JPS62130081A - Television receiver - Google Patents

Abstract

PURPOSE:To prevent a picture in image receiving from being damaged by an unnecessary display picture by providing a master controller, a touch switch controller or the like and changing over various display picture information according to an using mode thereof. CONSTITUTION:According to a command input from a keyboard 8, the master controller 5 controls a TV tuner controller 1, an AM.FM tuner controller 6, a CRT controller 2 and the touch switch controller 7 through a communication bus 4. From the keyboard 8, the change over of an AM.FM.TV band, the command and the display of the scale of volume, the display of a TV image receiving channel or the like are controlled. The controller 7 detects the position of a touching finger end, a raising command or a lowering command of a received channel is outputted to the controller 1 through the controller 5, and it is changed over to a desired channel. Then, the various display picture information is programmed so as to be changed over according to the using mode thereof, thereby, the picture in image receiving can be prevented from being damaged by the unnecessary display picture.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an image display of a television receiver using, for example, a touch switch as a channel selection means.

[Technical background of the invention and its problems] Television receivers are provided with display devices that display, for example, the number of the channel currently being received and the volume level. It has also been proposed to provide a touch switch function and use this touch switch to switch the image reception channel.

In such a television receiver, by superimposing an image for channel switching on the image of the receiving channel, the position of the touch switch becomes clear and it is possible to provide a receiver that can reliably switch channels. .

Fig. 5 shows an example of the display of such a television receiver, and the display D shows the channel number N being received, the volume display ■, or the touch switch for changing channels. Displays C, etc. are superimposed on the image being received all at once.

In such a television receiver, various display images are superimposed on the display D at the same time, so that many parts of the image receiving screen are hidden by the display images, especially in small television receivers. This has the disadvantage that the image receiving screen becomes more difficult to see.

[Purpose of the invention]

The purpose of this invention is to eliminate the above-mentioned drawbacks, and by providing a function to switch various types of display image information according to the usage mode, it is possible to avoid damaging the screen during image reception. The aim is to provide a television receiver with a

[Invention (already required)]

In order to achieve the above object, the present invention provides a first
The second screen shows the displayed image and other information such as volume.
The feature is that the display images are switched and displayed according to the respective modes, and the screen occupancy rate of the display images is not increased more than necessary.

[Embodiments of the invention]

This invention will be explained below based on FIGS. 1 to 4.

That is, FIG. 1 shows the basic configuration, in which a received signal from a television tuner controller 1 is sent to a display controller 2, where it is provided as an image output to a display 3. Reproduce the received signal as an image.

The television tuner controller 1 and the display controller 2 are connected to a mask controller 5 via a communication bus 4 to control them, and the mask controller 5 is further connected to the communication bus 4.
An AM-FM tuner controller 6 and a touch switch controller 7 are connected to each other via the AM-FM tuner controller 6 and are configured to control them. An external keyboard 8 is connected to the mask controller 5.
The strobe signal and return signal are directly input to and output from the mask controller 5.

The touch switch controller 7 has a light emitting element 0 and a light receiving element R arranged on the front surface of the display 3.
is connected, a key strobe signal is input from the controller 7 to the light emitting element O, and a return signal is input from the light receiving element R to the controller 7.

A more specific configuration of the controller 7, light emitting element 0, and light receiving element R portion is shown in FIG.

That is, four infrared light emitting elements 01 to 04 are provided on the upper side and right side of the display 3, and these are each connected to a time division decoder 71. Furthermore, four light receiving elements R and -R are arranged on the lower side and left side of the display 3 so as to correspond to the above-mentioned light emitting elements 01 to 04, respectively, and these are connected to a multiplexer 72. .

Here, a synchronizing signal is supplied from the sub-controller 73 to the decoder 71, and the light emitting elements 0° to 04 are sequentially turned on in a time-division manner. Further, the multiplexer 72 is supplied with a same gate signal from the sub-controller 72, and the light emitting elements 0. Light receiving element R3 synchronizes with the dynamic lighting of ~04
- Each output of R4 is picked up in a time-division manner. This picked up light receiving element output passes through an amplifier 74 and is processed within the sub-controller 73. The decoder 71, multiplexer 72, sub-controller 73, and amplifier 74 constitute the touch switch controller 7 shown in FIG.

