JP3035988B2 - Color television camera device - Google Patents

Description

BACKGROUND OF THE INVENTION A. Field of the Invention The present invention relates to a color television camera device which digitizes and outputs an imaging output obtained by a solid-state imaging device.

B. Related Art Generally, as a standard type television camera device, a composite video signal of a standard television system such as the NTSC system is formed from a camera head unit equipped with an imaging unit and an imaging output supplied from the camera head unit. Control unit (CCU) that includes a signal processing circuit such as an encoder that performs control and a control signal derivation circuit that generates a control signal to be supplied to the camera head unit.
Is connected by a multi-core camera cable, a so-called CCU-less unit that houses a signal processing circuit such as an encoder, a synchronization signal generation circuit, etc. in the camera head and outputs a composite video signal of the standard television system. Cameras are known.

Conventionally, these television camera devices output a three-primary-color signal obtained as an analog imaging output from an imaging unit mounted on a camera head unit, or a composite video signal of a standard television system formed from the three-primary-color signal. Output.

In recent years, digitalization of sradio devices such as a camera control device, a format conversion device, and a frame synchronizer has been promoted, and performance has been improved by digital signal processing. In addition, various digital image processing techniques for video signals have been developed, such as EDTV processing for converting television signals into EDTV signals by performing color signal separation, high-definition information separation, and the like using digital filters.

C Problems to be Solved by the Invention By the way, as described above, the digitization of the sradio apparatus has been promoted. However, since the conventional television camera apparatus does not have a digital output function, the television camera apparatus is not provided with the digital output function. When digitizing an external device connected to the external device, it is necessary to provide analog-digital conversion means on the external device side.

In addition, since the television camera device is connected to an external device that handles three primary color signals and an external device that handles a composite video signal, it is desirable to be able to cope with these external devices when a digital output function is mounted. .

Further, when a digital output function is installed in a television camera apparatus, if the image output is output as parallel data, the transmission lines of the image output must be arranged in parallel for the number of bits of the parallel data. Must be arranged in parallel for the number of bits of the parallel data, so that it is difficult to install this transmission line.

In view of the above, the present invention has been made in view of the above-described conventional television camera apparatus, and outputs a digital three primary color signal obtained by digitizing three primary color signals obtained as an image pickup output, and a digital composite video signal formed from the digital three primary color signals. The present invention provides a color television camera device which is equipped with a digital output function to supply a digital three primary color signal and a digital composite video signal to various digitized studio devices.
Another object of the present invention is to provide a color television camera device which converts a digital primary color signal and / or a digital composite video signal from parallel data to serial data and outputs the data.

D Means for Solving the Problems A color television camera device according to the present invention is obtained by an A / D conversion unit for converting three primary color signals output from a solid-state imaging device into a digital signal, and the A / D conversion unit A signal processing unit for forming a digital composite video signal from the digital three primary color signals; a first output terminal for outputting the digital three primary color signals obtained by the A / D conversion unit to the outside; A second output terminal for outputting a composite video signal to the outside, and the A / D
A P / S converter for converting the digital three primary color signals output from the converter via the first output terminal from parallel data to serial data, and outputting the serial data obtained by the P / S converter to the outside And an output terminal for performing the operation.

Further, the color television camera device according to the present invention includes an A / D conversion unit that converts the three primary color signals output from the solid-state imaging device into a digital signal, and a digital composite from the digital three primary color signals obtained by the A / D conversion unit. A signal processing section for forming a video signal; a first output terminal for outputting the digital three primary color signals obtained by the A / D conversion section to the outside; and a digital composite video signal obtained by the signal processing section to the outside. A second output terminal for outputting, a P / S converter for converting the digital composite video signal output from the signal processing unit via the second output terminal from parallel data to serial data, And an output terminal for outputting serial data obtained by the S converter to the outside.

Further, the color television camera device according to the present invention includes an A / D conversion unit for converting the three primary color signals output from the solid-state imaging device into a digital signal, and a digital composite signal obtained from the digital three primary color signals obtained by the A / D conversion unit. A signal processing unit for forming a video signal, and a P / P for selectively converting the digital three primary color signals obtained by the A / D conversion unit and the digital composite video signal obtained by the signal processing circuit from parallel data to serial data. An S converter and an output terminal for outputting serial data obtained by the P / S converter to the outside are provided.

E Function In the color television camera device according to the present invention, the three primary color signals output from the solid-state imaging device are converted into digital signals by the A / D converter, and signal processing is performed from the digital three primary color signals obtained by the A / D converter. And a digital composite video signal. Then, the digital three primary color signals obtained by the A / D converter are output from the first output terminal, and the digital composite video signal obtained by the signal processing unit is output from the second output terminal to the outside. Further, the P / S converter converts the digital three primary color signals supplied from the A / D converter through the first output terminal from parallel data to serial data, and converts the serial data from the output terminal to the outside. Output.

