JPH04326261A - Image pickup device - Google Patents

Abstract

PURPOSE:To display synthesized character signals for example, at the receiver of an NTSC system, without being missed by moving the positions of characters to be synthesized even when images are picked up after adding a device to optically change the aspect of a picture. CONSTITUTION:A video signal a and a synchronizing signal are outputted from an image pickup device 1 and respectively inputted to a synthesizing circuit 2 and a character generating circuit 3. Under the control of a microcomputer 4, the character generating circuit 3 outputs the character signal synchronized with the synchronizing signal to the synthesizing circuit 2. The character signal is synthesized with the video signal a by the synthesizing circuit 2, turned to a video signal b and inputted to a receiver 10 having the screen of the current aspect (of the NTSC system, for example,) and a receiver 11 having a laterally long screen as it is or after being recorded and reproduced by a video recorder 5. Next, when an anamorphic lens 7 is mounted, it is instructed from the microcomputer 4 to the character generating circuit 3 by turning a switch 8 on to move the position of the character signal to be synthesized to the inside of the screen.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an imaging device.

0002

2. Description of the Related Art For example, in a video imaging apparatus, there is an apparatus that synthesizes signals such as characters and superimposes information such as date and time on the screen and records the same. Also, by optically compressing the screen, the aspect ratio of the screen can be changed and the image taken, giving a more spacious feeling when viewed on a receiver with a wide aspect screen with a large aspect ratio. There is a device.

0003

[Problem to be Solved by the Invention] There is no problem when viewing an image whose aspect ratio has been optically compressed and the aspect ratio has been changed on a receiver with a wide aspect screen. On a machine, the screen is compressed horizontally, resulting in an unnatural image. Therefore, by cutting off both ends of the video signal,
A method is used to make it fit within the screen. However, when the above two devices are used at the same time, and the resulting image is viewed on a receiver with the current aspect ratio, with both ends of the video signal cut off, the information such as the date and time that has been combined into the video signal will be lost. , which is normally displayed in the corner of the screen, is no longer displayed on the receiver screen. This will be explained next using a specific example.

FIG. 2 shows a conventional device. In the same figure,
1 is a video imaging device (camera) that outputs a video signal; 3
2 is a character generation circuit that generates a character signal; 2 is a synthesis circuit that combines a video signal from the imaging device 1 and a character signal from the character generation circuit 3; 4 is a microcomputer that controls the character generation circuit 3; 5 is a synthesis circuit. 2 is a video recorder that records the video signal from 2; 7 is an anamorphic lens that can be attached to and removed from the imaging device 1 and optically changes the aspect ratio of the screen; 10 is a receiver with the current (NTSC system) aspect ratio. ,1
1 is a receiver with a horizontally long screen having a different aspect ratio.

A video signal a and a synchronization signal are outputted from the imaging device 1 and inputted to a synthesis circuit 2 and a character generation circuit 3, respectively. The character generation circuit 3 outputs a character signal synchronized with the synchronization signal to the synthesis circuit 2 under the control of the microcomputer 4. The character signal and the video signal a are combined by a combining circuit 2 to become a video signal b. This signal is output as it is or is recorded and reproduced by the video recorder 5 to become an output signal, which is input to the receiver 10 (video signal c) and the receiver 11 with a horizontally long screen (video signal d). The state of the video signal of each part at this time is the video signal a in (a) of Fig. 4.
It will look like ~d. In the receiver 11 with a horizontally long screen, no-signal portions appear at both ends of the screen, but the synthesized character signals are displayed normally. Next, when the anamorphic lens 7 is attached, the video signals of each part will be as shown in (b) of FIG. In the receiver 11 with a horizontally long screen, the video signal is expanded and displayed on the entire screen, so that a screen without graphical distortion as shown in (b) d can be obtained. However, in the television receiver 10, both ends of the video signal are truncated and displayed, so the character signal is also truncated, although there is no graphic distortion as in (c).

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an imaging device that solves the above-mentioned problems.

[0007]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a case in which a device for optically changing the aspect ratio of a screen is installed in an imaging device that synthesizes a character signal on a captured video signal. The present invention is characterized by comprising means for changing the position of character signals to be synthesized.

