KR100304426B1 - Theapparatus for switching favorite channel on broadcasting satellite receiver - Google Patents

Abstract

According to the present invention, when a user inputs a preferred channel, a satellite broadcast receiver for receiving satellite broadcasts compares whether the channel selected at the time of power-on before matching with the preferred channel is switched to the preferred channel. The preferred channel switching device of the receiver. Input of one channel that users prefer the most preferred channel by each ranking and a plurality of channels generally preferred through OSD screen so that the selected channel can be switched to the user's preferred channel when the satellite receiver is powered on. The present invention provides a preferred channel switching device for a satellite broadcast receiver which automatically switches to a preferred channel by comparing the selected channel with a previously selected channel when the power is turned on and watching the video.

Description

{Theapparatus for switching favorite channel on broadcasting satellite receiver}

According to the present invention, when a user inputs a preferred channel, a satellite broadcast receiver for receiving satellite broadcasts compares whether the channel selected at the time of power-on before matching with the preferred channel is switched to the preferred channel. It relates to a preferred channel switching device of the receiver.

Referring to the block diagram of Fig. 1 the reception process of the satellite broadcast through the satellite broadcast receiver is as follows.

1 is a block diagram of a general satellite broadcast receiver.

Referring to FIG. 1, a general satellite broadcast receiver selects an antenna 10 receiving a satellite broadcast signal transmitted from a broadcast satellite and a channel selected by a user from the satellite broadcast signal received from the antenna 10. A desired packet table is selected from the channel unit 20 for frequency amplification, analog conversion, demodulation and application to the demultiplexer 30, and PID (Packet ID) information of the digital satellite broadcast signal applied from the channel unit 20. Depacketizing, the demultiplexer 30 to be applied to the descrambler (40) to descramble the scrambled broadcast signal in the case of euro-pro, and the demultiplexer (30) applied Compression of the descrambler 40 which descrambles the scrambled broadcast signal and reapplies it to the demultiplexer 30, and compresses the depacketized broadcast signal in the demultiplexer 30. The MPEG A / V decoder 50 and the MPEG A / V decoder 50 apply the video signal to the NTSC encoder 60 and the audio signal to the audio D / A converter 70. NTSC encoder 60 to process the video signal out of the unpacked digital broadcast signal to the TV monitor, audio D / A converter 70 to process the audio signal to the speaker, and to operate all operations of the satellite broadcast receiver wirelessly It is composed of a remote controller 90 for controlling.

Referring to the operation of the general satellite broadcast receiver having the above configuration, when the user powers on the satellite broadcast receiver using the remote controller 90, the antenna 10 is a channel part of the satellite broadcast signal transmitted from the broadcast satellite The channel selected in (20) is selected, digitally converted from intermediate frequency amplification, analog, and then demodulated and applied to the demultiplexer 30. The digital broadcast signal selected and demodulated by the channel unit 20 depacketizes a desired packet table among PID (Packet ID) information of the digital satellite broadcast signal in the demultiplexer 30, In this case, the scrambler 40 is applied to the descrambler 40 so as to descramble the scrambled broadcast signal. The scrambled broadcast signal applied from the demultiplexer 30 to the descrambler 40 is descrambled and applied to the demultiplexer 30 again. The depacketized broadcast signal is decompressed by the MPEG A / V decoder 50 in the demultiplexer 30. The video signal is NTSC encoder 60 and the audio signal is audio D / A in the digital broadcast signal. The converter 70 is separated and sent out. The video signal transmitted from the MPEG A / V decoder 50 to the NTSC encoder 60 is processed into a video signal suitable for output and output to the TV monitor, and the audio signal is output from the audio D / A converter 70. The audio signal is processed to be output to the speaker. In addition, in the above, the user can select a desired channel using the remote controller 90, and the channel once selected is always kept constant regardless of whether the power is on or off.

In the general satellite broadcast receiver as described above, the channel selected by the user is maintained as long as there is no channel change even when the power is turned off and then on again, so there is a problem that the user must always perform channel search in order to select a desired channel.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a preferred channel switching device of the satellite broadcast receiver so that the selected channel can be automatically switched to the user's preferred channel when the power is on. have.