Further, in the color television camera device according to the present invention, the three primary color signals output from the solid-state imaging device are converted into digital signals by the A / D converter, and signal processing is performed on the digital three primary color signals obtained by the A / D converter. And a digital composite video signal. Then, the digital three primary color signals obtained by the A / D converter are output from a first output terminal, and the digital composite signal obtained by the signal processor is output from a second output terminal to the outside. Further, the P / S conversion unit converts the digital composite video signal supplied from the signal processing unit via the second output terminal from parallel data to serial data,
This serial data is output to the outside from the output terminal.

In the color television camera device according to the present invention, the P / S conversion unit and an output terminal for outputting serial data obtained by the P / S conversion unit to the outside can be provided as an adapter device.

Further, in the color television camera device according to the present invention, a digital primary color signal obtained by an A / D conversion unit that converts the three primary color signals output from the solid-state imaging device into a digital signal, and a signal processing unit from the digital primary color signal. The digital composite video signal to be formed is
The converter selectively converts parallel data into serial data, and takes out the serial data from an output terminal.

G. Embodiment Hereinafter, an embodiment of the color television camera device according to the present invention will be described in detail with reference to the drawings.

The color television camera device according to the present invention has a first
It is configured as shown in the figure.

The color television camera device shown in FIG.
Decomposed into three primary color light components imaging light L _i is incident from the imaging lens (1) via an optical low-pass filter (2) by the color separation prism (3), three pieces of three primary images of the subject image CCD ( The present invention is applied to a three-panel solid-state imaging device that captures images using a CCD (charge coupled device) image sensor (4R), (4G), or (4B), and is an NTSC color television camera device.

In this color television camera device, the three CCD image sensors (4R) constituting the imaging unit,
(4G) and (4B) use the spatial picture element shifting method,
As shown in the figure, for the CCD image sensor (4G) for capturing a green image, 1/2 of the spatial sampling period τ _s of the picture element is used.
However, the CCD image sensors (4R) and (4B) for red image capturing and blue image capturing are shifted from each other. And the above three CCD image sensors (4R), (4G),
(4B) is driven by a CCD drive circuit (not shown),
Imaging charge in each pixel is read by the reading clock of four times the sampling frequency _{f s (f s = 4f sc} ) color sub-carrier frequency f _sc.

The three CCD image sensors (4R), (4G), and (4B) that adopt the spatial picture element shifting method described above use the CCD image sensor (4G) for capturing the green image and the red image sensor for capturing the three primary colors of the subject image. Each CC for imaging and blue imaging
Spatial sampling is performed at positions where the D image sensors (4R) and (4B) are shifted by τ _s / 2. Accordingly, the three primary color imaging output signals S _{R *} , S _{G *} , S _{B *} by the respective CCD image sensors (4R), (4G), (4B) have signal spectra as shown in FIG. 3A. The above CCD image sensor (4G)
Sampling frequency f of green imaging output signal _{SG *
It s} component and the respective CCD image sensors (4R), and has a red imaging output signals S _{R *} and the blue image pickup output signals S _{B *} of the respective sampling frequency f _s of the component and the reverse phase to each other by (4B) .

Then, the the read clock of the 4f _sc becomes the sampling frequency f _s CCD image sensor (4R), (4
G) and (4B) readout signals S _{R *} , S
_{G *} and SB _* are correlated double sampling circuits (5
R), (5G), and (5B) are supplied to the level adjustment circuit (6).

The correlated double sampling circuits (5R), (5G), (5
B) is the above CCD image sensor (4R), (4G), (4B)
For the three primary color image pickup output signals S _{R *} , S _{G *} , S _{B *} read out from
The reset noise is reduced by sampling and holding the output level based on this.

Further, the level adjustment circuit (6) includes three primary color imaging output signals S _{R *} , which have been subjected to reset noise reduction processing by the correlated double sampling circuits (5R), (5G), and (5B).
Level adjustment processing such as white balance adjustment is performed for _{SG *} and SB _* . The three primary color image pickup output signals subjected to the level adjustment processing by the level adjustment circuit (6)
SR _* , _{SG *} and SB _* are supplied to analog-to-digital (A / D) converters (7R), (7G) and (7B).

Each of these A / D converter (7R), (7G), (7B) , said three primary color image pickup output signal _{S R *, S G *,} S B * clock rate or the CCD image sensor is equal to the sampling rate f _s of (4R), is given by (4G), (4B) the same f _s = 4f _sc timing generator clock of a clock frequency f _s is not shown in the read clock. Then, the A / D converter (7R), (7G), (7B) , said Mihara imaging output signals S _{R *,} S _{G *,} the S _{B *} directly digitized at a clock rate f _s of the 4f _sc Te, the Mihara imaging output signals S _{R *,} S _{G *,} digital three primary color signals having the same output spectra as the spectra shown in S _{B *} of the Figure 3 a D _{R *,
DG *} and DB _* are formed.

