JPS6070883A - Image pickup recorder - Google Patents

Abstract

PURPOSE:To decrease the turning radius of a head and the drum diameter by turning four heads at a frequency being 1.5 times the frame frequency and allowing a tape to run over an angular range being 1.5 times of a conventional range to the turning circumferential face. CONSTITUTION:A signal processing circuit A processes a synthesis signal output Sk of a color image pickup tube 11 and converts a luminance signal into a synthesis signal Sm of a carrier chrominance signal. A switching circuit B converts a PCM signal Sp from a microphone 31 and the signal Sm into signals Sa-Sd using four consecutive field periods as one set to supply the signals to heads 1A-1D. The heads have an angular interval of 90 deg. to each other and are turned at a frequency being 1.5 times the frame frequency. Moreover, the turning radius of the heads and the diameter of the drum 4 are reduced to 75% of the conventional size, and the tape is run over an angular range 1.5 times the conventional range.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a public prosecution system that integrates a video camera and a VTR.

Vacuum technology and its problems A so-called 8mm video C1 is being considered, which integrates a video camera and a V'PR and makes it smaller.

In this 8mi 1no video, Ban, ノ, Ili, 'JlI
li output 1. The luminance signal 'ij-1 is processed and the luminance signal 'ij-1' and the red and blue color difference signals are output.
ka l' M 64' 4j ((When it is done, J(, color di% (@ number is j・' M
This carrier color signal and its FM signal are added to the 11th stage IA.
The neo-like addition signal Sm is 1. However, at this time, the (general color multiplication number is r:) sand feel + 1IJ
between I and (04 number field period and (11) to frequency interleave so that the phase side 1i111 is -(4)o) 'C1 (+ll ever) 3 no. : :+: and the phase is inverted every horizontal period in the other soil period Tb.

In addition, as an example of one field period as in the 11th frame, if the first 1/6 field period is the period Tp, the audio signal is converted to PCM (B code) and time-axis compressed. As shown in FIG. 1, the CM signal 3p is automatically set in the period F11.

Then, the signals Sm and Sp are changed to signals 3a and Sb which are not shown in FIG. The signal Sp is 1 shift, and the signal Sb is in the even field 1 period. As shown in Fig. 2, the rotary nitrogen gas I
” (IA) and (IB), respectively.

This -＼Nod (1A), (IB) is 1.1 ini 180, with 17 jimanos and rivers being different.
It is rotated at the frame frequency with an angular spacing of °. Then, the magnetic tape (2) is run diagonally at a constant speed over an angular range of over 210 degrees with respect to the rotating circumferential surfaces of the hens 1-(IA) and (Ill).

Note that (4) is a tape guided tram.

1 plus, as shown in Figure 3, the signal S, 1. Sb is 1
As a diagonal 1/+ (6'i ki) rack (3) for every feel 1-, and signal S8 as every other 1-rack (3A) of the 1-rack (3), No. 414 Sb beam ↓.

every other 1-rank (3B), and 711 next 1
It is recorded as ``ν.

And at this time, web (2) is head (18).

With respect to the rotating circumferential surface of (IB), it is wrapped around an angular range of more than 210' with "C", and (i(";' S,
I, S11 Ill signal Sm is i7.Ill in the previous one field period. ii'+: L, I: S No. Sp is the latter 1
/6 Soil I-period 'r'' p Since the trunk (3) smells (, the interval corresponding to the last 1:30° period, the signal Sm is written i,, +8, In the remaining section corresponding to the 30' period, Shin-Archive Sp is recorded. Also, Henno 1 (IA), (according to the old azimuth angle), 1-Ra.・2ri ni 38)
, (3+1), the azimuth angle is -h- in degrees '141
．． ;Ru.

This is the recording process for 8mm video a).

In addition, 414 No. 0) 411/-'r:, is the J-statement % 0) -1,1ljQ and 1-i' from the processing
+Things can be done.

In order to run on the rotating surface of this 8mm video tape (2), Kaheno F' (I8), and (IB), the hoop guide 1-hum (4) is required. When this 1-ram (4) becomes larger, not only the tram (4) but also the mechanism for moving the tape (2) 1'' becomes larger, so if the device as a whole becomes larger, (Let's compare the weight to −ζ.

Therefore, in order to downsize the device 15'' and increase its weight to 1 liter, it is preferable that the turning radius of the heads (IA) and (IB) and the radius of the tram (4) are small, but this is the third point. 1 Tezo Sonomaso 1-etc. haiku method 7.
I end up.

The first and second inventions focus on these points.71. 3rd 1
Without changing the tape size of the head (1Δ), the turning radius of (1,B) and the l-ram (4)
The aim is to make the device smaller and lighter in size and lighter.

Summary of the invention, 2, this invention is applicable to this invention.
I of the frame frequency, t+(t'j'' frequency (
As it rotates, the tape (2) is run over an angular range 1.5 times that in Fig. 2 by sliding it around its rotating circumferential surface. 4.I put it in my tonneau.

