JPS5833372A - Image pickup device - Google Patents

Abstract

PURPOSE:To extract a video signal interlacedly and to simplify the constitution of an image pickup device, by providing plural 1st registers that apply the image signal to a solid-state image pickup element and plural 2nd registers that leads out the image signal out of said image pickup element. CONSTITUTION:The photodetecting parts 1 including solid-state image pickup elements are distributed in a matrix form, and CCDs 2 are arrayed in a row to the parts 1. Then the electric charge in the CCD2 is shifted vertically by the pulse. This shifted electric charge is shifted to lateral transfer CCD3a and 3b successively, and the odd and even rows are supplied to charge-voltage converting parts 4a and 4b by the CCD3a and 3b respectively with use of the succeeding pulse. The outputs of the parts 4a and 4b are delivered to terminal 5a and 5b. At the same time, terminals 6a and 6b are used as the buffers of the CCD2, and the image signals of the odd and even rows are applied to these buffers. These signals are converted into the electric charge through voltage-charge converting parts 7a and 7b and then shifted laterally by the pulses given from lateral transfer CCD8a and 8b. Then the signals given from outside are supplied in parallel to the CCD2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a photographic device using a solid-state image pickup device such as a dcGD, and conventional f! In the recording mode, a photographed image is formed on an integrated image sensor, the image is accumulated as a photoelectric charge on the solid-state image sensor, and a good electric charge accumulated on the solid-state image sensor is ejected and used on a magnetic tape or the like. In addition to recording it as an image signal on a recording device such as a magnetic disk, on the playback screen, the *** number recorded on the recording device is transferred to a monitor such as a television and the image recording operation is executed. ing. Since the device uses a magnetic tape or magnetic disk as the recording device, please note that
The recording speed of the compensation to the device or the output speed of the signal from the recording device must be relatively low! Yes, on the other hand, Hiro high speed signals are required as image signals for monitors such as televisions.

For this reason, in the conventional apparatus, a memory device is provided, and in the recording mode, the photoelectric charge from the AM image element is once transferred to the memory device, and the optical signal is transferred to the leap vice and supplied to the recording device at low speed. Also, in playback mode, the signal is read out from the recording device at low speed,
The signals stored in the memory device were stored in a memory device and supplied to the motor at high speed.

That is, in conventional devices, the speed conversion between the successive output speed of signals from the recording device or the recording speed of signals to the recording device and the speed of image signals to be supplied to a monitor etc. acts as a variable tour memory. This is achieved by designing the memory device and adjusting the input and output speeds of signals to the memory device. Therefore, there are drawbacks such as a large capacity memory device is required for speed wave conversion, and the overall structure of the device becomes large.

Furthermore, in order to display the images obtained by the conventional imaging device on a monitor, it was necessary to have a memory for this purpose, but the video signal obtained from the above-mentioned imaging device could be transferred to a TV or other device.
When displaying one frame of the field, it is necessary to take out the movie with an ink race. This is because the two feed exposure times are different, resulting in a vibrating still image of a moving subject.

In view of the above points, the present invention provides an improved imaging device.

Another object of the present invention is to provide an imaging device that is optimal for outputting all video signals in an interlaced manner.

Other objects of the present invention will become clear from the following description of embodiments with reference to the drawings.

FIG. 1 is a plotter diagram showing one embodiment of the present invention. Although the figure shows an inter-twin type COD image sensor made by Image Senna Co., Ltd., which has a light receiving section and a transfer section, the present invention can also be applied to a frame sensor, other types of image sensors, and twin sensors. In FIG. 1, reference numeral 1 denotes a light receiving section, which constitutes a picture element. Such a light receiving section 1 is as shown in the figure! ) are arranged in an IJ tutus shape. 2
Hiro00D (eharge complete & dev
ice), one row of CODs are arranged in one row for nine light receiving sections 1. It receives and receives photocharges from the light receiving section 1 with A pulse φ-, which will be described later, and the charges that have been fully charged in QC;D2 are shifted vertically in COD2 by pulse φV. Charges shifted in ccn2 by pulse φV are sequentially shifted to lateral transfer OCDs 3m and 5b.

By pulse φV, odd number row, 0GD is applied to COD3m here.
Image signals of 3bK even-numbered rows are input. Lateral transfer COD3m
, 3b is transferred laterally by pulse φ radiation C0D3
a, 3b, and comes out to terminals 5m, 5b via charge-voltage converters 4a, 4b.