The A / D converter (7R), (7G), digital three primary color signals obtained by _{(7B) D R *, D} G *, D B * is supplied to the signal processing unit (8), a digital three primary colors Output via the signal output terminals (9R), (9G) and (9B).

As shown in FIG. 4, the signal processing unit (8) has a specific configuration as shown in FIG. 4, wherein the A / D converters (7R), (7G),
The digital three primary color signals D _{R *} , D _{G *} ,
Interpolation processing units (22R), (22G), (22B) where DB _* is supplied via delay circuits (21R), (21G), (21B), and these interpolation processing units (22R), (22G) , and (22B) the digital three primary color signals of interpolated image from _{D R **, D G **,} D B ** is supplied adder (23R), (23G), (23B), adders (23R ), (23G), (23B), gamma correction processing circuits (24R), (24G), (24B) to which each additional output signal is supplied
If, the respective A / D converter (7R), formed by an image enhancement processor of a digital three primary color signals D _{R *} obtained by (7G), is D _{G *} is supplied (25).

The image enhancement processing section (25) includes the A / D converter (7
R), (each digital color signals D respectively obtained by 7G) of the 4f _sc clock rate f _{s R *,} from D _{G *,} digital clock rate 2f _s twice i.e. 8f _sc of the clock rate f _s The image enhancement signal D _{IE **} is formed. Then, the image enhancement processing unit (25) is a digital image enhancement signal D _{IE **} to the adder of the clock rate of the 2f _s (2
3R), (23G), and (23B).

In addition, each of the interpolation processing units (22R), (22G), (22B)
It is each A / D converter (7R), (7G), digital three primary color signals D clock rate f _s of the 4f _sc supplied from _{(7B) R *, D G} *, interpolation processing D _{B *} By applying
Twice That 8f _sc clock rate 2f _s digital three primary color signals D _{R **} in the clock rate f _s, D _{G **,} to form a D _{B **.} Then, the interpolation processing units (22R), (22
G), (22B), said 2f _s digital three primary color signals D _{R **} clock rate, D _{G **,} the adder D _{B **} (23R),
(23G) and (23B).

Further, the adders (23R), (23G), and (23B)
The image enhancement processing unit (25) digital image enhancement signal D _{IE **} to the interpolation processing unit of the clock rate of 2f _s supplied by (22R), (22G), clock 2f _s supplied by (22B) Rate digital three primary color signals D _{R **} , D _{G **} , D
_The image enhancement processing is performed by adding to _{B **} . Then, the adder (23R), (23G), (23B) , the image enhancement processed digital three primary color signals D _{R **,} D _{G **,} the the D _{B **} gamma correction circuit (24R), (24G) and (24B).

The gamma correction processing circuits (24R), (24G),
(24B) is a digital three primary color signal D _{R **} , D _{G **} , which has been subjected to image enhancement processing by the adders (23R), (23G), and (23B).
Subjected to gamma correction processing D _{B **,} gamma-corrected digital three primary color signals D _{R **,} D _{G **,} and outputs the D _{B **.}

In this way, the processed signal section (8), gamma correction and image enhancement processing 2f _s digital three primary color signals D _{R **} clock rate that has been subjected, D _{G **,} and outputs the D _{B **.} The signal processing unit (8) a digital three primary color signals of the 2f _s becomes a clock rate output from the _{D R **, D G **,} D B ** are supplied to a color encoder (10), a digital Analog (D / A) converter (11R), (11G), (11B)
Supplied to

Then, the D / A converters (11R), (11G), (11B)
Is a digital three-primary-color signal D supplied from the signal processing unit (8) and having a high resolution of a clock rate of 2 _{fs.
R **} , _{DG **} , and _{DB **} are converted into analog signals to form analog three primary color image pickup output signals _ROUT , _GOUT , and _BOUT . These D / A
The analog three-primary-color imaging output signals R _OUT , G _OUT , and B _OUT obtained by the converters (11R), (11G), and (11B) pass through low-pass filters (12R), (12G), and (12B), respectively. Output from output terminals (13R), (13G) and (13B).

As shown in FIG. 5, a specific configuration of the color encoder (10) is supplied from the signal processing unit (8) to the digital three primary color signals D _{R **} and D _{R at} a clock rate of 2 _{fs. G **,} delay circuit D _{B **} is a matrix circuit (31) supplied, the digital luminance signal D _{Y **} formed by a matrix circuit (31) is supplied (32)
When, the the matrix circuit the digital color difference is formed by the (31) signal _{D CR *, D CY *,} D I *, each low pass filter is D _{Q *} is supplied (33), (34), (35) , (36)
And the digital color difference signals DI _* and _{DQ *} formed by the matrix circuit (31) are applied to the low-pass filters (3
5) and (36), a modulation circuit (37), an interpolation processing circuit (38) to which a modulation output signal from the modulation circuit (37) is supplied, and an interpolation circuit (38). An adder circuit (39) to which a processing output signal is supplied and to which a digital luminance signal _{DY **} formed by the matrix circuit (31) is supplied via the delay circuit (32).

