JPH02220519A - Satellite receiver - Google Patents

Abstract

PURPOSE:To attain efficient fine adjustment continuously by providing a fine adjustment key to an operating section, and initiating the automatic fine adjustment mode when excellent reception cannot be executed even when a channel is designated at the time of receiving. CONSTITUTION:In the case of receiving a specific broadcast, an operating section 9 designates a channel of broadcast, relevant video frequency and audio frequency data are sent from a control section 8 to a tuner 2 and the tuning frequency is decided. Moreover, a polarity data is sent to a polarity circuit 11, an antenna actuator 12 is driven, an azimuth angle of the antenna 1 is set to receive the specific broadcast. When no excellent reception is possible regardless of designating the channel, an automatic adjustment key of the operating section 9 is depressed. Then the automatic fine adjustment mode is started, each section is subject to fine adjustment and the control section 8 outputs a picture data representing the state onto a display circuit 16. Since the data is displayed on a CRT 7 via an on-screen circuit 6, the adjustment is implemented efficiently and continuously without a care even when the adjustment takes much time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a satellite receiver that displays fine adjustment details on-screen.

[Conventional technology]

Since the satellite receiver receives radio waves from multiple satellites, it is necessary to adjust not only the tuning frequency but also the polarity so that the parabolic antenna points at the selected satellite.

Furthermore, if audio is sent on a subcarrier, it is necessary to tune the audio separately.

Therefore, these data are collectively assigned in advance to a specific channel selection key, and upon reception, all of the data can be adjusted one after another or simultaneously by one-touch operation of the channel selection key.

At this time, fine adjustment may be necessary, and in this case, fine adjustment is performed for each adjustment.

[Problem to be solved by the invention]

However, making fine adjustments individually for each adjustment is time consuming and inefficient.

An object of the present invention is to allow this fine adjustment to be performed continuously by one-touch operation.

[Means to solve the problem]

To this end, the present invention provides one fine adjustment key, a means for continuously finely adjusting the video frequency, audio frequency, polarity, etc. by operating the fine adjustment key, and an on-screen display of the operation details of the fine adjustment. The display device is configured to include means for displaying information on a CRT.

〔Example〕

Examples of the present invention will be described below. FIG. 1 is a diagram showing a block diagram of a satellite receiver. 1 is a parabolic antenna, 2 is a multi-tuner, 3 is an audio circuit that processes the audio signal output from the tuner 2 and sends it to the speaker 4, 5 is a video circuit that processes a video signal, and 6 is a video output from the video circuit 5. An on-screen circuit switches between the signal and a video signal input from another source, and 7 is a CRT that displays the video output from the on-screen circuit 6.

Reference numeral 8 denotes a control section consisting of a microcomputer, which receives operation command signals from the operation section 9, sends out tuning data to the tuner 2, and sends on-screen video signals to the display circuit IO. , sends antenna azimuth angle data to the polarity circuit 11. 12 is antenna 1
An antenna actuator that determines the azimuth angle of the antenna.

Now, when receiving a specific broadcast, the user specifies the channel of the broadcast using the operation unit 9. As a result, video frequency data and audio frequency data that have been set in advance to correspond to the broadcast are sent from the control section 8 to the tuner 2, and the tuning frequency of the tuner 2 is determined. Further, the polarity data is sent to the polarity circuit 11, the antenna actuator 12 is driven, the azimuth angle of the antenna 1 is set, and the antenna 1 is directed to the broadcasting satellite performing the above-mentioned broadcasting.

From the above, when a specific broadcast of a specific satellite broadcast is received, the audio processed by the audio circuit 3 is sent to the speaker 4, and the video processed by the video circuit 5 is sent to the CRT? It can be played with.

By the way, if good reception is not achieved even after specifying the channel during reception as described above, press the automatic fine adjustment (auto adjustment) key on the operation panel 9. The automatic fine adjustment mode will start and each Minor adjustments will be made to the part.

At this time, image data showing the illumination adjustment is outputted from the control section 8 to the display circuit 10 and displayed on the CRT 7 via the on-screen circuit 6.

FIG. 2 (al to fc) is a diagram showing the pattern of this fine adjustment. 70 is a display screen of the CRT 7, 71 is a message section, 72 is a video synchronization display section, 73 is a polarity display section, 7
4 is an audio tuning display section. Ask risk on the left (*)
indicates the part that is currently being fine-tuned.

In this embodiment, first, the video frequency is finely adjusted by changing the tuning frequency at that time in the child direction, in one direction. From this, when the best point is detected (by AND output of AFT output and AGC output, etc.), the deviation frequency at that time is displayed. 2), the deviation frequency at this time is -5.27 MHz.

Next, fine-tuning of polarity is performed. Here, the adjustment is performed by taking in the A/D value from the polarity circuit 11. Fig. 2 (Fine adjustment is completed at 32'' in C1.

Next, fine tuning of the audio frequency is performed. Here, the adjustment is performed by taking in the SD lock signal. Figure 2 10
), the seek is still continuing.

〔Effect of the invention〕

As described above, in the present invention, various fine adjustments are performed continuously by operating a single fine adjustment key, so the operation is simple, and during the WL adjustment operation, the contents are displayed on the CRT.
Therefore, there is no risk of causing anxiety to the user even if the HJI adjustment takes a long time.

[Brief explanation of the drawing]

Figure 1 is a block diagram of the satellite receiver, Figure 2 (a
) to (c) are explanatory diagrams showing the state of fine adjustment. Agent Patent Attorney Tsuneaki Nagao

Claims (1)

[Claims] (1) One fine-tuning key, means for continuously fine-tuning the video frequency, audio frequency, polarity, etc. by operating the fine-tuning key, and displaying the details of the fine-tuning operation on-screen on a CRT. A satellite receiver comprising: a means for displaying information on a satellite;