JPH0474075A - Display method for selection input of television receiver - Google Patents

Abstract

PURPOSE:To mate a signal type or a signal source clear by devising the method such that a display character at selection of a channel is selected and designated from characters stored in advance in a read only memory of a control section at preset of a channel number of a received television broadcast. CONSTITUTION:A signal of a designated channel from a television broadcast signal inputted to an antenna input terminal 12 is selected by a tuner section 13 and a demodulated video signal is inputted to an input changeover section 14 together with the video signal inputted to external input terminals 10-11 and one of inputs designated by a control section 15 is selected. On the other hand, a display signal for a character or a symbol displayed on a screen is generated based on a data outputted from the control section 15 and synthesized with the signal selected by the changeover section 14 and the result is displayed on a cathode ray tube 20. The control section 15 set in the preset mode by the key entry of a key entry section 16 gives a data of a reception position number stored already in a nonvolatile memory 15b and a reception channel number corresponding to the above reception position number to a display control section 17, which generates and outputs a display signal to display both the numbers on the screen of the above cathode ray tube 20.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for displaying a received channel of a television receiver or a selected external input.

[Conventional technology]

Set the channel number of the broadcast signal to be received corresponding to the reception position number of the TV receiver, and by operating the key of the same reception position number, the broadcast signal of the channel number corresponding to the same reception position number is received, and the same reception position Either the number or the same channel number would be displayed on the display screen.

Also, when selecting an input signal from an external input terminal, the signal from the specified input terminal is selected and the symbol for the input terminal is displayed on the screen.

[Problem to be solved by the invention]

If the carrier wave of an empty TV channel is modulated with the reproduced video signal or TV video signal output from a VTR, etc., and mixed with the received broadcast signal and supplied to the antenna terminal of the TV receiver, it is difficult to receive the broadcast signal of the empty channel. for,
The number of the same air channel is displayed even though the signal is received via a VTR etc.

While receiving an empty channel via a VTR, etc., even if you check the broadcast channel of the received program by applying for a quiz show, etc., the number of the empty channel will only be displayed. , it was inconvenient that teletext signals could not be received using broadcast signals via VTRs or the like.

[Means for solving the problem] When a TV receiver presets the channel number of the TV broadcast to be received for the reception position number of the receiver, the characters displayed when the same channel is selected are stored in the read-only memory of the control unit. It is possible to select and specify characters from pre-stored characters.

Also, when selecting a signal from an external input terminal, select from the characters or symbols representing the signal source device stored in the read-only memory in advance in correspondence with the same input selection key in preset mode, and control the same character or symbol. By storing the information in a non-volatile memory within the unit, when the key is operated, the input signal corresponding to the key is selected and the stored characters or symbols are displayed on the screen.

[Effect]

The tuner unit I3 converts the signal of the channel specified by the control unit 15 from the television broadcast signal input to the antenna input terminal I2.
, output the demodulated video signal, and connect it to external input terminal 1.
Together with the video signals inputted to 0 to 1, they are input to the input switching section I4, and one of the inputs specified by the control section I5 is selected.

On the other hand, a display signal of characters or symbols to be displayed on the screen is generated based on the data output from the control section 15, and the signal is combined with the signal selected by the input switching section I4 and supplied to the cathode ray tube 20 via the video signal section, It is displayed on the screen of the cathode ray tube 20.

The channel number of the television broadcast to be received is preset to the reception position number of the television receiver corresponding to the channel selection key position of the key input section I6 for specifying the channel to be selected by the tuner section 13.

The control unit I5, set to the preset mode by key operation of the key input unit I6, displays the data of the reception position number and the reception channel number corresponding to the reception position number stored in the nonvolatile memory 15a in the control unit 15. Control unit 17
and generates and outputs a display signal for displaying both numbers on the screen of the cathode ray tube 20.

FIG. 2 shows a display example of the reception position number and reception channel number in the preset mode. In the figure, the letter "P" represents the preset mode, and the negative digit or two-finger number represents the reception position number of the channel selection key.

The receiving position number and the number following the symbol "°-" represent the channel number of the received signal corresponding to the receiving position number, and the underline of the receiving channel number is a cursor indicating the number to be displayed when selecting a channel in normal mode. be.

