JPH0583793U - Adjustment status display for multi-scan monitor - Google Patents

Abstract

(57) [Abstract] [Purpose] The on-screen display of the adjustment status of each circuit in a multi-scan monitor in which the horizontal frequency can be switched to multiple types is displayed on another television receiver. [Arrangement] An adjustment operation signal 21 from an input operation unit 3 provided on the remote control transmitter 9 or the main body 1 side is input to a microcomputer 4, and the microcomputer 4 responds to the on-screen corresponding to the character generator 5 based on the adjustment operation signal 21. Display signal 23
Is output. The on-screen display signal 23 output from the character generator 5 is a video signal 24 by the video output circuit 6 and the RF converter 3, and an RF signal of a specific channel.
25 and output. By inputting any one of these signals to another display device 8, on-screen display as shown in FIG.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a display device in which the adjustment state of each circuit in a multi-scan monitor whose horizontal frequency can be switched to a plurality of types is displayed on-screen on another television receiver.

[0002]

[Prior Art]

 Even in the multi-scan monitor, the factory shipment adjustment of the deflection circuit and the video circuit is necessary like the general display monitor and the television receiver. For example, adjustment of horizontal size, vertical size, image position, brightness and color level. On-screen display is easy for display monitors and TV receivers with a single horizontal frequency, and many devices have already implemented this. However, in the multi-scan monitor, the horizontal frequency is not constant, so it is difficult for the character generator (character generator) to respond, which makes on-screen display difficult.

[0003]

[Problems to be solved by the device]

 In view of the difficulty of the character generator, the present invention is a multi-scan in which the on-screen display signal is generated by itself based on a single horizontal frequency and the display is made by using another general television receiver or the like. It is an object to provide an adjustment status display device for a monitor.

[0004]

[Means for Solving the Problems]

 The present invention provides a microcomputer that inputs an adjustment operation signal by an operation of a remote control transmitter or an input operation section on the main body and outputs a control signal based on the adjustment operation signal, and a horizontal synchronization of a single cycle with the control signal from the microcomputer. The multi-scan monitor is equipped with a character generator that outputs an on-screen display signal based on the signal and the vertical synchronizing signal, and a video output circuit that outputs the signal from the character generator as a video signal of a predetermined level. The present invention provides an adjustment status display device for a multi-scan monitor in which the adjustment status is displayed on another screen by an output signal of the video output circuit on another television receiver. An RF converter for converting the video signal from the video output circuit into an RF signal and outputting the RF signal is provided, and the adjustment state of the multi-scan monitor is displayed on-screen by another television receiver by the RF signal. The present invention provides an adjustment status display device for the multi-scan monitor.

[0005]

[Action]

 An adjustment operation signal from the remote control transmitter or the input operation unit is input to the microcomputer, and the microcomputer causes the character generator to output a corresponding on-screen display signal based on the adjustment operation signal. The on-screen display signal output from the character generator is converted into a signal that can be received by other devices by the video output circuit and the RF converter.

[0006]

【Example】

 Hereinafter, an adjustment status display device of a multi-scan monitor according to the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of an essential part showing an embodiment of an adjustment status display device of a multi-scan monitor according to the present invention. In the figure, 1 is the main body of the multi-scan monitor, 2 is a light receiving section for receiving remote control signals, 3 is an input operation section on the main body side, 4 is a microcomputer, 5 is a control signal 22 from the microcomputer 4, and a horizontal synchronizing signal (HD ) And the vertical sync signal (VD) and the on-screen display signal 23 is output from the character generator (hereinafter referred to as "Kara-Zene"), 6 is the on-screen display signal 23 from the character generator 5 to the video signal 24 of a predetermined level. A video output circuit, 7 is an RF converter for converting the video signal 24 into an RF signal 25 of a specific channel, and 8 is another display device (television reception) for displaying the video signal 24 from the video output circuit 6 or the RF signal 25. And the like), 9 is a remote control transmitter that emits a remote control signal.

In the production process of the multi-scan monitor, various adjustments are required as in the case of other video equipment, but the contents that appear directly in the video itself, that is, the deflection size (horizontal, vertical), the image position (horizontal, (Vertical), brightness, contrast, color, hue, etc. can be seen at a glance to see if the adjustment is good or bad, so it is particularly important, and it is carefully adjusted before shipment from the factory. In recent years, more and more video equipment is being made capable of performing the above-mentioned adjustment by remote control operation, and the present invention is also premised on this remote control operation being possible. Therefore, as shown in the figure, the remote control transmitter 9 has a preset ON / OFF key 10 for switching whether or not the adjustment state is set, an adjustment mode selection key 11 for sequentially selecting the adjustment items in a toggle type, and the size of each adjustment. A down key 12 and an up key 13 are provided to change the strength, weakness, or position. The remote control signal generated by operating each of these keys is a dedicated data code different from other keys. Further, the main body side may be provided with the input operation unit 3 capable of performing the adjustment operation similar to the remote control operation. In this case, the signals input from the light receiving unit 2 or the input operation unit 3 to the microcomputer 4 are the same.