6 turtle * 6 b ti terminal. Since ccn2 is used as a buffer, it is a terminal for applying an image signal.

For example, signals for odd rows are applied to the terminal 6a, and signals for even rows are applied to the terminal 6b.

Reference numerals 7a and 7b are voltage-to-charge converters that convert signals expressed in voltage into charges.

8a and 8'b are horizontal transfer CODs, which shift the charges that have entered in series with a pulse φH and output them in parallel with a pulse φv. It is connected to acnsbHcan2 in the horizontal direction, and is configured so that signals input from the outside are stored in ccpz.

The 5GV1.5GV2a signal generator generates a no pulse φV in the vertical direction, and the generation timing is 5GV.
5GV2 is suitable for a TV device and a recording device that will be described later.

5eH1, 5GH2a signal generator, each pulse φ
The 5GH1 outputs 5H to the recording device.
GH2 has a configuration that is suitable for TV equipment.

SGG is a signal generator that generates a pulse φ@.

G is a gate circuit that switches the aforementioned signal generator by applying a mode switching signal.
A signal of 11, a signal of 10 when preparing for reproduction (transfer to COD), and a signal of 00 for reproduction (transfer to TV) are applied.

FIG. 2(&) is a block diagram showing one embodiment of an image capturing and recording apparatus using the solid-state image sensor shown in FIG.

In the figure, reference numeral 20 denotes a recording device such as a solid-state image sensor, a magnetic tape manufactured by Manufacturer 21, and a magnetic disk, which has control terminals such as a terminal E and a terminal R/W. When the terminal RK signal is input, the contents of the device can be read or written.
A signal indicating read or write is input to the VW terminal. It is normally read. A switch 22 is switched by a signal not shown. Here, the switching is done every 1/60 seconds. 23 is the terminal, from here TVi
I will explain my work.

The photographed image is formed through a shadow system, and 1iii 儂 is accumulated as a photoelectric charge on the receiving part 1 of the picture element, and pulses φG, φ
Read out the photocharge at H9φV, input a signal to terminal E,
Normal photographing is performed by applying a write signal to the terminal and recording an image signal on the recording device 121. In this case, the timing of pulses φG, φV, and φH is shown in Figure 6 (
a) The timing is as shown in K, and the time is the recording timing of the recording device [21], so te occurs *sev, 5evi.

The gate circuit G is controlled so that the output of 5GHi is applied to the solid-state image sensor 20. Here, the waveform 5a in FIG.
, 5b, the signals of odd and even rows are recorded in parallel.

Next, a case will be described in which the image signal in the recording device 21 is transferred to the solid-state image sensor 20 as shown in FIG.
Further, when a read signal is applied to the read/write terminal 1, the image signal in the recording device 21 is read out, and the image signal is read out from the terminal 6.
Image signals are input to a and 6b. As shown in Fig. 6(b), the input signal is C0D8 from the pulses φV and φHK.
a, enters C0D2 via 8b. In this case, the timing of pulses φV and φH is the same as described above.

Next, the m image signal in the solid-state imaging device 20 in FIG. 2(d) is
The case of outputting for display on a display device such as V will be explained.

As shown in FIG. 2 ((1)), the self-reflection of the solid-state image sensor 20 is cycled, and the switch 20 is switched by a 1/60 second timing signal (not shown).

Assuming that the terminal 5111 is now connected, image signals every other line out of every five image signals in the solid-state image sensor 20 are derived. When the terminal 5a is connected by a timing signal (not shown), the remaining image signals are derived.

Therefore, the image signal in ccn2 can be derived in an interlaced manner and sent to the TV equipment. The timing waveform in this case is shown in FIG. 3(e). Of course the timing is #! Figure 3 (a) t is faster than (b), and the gate circuit G generates a signal 1) SGV2.

It works to apply a 5GH2 signal to the solid-state image sensor 20.

By configuring the imaging device as described above, it is possible to send an image signal to the TV equipment without requiring a complicated configuration.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the imaging device according to the present invention, FIGS. 2(a), (b), (C), and (1) are diagrams explaining the imaging recording device, and FIG. ), (b), and (C) are waveform diagrams showing timing. 8a, 8b...CCD 5 a, 3 b -*"* COD applicant Canon Co., Ltd.

Claims (1)

[Claims] An imaging device having a solid-state imaging device, a plurality of second registers for applying an image signal to the solid-state imaging device, and a plurality of second registers for deriving an image signal from the solid-state imaging device.