In the preset mode with the display shown in FIG. 2, the reception position number is changed using the channel selection key of the key input section 16, and the received signal corresponding to the reception position number is changed using the channel key of the key input section 6. Specify the channel number.

As the display of the receiving position number and the receiving channel number is changed, a tuning signal 15c of the same receiving channel number is output to the tuner section 13, and the data stored in the nonvolatile memory 15b in the control section 15 is also updated.

Furthermore, by operating the display switching key of the key input unit 16, the number to be displayed on the screen when operating the channel selection key in the normal mode is specified, and the non-volatile memory 15 in the control unit I5 is designated.
Store in b.

FIG. 3 shows a flowchart of the control operation by operating the display switching key.

By operating the display switching key, the cursor is displayed on either the receiving position number or the receiving channel number, and by subsequently operating the same key, the same number is stored in the read-only memory 15α in the control unit 15 in advance at the display position. The type name of a certain input signal, for example, character data of "RF-Video" is read out and displayed.

Displaying the cursor on any one of the reception position number, reception channel number, and number of channels, and displaying the type name of the input signal are sequentially repeated to select one of them, which corresponds to the channel selection key of the key input section 16. The data displayed together with the reception channel number is stored in the non-volatile memory 15 in the control section 15.
Store in b.

In the normal mode, by operating the channel selection key in the key input section, the number of the receiving channel corresponding to the key is input to the control section I5.
The channel selection signal 15c corresponding to the same number is output to receive the broadcast signal of the channel having the same number.

Along with the reception channel number corresponding to the channel selection key,
The display data stored in the nonvolatile memory 15b is read out and supplied to the display control section 17, where it is converted into a display signal of a corresponding character or symbol, output, and displayed.

Similarly, when the input switching section 14 selects the output of the tuner section 13 or the input of the external input terminals 10 to 11, registered characters or symbols are displayed according to the flowchart of FIG.

That is, the control unit I5 is put into a preset mode by key operation of the key input unit 16, and the input corresponding to the input selection key input is selected by the input switching unit 14, and the symbol of the doujinshi terminal is displayed.

Then, by the input display switching key, the control section 15
The type name of the input device stored in advance in the read-only memory 15a is read out, and the same type name is displayed after the symbol of the input terminal on the screen display, and the same type name is displayed in the control unit 15 corresponding to the input selection key. non-volatile memory 1
5b is stored in the display data area.

When the input of the display switching key continues, the type names stored in the read-only memory 15a are sequentially read out and displayed, and the display data in the non-volatile memory 15b corresponding to the input selection key is updated. .

In the normal mode state, by operating the channel selection key or input selection key of the key input section 160, the channel selection signal 15c or selection signal 15d corresponding to the key is output to select the signal or input of the corresponding channel, and the non-volatile Read out the display data corresponding to the same key stored in the gender memory 15b,
Convert and output to display signal and display.

〔Example〕

The television broadcast signal input to the antenna input terminal 12 is supplied to the tuner section 13 together with the channel selection signal 15c output from the control section 15, and the signal of the channel specified by the channel selection signal 15c is selected and demodulated to produce a video signal and Output audio signal.

The video signal and audio signal input to the external input terminals 1O-II are input to the input switching unit 14 together with the video signal and audio signal output from the tuner unit 13, and the selection signal 15d output from the control unit 15 specifies the video signal and audio signal. Select input signal.

The signal selected by the input switching section 14 is supplied to a video signal section and an audio signal section via a signal synthesis section I8, and drives a cathode ray tube or a speaker.

Based on the output data of the control section 5, a character or symbol display signal corresponding to the data is generated and output, and is supplied to the signal synthesis section 18 together with the signal output from the input switching section 14.

In the preset mode of the control section I5, the channel number of the television broadcast to be received is preset for the reception position number of the television receiver corresponding to the channel selection key of the key input section 16.

The second example of the display on the cathode ray tube in the preset mode is shown below.
As shown in the figure.

In the figure, the letter "P" indicates the preset mode, the number that follows indicates the reception position number of the channel selection key, and the number that follows the symbol "-" indicates the reception channel number of the TV broadcast signal corresponding to the reception position number. It is something.

By operating the channel selection key on the key input unit 16, the reception position number corresponding to the same key is displayed, and by operating the channel key on the key input unit 16, the reception channel number being displayed is updated, and the broadcast corresponding to the same channel number is displayed. Receive and display signals.