'A Example In Fig. 4, (1) is the color 1 most image tube, and in this example, this imaging leopard.' Separation knee cuckoo
It is assumed to be an ill picture tube, and has a combination of brightness multiplied by 1 + sy, 1 progressive color signal, and 7 x and 5 other signals.

Then C1 this (rogo S k is the preamplifier (IB) il
T! Luminance signal processing circuit (14) 6 supplied by M
The li degree signal sy is taken out, and this output Sy'
*', FM modulation times 1/after 8 GO etc. were removed.
g, is supplied to (15), converted to FMfW signal, and (i'+'') is supplied to (Ill) to the adder circuit (16).

Furthermore, the amplifier (13) Karino (11i 'J' Si
k or color i1. ．． ．． 7-i- is supplied to a processing circuit (21) to extract the red and row color difference wart signals, and these color difference signals are supplied to a modulation circuit (22) and a formation circuit (
A carrier wave signal is supplied from 41) and its color difference signal is 1u.
ll color sending signal (recon.

It is assumed that the angle two-phase flat (S1 change δIM (j:'+ So) S c. In this case, for example, the modulation circuit (22)
By controlling the phase of the general transmission signal supplied to , the signals Sc are frequency interleaved with each other for each field period. , the phase is inverted every horizontal period during period Tb.

Then, this signal Sc is supplied to four adder circuits (16), and from the adder circuit (16), the signals Sy and Sc are added as shown in FIG. The quotation mark Sm is taken out.

Furthermore, the audio signal from the microphone (31) passes through the breather (32) to the PCM modulation circuit (33) (J
(As shown in Figure 5B (same as Figure 1B),
It is converted into a PCM signal Sp located in period Tp.

This signal Sp is supplied to the switch circuit (34), and the signal Sm is supplied to the Suinona circuit 121+'/). Furthermore, a 1lil control signal is supplied from the formation circuit (41) to the ノ, ino thousand circuits (17), (34), and the outputs of the switch circuits (1'l), (34) (
ir! , -, are passed to the adder circuits (to 18) to (lliD). Gotsushi" C8 Figure 5 Bo J' Yofu,
Assuming that there are 4 consecutive soil periods C-1 as one set (when each soil period is '1°1 to 1'4), from the adder circuit (188) 11811), the fifth soil period C=
In the period '1'4 to l-+, the signal Sm is present, and in the following period 'I'li, the signal 5a-3d having the signal Sp is taken out.

Then, I believe that Sil~Sd or recording amplifier (19
Δ) ~ (190) to Heno[(l8) (Ill
). In this case, Henol' (IAJ~ (
Ill) has an angular spacing of 90° and -
. Also, at this time~Heno f” (IA)
The radius of rotation of ~ (Ill) and the diameter of the 1" ram (4) are:
It is approximately 75% larger than that in Figure 2, and the third
The tape (2) was run across an angle range of just over 15 degrees and was hit.

(To put it in detail, the rotation of the head (LA) and (IB), the diameter of the drum (4), and the 1-ram (4) G of the tape (2). Oblique angle (Lee-1・angle) is 1
．． The numbers are slightly different from those in Figure 1 and Figure 2, but what are their detailed examples? 1 omitted. 5a-3d are recorded on the sequential G tape (2) as one diagonal magnetic track for each field period: In the same way as in the case of Fig. 2, the data is recorded as shown in Fig. 13. In this case, as shown in FIG.
The interval is a 270° section of the rotation angle range of (Ill)-(ill), and the recording section with the numeral Sp is a 45° section.

Thus, according to the present invention, it is possible to record video and audio, but in this case, in particular, according to the present invention, the rotation radius of the heno F'(1^) to (ID) and the drum (
4) Mechanism for loading the tape (2) 1) The mechanism for loading the tape (2) is small in size, making it possible to reduce the overall size and making it lighter in weight (11), which is preferable for portable machines.

By the way, there are different standards for 8mm video, such as timeplex method j℃ and ■・1':) 4', l,
A lot.

Sixth, the recording method of the time brex method is reduced (1, 0 is changed to the NTSC method), and the 1 water 4i period is deleted). That is, by processing the output signal of the l'M picture tube, the brightness (Sy) is continuously extracted as shown in Δ in FIG.
Sea urchin red and blue color difference D? -Y ) , (1,+ -
The fourth-order signal S1 of Y) is continuously taken out. Then, the signal Sy becomes
J'. The time axis is compressed and the time axis is compressed for each ζ1 water period, and the luminance signal located at the end of the song 4 / 511 cl) IIJI is located between t〆 and Sai 16, and (, No. 1 Si is the 6th The signal is axially compressed by 11.1 in small increments for each horizontal period to form a line sequential signal Si' located in the period L1 of t&l/511.

Then, in Figure 0E, (Chang sy' and Isho3
FfSi''' is taken out by the variable force and made into the ζ chain 6's' signal Ss', and this signal Ss' is converted into the FM signal Sn as shown in Fig. 6F, and this signal Sn is , used in place of Kozuni-go Sm in Figure 1 1 and C to Figure 7 3■3
The signal Sa similar to that shown in FIG.

sb, and the signals Sa and Sb are sent to the head (1
8), (In)4 are supplied and recorded as shown in FIG.

