for satellite C are all mounted on the LNB bracket 4. The LNB 1 for satellite A and the LNB 2 for satellite B, as well as the LNB 3 for satellite C and the LNB 2 for satellite B, are connected by radio frequency connecting cables.

[0034] The RF cable assembly uses a 75-ohm coaxial cable and is waterproof and UV resistant.

[0035] The LNB bracket 4 is made of ABS material with added UV-resistant materials, giving it UV protection. The position for installing the LNB on the bracket was determined through simulation and actual reception verification.

[0036] like Figure 1 and Figure 2 As shown, the radio frequency connection line group includes D radio frequency connection line 5, D radio frequency connection line 6 and D radio frequency connection line 7;

[0037] The D-radio connection cable 5 is used to connect satellite A LNB 1 and satellite B LNB 2;

[0038] The D-radio connection cable 6 is used to connect the C-satellite LNB 3 and the B-satellite LNB 2;

[0039] The D radio frequency connection line 7 is the output radio frequency connection line of the B satellite LNB 2.

[0040] The design of general-purpose, low-cost LNBs for satellites A (LNB 1) and C (LNB 3) involves horizontal and vertical polarization to amplify the received satellite signals with low noise. The amplified signals are then transmitted to a phase-locked loop (PLL) frequency reduction integrated circuit, which reduces the received 10.7-12.75 GHz satellite signals to an intermediate frequency (IF) of 950-2150 MHz. The signals are then output from the output port to the LNB with integrated satellite selection function.

[0041] The design of satellite LNB B with integrated satellite selection function involves horizontal and vertical polarization amplifying the received satellite signals with low noise, and then transmitting the amplified signals to the phase-locked loop down-frequency integrated circuit. The received 10.7-12.75GHz satellite signals are down-frequencyd to 950-2150MHz intermediate frequency signals, and then transmitted to the satellite signal switching circuit 17. The satellite switching circuit also receives signals from two other general-purpose low-cost satellite LNBs before outputting them.

[0042] Among them, the components of satellite LNB 1 (A), satellite LNB 2 (B), and satellite LNB 3 (C) are made by die casting, while the outer shell and satellite LNB bracket 4 are made by injection molding.

[0043] The satellite signal switching circuit 17 simultaneously receives signals from LNB 1 of satellite A and LNB 2 of satellite B. The satellite switching switch circuit outputs a signal through the output port of LNB 2 of satellite B, and the signal is transmitted to the satellite set-top box through the radio frequency connection line.

[0044] like Figure 2 As shown, the A satellite LNB 1 includes:

[0045] A vertically polarized low-noise amplifier 8, A horizontally polarized low-noise amplifier 9, and A phase-locked loop down-conversion integrated circuit 10.

[0046] like Figure 2 As shown, the B satellite LNB 2 includes:

[0047] B Vertical polarization low noise amplifier 11, B Horizontal polarization low noise amplifier 12 and B Phase-locked loop down-conversion integrated circuit 13.

[0048] like Figure 2 As shown, the C-satellite LNB 3 includes:

[0049] C-vertical polarization low noise amplifier 14, C-horizontal polarization low noise amplifier 15, and C-phase-locked loop down-conversion integrated circuit 16.

[0050] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-frequency head device system integrating satellite selection function, characterized in that, The system includes: A satellite LNB (1), B satellite LNB (2), C satellite LNB (3), RF connection cable group and LNB bracket (4), wherein the B satellite LNB (2) is used to output signals and transmit them to the satellite set-top box through the RF connection cable group, and sends DiSEqC command through the satellite set-top box to control the switching of the three satellite signals; The A satellite LNB (1), B satellite LNB (2), and C satellite LNB (3) are all mounted on the LNB bracket (4). The A satellite LNB (1) and the B satellite LNB (2), as well as the C satellite LNB (3) and the B satellite LNB (2), are connected by radio frequency connection cables.

2. The system according to claim 1, characterized in that, The radio frequency connection line group includes D radio frequency connection line (5), D radio frequency connection line (6) and D radio frequency connection line (7); The D radio frequency connection cable (5) is used to connect the A satellite LNB (1) and the B satellite LNB (2); The D radio frequency connection cable (6) is used to connect the C satellite LNB (3) and the B satellite LNB (2); The D radio frequency connection line (7) is the output radio frequency connection line of the B satellite LNB (2).

3. The system according to claim 1, characterized in that, After receiving the horizontally and vertically polarized satellite signals, the A satellite LNB (1) amplifies them through a low-noise amplifier and transmits them to the phase-locked loop down-frequency integrated circuit. The received 10.7-12.75GHz satellite signals are down-frequencyd to 950-2150MHz intermediate frequency signals and output to the B satellite LNB (2) through the radio frequency connection line.

4. The system according to claim 2, characterized in that, After receiving the horizontally and vertically polarized satellite signals, the C satellite LNB (3) amplifies them through a low-noise amplifier and transmits them to the phase-locked loop down-frequency integrated circuit. It then down-frequencys the received 10.7-12.75GHz satellite signals to 950-2150MHz intermediate frequency signals and outputs the signals to the B satellite LNB (2) through the radio frequency connection line.

5. The system according to claim 3, characterized in that, After receiving the horizontally polarized and vertically polarized satellite signals, the B satellite LNB (2) amplifies them through a low-noise amplifier and transmits them to the phase-locked loop frequency reduction integrated circuit. The received 10.7-12.75GHz satellite signals are down-frequencyd to 950-2150MHz intermediate frequency signals and then transmitted to the satellite signal switching circuit (17). The satellite signal switching circuit (17) simultaneously receives signals from both satellite A LNB (1) and satellite B LNB (2). The satellite switching circuit outputs signals through the output port of satellite B LNB (2), and the signals are transmitted to the satellite set-top box via the radio frequency connection line.

6. The system according to claim 1, characterized in that, The A satellite LNB (1) includes: A vertically polarized low-noise amplifier (8), A horizontally polarized low-noise amplifier (9), and A phase-locked loop down-conversion integrated circuit (10).

7. The system according to claim 1, characterized in that, The B satellite LNB (2) includes: B Vertical polarization low noise amplifier (11), B Horizontal polarization low noise amplifier (12), and B Phase-locked loop down-conversion integrated circuit (13).

8. The system according to claim 1, characterized in that, The C-satellite LNB (3) includes: C vertical polarization low noise amplifier (14), C horizontal polarization low noise amplifier (15), and C phase-locked loop down-conversion integrated circuit (16).

Images