[0008]

[Operation] According to the present invention, when a device for optically changing the aspect ratio of the screen is added, by moving the position of the character signals to be synthesized, the resulting image is received as an image of the current aspect ratio. When viewed with both ends of the video signal cut off,
Information such as the date and time synthesized with the video signal displayed in the corner of the screen will also be displayed without missing anything.

[0009]

Embodiment FIG. 1 shows a first embodiment of the present invention. In the figure, 1 is a video imaging device (camera) that outputs a video signal, 3 is a character generation circuit that generates a character signal, and 2
Reference numeral 4 indicates a synthesis circuit for synthesizing the video signal from the imaging device 1 and the character signal from the character generation circuit 3, 4 a microcomputer for controlling the character generation circuit, 5 a video recorder for recording the video signal from the synthesis circuit 2, and 7 is an anamorphic lens that can be attached to and removed from the imaging device 1 and optically changes the aspect ratio of the screen, 8 is a switch, and 10 is the current state (NTSC).
11 is a receiver with a horizontally long screen having a different aspect ratio.

A video signal a and a synchronization signal are outputted from the imaging device 1 and inputted to a synthesis circuit 2 and a character generation circuit 3, respectively. The character generation circuit 3 generates a character signal synchronized with the synchronization signal and sends it to the synthesis circuit 2 under the control of the microcomputer 4.
Output to. The character signal and the video signal a are combined by a combining circuit 2 to become a video signal b. This signal is output as it is or is recorded and reproduced by the video recorder 5 to become an output signal, which is input to the receiver 10 (video signal c) and the receiver 11 with a horizontally long screen (video signal d). At this time, the state of the video signal of each part is as shown in FIG.
It will look like d. Next, when the anamorphic lens 7 is attached, by turning on the switch 8, the microcomputer 4 instructs the character generation circuit 3 to move the position of the character signal to be synthesized to the inside of the screen. As a result, the receiver 11 with a horizontally long screen as shown in (d) of FIG.
In addition, even if both ends of the video signal are truncated on the receiver 10 as shown in FIG.

(Other Embodiments) FIG. 3 shows a second embodiment of the present invention. In the figure, 9 is an anamorphic lens 7.
This is a detection circuit for detecting whether or not the device is attached.Other like numbers are the same as those in FIG. The operation in this embodiment will be explained. On a normal screen, as in the first embodiment, there is no graphic distortion on either the receiver 10 or the receiver 11 with a horizontally long screen as shown in (a) of FIG. 4, and the synthesized character signal is also correct. Is displayed. Next, when the anamorphic lens 7 is used, it is detected by the detection circuit 9, and the detection signal is inputted to the microcomputer 4. Upon receiving this, the microcomputer 4 instructs the character generation circuit 3 to move the position of the character signal to be synthesized to the inside of the screen. As a result, even if both ends of the video signal are truncated in the receiver 11 with a horizontally long screen as shown in (a) d of FIG. 4, as well as in the receiver 10 as shown in (a) c of FIG. The signal will now be displayed without any loss.

0012

[Effects of the Invention] As explained above, according to the present invention,
In an imaging device that synthesizes a character signal on a captured video signal, even if a device is added to optically change the aspect ratio of the screen, it is possible to change the current aspect ratio by moving the position of the characters to be synthesized. Even if both ends of the video signal are truncated and displayed on a receiver with a screen of a ratio (for example, NTSC system), the synthesized character signal can be displayed on the receiver without being missing.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a first embodiment of the invention.

FIG. 2 is a block diagram of a conventional example.

FIG. 3 is a block diagram of a second embodiment of the invention.

FIG. 4 shows the state of the video signal in each part of FIGS. 1 to 3.
It is a diagram schematically shown.

[Explanation of symbols]

1 Video imaging device 2 Synthesizing circuit 3 for combining video signals and character signals Character generation circuit 4 for generating character signals Microcomputer 5 for controlling character generation circuit 3 Video recorder 7 for recording video signals Removable, optical Anamorphic lens 8 that changes the aspect ratio of the screen Switch 9 Detection circuit 10 that detects whether or not the anamorphic lens 7 is attached A receiver with the current aspect ratio

Claims (1)

[Claims] Claim 1: An imaging device that synthesizes a character signal on a captured video signal, comprising means for changing the position of the synthesized character signal when a device for optically changing the aspect ratio of the screen is installed. An imaging device characterized by: