JPH03248692A - Audio/video system - Google Patents

Abstract

PURPOSE:To improve operability by providing a means to record the adjusting condition of picture quality or sound quality, etc., on a recording medium. CONSTITUTION:When an operational signal from a key operating part 10 is the one to instruct the recording of picture quality.sound quality data, that operational signal is decoded by an operational signal decoding means 11, and this result is supplied to a picture quality control means 12 and a sound quality control means 13. As the result, picture quality data and sound quality data are supplied to a data writing means 5 from the picture quality control means 12 and the sound quality control means 13 respectively, and as the result, the picture quality.sound quality data is recorded on the recording medium 1 as being synchronized with a video signal and a sound signal recorded before. Thus, the adjustment of the picture quality and the sound quality can be executed automatically at the time of reproducing a video and a sound sources.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a system for processing and adjusting video signals and audio signals of audio equipment and video equipment.

(b) Conventional technology In recent years, in order to match a wide variety of video and audio sources to individual preferences, processing and adjustment of image quality such as brightness and color tone, strength and weakness of each audio frequency, sound field settings, etc. Although it has become possible to process and adjust sound quality, these processed and adjusted states were fixed by equipment that had the ability to process and adjust image and sound quality.

Therefore, in order to obtain optimal image and sound quality, it is necessary to
Even with audio sources, it was necessary to process and adjust the image and sound quality each time they were set up.

For example, Japanese Patent Application Laid-open No. 176381/1983 (Ho 4
N5/'93) shows a configuration in which the degree of edge enhancement is changed during playback according to the recording mode (difference in tape speed during recording). However, even with this configuration, the results of adjustments made by the user, such as image quality, cannot be retained.

(c) Problems to be solved by the invention In such cases, for example, by simply operating a VTR tape to play back, it is possible to optimize the image and sound quality when playing back the video and audio sources recorded on that tape. to do,
If televisions, sound processors, amplifiers, etc. operated automatically, operability would be dramatically improved.

(d) Means for Solving the Problems The audio/video system according to the present invention includes a recording medium (1) for recording video signals, audio signals, and image quality/sound quality data, and extracting video signals from the recording medium (1). A video signal reproducing means (2), an audio signal reproducing means (3) for extracting an audio signal from the recording medium (1), and the recording medium (1).
1) Data reading means (
4), a data writing means (5) for writing image quality/sound quality data into the recording medium (1), a monitor (6) for projecting an image, and processing signals from the video signal reproducing means (2), A video signal circuit (7) that drives a monitor (6), a speaker (8) that generates audio, and an audio signal reproducing means (
3), an audio signal circuit (9) that processes the signal from the AV device and drives the speaker (8), a portion of the operation keys (10) to be operated when operating the AV equipment, and a portion of the operation keys (10). ), an image quality control means (12) for controlling image conditions such as brightness and color tone, and audio conditions such as the strength and weakness of each audio frequency and the state of sound field settings. The output information from the operation signal decoding means (11) and the data reading means (4) is supplied to the image quality control means (12) and the sound quality control means (13). Also, output information from the image quality control means (12) and the sound quality control means (13) is supplied to the data writing means (5). (e) Operation The operation signal from the key operation unit (10), for example, the operation signal for adjusting the brightness of the image, is decoded by the operation signal decoding means (11), and the result is sent to the image quality control means (12). Supplied. For example, an operation signal for adjusting the level of a sound around IKHz is similarly decoded by the operation signal decoding means (11), and the result is supplied to the sound quality control means (13).

In addition, the image quality/sound quality data recorded on the recording medium (1) in synchronization with the video signal and audio signal can be read by the data reading means (
4), and the result is read by the image quality control means (1).
2) and the sound quality control means (13).

As a result, the image quality control means (12) controls the video signal circuit (7).
is adjusted to realize processing and adjustment of the video signal according to the operation contents of the key operation section (10) and the contents of the image quality data of the recording medium (1). The sound quality control means (13) also adjusts the audio signal circuit (9) to process and adjust the audio signal according to the operation content of the key operation unit (10) and the content of the sound quality data of the recording medium (1). Realize.

Furthermore, the operation signal from the key operation section (10)
If the operation signal is an instruction to record sound quality data, the operation signal is decoded by the operation signal decoding means (11), and the result is supplied to the image quality control means (12) and the sound quality control means (13).

As a result, the image quality data is supplied from the image quality control means (12) and the sound quality data is supplied from the sound quality control means (13) to the data writing means (5). ) is recorded in synchronization with the already recorded video and audio signals.

(F) Example Hereinafter, an example of the present invention will be described in detail based on FIGS. 1 to 14.

FIG. 2 shows the configuration of the AV equipment (14) of this embodiment. This consists of a television that processes and adjusts video signals and displays them on a monitor (6), a VTR that records video signals, audio signals, and image quality/sound quality data, a sound processor that processes and adjusts audio signals, and a sound processor that processes and adjusts audio signals. It consists of an amplifier that amplifies the sound and a speaker (8) that generates the sound. Each AV machine! (14) is connected to the control base (15) via a control line (22). Also, TV and VTR,
A VTR and a sound processor, a sound processor and an amplifier, and an amplifier and a speaker are interconnected via an AV line (23) that transmits audio or video signals.

As shown in FIG. 3, each AV device (14) includes a central control unit (CPU) (16), memory means (RONl, R
In addition to the configuration of a general microcomputer consisting of A M ) (17), etc., it is equipped with a light receiving section (20) that receives an operation signal (optical signal) from a remote control (21). It is connected to the CPU (16) via the communication interface (19), and the CPU (16) is connected to the control line (2) via the communication interface (18).
2) is connected.