In the above configuration, when a command is input from the keyboard 8 connected to the mask controller 5, the mask controller 5 communicates with the television tuner controller 1 and the AM-FM tuner controller 6 via the communication node 4.
, display controller 2, and touch switch controller 7.

For example, when a command is given from the keyboard 8 to activate the ΔM-FM tuner or the television tuner, a command signal is applied from the mask controller 5 to the AM-FM tuner controller 6 or the television tuner controller 1 via the communication bus 4, Either is made operational.

For example, when a command signal is applied 730 to the television tuner controller 1, the output of the television tuner goes to the display controller 2, and the image output demodulated by the display controller 2 goes to the display 3.
The image is played back.

At this time, when a volume up or volume down command is input from the keyboard 8, a volume display command is applied to the display controller 2, the volume is superimposed as an image on the display 3, and the superimposition is performed according to the volume increase or decrease. Changes the display of the amount of volume being imposed. This volume amount will not be displayed unless another command signal is input.
The mask controller 5 instructs the display L to disappear several seconds after setting the volume.

If a channel display command is inputted from the keyboard 8 as necessary, the currently received channel image is processed by the Cheetara display controller 2 and the channel number is superimposed on the display 3.

As described above, the keyboard 8 controls the AM-FM or television hand switching, the command and display of the volume, the display of the television reception channel, and the like.

On the other hand, the touch switch controller 7 has the configuration shown in FIG. 2, and detects by optical detection where the fingertip is located on the touch switch display 2 superimposed on the display 3. This detection result is input to the mask controller 5 via the communication bus 4, and upon receiving it, the mask controller 5 issues a command to raise or lower the reception channel to the television tuner controller 1, and switches to a desired channel.

FIG. 3 is a flowchart showing a program for the display modes of the volume display and the touch switch display superimposed on the display 3.

That is, it is first determined whether or not there is a key input to command a change in the volume amount, and if there is input at this point, only the volume is displayed on the display. In addition, if there is no key manual power to command the volume change, it is determined whether the touch switch display is being displayed or not, and if it is, the touch key manual power, that is, the touch switch controller 7 decodes the desired value. Switch to channel. Furthermore, if the touch switch display is not displayed, it is determined whether there is a request for the Tasochi Sui/Nochi display, and if there is a request, the touch switch display and volume display are superimposed on the display. .

Figure 4 shows an example of a superimposed display when there is a key input to command a volume change. In this case, only the volume display V is displayed on the display D, and the touch switch No display is made, so there is no problem that the image being received is largely hidden by the touch switch display.

〔Effect of the invention〕

As described above, the present invention provides a television receiver that is programmed to switch various types of display image information according to its usage mode, so that unnecessary display images do not damage the receiving screen. be able to.

[Brief explanation of drawings]

Fig. 1 is a block diagram of A. Durham showing an embodiment of the present invention, Fig. 2 is a block diagram showing an example of a channel selection operation mechanism, and Fig. 3 is a display displayed on a display. FIG. 4 is a front view showing an example of a display mode according to the present invention, and FIG. 5 is a front view showing an example of a conventional display mode. ■...Television tuner controller, 2...
Display controller, 3...display, 4
...Communication lotus, 5...Mask controller, 6...
・AM-FM tuner controller, 7... touch switch controller, 8... external keyboard, 0.
... Light emitting element, R... Light receiving element. Patent applicant: Pioneer Corporation Figure 1

Claims (1)

[Scope of Claims] A tuner unit that receives a television signal, a display that displays the video signal obtained by the tuner unit as an image, and a touch switch function provided on the front of the display, A first image used for touch input using a switch function and a second image showing other information such as volume can be displayed superimposed on the video signal image obtained by the tuner section. In this case, the first image used for the touch input and the second image showing other information such as volume are at least the first and second images on the video signal image obtained by the tuner section. The mode that is superimposed on the
A television receiver characterized in that a mode is selected in which only the second image is displayed superimposed on the video signal image obtained by the tuner section.