JP3707098B2 - Video signal processing device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a video signal processing apparatus, and is applied to, for example, video equipment forming a studio system to add identification data to a video signal output from the video equipment and to grasp a device number based on the identification data. This simplifies the confirmation work between the connected devices.
[0002]
[Prior art]
Conventionally, in a television camera, a camera control unit and a camera head unit are formed so as to be connected by a cable, and a video signal captured by the camera head unit is sent to a switcher or the like via the camera control unit. In addition, a return image output from a switcher or the like is sent to the camera head unit via the camera control unit, so that a photographer can photograph a desired subject while checking an on-air image as necessary.
[0003]
Furthermore, in the conventional television camera, in addition to the transmission of the video signal as described above, it is formed so as to be able to send and receive a voice signal for a call (that is, a voice signal for an income). A desired subject can be photographed while communicating with an operating operator.
[0004]
[Problems to be solved by the invention]
By the way, when actually operating a switcher, etc., check the device number of the television camera and operate the corresponding input channel, so that the correspondence between the input channel of the switcher and the device number of each television camera The relationship needs to be fully understood.
[0005]
However, in reality, in a studio facility that uses this type of television camera, multiple television cameras are used, so that multiple cables are confused, and any television camera is input to any channel. In many cases, it is not possible to grasp easily.
[0006]
For this reason, in conventional broadcasting facilities, the input channel and television camera can be disconnected by disconnecting the cable or turning off the power on the television camera side while talking between the cameraman and the switcher operator through the intercom line. There is a problem that it is necessary to confirm the device number of the device, and it is necessary to perform complicated confirmation work after all.
[0007]
The present invention has been made in view of the above points, and an object of the present invention is to propose a video signal processing apparatus capable of simplifying complicated confirmation work between connected video devices.
[0008]
[Means for Solving the Problems]
In order to solve such a problem, the present invention includes code generation means for generating identification data representing a device number unique to each device, and the identification data generated by the code generation means during the blanking period of the video signal to be transmitted. A video signal processing apparatus that inputs a plurality of video signals supplied from a plurality of video devices that are inserted to send out the video signals to each signal processing system, wherein each of the video signals supplied from the plurality of video devices Based on the code detection means for detecting the identification data inserted in the blanking period, and the detection output by the code detection means, the plurality of video devices and the plurality of signal processing systems correspond to each other. Signal selection means for switching and outputting a plurality of video signals supplied from the video equipment.
[0009]
[Action]
In the video signal processing apparatus according to the present invention, the signal selection means uses the detection output from the code detection means for detecting the identification data inserted in the blanking period of each video signal supplied from a plurality of video equipments. The plurality of video signals supplied from the plurality of video devices are switched and output so that the plurality of video devices correspond to the plurality of signal processing systems.
[0012]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
[0013]
FIG. 2 is a block diagram showing a studio system according to an embodiment of the present invention. The studio system 1 captures a desired subject by a television camera formed by camera head units (CHU) 2A to 2F and camera control units (CCU) 3A to 3F, respectively, and a digital video signal DVA that is a result of the imaging. ˜DVF is input to the adjustment chamber 4 in the prescribed serial transmission format.
[0014]
That is, each of the camera head units 2A to 2F is controlled by the camera control units 3A to 3F, respectively, to pick up an image of a desired subject under specified conditions, and adjusts the digital video signals DVA to DVF via the camera control units 3A to 3F. The digital video signal of the return image is input through the camera control units 3A to 3F. Accordingly, the camera control units 3A to 3F execute such control of the camera head units 2A to 2F according to the control data DCA to DCF transmitted from the adjustment chamber 4.
[0015]
The adjustment chamber 4 receives the digital video signals DVA to DVF from the switch box (SWBOX) 5 and outputs the digital video signals DVA to DVF to the waveform monitors 6A to 6F arranged in order of the device numbers from the switch box 5. Thus, the imaging results of the camera head units 2A to 2F can be monitored via the waveform monitors 6A to 6F.
[0016]
The adjustment chamber 4 inputs the digital video signals DVA to DVF from the switch box 5 to the video monitors 7A to 7F arranged in the order of the device numbers corresponding to the waveform monitors 6A to 6F. The operation status of each television camera can be confirmed by 7F. Further, the adjustment chamber 4 selectively outputs the digital video signals DVA to DVF to the waveform monitor 8 and the video monitor 9 in response to the operation of the specified operator, whereby the waveform monitor 8 and the video monitor 9 respectively master the digital video signals DVA to DVF. The image can be checked.
[0017]
The remote control panels (RCP) 10A to 10F are operation panels on which the controls of the camera command network unit (CNU) 11 are arranged. Similarly, the remote control panels (ACP) 10A to 10F are arranged in the order of device numbers corresponding to the waveform monitors 6A to 6F. Has been made. The camera command network unit 11 transmits and receives control data DCA to DCF to and from the camera control units 3A to 3F in response to operations of the remote control panels 10A to 10F. As a result, in the studio system 1, the operations of the television cameras are controlled by operating the operation elements arranged on the remote control panels 10A to 10F.
[0018]
In this way, the switch box 5 for inputting / outputting the digital video signals DVA to DVF and the control data DCA to DCF and the camera command network unit 11 are connected to the camera control units 3A to 3F as shown in FIG.
