JPH0629283U - Television receiver - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a TV receiver capable of informing a viewer that a program of a standard broadcasting system is being broadcast at a broadcasting station of a special broadcasting system. [Configuration] When the input switching control unit 11 selects a mode other than satellite broadcast input, the satellite broadcast channel selection unit 4 determines that the MUSE broadcast /
The channel set by the scramble broadcast channel setting unit 3 (channel of a special broadcast station) is automatically and always selected, and the satellite broadcast receiving unit 5 receives the channel. The broadcast detection unit 6 detects the broadcast system from the received signal,
In the case of the system (standard broadcasting system), turn on the LED,
Inform the viewer that the broadcast is in NTSC format.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a television (TV) receiver, and in particular, a program of a standard broadcasting system is being broadcast at a broadcasting station of a special broadcasting system (that is, it can be received by a TV receiver without a decoder). The objective is to provide a TV receiver that can inform the viewer that the program is being broadcast).

[0002]

[Prior art]

 Currently, terrestrial broadcasting is broadcast by the NTSC broadcasting system which is a standard broadcasting system. Satellite broadcasting is provided in three formats: NTSC broadcasting, scramble broadcasting, and MUSE broadcasting. Of these, the scramble broadcast system and the MUSE broadcast system are special broadcast systems, and the two broadcasts cannot be viewed without a dedicated decoder. Therefore, in a TV receiver (hereinafter referred to as a general TV receiver) equipped with a receiving circuit capable of receiving the terrestrial broadcasting and the satellite broadcasting of the NTSC broadcasting system (standard broadcasting system), the program of the scramble broadcasting system and the MUSE broadcasting system is used. Can't see.

However, some broadcasting stations that perform scrambled broadcasting or MUSE broadcasting may partially perform standard NTSC broadcasting within the broadcasting time zone of one day. This NTSC broadcast often happens suddenly outside of the time zones described in the program guides of newspapers. (There are many programs that are not broadcast in other stations on this broadcast, and many of them are hard to see once you miss them.)

In order to watch the above-mentioned sudden NTSC broadcast on a general TV receiver, the viewer himself / herself always pays attention to the channels of the special broadcasting station and selects the NTSC broadcast. Had to make sure that was done. As described above, in the conventional general TV receiver, it is troublesome and difficult to know when the broadcasting station performing the special broadcasting switches to the NTSC broadcasting.

[0005]

[Problems to be solved by the device]

 The problem to be solved by this invention is to find a TV receiver capable of automatically detecting that a satellite broadcasting station performing special broadcasting is performing standard NTSC broadcasting and notifying the viewer. The point is whether such measures should be taken.

[0006]

[Means for Solving the Problems]

 Therefore, in order to solve the above problems, the present invention is directed to a receiving circuit for receiving satellite broadcasting and terrestrial broadcasting of standard broadcasting system, and a channel setting circuit for setting broadcasting channels of special broadcasting system other than standard broadcasting system in satellite broadcasting. When the image other than the satellite broadcast is being reproduced on the image display unit, the receiver circuit receives the set broadcast channel, and from the received signal, the broadcast of the set broadcast channel is the standard broadcast system. Whether the broadcast of the set broadcast channel is the standard broadcast system or the special broadcast system, depending on the detection circuit that detects whether the broadcast is the special broadcast system or the detection result of the detection circuit. The present invention provides a television receiver characterized in that it is provided with a transmission circuit for transmitting the signal to the outside.

[0007]

【Example】

 FIG. 1 shows a block diagram of an embodiment, and FIG. 2 shows a flow chart for explaining the operation thereof. The embodiment shown here is an example of a TV receiver which does not have a dedicated decoder for a special broadcasting system.

In FIG. 1, reference numeral 1 denotes a key input unit including a channel setting key and a channel key, and the key input control unit 2 determines that the key has been pressed. The MUSE broadcast / scramble broadcast channel setting unit 3 is controlled by the key input control unit 2 to set the MUSE broadcast channel or the scramble broadcast channel to the number of the channel key pressed by the key input unit 1. Reference numeral 4 is a satellite broadcasting channel selection section, and 5 is a satellite broadcasting reception section for receiving satellite broadcasting.

The broadcast detection unit 6 detects whether the signal received by the satellite broadcast reception unit 5 is a standard broadcast system or a special broadcast system (MUSE broadcast / scramble broadcast). The broadcast detecting unit 6 may be the same as the broadcast detecting unit used in the conventional TV receiver with a built-in decoder. When the standard broadcasting system is detected, the LED is turned on by the LED display control unit 7 and the LED display unit 8. When the broadcast detection unit 6 detects a special broadcast system, the LED display control unit 7 and the LED display unit 8 turn off the LED.