As a technical idea for achieving the above object, key input means for inputting a preferred channel, OSD means for outputting a preferred channel input screen, memory means for storing the input user favorite channel, and stored in the memory means The invention comprises a comparison means for comparing whether a preferred channel and a preselected channel at power-on match, and control means for switching a channel to an input preferred channel if it does not match according to a determination result of the comparison means.

1 is a block diagram of a typical satellite broadcast receiver

2 is a block diagram for explaining a preferred channel switching device of the present invention satellite broadcast receiver;

3 is an exemplary view showing an OSD initial screen for inputting a favorite channel;

<Description of the symbols for the main parts of the drawings>

5: broadcast satellite 10: antenna

15 converter 20 channel portion

20a: Tuner 20b: A / D Converter

20c: Link IC 30: Demultiplexer

40: descrambler 50: MPEG A / V decoder

60: NTSC encoder 70: audio D / A converter

75: OSD 80: controller

85: preferred channel memory section 90: remote controller

95: comparator

Hereinafter, with reference to the accompanying drawings with respect to the configuration and operation of the embodiment of the present invention will be described.

2 is a block diagram illustrating a preferred channel switching device of the present invention satellite broadcast receiver.

Referring to FIG. 2, the present invention is composed of an antenna 10 for receiving a satellite broadcast signal transmitted from a broadcast satellite 5, a low noise block-down convert (LNB), a waveguide (Feedhorn), a polarotor, and the like. The low-noise and high-amplification of the broadcast signal received by the antenna 10 at a frequency of 1/10, that is, converts the received signal of 12 GHz into an intermediate frequency of 1 GHz as it is an FM signal, and amplifies it to the required level to provide a channel unit 20 Tuner 20a for tuning the channel selected by the user in the 1 GHz FM broadcast signal sent from the antenna 10 and the converter 15, and the tuner 20a. A / D converter 20b for converting the converted broadcast signal from analog to digital and a link transmitted to the demultiplexer 30 by demodulating and channel decoding the broadcast signal converted into digital in the A / D converter 20b. Channel section 20 composed of ICs 20c, and channel section 2 Depacketizing the desired packet table among the PID (Packet ID) information of the digital satellite broadcasting signal applied in (0), and in case of Europro, descrambler to descramble the scrambled broadcasting signal. The demultiplexer 30 to be applied to the demultiplexer 30, the demultiplexer 30 to descramble the scrambled broadcast signal applied from the demultiplexer 30 and reapply to the demultiplexer 30, and the demultiplexer 30 The MPEG A / V decoder 50 which decompresses the depackaged broadcast signal and applies the video signal to the NTSC encoder 60 and the audio signal to the audio D / A converter 70, and the MPEG A NTSC encoder 60 for processing video signals among digital broadcast signals decompressed by the / V decoder 50 and outputting them to a TV monitor, and audio D / A converter 70 for processing audio signals and outputting them to a speaker. Satellite broadcasting A remote controller 90 for wirelessly controlling all operations of the device, a preferred channel memory unit 85 for storing a user's preferred channel according to the input of the remote controller 90, and the preferred channel memory unit 85 OSD 75 to input the user favorite channel to the NTSC encoder 60 under the control of the controller 80, and the preferred channel stored in the preferred channel memory unit 85 and power on The comparator 95 which compares the previous selection channel and applies it to the controller 80, and controls all the above functions, and in particular, when the user prefers to input the channel, the OSD 75 and the preferred channel memory unit ( 85, and a controller 80 for switching the channel to the input preferred channel if it does not match according to the determination result of the comparator 95.