At the same time, the reception channel number corresponding to the reception position number stored in the non-volatile memo +J15b in the control section 15 is updated to the channel number currently being displayed.

In the preset mode, the underline of the reception position number or reception channel number, that is, the cursor, is moved by operating the display switching key of the key input unit 16, and the number to be displayed when selecting a channel in the normal mode is selected.

The control procedure of the control section J5 when the display switching key is operated is shown in the flowchart of FIG.

That is, by operating the display switching key, the cursor of the receiving position number or receiving channel number being displayed is moved, and the receiving channel number currently being displayed is moved in the display data area corresponding to the receiving position number in the nonvolatile memory 15b. Remember.

The reception channel number specified corresponding to the reception position number is "1" or "2", and the nonvolatile memory 1
If the display data corresponding to the same receiving position number in 5b is character data, the same receiving position number is set as new display data, and if it is not character data, the read-only memory 15a in the control unit 15 is used.
reads the data of the signal type name stored in advance in the nonvolatile memory 15b, displays the characters of the same type name, for example, "RF-Video" at the display position of the same number, and
The display data corresponding to the same reception position number in the same type name data is updated to the same type name data.

By operating the display switching key, in the normal mode, the television broadcast signal of the channel specified by the channel selection key of the key input section is received, and the non-volatile memory is received. s
The characters of the display data corresponding to the same reception position number of the same channel selection key in b are displayed on the screen.

Similarly, when the input switching unit 14 selects an input signal from the external input terminals 10 to 11, in addition to displaying the symbol of the external input terminal, the name or abbreviation of the signal source device connected to the terminal may be displayed. can.

That is, according to the flowchart of FIG. 4, with the control section I5 in the preset mode, an input corresponding to the same key is selected by operating the selection key of the external input, and a symbol of the external input terminal, for example, "v1" is displayed.

By the subsequent operation of the display switching key of the key input unit 1θ, the name or abbreviation of the signal source device stored in advance in the read-only memory 15a in the control unit 15, such as “VTR”
Sequentially reads data such as "VD", displays the characters or symbols of the same data on the screen, and also displays the same data on the same control key section I.
5 is stored in the display data area corresponding to the selection key of the nonvolatile memory 15b.

〔Effect of the invention〕

With the above display method, the signal or signal source of the selected channel is not just a number or symbol, but the specific signal type or signal source, and the broadcast signal and VTR
There is no need to worry about confusing the reproduced signals or checking the signal source.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a television receiver implementing the present invention;
Figure 2 is a front view showing an example of the display when setting the reception channel;
FIG. 3 is a flowchart of display selection when setting a receiving channel, and FIG. 4 is a flowchart of display selection when external input is selected. In the figure, IO to 11 are external input terminals, 12 is an antenna input terminal, 13 is a tuner section, 14 is an input switching section, 5 is a control section, 15a is a read-only memory, 15b is a non-volatile memory, and 15c is a channel selection 15d is a selection signal, 16 is a key input section, 17 is a display control section, 18 is a signal synthesis section, and 20 is a cathode ray tube. Patent applicant: Fujitsu General Ltd.

Claims (2)

[Claims] (1) Select the broadcast signal of the specified channel or the input signal of the external input terminal by operating the channel selection key or input selection key of the key input section, and also select the same signal specified by the display switching key of the key input section in preset mode. In a television receiver that displays on the screen either the position number of the channel selection key or the receiving channel number specified and stored in correspondence with the same position number, or the external input terminal symbol corresponding to the same input selection key, in the preset mode, the Use the display switching key to select either the reception position number, reception channel number, or input signal type name prestored in the read-only memory in the control unit, which is specified in association with the same station selection key. A selection input for a television receiver characterized in that, by storing the stored number or type name in the non-volatile memory in the control unit, when the same channel selection key is operated, the stored number or type name is displayed in the non-volatile memory corresponding to the same key. method of presentation. (2) Select the specified input signal by operating the external input selection key of the key input section, and specify the terminal symbol or read-only terminal symbol of the external input corresponding to the selection key using the display switching key in the preset mode. By selecting one of the type names of input devices stored in advance in the memory and storing it in the non-volatile memory, when the same selection key is operated, the symbol or type name stored in the same non-volatile memory corresponding to the same key is displayed. A claim characterized in that it displays (
1) Display method of selection input of the television receiver described above.