The above is the method for recording 8mm video using the timeplex method. Incidentally, the signal can be reproduced as IJ by performing the procedure and processing reverse to those described above.

Figure 8 shows the case where B's invention is applied to a timeplex type device.

J, that is, ζ in FIG. 8, deflection ml of the image pickup tube (11)
The vehicle deflection signal Sν and the horizontal deflection signal Sb'', which are two consecutive vehicle deflection signals Sv and horizontal deflection signals Sb'', are supplied to the coil (I2) from the circuit (41). N1'S
This is the standard horizontal frequency of 6J in the C method, but the waveform is as shown in Figure 9. During the period L, the waveform goes from the level corresponding to the left edge of the screen to the level corresponding to the I'i@4 part of the screen. The waveform changes in a sawtooth pattern, and is reset to a level corresponding to the left end of the 1111 plane in Li between 9 IIJI.

Therefore, from the image pickup tube (1j),
6I, uni, I horizontal period is between IIJI (11z1 in y
A composite signal Sk' subjected to the interaxial ratio is extracted.

Then, this (B No. Sk'' or Siriy'nzo (13) is j
The luminance signal processing circuit (14) is supplied with ζ
Time axis 1-1=
The reduced luminance No. 14 Syl'l is taken out and the G4
', jS is supplied to the sui-nona circuit (53).

Furthermore, I11 1j-5k' from the amplifier (13) is supplied to the color E number processing circuit (15) and is then
), IF, small '4 to period ty ¥-1-8y'
The same separate C intercostal axis compressed red and blue color difference signals (R
-Y)'', (13-Y)'' are taken out, and
When i1'i'(lseY)', (13Y)'' is supplied to switch 111M/l (51),
During the 1V period, the 1IIj control signal whose level is inverted from the formation circuit (41) is supplied to the switch open 1#l (51),
So 11.
Y)''' and (13-'1')' are alternately 1 every horizontal period.
'Kll's father is taken away.

And this signal Si'' has a time axis length of 4./5
memory of H, in this example CCl) (',)2)
+J (When supplied, J (Ni ~ period L A formation amount b! 8 (
(41) to CCl) (52) The input clock WR is supplied with input, and in the following period L1, a read signal with a frequency four times the frequency of the clock WR written from the formation circuit (41) to the CCD (52) is supplied. The output clock RD is supplied.Therefore, from C0D (52), a signal like 4 in FIG. (At the same time, the CCD (52) is filled with data at four times the writing speed.
CC1) (52), the time axis is compressed to 115H in period L1 (σ Si° is extracted).

Then, this signal Si' is supplied to the switch circuit 1 (53), and the signal Si' is supplied from the forming circuit (41) to the switch circuit (41) for periods 1° and II.
Between JI and t1, the level is reversed by -4 (g
'i3 is fed to the switch circuit (53), and from the switch circuit (53), the borrowed amount Sy'' is shown as bo3 in IJ in FIG.
and signal SI.

A signal Ss'' having the intersection 11- is taken out.

Soshi゛(, this message-q Ss' is FM change 6) old +11M
8 (FJ4) and becomes the FM Shingetsu Sn. After that, Gono(+4"・Sn is supplied to the switch circuit (1'/l) and -(Fig. 4) supports Fig. 5 F, G. In place of the signal Sm, the signal "J'Sn" is used.
d, Konoi t; 'bow Sil-311 is heno)
'(]A) to ([D) are supplied.

Therefore, video and audio are recorded using the time breaker method.

It should be noted that - in the series, r, lI (elements I and 116 images V (in place of (I1), CCD, etc. 4) can be used.

As a result of the invention, the tape guide tram can be downsized, and the whole can be made smaller and lighter.

[Brief explanation of the drawing]

Figures 1, 4 and 8 are system diagrams of an example of this invention. (14) and (21) are signal processing engineering 14111 road, (1
5) , (:+:++ is a modulation circuit.

Claims (1)

[Claims] an image sensor, and 4111. The rotating magnetic heads of 4111rl are rotated at a frequency of 1.5 times the frame frequency, and the rotating magnetic heads of 4111rl are rotated at a frequency of 1.5 times the frame frequency. Glue L' ((Ra air tape (270°→-θ)
What is the image multiplied by the image sensor which is made to run diagonally at a predetermined speed over the angular range (0° < θ < 90°) of ? When the ship's first wheel F 1111 is supplied to a predetermined helical wheel running in the section of the corner range of 270', the rotation of the above 411111 (out of the ignition head, the predetermined The audio signal is time-axis compressed so that it is at position -4 during the period when the soto is traveling in the section of the angular range of θ, and this time-axis compressed audio signal is placed in the above 1st r constant head. It is assumed that the video signal and the sound signal are supplied during the period of traveling in the J range of the above θ, and the above video signal and the above sound signal are one 4t; Imaging recording shim: 1"".