Said matrix circuit (31), the 2f _s becomes clock rate digital three primary color signals D _{R **} in, D _{G **,} D _B by performing the matrix calculation processing for _**, digital luminance signal of 2f _s becomes clock rate D _Y and _** and digital video signal D _{BF **} for viewfinder, the digital color difference signal of the clock rate of _{f s D CR *, D CB} *, D I *, to form the D _{Q *.} Digital luminance signal D _{Y **} is the clock rate 2f _s formed by the matrix circuit (31),
This corresponds to a luminance signal Y _* having a frequency distribution as shown in FIG. 3B.

Then, the color encoder (10), said digital three primary color signals D _{R **,} D _{G **,} a digital component video signal of D _{B **,} the delay circuit from the matrix circuit (31) and (32) The digital luminance signal D _{Y **} is output through the low-pass filters (33) and (34), and the digital color difference signals _{DCR *} and D _{CB *} are output from the matrix circuit (31). I do.
The delay circuit (32) gives the digital luminance signal _{DY **} delay characteristics corresponding to the low-pass filters (33) and (34).

Further, in the color encoder (10), the modulation circuit (37) includes the digital color difference signals D _{I *} , D _{i *} , supplied from the matrix circuit (31) via the low-pass filters (35) and (36). Performs a modulation process for performing direct two-phase modulation on _{DQ *} . The output signal modulated by the modulation circuit (37) corresponds to a modulated color difference signal having a frequency distribution as shown in FIG. 3C including odd harmonics of the color subcarrier frequency _fsc .

Furthermore, the interpolation circuit (38), for modulating the output signal by the modulation circuit (37) performs a digital filtering process of extracting the f _sc component and 7f _sc component by the filter characteristics shown in FIG. 3 D, forming a digital modulated color difference signal of the frequency distribution as shown in FIG. 3 E clock rate 2f _s corresponding to 8f _sc.

The color encoder (10) is connected to the digital luminance signal _{DY **} output from the matrix circuit (31) via the delay circuit (32) and the interpolation processing circuit (3).
By adding the digitally modulated chrominance signal having the clock rate of 2 _fs formed in 8) by the adder circuit (39), a digital composite video signal _{DCS *} having a frequency distribution as shown in FIG. _3F is formed.

That is, the color encoder (10), said the signal processing unit (8) gamma correction and digital three primary D _{R **} in 2f _s clock rate which has been subjected to image enhancement,
D _{G **,} D for _{B **,} the digital luminance signal to ensure a high clock rate of the 2f _s resolution D _{Y **} and, f _s of a clock rate of the respective digital color difference signal D _{CR *,} D _{CB *}
And a digital composite video signal _{DCS **} with a high clock rate of 2 _fs and a high resolution and a digital video signal _{DBF *} for a viewfinder.

The digital component image signal output from the color encoder (10), that is, the digital luminance signal _{DY **} and the digital color difference signals _{DCR *} and _{DCB *}
Are supplied to the D / A converters (11Y), (11CR) and (11CY).

And the above D / A converter (11Y), (11CR), (11CB)
_Forms analog component video signals Y _OUT , CR _OUT , and CB _OUT by _{converting the} digital luminance signal _{DY **} and the digital color difference signals _{DCR *} and _{DCB *} into analog signals. Analog component video signals Y _OUT , CR obtained by these D / A converters (11Y), (11CR), (11CB)
_OUT and CB _OUT are low-pass filters (12Y) (12C
R) and (12CB) through the analog video signal output terminal (13
Y), (13CR) and (13CB) are output.

Further, the digital composite video signal D _{CS **} output from the color encoder (10) is _supplied to a D / A converter (11C
S) and output via the digital composite video signal output terminal (9CS).

The D / A converter (11CS) is a digital composite video signal securing the high resolution of the clock rate of 2 _fs.
An analog composite video signal CS _OUT is formed by _converting D _{CS **} into an analog signal. The analog composite video signal CS _OUT obtained by the D / A converter (11CS) is output to an analog composite video signal output terminal (13C) via a low-pass filter (12CS).
Output from S).

Furthermore, the digital video signal D for the viewfinder output from the color encoder (10)
_{BF **} is a digital-to-analog (D / A) converter (11BF)
Supplied to The D / A converter (11BF) is an analog of the digital video signal D _{BF **,} to form a video signal BF _OUT for viewfinder. This video signal BF
_OUT is supplied from a signal output terminal (13BF) to a not-shown electronic viewfinder device via a low-pass filter (12BF).

