JPH0937174A - Television receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide optimum picture quality and sound volume for each broadcasting station or video input at the time of switching the broadcasting station or the video input. SOLUTION: When the changeover of the broadcasting station or the video input is requested by a key operation, the adjustment circuit of the picture quality or the sound volume is controlled by data for which a setting value stored in a common data memory 5 not depending on input signals and a correction value stored in a memory 7 for data correction different for each broadcasting station or each input are added. Thus, the optimum picture quality and sound volume are set for each broadcasting station or input.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television receiver.

[0002]

2. Description of the Related Art In recent years, in a television receiver, for example, a sound volume is adjusted by converting a numerical data recorded in a storage device into a voltage using a control device having a microcomputer. . In the conventional configuration, a storage device that stores data such as frequency for each broadcast station and a storage device that stores data that does not depend on the broadcast station, such as volume, are provided, thus saving the amount of storage device.

FIG. 2 shows a conventional structure. When a channel is selected, the control device 4 controls the data memory 6 that stores data such as the frequency of the channel for each station.
And controls the tuning circuit 9 and the like. The volume adjustment is performed by controlling the audio amplification circuit 15 according to the value read from the common data memory 5 regardless of the channel.

[0004]

However, in the conventional configuration, the volume and the color adjustment value are stored as common data when the broadcasting station is switched or the external input such as video is switched. When the input level of the signal changed, it was necessary to readjust each time according to the input.

In order to solve the above problems, the present invention provides
The purpose is to store the correction value of the common data for each broadcasting station and external input, and to add the correction value to the common data to adjust the input data when switching the input so that the optimum image quality and volume are always maintained.

[0006]

In order to achieve the above object, a television receiver of the present invention comprises a device for storing a correction value for common data for each broadcasting station or each external input,
This correction value is added to the common data to perform control.

[0007]

According to the present invention, when the viewer switches between the broadcasting station and the external input, the present invention adjusts the common data, which is commonly set, by adding the correction value for the broadcasting station or the external input to adjust the optimum data. Get image quality and volume.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A television receiver according to an embodiment of the present invention will be described below with reference to FIG. FIG. 1 shows a block diagram of a television receiver according to an embodiment of the present invention. In FIG. 1, a switching circuit 11 selects a signal obtained through a tuning circuit 9 for selecting a specific broadcasting station from a radio wave obtained from an antenna 8 or a signal input from an external input terminal 10 by a switching circuit 11, Through 12 C
An image is displayed on the RT 13, and an audio signal obtained through the audio demodulation circuit 14 is amplified by the audio amplification circuit 15 and output from the speaker 16.

In response to the image receiving device, the wireless remote control device 1 having an operating element such as a push button transmits a remote control signal including, for example, infrared rays to the receiving element 2 in accordance with the depressed operating element. , Is converted into digital code data in the signal detection circuit 3 and input to the control device 4 having a microcomputer configuration. The control device 4 applies a control signal for the input data to the receiving unit 17 to switch the receiving channel, switch to the external input, and adjust the volume of the audio signal output to the speaker 16.

Here, when a request for tuning is applied to the control device 4 from the remote control signal detection circuit 3, the control device 4
Reads out station-specific data such as a frequency required for channel selection from the station-specific storage data memory 6 and transmits it to the channel selection circuit 9 as channel selection data. At this time, the volume is controlled by controlling the audio amplification circuit 15 according to a value obtained by adding the value read from the data memory 7 stored for each station or each input to the value read from the common data memory 5 irrespective of the station. Set the volume for each station or input.

With the above configuration, normal volume adjustment can be performed by changing the value of the common memory data memory 5, and if the volume of the input is different for each broadcasting station or external input, It can be corrected by changing the value of the data memory 7 for storage for each input.

[0012]

As described above, according to the present invention, for example, when a viewer feels that the image quality and volume of a broadcasting station are different from those of other broadcasting stations, only the correction value for the broadcasting station is changed. Therefore, without changing the image quality or volume of other broadcasting stations,
You can get the best image quality and volume.

[Brief description of drawings]

FIG. 1 is a block diagram of a television receiver according to an embodiment of the present invention.

FIG. 2 is a block configuration diagram of a conventional television receiver.

[Explanation of symbols]

 1 remote control device 2 remote control signal receiving element 3 remote control signal detection circuit 4 control device 5 common data storage memory 6 broadcast station data storage memory 7 broadcast station, external input correction data storage memory 8 antenna 9 channel selection Circuit 10 External input terminal 11 Input signal switching circuit 12 Video demodulation circuit 13 CRT 14 Audio demodulation circuit 15 Audio amplification circuit 16 Speaker

Claims (1)

[Claims] 1. A device for storing tuning data for each broadcasting station, a device for storing data of volume and color adjustment values common to all broadcasting stations, and correction of common data for each broadcasting station and external input. Equipped with a device for storing data for adding,
A television receiver characterized in that correction is made by adding correction data for each input to volume and color adjustment values when tuning or switching external inputs.