Reference numeral 9 is a terrestrial broadcasting channel selection section, and 10 is a terrestrial broadcasting reception section for receiving terrestrial broadcasting of NTSC broadcasting. The input switching control unit 11 selects one of three inputs such as a satellite broadcast input, a terrestrial broadcast input, and a VTR input, and supplies the selected signal to the video signal processing unit 12. The CRT 13 is an image display unit that reproduces the signal from the video signal processing unit 12.

When an image other than the satellite broadcast is reproduced on the CRT 13 (that is, when the input switching control unit 11 selects the input other than the satellite broadcast input), the satellite broadcast channel selection unit 4 causes the MUSE transmission / scramble to be performed. The channel set by the broadcast channel setting unit 3 is always automatically selected, and the broadcast detection unit 6 always detects the broadcast system.

Next, the operation of this embodiment will be described with reference to FIG. First, the initial setting of the MUSE broadcasting / scramble broadcasting channel will be described. When the viewer presses the channel setting key (key for setting the MUSE broadcast and scramble broadcast channel), the key input control unit 2 enters the setting mode, and the channel key (the key for specifying the number of the setting channel). ) Is pressed (steps 101 and 102 in FIG. 2). When the channel key is pressed, the channel is set to the MUSE broadcast channel or the scramble broadcast channel (step 103). This completes the initial setting of the channel (or the setting when the channel that has been set once is changed), and the routine proceeds to step 104. When the channel setting key is not pressed (that is, after setting the channel once), the process proceeds from step 101 directly to step 104.

In step 104, it is judged whether or not the viewer is watching the satellite broadcasting channel, and if it is judged that the viewer is not watching the broadcasting channel (that is, when the input switching control unit 11 selects other than the satellite broadcasting input). ), The set channel is automatically selected by the satellite broadcasting channel selection section (steps 104 → 105). When it is determined that the viewer is watching the satellite broadcasting channel (that is, when the input switching control unit 11 selects the satellite broadcasting input), the other channel is automatically selected for viewing. However, it will return to step 101.

When proceeding to step 105, in the next step, the channel selected in step 105 is received by the satellite broadcast receiving section 5, and the broadcast system is detected by the broadcast detecting section 6 from the received signal (step). 106). If the standard broadcasting system is detected, the LED display control unit 7 and the LED display unit 8 turn on the LEDs (steps 107 and 108). When the broadcast detection unit 6 detects the special broadcast system, the LED display control unit 7 and the LED display unit 8 turn off the LEDs (steps 107 and 109). Then, the process returns to step 101.

In this way, the present embodiment always detects and informs the viewer whether or not the special broadcasting station is performing the standard broadcasting except when the viewer is watching the satellite broadcasting channel. You can Therefore, it is very easy to use.

In the present embodiment, the LED is used as the transmission means, but a means for performing an on-screen display on the CRT 13 or a means for notifying by synthetic voice may be used.

[0017]

[Effect of device]

 As described above, the TV receiver according to the present invention can automatically detect that the satellite broadcasting station that broadcasts the special broadcasting system is performing the NTSC broadcasting of the standard broadcasting system and notify the viewer. , Easy to use.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a flow chart for explaining the operation of the embodiment.

[Explanation of symbols]

 1 key input unit 2 key input control unit 3 MUSE broadcasting / scramble broadcasting channel setting unit 4 satellite broadcasting channel selection unit 5 satellite broadcasting reception unit 6 broadcasting detection unit 7 LED display control unit 8 LED display unit 9 terrestrial broadcasting channel selection unit 10 terrestrial broadcasting reception Part 11 Input switching control part 12 Video signal processing part 13 CRT

Claims (1)

[Scope of utility model registration request] 1. A receiving circuit for receiving satellite broadcasting and terrestrial broadcasting of a standard broadcasting system, a channel setting circuit for setting a broadcasting channel of a special broadcasting system other than the standard broadcasting system in the satellite broadcasting, and an image other than the satellite broadcasting. When the set broadcast channel is received by the receiving circuit during reproduction on the image display unit, whether the broadcast of the set broadcast channel is the standard broadcast system or the special broadcast system is received from the received signal. A detection circuit for detecting, and a transmission circuit for transmitting to the outside whether the broadcast of the set broadcast channel is the standard broadcast system or the special broadcast system according to the detection result of the detection circuit are provided. Characteristic television receiver.