The color television camera device having such a configuration is
Regarding the three primary color imaging output signals S _{R *} , S _{G *} , S _{B *} obtained by the above CCD image sensors (4R), (4G), (4B),
Digital primary color signals D _{R *} , D _{G *} , D _{B *} digitized by the A / D converters (7R), (7G), (7B), respectively
And these digital three primary color signals D _{R *} , D _{G *} , D _{B *}
To the digital three primary color signal output terminals (9R), (9G),
Since (9B) via arranged to output, digital three primary color signals _{D R *, D G *,} D B * a handle external device the digital three primary color signal output terminal (9R), (9G), (9
B) can be connected externally. Further, the A / D converter (7R), (7G), digital three primary color signals D _{R *} formed by (7B), D _{G *,} for D _{B *,} the interpolation processing by the signal processing unit (8) gamma correction and image enhancement processing 2f _s digital three primary color signals D _{R **} clock rate that has been subjected along with performing, D _{G **,} D _{B **} to form, these digital three primary color signals D _{R **,} D _{G * * And DB **} to the above D / A / D converter (11
R), (11G), and (11B) are output as analog three primary color signals R _OUT , G _OUT , and B _OUT from the three primary color signal output terminals (13R), (13G), and (13B). Therefore, an external device that handles the analog three primary color signals R _OUT , G _OUT , and B _OUT is connected to the three primary color signal output terminals (13R), (1
External connection to 3G) and (13B). further,
With respect to the digital three primary color signals D _{R **} , D _{G **} , and D _{B ** having} the clock rate of 2 _fs formed by the signal processing unit (8), the color encoder (10) performs digital component video signals, that is, digital luminance. signal D _{Y **} and the digital color difference signal D _{CR **,} D _{B **} and to form a form a digital composite video signal D _{CS **,} the digital composite video the digital composite video signal D _{CS **} Since output is performed via the signal output terminal (9CS), an external device that handles the digital composite video signal DCS _** can be externally connected to the digital composite video signal output terminal (9CS). Furthermore, the digital component video signal or the digital luminance signal D _{Y **} and the digital color difference signal D _{CR *,} D _{CB *} and the D / A converter which is formed by the color encoder (10) (11Y),
(11CR) and (11CB) are converted to analog to form analog component video signals Y _OUT , CR _OUT , and CB _OUT , and these analog component video signals Y _OUT , CR _OUT , and CB _OUT
The component signal output terminals (13Y), (13C
R) and (13CB) so that external devices that handle analog component video signals Y _OUT , RY _OUT , and BY _OUT can be connected to the component signal output terminals (13Y), (13CR), and (13CB). Can be connected externally. Further, the digital composite video signal DCS _** formed by the color encoder (10) is converted into an analog signal by the D / A converter (11CS), and the analog composite video signal CS
_OUT , and the analog composite video signal CS _OUT is output from the analog composite video signal output terminal (13CS). Therefore, an external device that handles the analog composite video signal CS _OUT can be output to the analog composite signal output terminal. External connection to terminal (13CS).

The color television camera apparatus includes a control circuit block (14) connected to control signal terminals (9CTL) and (13CTL) and a synchronization circuit block (15) connected to a synchronization signal input terminal (13SYNC). And a microphone input terminal (9MCI) to which a signal line of an audio signal obtained by a microphone (not shown) is connected, and a microphone output terminal (9MCI) connected to the microphone input terminal (9MCI).
O).

In addition, this color television camera device has a sixth
Various adapter devices as shown in FIGS. 7, 7 and 8 are prepared.

The adapter device (40) shown in FIG. 6 is an adapter device for a camera control unit that handles digital three primary color signals. The digital three primary color signal output terminals (9R), (9
G), (9B) and digital composite video signal output terminals (9C
S), microphone output terminal (9MCO), control signal terminal (9CTL)
Digital primary color signal input terminals (41R), (4
1G), (41B), digital composite video signal input terminal (41C
S), microphone input terminal (41MCI), control signal terminal (41CT
L) etc. are provided.

The adapter device (40) is connected to the microphone input terminal (41).
A / D converter (42) connected to the MCI), the output terminal of the A / D converter (42), the digital primary color signal output terminals (9R), (9G), (9B) and the control signal Terminal (41CTL)
Is a data select (44) connected to the data input end
And a parallel / serial (P / S) converter (45) connected to the output terminal of the data selector (44), and a serial signal output terminal connected to the output terminal of the P / S converter (45) (46S), and a microphone output terminal (46MCO) connected to the microphone input terminal (41MCI).