Referring to the operation of the present invention having the above configuration, when the user powers on the satellite broadcast receiver using the remote controller 90, the antenna 10 receives the satellite broadcast signal transmitted from the broadcast satellite (5) The broadcast signal received by the antenna 10 is low noise and amplified at a frequency of 1/10 at the converter 15, that is, the 12 GHz received signal is converted into an intermediate frequency of 1 GHz as it is an FM signal and the required level is obtained. Amplified to and applied to the channel unit 20. The FM broadcast signal of the 1 GHz band transmitted from the antenna 10 and the converter 15 is tuned to a channel selected by the user in the tuner 20a of the channel unit 20, and the broadcast signal tuned by the tuner 20a is a channel. The broadcast signal converted from analog to digital by the A / D converter 20b of the unit 20 and digitally converted by the A / D converter 20b is demodulated by the Link IC 20c of the channel unit 20. The channel is decoded and applied to the demultiplexer 30. The digital broadcast signal selected and demodulated by the channel unit 20 depacketizes a desired packet table among PID (Packet ID) information of the digital satellite broadcast signal in the demultiplexer 30, and the euro profile. In this case, the descrambler 40 is applied to the descrambler 40 under the control of the controller 80 so as to descramble the scrambled broadcast signal. The scrambled broadcast signal applied from the demultiplexer 30 to the descrambler 40 is descrambled and applied to the demultiplexer 30 again. All of the depacketized broadcast signals from the demultiplexer 30 are decompressed by the MPEG A / V decoder 50. In the digital broadcast signals, the video signals are sent to the NTSC encoder 60, and the audio signals are audio D / A. The converter 70 is separated and sent out. The video signal transmitted from the MPEG A / V decoder 50 to the NTSC encoder 60 is processed into a video signal suitable for output and output to the TV monitor, and the audio signal is output from the audio D / A converter 70. The audio signal is processed to be output to the speaker. In addition, the comparator 95 reads the user preference channel stored in the preference channel memory unit 85 at power-on so as to be automatically switched to the preference channel input by the user at the same time, and the controller 80 It compares whether the previously selected channel to be sent is matched and applies it to the controller 80 again. The controller 80 maintains the channel if it matches, and if not, the controller 80 controls the tuner 20a to change the user preference channel.

A process of inputting a user's preferred channel is described below with reference to FIG. 3.

3 is an exemplary view showing an OSD initial screen for inputting a favorite channel.

Referring to FIG. 3, when the user selects the preferred channel input mode using the remote controller 90, the controller 80 drives the OSD 75 to display the OSD screen as shown in the example of FIG. 3. Output to the monitor. If the user's favorite channel is 13, the user inputs 13 using the remote controller 90, and if the general preferred channels except for the most preferred channel are 11, 03, 41, and 34, respectively, the remote controller 90 Enter 11, 03, 41, 34 above. In this case, only one favorite channel may be input, but a plurality of general preferred channels may be input. The user preference channel data input as described above is applied to and stored in the preference channel memory unit 85. When the user preference channel is stored in the preference channel memory unit 85 as described above, when the user turns on the power to watch satellite broadcasting, the comparator 95 compares the stored preference channel with the previous selection channel. If any of the channels match, the channel is kept as it is. If there is no matching channel, 13 is applied to the controller 80, which is the most preferred channel stored in the preferred channel memory unit 85. The controller 80 changes the channel by controlling the tuner 20a to fit the transmitted channel.

Through all the above processes, the preferred channel switching device of the satellite broadcasting receiver is implemented as the present invention intends.

As can be seen from the above description, the present invention provides one channel and a preference for the channel preferred by the user in order of preference so that the selected channel can be switched to the channel that the user prefers when the power of the satellite broadcasting receiver is turned on. Presents a satellite broadcast receiver that inputs and stores a plurality of channels through an OSD screen, and automatically switches to a preferred channel by comparing the selected channel with the inputted and stored preferred channel when pre-viewing at power-on. Whenever watching a broadcast, it is possible to eliminate the inconvenience of having to go through a search process to select a favorite channel.

Claims (2)

In the satellite broadcasting receiver for receiving a broadcast program through satellite broadcasting and displaying it to the user, Key input means for inputting a user's preferred broadcasting channel through satellite broadcasting; OSD means for outputting an OSD screen so that a user can input a favorite broadcasting channel; Preferred channel memory means for storing a preferred broadcast channel of the user inputted from the key input means and the OSD means; Comparison means for comparing whether a preferred broadcast channel stored in the preferred channel memory means with a previously selected broadcast channel at power-on matches and applies it to the control means; A satellite comprising control means for controlling the OSD means and the preferred channel memory means when a user inputs a preferred broadcast channel, and switching the channel to the input preferred broadcast channel if it does not match according to a determination result of the comparison means. Preferred channel switching device for broadcast receivers. The apparatus of claim 1, wherein the preferred channel memory means separately inputs one favorite broadcast channel most preferred by a user and a plurality of favorite broadcast channels generally preferred.