JPS63177668A - Magnetic recording and reproducing device integrated with camera - Google Patents

Abstract

PURPOSE:To improve the function and the performance of reproducing by supplying a reproduced video signal to the CCD of a camera part at the time of reproducing and obtaining a reproduced video signal delayed by one field. CONSTITUTION:A switch 6 is switched to the reproduced signal side at the time of normal reproducing; and when the reproduced signal is supplied to a CCD solid-state image pickup element, the reproduced signal from a reproduced signal processing circuit 7 and the signal delayed by one field from the CCD solid-state image pickup element are mixed in an output processing circuit 12, and two pictures in the direction of the time base are allowed to overlap to obtain the noise cancelling effect. The switch 6 is switched to the side of an output terminal 13 at the time of slow reproducing until a normal picture is reproduced, and the switch 6 is switched to the reproduced signal side at the time of reproducing the normal picture to perform noiseless slow reproducing. The reproduced signal is delayed by one field and is outputted at the time of reproducing to control a timing signal in such direction that jitter is cancelled, thereby correcting jitter of the reproduced picture.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a camera-integrated magnetic recording and reproducing device (hereinafter referred to as a VTR) which is integrated with a camera using a charge transfer type (hereinafter referred to as COD) solid-state image sensor. This is related to

Conventional technology In recent years, there has been a demand for home-use Votaple VTHs to be smaller and lighter, including video cameras, and easier to use.1 The cables that connect the two have been eliminated and integrated, reducing the total weight and improving ease of use. This is in the direction of making it easier. The cameras used have also changed from cameras that use image pickup tubes to cameras that use CCD solid-state image sensors, which can be made more compact. This type of camera-integrated VTR
-1 Recording is often done on stationary home VTRs, and the level of demand for playback quality is increasing year by year.

Problems to be Solved by the Invention On the other hand, some conventional camera-integrated VTRs are only for recording, and some even have a playback function.

In many cases, the functions and performance were the minimum required.

In view of the above problems, the present invention aims to improve the playback function and performance of a camera-integrated VTR.

Means for Solving the Problems To solve the above-mentioned problems, the present invention provides a charge-coupled transfer type solid-state image sensor with a charge-coupled transfer type solid-state image sensor, which is located in contact with each starting end of the vertical transfer path, and supplies charge to each vertical transfer path. a solid-state image sensor having a horizontal transfer path, and an input section located in contact with the starting end of the horizontal transfer path, which samples an input video signal, converts it into electric charge, and supplies it to the horizontal transfer path; A switch that supplies a reproduction signal of the magnetic recording/reproducing device to an input section of the solid-state image sensor during reproduction, an output processing circuit that outputs the output of the solid-state image sensor to a video output terminal, and a charge in the solid-state image sensor. and a timing generation circuit that synchronizes the timing of transfer of the reproduction signal with a reference signal generated from the synchronization signal of the reproduction signal.

Effect: With the above-described configuration, the present invention supplies a reproduced video signal to the COD of the camera unit that is not used or is not used during reproduction.
By obtaining a field-delayed playback video signal, it is possible to improve the playback function and performance.

EXAMPLE A schematic configuration of a camera-integrated VTR according to the present invention will be explained below.

In the present invention, during playback, the COD of the camera section is converted into one part of the playback signal.
It is characterized by improving playback function and performance by using it as a field delay element.
A method of using a CD solid-state image sensor as a one-field delay element will be described with reference to the drawings.

FIG. 1 shows a CCD solid-state imaging device with an external input function according to an embodiment of the present invention. Here, reference numeral 1 denotes a charge storage section composed of a photodiode or a phototransistor that stores charge according to the amount of light received when used as a camera. Each charge accumulated in this charge storage section 1 is 1
The data is transferred to each transfer unit of each of the two vertical transfer paths at any time during each field period. As a result, the charges accumulated in each charge accumulation section 1 according to the brightness of the object imaged on the COD solid-state image sensor are not mixed with the charges accumulated in other charge accumulation sections 1, and are placed next to each other. The data is transferred to each transfer unit of the vertical transfer path 2 located at .

In the vertical transfer path 2, charges are transferred for 1c1 horizontal scanning lines every horizontal scanning time, and charges for one horizontal scanning line are transferred to the horizontal transfer path 3 provided in contact with the bottom end of the vertical transfer path 2. is transferred to each transfer unit on the horizontal transfer path once every horizontal period. The horizontal transfer path 3 transfers all the charges transferred from each vertical transfer path 2 to the output amplifier section 16 during one horizontal period. As described above, each charge unit corresponding to the brightness of the subject transferred to each transfer unit of each vertical transfer path 2 at the same time is not mixed with other charge units.
One field is output from the output amplifier 16 in an orderly manner.