In the adapter device (40), the microphone input terminal (41MCI) is connected to the microphone output terminal (9MCO) of the color television camera device body, and the microphone input terminal (41MCI) is connected to the microphone input terminal (41MCI). The microphone output terminal (9M
An analog audio signal is supplied via the CO). The analog audio signal supplied to the microphone input terminal (41MCI) is output to the outside as an analog signal via the microphone output terminal (46MCO), and the A / D converter (42)
And is supplied to the P / S converter (45) via the data selector (44). The P / S converter (45) converts the parallel data into serial data. The above data output terminal (46
S) is output to the outside.

In addition, the digital three primary color signal input terminals (41R),
(41G) and (41B) are digital three primary color signal output terminals (9R) and (9
G) and (9B), and these digital three primary color signal input terminals (41R), (41G), and (41B) are connected to the digital three primary color signal output terminals ( Digital three primary color signals DR _* , _{DG *} , and DB _* are supplied via (9R), (9G), and (9B). These digital primary color signal input terminals (41R), (4
1G), (41B), the digital three primary color signals D _{R *} ,
_{DG *} and DB _* are connected to the P / P through the data selector (44).
The data is supplied to the S converter (45), converted from parallel data to serial data by the P / S converter (45), and output from the data output terminal (46S) to the outside as serial data.

Further, the control signal terminal (41CTL) is a control signal terminal (9CTL) on the color television camera device main body side.
The control signal terminal (41CT
L) is supplied with a control signal from the color television camera apparatus body via the control signal terminal (9CTL). The control signal supplied to the control signal terminal (41CTL) is supplied to the P / S converter (45) via the data selector (44), and the P / S converter (45) Is converted to serial data, and is output to the outside from the signal output terminal (46S) as serial data.

The digital composite video signal input terminal (41CS)
Is connected to the digital composite video signal output terminal (9CS) on the color television camera apparatus main body side, and is not connected in the adapter apparatus (40).

An adapter device (50) shown in FIG. 7 is an adapter device for a digital video tape recorder for recording a digital composite video signal, and is a digital primary color signal output terminal (9R) on the color television camera device main body side. , (9G), (9B), digital composite video signal output terminal (9CS), microphone output terminal (9MCO), control signal terminal (9CTL)
R), (51G), (51B), a digital composite video signal input terminal (51CS), a microphone input terminal (51MCI), a control signal terminal (51CTL), and the like.

The adapter device (50) is connected to the microphone input terminal (51).
MCI), an A / D converter (52) connected to the digital composite video signal input terminal (51CS), a signal processing unit (53), and an output terminal of the signal processing unit (53). A data selector (54) in which the output terminal of the A / D converter (52) and the control signal terminal (51CTL) are connected to the data input terminal side;
A P / S converter (55) connected to the output terminal of the data selector (54); a data output terminal (56S) connected to the output terminal of the P / S converter (55); Terminal (5
1MCI) and a microphone output terminal (56MCO).

In the adapter device (50), the microphone input terminal (51MCI) is connected to the microphone output terminal (9MCO) of the color television camera device body, and the microphone input terminal (51CMI) is connected to the microphone input terminal (51CMI). The microphone output terminal (9M
An analog audio signal is supplied via the CO). The analog audio signal supplied to the microphone input terminal (51MCI) is output to the outside as analog via the microphone output terminal (56MCO), and the A / D converter (52)
And is supplied to the P / S converter (55) via the data selector (54). The P / S converter (55) converts the parallel data into serial data. The above data output terminal (56
S) is output to the outside.

In addition, the digital composite video signal input terminal (51CS)
Is connected to the digital composite video signal output terminal (9CS) of the color television camera apparatus body, and the digital composite video signal input terminal (51CS)
Is supplied with a digital composite video signal DCS _** from the color television camera apparatus main body through the digital composite video signal output terminal (9CS). The digital composite video signal DCS _** supplied to the digital composite video signal input terminal (51CS) is supplied to the third signal processing section (53) by a pre-filter having a filter characteristic as shown in FIG. since the band-limited below approximately f _s / 2, as shown in FIG H, third digital composite video data D as shown in Figure I of the clock rate of f _s by downsampling
Converted to _{CS *} . Then, the digital composite video data D a clock rate of f _s obtained by the signal processing unit (53) _{CS *} is the via the data selector (54) P /
The data is supplied to an S converter (55), converted from parallel data into serial data by the P / S converter (55), and output from the data output terminal (56S) to the outside as serial data.

Further, the control signal terminal (51CTL) is connected to the control signal terminal (9CTL) of the color television camera device body.
The microphone input terminal (51CT
L) is supplied with a control signal from the color television camera device body via the control signal terminal (9CTL) from the color television camera device. The control signal supplied to the control signal terminal (51CTL) is supplied to the P / S converter (45) through the data selector (54), and the P / S converter (55) Is converted into serial data, and is output to the outside from the data output terminal (56S) as serial data.