Next, the operation of the present invention will be described by taking the horizontal position adjustment of an image as an example. Turn on the preset ON / OFF key 10 of the remote control transmitter 9 to enter the adjustment state, and select the “horizontal (H) position” with the adjustment mode selection key 11. Press the Up key 13 to move the image to the right, and the Down key 12 to move to the left. A remote control signal (adjustment operation signal 21) by this series of operations is transmitted to the microcomputer 4 via the light receiving section 2. The microcomputer 4 outputs a control signal 22 corresponding to each key operation to the character generator 5. The control signal 22 is a signal for specifying symbols and characters and their display positions. The character generator 5 outputs a symbol or character signal (on-screen display signal 23) at a designated position from the control signal 22, the horizontal synchronizing signal (HD) and the vertical synchronizing signal (VD). It is a matter of the character generator 5 which symbol or character is used, but in the present embodiment, it is assumed that the key 10 is operated to display a and b and the key 11 is operated to display c. Further, when the key 12 or 13 is operated, the square symbol B shown in the figure sequentially moves to the left or right at the upper part of the scale display.

On the other hand, the frequencies of the horizontal synchronizing signal (HD) and the vertical synchronizing signal (VD) are fixed. Therefore, if a general-purpose general television receiver is used as the display device, the horizontal sync signal has a frequency of 15.734 KHz and the vertical sync signal has a frequency of 60 Hz. The on-screen display signal 23 is converted into a video signal 24 having a predetermined level by the video output circuit 6 (for example, 1 Vpp). This video signal is input to the video input terminal of another display device 8 and displayed as shown. The RF signal 25 of the RF converter 7 is used when displaying on a device that does not have a video input terminal. The relationship between each key of the down key 12 or the up key 13 and the movement amount of the square symbol b is that the number of variable steps is evenly distributed to the number of graduations, and when the key is pressed by the number of the distributed steps, the square symbol Move one scale. The initial position of the square symbol B when the keys 12 and 13 are not operated is the center of a. That is, in this embodiment, a certain state is set as a reference, and the amount of variation from the reference is displayed. To make other adjustments, select it with the adjustment mode selection key 11 and operate the down key 12 or the up key 13 as described above. After the adjustment is completed, turn the preset OFF with the preset ON / OFF key 10. As a result, the on-screen display disappears. The original circuit control by the operation of the down key 12 or the up key 13 is such that the control signal 22 is output from the microcomputer 4 to the character generator 5 and at the same time, the control signal 26 is output to the corresponding circuits for control.

[0010]

[Effect of the device]

 As described above, according to the present invention, an on-screen display signal that can be displayed by another device is output even in a multi-scan monitor in which it is difficult to display on-screen on its own screen because the horizontal frequency is not constant. Therefore, it is possible to check the deflection amplitude and image-related adjustment status on-screen display, which is convenient for services such as factory shipment adjustment and post-sale repair and adjustment services.

[Brief description of drawings]

FIG. 1 is a block diagram of an essential part showing an embodiment of an adjustment state display device of a multi-scan monitor according to the present invention.

[Explanation of symbols]

 1 Multi-scan monitor main body 2 Remote control signal receiving section 3 Main body side input operation section 4 Microcomputer 5 Character generator 6 Video output circuit 7 RF converter 8 Other display equipment 9 Remote control transmitter 22 Control signal 23 On-screen display signal 24 Video signal 25 RF signal

Claims (2)

[Scope of utility model registration request] 1. When adjusting each circuit in a multi-scan monitor capable of switching the horizontal frequency to a plurality of types, an adjustment operation signal is input by an operation of a remote control transmitter or a main body side input operation unit, and the adjustment operation is performed. A microcomputer that outputs a control signal based on the signal, a character generator that outputs an on-screen display signal based on the control signal from the microcomputer, a horizontal synchronization signal and a vertical synchronization signal of a single cycle, and a signal from the character generator. And a video output circuit for outputting a video signal of a predetermined level, wherein the adjustment state of the multi-scan monitor is displayed on another screen by an output signal of the video output circuit on another television receiver. Adjustment status display device for multi-scan monitor. 2. The video signal from the video output circuit is RF
The multi-scan according to claim 1, further comprising an RF converter for converting the signal into a signal and outputting the signal, and the adjustment state of the multi-scan monitor is displayed on-screen by another television receiver by the RF signal. Monitor adjustment status display device.