A computer program constituting the image quality control means (12), sound quality control means (13) and operation signal decoding means (11) is written in the ROM (17).

Communication between the communication interfaces (18) provided in each AV device 5 (14) is carried out through the respective control lines (2
2) and in a predetermined formant via the control bus (15).

Figure 4 shows an example of the communication data format.
The start information section SB indicates the start of data, the master information section MAB indicates the source device, the slave information section SAB indicates the destination device, and how the destination device should interpret and process the next DB. It is composed of a control information section CB indicating how the destination device is being sent, a data section DB indicating how to control the destination device, and an end information section ED indicating the end of the data.

FIG. 5 shows an example of the contents of the data section DB, and shows the image quality (
The operation code part OPC indicates the processing contents such as sound quality) control, image quality (sound quality) registration, image quality (sound quality) request, etc., and the brightness of the image,
A first operand part OPR1 indicating the target of the processing contents such as color tone, color saturation, contrast, sharpness, sound strength at each audio frequency, sound field setting state, and the degree of processing and adjustment of each target. The second operand part 0
Consists of PR2.

Figure 6 shows the recording format of video signals, audio signals, and image quality/sound quality data recorded on a VTR tape as a recording medium (1), with video signals recorded on video tracks and audio signals recorded on audio tracks. be done. Further, image quality/sound quality data is recorded on a control track that employs the CTL coding method (see, for example, Magazine Videocom pages 116 to 118).

Figure 7 shows an example of the recording format of image quality and sound quality data recorded on the control track. , sharpness, strength at each frequency, sound field settings, etc.
It consists of an item JT indicating the object to be adjusted, and a level LV indicating the degree of processing/adjustment of the object.

Figures 8 to 14 show the RO of each AV device (14).
Of the computer programs written in M(17), this represents the basic configuration of a program related to the present invention.

Below is the operation achieved by the above system.
This will be explained along the flowcharts shown in FIGS. 8 to 14.

FIG. 8 shows the main routine of the VTR, in which key operations are constantly checked (24) by the remote controller (21).
), a check (25) for data reception by the communication interface (18), and the data reading means (4).
The system is waiting to read the recorded data (26), and if there is some key human power, the key human power signal is deciphered (27) L, and depending on the decoding result, the following process (
28) is performed.

Additionally, when some data is received, the received data is decoded (29) L, and the process described below (3) is performed according to the decryption result.
0) is performed.

In addition, when some data is read from the tape that is the recording medium (1), the read data is decoded (31) L
, a process (32) to be described later is performed according to the decoding result.

FIG. 9 shows the main routine of the television, sound processor and amplifier, and the remote control (2
1) and the data reception check (34) by the communication interface (18). If there is any key input, the key input signal is decoded (35). Depending on the results, processing (36) such as adjusting the brightness level of the video and setting the sound field of the audio is performed.

Also, when some data is received, the received data is decoded (
37) L, processing (38) described later is performed according to the decoding result.

Hereinafter, since the processing of the television, sound processor, and amplifier is basically the same, the explanation will be given using the television as an example.

Data When playing back a special AVTR, if the image quality data is read from the tape and is decoded as brightness data in step (31), the VTR will read the image quality data. Using the data, the brightness control data shown in FIG. 12 is transmitted (42) to the television via the control bus (15).

At this time, the television determines in step (34) that there is received data, and in step (37), the data is decoded as brightness control data, and based on the data, the brightness is adjusted as shown in FIG. control (48) is performed.

When playing back an AV TR with data indicated, if the instruction to record image/sound quality data is decoded in step (27), the V
In the TR, as shown in FIG. 10, the request instruction for image quality data is directed to the television, and the request instruction for sound quality data is directed to the sound processor and amplifier, and the control bus (15
) are transmitted (39), (40).

At this time, the television determines in step (34) that there is received data, and in step (37), the data is decoded as request data for image quality data, and the 13th
Transmissions (43) to (47) of each image quality data shown in the figure are performed.

At this time, the VTR determines in step (25) that there is received data, and the data is decoded in step (29). If the data is decoded to be the registration of brightness data, the brightness data is recorded on the tape (41) as shown in FIG. 11.

(G) Effects of the Invention As described above, in the audio/video system according to the present invention, image quality/sound quality data can be recorded in synchronization with video signals and audio signals with a simple operation, and once the data has been recorded, the audio/video system can If it is a source, the optimal image
Adjustments to image and sound quality, which conventionally had to be made by the operator every time the video/audio source changed in order to obtain the audio condition, are now done automatically when the video/audio source is played, making it extremely easy to operate. I can say that it will be.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the basic functions of the audio/video system according to the present invention, Fig. 2 is a block diagram showing the overall system configuration, Fig. 3 is a block diagram of each AVilli device, and Fig. 4 is a communication diagram. Figure 5 is an explanatory diagram showing the contents of the data part of the communication data format. Figure 6 is an explanatory diagram showing the format of the signal recorded on tape. Figure 7 is an explanatory diagram showing the format of the signal recorded on tape. Explanatory diagrams showing the recording format of the image quality/sound quality data recorded on the control track of the
1, FIG. 12, FIG. 13, and FIG. 14 are flowcharts showing the operation of the apparatus based on a computer program. 1... Recording medium, 5... Data writing means.

Claims (1)

[Claims] (1) An audio/video system including televisions, VTRs, etc., characterized by comprising means for recording adjustment conditions such as image quality or sound quality on a recording medium.