In the present invention, a horizontal transfer path 4 having the same structure as the horizontal transfer path 3 is added in contact with each start end of the vertical transfer path 2, and an input to a CCD solid-state image pickup device is provided at the start end of the added horizontal transfer path 4. The reproduced video signal is sampled and divided into charge units, and an input section 6 for supplying the charges is provided at the starting end of the added horizontal transfer path 4.

During reproduction, when a reproduced video signal is supplied to the CCD solid-state image sensor, the input section 5 divides the reproduced video signal into charge units, and the charge units are transferred to the horizontal transfer path 4 to each vertical transfer path 2 during one horizontal period.
Charge is transferred to the starting edge of .

At the end of one horizontal period when the horizontal transfer paths 4 are full, each unit of charge is transferred to the starting end of each adjacent vertical transfer path 2 all at once.

Thereafter, each vertical transfer is performed sequentially, collected in the horizontal transfer path 3, and outputted from the output amplifier 16, similarly to when used as a camera. As described above, the horizontal transfer path 4 and the input section 6 are connected to the CO
By adding it to the D solid-state image sensor, a one-field delay line can be configured with the COD solid-state image sensor.

Next, the external configuration of COD will be explained.

6 is a switch for supplying a reproduced video signal to the CCD solid-state image sensor during reproduction. 7 is a reproduction signal processing circuit, which processes the signal reproduced from the magnetic medium 9 by the magnetic head 8; 1o is a magnetic head for recording, and is often used in conjunction with the magnetic head 8 for reproduction. Reference numeral 11 denotes a circuit that processes the output of the COD solid-state image sensor during recording and records it on the magnetic medium 9 through the recording head 1o. The output signal processing circuit 12 processes the reproduced signal from the reproduced signal processing circuit 7 and the signal delayed by one field from the COD solid-state image sensor, and outputs the processed signal to the video output terminal 13.

Reference numeral 14 denotes a timing generation circuit, which generates a reference signal from the reproduced signal and generates the timing of the COD transfer operation in accordance with the reference signal.

The circuit operation for improving the playback function and performance using the above configuration will be described.

First, during normal playback, the switch 6 is set to the playback signal side, and the playback signal is supplied to the COD solid-state image sensor. The output processing circuit 12 overlaps two pictures in the time direction by mixing the direct reproduction signal from the reproduction signal processing circuit 7 and the signal delayed by one field from the COD solid-state image sensor at an appropriate ratio. Therefore, a noise canceling effect in the time direction can be expected. In this case, the S/N of the reproduced image
can be improved.

Next, during % slow reproduction, the normal screen of the video reproduced from head 8 is reproduced only once per % field.

Therefore, when this normal screen field is displayed, switch 6 is switched to the playback signal side, and until the next normal screen field is played, switch 6 is switched to the output terminal side and the normal screen is maintained for two field times. When a normal screen is output to the video output terminal 13, the switch 6 is switched to the reproduction signal side. By operating in this manner, noiseless slow playback can be achieved.

In addition, during normal playback, the playback output is always delayed by one field through the COD solid-state image sensor before being output, and by controlling the timing signal at that time in a direction that cancels out the jitter included in the playback signal, it is possible to correct jitter in the playback image. can.

Effects of the Invention As described above, according to the present invention, the COD solid-state image sensor on the camera side can be used as a 1-field delay line during playback in a camera-integrated VTR, resulting in various improvements in playback functions and performance. Available for

[Brief explanation of the drawing]

The figure is a block diagram showing a camera-integrated magnetic recording/reproducing device according to the present invention. 1...Charge storage section, 2...Vertical transfer path, 3...Horizontal transfer path, 4...Horizontal transfer path, 6...... - Input conversion section, 6... switch, 12... output processing circuit.

Claims (1)

[Claims] A horizontal transfer path that is located in contact with each starting end of the vertical transfer path of a charge-coupled transfer type solid-state image sensor and supplies charge to each vertical transfer path; A built-in solid-state imaging device has an input section that samples a video signal, converts it into an electric charge, and supplies the sample to the horizontal transfer path, and supplies a reproduction signal of a magnetic recording/reproducing device to the input section of the solid-state imaging device during reproduction. a switch; an output processing circuit that outputs the output of the solid-state image sensor to a video output terminal;
A camera-integrated magnetic recording and reproducing device, comprising a timing generation circuit that synchronizes the timing of charge transfer within the solid-state image sensor with a reference signal created from a synchronization signal of the reproduction signal.