JPH0619258Y2 - Television receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a television receiver provided with a memory for storing video and audio states.

(B) Conventional technology Conventionally, in a television receiver, image characteristics (color intensity, hue, contrast, brightness, etc.) are controlled by an image control signal, and the control state is stored in a memory. , The image quality desired by the user can be easily reproduced, and the same can be done for voice.

In addition, the above-mentioned technology is "TV technology '87 / January issue" p51
~ P62.

However, since the data is stored in the RAM in the conventional method, the data disappears when the AC power is turned off.

In addition, the RAM area is limited, and each of video and audio,
It was difficult to memorize multiple states.

(C) Problems to be Solved by the Invention The present invention has been made in view of the above-mentioned points, and it is possible to store a plurality of video and audio states, and at the
Provided is a television receiver capable of retaining memory contents even when the power is turned off.

That is, the present invention provides a television receiver in which data set by a user in a specific mode is stored even when the power is off, and the set data can be read by a read operation in the specific mode after the power is turned on. To do.

(D) Means for Solving the Problems The present invention is a control signal generating means for generating a video control signal for controlling a video signal and an audio control signal for controlling an audio signal, and storing data corresponding to a plurality of video control signals. A nonvolatile memory having a plurality of areas for storing data corresponding to a plurality of audio control signals, a memory writing means for controlling writing of data to the nonvolatile memory, and data from the nonvolatile memory. And a memory reading means for controlling the reading of the CRT and the CRT so as to display the video and audio states on the CRT based on the data corresponding to the video control signal and the audio control signal read from the non-volatile memory. Consisting of display control means,
Write mode setting means for enabling the video memory writing means to write the data in at least one area, and mode for enabling the video memory reading means to read the data from the memory And a read mode setting means for performing the same.

(E) Action The present invention can set the video control signal and the audio control signal by the user's specific key operation, and the data is stored even when the power is turned off.The video control signal is stored unless the specific key operation is performed. Even if the voice control signal is changed and set, the stored data is not changed and remains held.

(F) Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic block diagram of the television receiver in this embodiment.

In the figure, (1) is a tuner that receives a television signal and tunes to a predetermined channel, (2) is a video signal processing circuit that processes the video signal of the tuner output, and (3) is this video signal processing A CRT drive circuit that drives the CRT (5) with an output obtained by superimposing the output of the character generation circuit (4) described later on the output of the circuit (2), and (6) is a voice that processes an audio signal of the tuner (1) output. A signal processing circuit (7) is an amplifier that amplifies the output of the audio signal processing circuit (6) and drives the speaker (8).

(9) is a key operation section having a plurality of operation keys, (10) is a non-volatile memory for storing video control signals and audio control signals, (11) is an operation command from this key operation section (9) In response to this, a microcomputer (microcomputer) for controlling the video signal processing circuit (2), the audio signal processing circuit (6) and the character generation circuit (4), which is a key input from the key operation unit (9). A key input determination unit (110) that determines the type, a key input processing unit (111) that processes a key input according to the output, a video memory writing unit (112) that writes data corresponding to a video control signal in the memory (10), Video memory reading unit for reading the data
(113), data corresponding to the voice control signal is stored in the memory (1
0) corresponding to the audio memory writing unit (114), the audio memory reading unit (115) for reading this data, and the video control signal read from the memory (10) by the video memory reading unit (113). The video signal processing circuit based on data
A video control unit (116) that controls (2), a display control unit (117) that also controls the character generation circuit (4) based on data corresponding to the video control signal, and the audio memory reading unit (115).
The audio control unit (118) for controlling the audio signal processing circuit (6) based on the data corresponding to the audio control signal read from the memory (10).

Next, the operation of the apparatus of this embodiment will be described.

First, the video memory key of the key operation unit (9) is operated. This key input is determined by the key input determination unit (110) and supplied to the key input processing unit (111). The key input processing unit (111) controls the display control unit (117) to cause the character generation circuit (4) to generate a character signal of a predetermined pattern. Then, this character signal is superimposed on the television signal by the CRT drive circuit (3), and the CRT (5)
On the screen, "Eizo Memory-1" is displayed on the screen. The video memory is divided into three areas in the memory (10), and by pressing the video memory key, 1 to 3 can be sequentially selected.