Note that the digital three primary color signal input terminals (51R),
(51G) and (51B) are the digital three primary color signal output terminals (9R) and (9
G) and (9B), and is in a non-connection state in the adapter device (50).

Further, the adapter device (60) shown in FIG. 8 selectively outputs the digital three primary color signals DR _* , _{DG *} , DB _* and the digital composite video signal _{DCS *} as serial data. , The three primary color signal output terminals (9R), (9G), and (9B), the digital composite video signal output terminal (9CS), the microphone output terminal (9MCO), and the control signal terminal (9CTL) on the color television camera device side. Corresponding digital primary color signal input terminals (61R), (61G), (61B), digital composite video signal input terminal (61CS), microphone input terminal (61MCI), and control signal terminal (61CTL) are provided.

This adapter device (60) is connected to the microphone input terminal (61
MCI), an A / D converter (62), a signal processing unit (63) connected to the digital composite video signal input terminal (61CS), and an output terminal of the signal processing unit (63). The output terminal of the A / D converter (62), the digital primary color signal input terminals (61R), (61G), (61B) and the control signal terminal (61C
TL) connected to the data input end side, a P / S converter (65) connected to the output end of the data selector (64), and the P / S converter (65). ) Data output terminal (66S) connected to the output terminal and the microphone output terminal (66MCO) connected to the microphone input terminal (61MCI)
And

In the adapter device (60), the microphone input terminal (61MCI) is connected to a microphone output terminal (9MCO) on the color television camera device side,
The microphone input terminal (61MCI) is connected to the microphone output terminal (9MCO) from the color television camera
An analog audio signal is supplied via. The analog audio signal supplied to the microphone input terminal (61MCI) is output to the outside as analog via the microphone output terminal (66MCO), and is digitized by the A / D converter (62). The P / S converter (65) is supplied to the P / S converter (65) via the data selector (64) and
The data output terminal (66S) is converted from parallel data to serial data by 5) and converted as serial data.
Output to the outside.

In addition, the digital three primary color signal input terminals (61R),
(61G) and (61B) are digital three primary color signal output terminals (9R), (9
G) and (9B), and these digital three primary color signal input terminals (61R), (61G), and (61B) are connected to the digital three primary color signal output terminals ( Digital three primary color signals DR _* , _{DG *} , and DB _* are supplied via (9R), (9G), and (9B). These digital primary color signal input terminals (61R), (6
1G), (61B), the digital primary color signals D _{R *} ,
_{DG *} and DB _* are connected to the P / P through the data selector (64).
The data is supplied to the S converter (65), converted from parallel data to serial data by the P / S converter (65), and output to the outside from the data output terminal (66S) as serial data.

Furthermore, the digital composite video signal input terminal (61C
S) is connected to the digital composite video signal output terminal (9CS) of the color television camera apparatus body, and is connected to the digital composite video signal input terminal (61).
CS) is supplied with a digital composite video signal DCS _** from the color television camera apparatus main body via the digital composite video signal output terminal (9CS). The digital composite video signal input terminal a digital composite video signal D _{CS **} supplied to (61CS) is a digital composite video signal D _{CS **} of the clock rate of f _s by the down-sampling or the like by the signal processing unit (63) After being converted to the data, the data is supplied to the P / S converter (65) via the data selector (64), and is converted from parallel data to serial data by the P / S converter (65). Is output from the data output terminal (66S) to the outside.

Further, the control signal terminal (61CTL) is connected to the control signal terminal (9C
TL) and this control signal terminal (61
CTL) is supplied with control data from the main body of the color television camera device via the control signal terminal (9CTL). The control data supplied to the control signal terminal (61CTL) is transmitted to the P / S through the data selector (64).
The data is supplied to a converter (65), converted from parallel data into serial data by the P / S converter (65), and output from the data output terminal (66S) to the outside as serial data.

In the above embodiment, the color television camera device according to the present invention is the adapter device (40), (50), which converts a digital three primary color signal or a digital composite video signal from parallel data to serial data and outputs the data.
Although the configuration (60) is mounted, the device may be provided with a P / S converter for the digital three primary color signals and the digital composite video signal.

H Effect of the Invention As described above, in the color television camera device according to the present invention, the three primary color signals output from the solid-state
The digital signal is converted into a digital signal by the D converter, and a digital composite video signal is formed by the signal processor from the digital three primary color signals obtained by the A / D converter.
The digital primary color signal obtained by the conversion unit is output from a first signal output terminal, and the digital composite video signal obtained by the signal processing unit is output from a second signal output terminal. Since the digital primary color signal supplied via the first output terminal is provided with a P / S converter for converting parallel data into serial data and outputting the same, the digital primary color signal is externally output as serial data. Can be.

