Speedily searching satellite tuner and satellite television system
A technology of TV signal and high-frequency head, which is applied in the field of structural improvement of satellite high-frequency head, can solve the inconvenience of dish antenna and other problems, and achieve the effect of low cost, simple operation and good stability
Inactive Publication Date: 2012-10-10
余婷婷
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Problems solved by technology
[0005] In summary, the purpose of the present invention is to solve the technical problem of inconvenience when installing and adjusting the dish antenna in the traditional way and propose a satellite tuner and satellite TV system for quickly searching for TV signals
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[0022] The present invention will be further described below in conjunction with accompanying drawing and preferred embodiment:
[0023] Referring to Figure 1, figure 2 and Figure 4 Shown in, a kind of satellite tuner 1 of fast search TV signal of the present invention comprises a support platform housing 11, is provided with satellite tuner body 12, signal demodulation circuit 13 in support platform housing 11 And signal indicating device 14.
[0024] The satellite tuner body 12 still works with the same function as the traditional satellite tuner. In the specific implementation process, the signal demodulation circuit 13 can also be integrated in it to reduce product specifications and cost.
[0025] The signal demodulation circuit 13 is mainly used to receive the satellite signal strength indication signal returned by the satellite signal receiver, and then demodulate the indication signal associated with the satellite signal strength indication signal received by the sa...
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The invention provides a speedily searching satellite tuner and a satellite television system, relates to the technical field of satellite television signal receiving devices, and particularly relates to the improvement of a structure of a satellite tuner. The technical problem that the dish antenna is inconveniently installed and adjusted in the traditional manner is solved. The speedily searching satellite tuner comprises a support platform shell, wherein a satellite tuner main body, a signal demodulator circuit and a signal indication device are arranged in the support platform shell. The required cost is low, the stability for installing the traditional dish antenna is high, the special external device is unnecessary, and the operation is simple. A signal of the satellite signal strength is fed back to the signal demodulator circuit by a satellite signal receiver; the signal demodulator circuit sends an indication signal according to the signal of the satellite signal strength, soas to drive the signal indication device; and the signal indication device sends a corresponding antenna status signal for reminding the installation personnel if the dish antenna is at optimum mounting position and angle at real time.
Description
technical field [0001] The invention relates to the technical field of satellite TV signal receiving devices, in particular to the structural improvement of a satellite tuner. Background technique [0002] Satellite LNB is also called Low Noise Reducer (LNB). Its internal circuit includes a low-noise converter and a down-converter, which completes the functions of low-noise amplification and frequency conversion, and at the same time serves as the receiving front end of MMDS (multi-channel multi-point distribution service, also called wireless cable). The working principle of the satellite tuner is to reduce the frequency of satellite signals, such as 3.4 to 4.2GHz (C band) or 11.7 to 12.75GHz (Ku band) or 20 to 22GHz (Ka band) to the frequency of ordinary satellite signal receivers. It can demodulate the intermediate frequency signal of 950 ~ 2150MHZ frequency. A satellite signal receiver refers to an electronic device that converts the output signal of a satellite tuner ...
Claims
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IPC IPC(8): H04N7/20H04B7/185H04B17/00H01Q19/12
Inventor 李伟强李伟基
Owner 余婷婷