Now, when the video memory 1 is selected, the video memory reading unit (1
6) stored in a predetermined area of the memory (10) via (13) (color intensity, color tone, contrast, brightness,
Data relating to the characteristics of image quality and white tone) is read and the video signal processing circuit (2) is controlled via the video control unit (116).

When changing the contents of the video memory 1, the function selection key is pressed. Then, the characteristics and graphs of 6 items as shown in FIG. 2 are displayed on the CRT (5) on the screen.

Then, when the function selection key is sequentially pressed, each item is selected (the selected item is displayed in a color different from other items), and the video (+) and (-) keys are sequentially adjusted. At this time,
In the graph, when it is (+) from the center mark, it can be increased to 14 on the right side and (-) to the left on the left side.

When each item is adjusted sequentially in the above manner, the respective data are stored in a predetermined area of the memory (10) via the video memory writing unit (112). Then, the display disappears 5 seconds after the key input.

As described above, three kinds of states can be stored in the image, and the state at that time is displayed on the screen.

Further, when the setting is performed without operating the video memory key, the data regarding the currently set video characteristic is read out and the on-screen display is performed. Then, the function selection keys can be sequentially operated to adjust each selected item.

However, since the video memory key is not operated, it is not stored in the three areas for the video memory.

Similarly to the video memory, there are three types of audio memories, 1 to 3, and the audio memory area of the memory (10) is also divided into three.

Then, by operating the voice memory key, one of the voice memories 1 to 3, for example, the voice memory 1 is selected as described above. Then, the memory is read through the voice memory reading unit (115).
Characteristics stored in (10) (total volume, treble and bass volume, front / rear and left / right balance, woofer level, etc.)
Data is read out, and the audio signal processing circuit (6) is controlled via the audio control unit (118).

When changing the contents of the voice memory 1, the keys corresponding to the respective characteristics are operated. At this time, on the CRT (5), as shown in FIG. 3, the current memory contents of each characteristic are displayed on-screen on the entire screen.

Since the memory (10) of this embodiment is a non-volatile memory, it is AC.
Even if the power is turned off, the stored contents will not be lost.

(G) Effect of the Invention According to the present invention as described above, the data can be written in a specific area of the nonvolatile memory only when the memory key is operated, and the data in the specific area can be written unless the read key is operated. The set data is retained unless it is read out and the memory key is operated to write in the same specific area.

Since the data stored in the specific area is retained even when the power is off, the data retained in the specific area can be read by operating the read key after the power is turned on.

Further, the memory is a RAM built in a microcomputer.
Since an external large-capacity memory is used without using, a plurality of types of video and audio states can be stored.

Moreover, since the video and audio states are displayed on-screen on the entire CRT screen, it is very easy to understand.

[Brief description of drawings]

The drawings are all related to one embodiment of the present invention. FIG. 1 is a schematic block diagram of a television receiver in this embodiment, FIG. 2 is a diagram showing an on-screen display of video characteristics, and FIG. It is a figure which shows an on-screen display. (2) ... Video signal processing circuit, (5) ... CRT drive circuit, (6) ...
Voice signal processing circuit, (4) ... Character generation circuit, (9) ... Key operation unit, (11) ... Microcomputer, (110) ... Key input determination unit, (111) ... Key input processing unit, (117) ... Display controller, (1
16) ... video control unit, (118) ... audio control unit, (10) ... memory.

Claims (1)

[Scope of utility model registration request] 1. A control signal generating means for generating a video control signal for controlling a video signal and a voice control signal for controlling a voice signal, an area for storing data corresponding to the plurality of video control signals, and a plurality of voice control signals. A non-volatile memory having a plurality of areas each for storing data corresponding to the memory, a memory writing means for controlling writing of data to the non-volatile memory, and a memory reading means for controlling reading of data from the non-volatile memory. And display control means for controlling the CRT to display the video and audio states on the CRT based on the data corresponding to the video control signal and the audio control signal read from the non-volatile memory. A writing mode in which the video memory writing means is operable and the data is written in at least one of the areas. A constant section, the video memory and the reading means operable, television receiver and a read mode setting means for reading mode the data from the memory.