Further, in the color television camera device according to the present invention, the three primary color signals output from the solid-state imaging device are converted into digital signals by the A / D converter, and the digital three primary color signals obtained by the A / D converter are converted into digital composite signals. A video signal is formed, and a digital primary color signal obtained by the A / D converter is output from a first output terminal, and a digital composite signal obtained by the signal processor is output from a second output terminal. And a P / S converter for converting the digital composite video signal supplied from the signal processing unit via the second output terminal from parallel data to serial data and outputting the data. Can be output to the outside as serial data.

In the color television camera device according to the present invention, the P / S conversion unit and an output terminal for outputting serial data obtained by the P / S conversion unit to the outside are provided as an adapter device, so that a digital composite An external device that handles a video signal can be externally connected.

Still further, in the color television camera device according to the present invention, the digital three primary color signals output from the A / D converter via the first signal output terminal or the second signal output terminal from the signal processing unit. The digital three-color signal or the digital composite video signal is output to the outside as serial data by providing a P / S conversion unit that converts a digital composite video signal output through the PDP into parallel data from serial data and outputs the data. be able to.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a three-panel color television camera device to which the present invention is applied. FIG. 2 is a schematic diagram showing an arrangement state of each CCD image sensor in the three-panel color television camera device. FIGS. 3A to 3I are diagrams for explaining the operation of the color television camera device. FIG. 3A shows the signal spectrum of each image pickup output signal from each CCD image sensor, and FIG. FIG. 3B shows a signal spectrum of a luminance signal formed by a matrix circuit of a color encoder constituting the flat panel color television camera device.
FIG. 3C shows a signal spectrum of a modulation output by the modulation circuit of the color encoder, and FIG. 3C shows an interpolation filter characteristic of an interpolation processing unit provided in the color encoder.
FIG. 3D shows the signal spectrum of the interpolation output by the interpolation processing unit shown in FIG. 3E, and FIG. 3F shows the signal spectrum of the composite video signal formed by the color encoder. FIG. 3G shows the filter characteristics of the digital low-pass filter provided on the camera adapter mounted on the camera body, and FIG. 3H shows the signal spectrum of the filter output of the digital low-pass filter, and the composite video signal output from the camera adapter. 3 is shown in FIG. FIG. 4 is a block diagram showing a configuration of a signal processing unit constituting the three-panel color television camera device. FIG. 5 is a block diagram showing a configuration of a color encoder constituting the three-panel color television camera device. FIGS. 6, 7, and 8 are block diagrams showing the configurations of various adapter devices mounted on the three-panel color television camera device, respectively. (4R), (4G), (4B) ... CCD image sensor (7R), (7G), (7B) ... A / D converter (8) ... Signal processing unit (9R), (9G), (9B) Three primary color data output terminals (9CS) Video data output terminals (10) Color encoders (40), (50), (60) Adapter devices (45), (55), (65) ) ... P / S converter

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04N 5/225 H04N 9/00-9/11 H04N 9/64-9/78 H04N 11/00-11 / twenty two

Claims (5)

(57) [Claims] An A / D converter for converting a three primary color signal output from a solid-state imaging device into a digital signal, and a signal processor for forming a digital composite video signal from the digital three primary color signals obtained by the A / D converter A first output terminal for outputting the digital three primary color signals obtained by the A / D conversion unit to the outside, a second output terminal for outputting the digital composite video signal obtained by the signal processing unit to the outside, A P / S converter that converts the digital three primary color signals output from the A / D converter via the first output terminal from parallel data to serial data, and a serial device obtained by the P / S converter. A color television camera device comprising: an output terminal for outputting data to the outside. 2. The color device according to claim 1, further comprising an adapter device provided with the P / S converter and an output terminal for outputting serial data obtained by the P / S converter to the outside. Television camera device. 3. An A / D converter for converting three primary color signals output from a solid-state imaging device into a digital signal, and a signal processor for forming a digital composite video signal from the digital three primary color signals obtained by the A / D converter. A first output terminal for outputting the digital three primary color signals obtained by the A / D conversion unit to the outside, a second output terminal for outputting the digital composite video signal obtained by the signal processing unit to the outside, A P / S converter for converting the digital composite video signal output from the signal processing unit via the second output terminal from parallel data to serial data; and serial data obtained by the P / S converter. And an output terminal for outputting to the outside. 4. The color system according to claim 3, further comprising an adapter device provided with the P / S converter and an output terminal for outputting serial data obtained by the P / S converter to the outside. Television camera device. 5. An A / D converter for converting three primary color signals output from a solid-state image sensor into a digital signal, and a signal processor for forming a digital composite video signal from the digital three primary color signals obtained by the A / D converter. A P / S converter for selectively converting the digital three primary color signals obtained by the A / D conversion unit and the digital composite video signal obtained by the signal processing circuit from parallel data to serial data; And an output terminal for outputting serial data obtained by the S converter to the outside.