[0019]
That is, the camera control units 3A to 3F output the imaging results from the camera control unit bodies 12A to 12F in the form of digital video signals DVA to DVF, and input the control data DCA to DCF to the camera control unit bodies 12A to 12F. Then, the camera head units 2A to 2F are controlled.
[0020]
The code generation circuits 13A to 13F are device codes SDA to SDF specific to each television camera that represent the device number of each television camera in accordance with the setting of a digital switch arranged on the operation panel of each camera control unit 3A to 3F. Is generated. The selection circuits 14A to 14F switch the contacts at a predetermined timing in the blanking period of the digital video signals DVA to DVF, and output the device codes SDA to SDF through the blanking period of the digital video signals DVA to DVF.
[0021]
As a result, in the studio system 1, the apparatus codes SDA to SDF of each television camera are set in the digital video signals DVA to DVF transmitted from each television camera.
[0022]
On the other hand, the switch box 5 inputs these digital video signals DVA to DVF to the switch box main body 16 via the selector 15. The code detection circuit 17 detects the device codes SDA to SDF from the digital video signals DVA to DVF, and outputs a control signal SW1 according to the detection result to switch the contact of the selector 15.
[0023]
This switching of the contacts is performed by switching the contacts of the selector 15 so that the device codes SDA to SDF of the digital video signals DVA to DVF correspond to the device numbers assigned to the waveform monitors 6A to 6F. ing. Thereby, in this studio system 1, after setting a series of apparatus numbers to the camera control units 3A to 3F, the apparatus numbers can be grasped in the adjustment room 4 simply by connecting the camera control units 3A to 3F to the adjustment room 4. Thus, the complicated connection confirmation work can be omitted.
[0024]
On the other hand, the camera command network unit 11 has a camera command network unit main body 19 that transmits and receives control data DCA to DCF to and from the camera control units 3A to 3F in response to operations of the remote control panels 10A to 10F. A selector 20 is arranged between the camera command network unit main body 19 and the camera control units 3A to 3F.
[0025]
The selector 20 switches contacts in response to the control signal SW2 output from the code detection circuit 17, and in this embodiment, control data DCA to DCF sent in response to the operation of each remote control panel 10A to 10F. Is switched with reference to the device codes SDA to SDF of the digital video signals DVA to DVF so that they are input to the camera control units 3A to 3F having device numbers that match the device numbers assigned to the remote control panels 10A to 10F. It is made to be able to.
[0026]
Thus, in this embodiment, the control data DCA to DCF are also formed so that the device number can be grasped and adjusted in the adjustment chamber 4 simply by connecting the camera control units 3A to 3F to the adjustment chamber 4. It is made so that it is possible to omit a simple connection confirmation work.
[0027]
In the above configuration, the digital video signals DVA to DVF generated by the camera head units 2A to 2F are transmitted to the devices of the television cameras during the blanking period in the selection circuits 14A to 14F of the camera control units 3A to 3F. After the device codes SDA to SDF representing the numbers are inserted, they are input to the switch box 5 of the adjustment chamber 4.
[0028]
In the switch box 5, the device codes SDA to SDF are detected in the code detection circuit 17 for the digital video signals DVA to DVF, and the device numbers of the camera control units 3 A to 3 F are detected based on the device codes SDA to SDF. . Thereby, the contact of the selector 15 is switched based on the device code detection result, and the digital video signals DVA to DVF are output to the waveform monitors 6A to 6F and video monitors 7A to 7F of the corresponding device numbers.
[0029]
On the other hand, control data DCA to DCF generated by the camera command network unit main body 19 of the camera command network unit 11 are output to the camera control units 3A to 3F via the selector 20. At this time, the control data DCA to DCF are output to the camera control units 3A to 3F having the corresponding device numbers by switching the contacts of the selector 20 based on the device codes SDA to SDF detected by the code detection circuit 17. .
[0030]
As a result, troublesome confirmation work can be omitted for the control data DCA to DCF, and the remote control panels 10A to 10F can be operated to remotely control the television camera of the corresponding device number.
[0031]
According to the above configuration, the device codes SDA to SDF representing the device numbers of the camera control units 3A to 3F are inserted during the blanking period of the digital video signals DVA to DVF, and the switch box is selected according to the device codes SDA to SDF. By switching the input on the 5 side, after setting a series of device numbers for the camera control units 3A to 3F, simply connecting the camera control units 3A to 3F to the adjustment chamber 4 allows the adjustment chamber 4 to grasp the device number. Therefore, complicated connection confirmation work can be omitted.
[0032]
Further, the control data DCA to DCF can be switched based on the device code detection result, so that complicated confirmation work can be omitted, and the remote control panels 10A to 10F are operated to operate the television of the corresponding device number. The camera can be controlled remotely.
[0033]
In the above-described embodiment, the case where the digital video signal and the control data are transmitted / received has been described. However, the present invention is not limited to this and can be widely applied to the case where only the digital video signal is transmitted / received.
[0034]
In the above-described embodiment, the case where the digital video signal and the control data are switched on the camera control unit side of the switch box and the camera command network unit has been described. However, the present invention is not limited thereto, and the monitor side and the remote control panel side. The connection may be switched with.
[0035]
Furthermore, in the above-described embodiment, the case where the device code is detected and the connection is switched has been described. However, the present invention is not limited to this, and the connection status may be displayed together.
[0036]
In the above-described embodiments, the case where the television camera and the monitor are connected via the switch box has been described. However, the present invention is not limited to this, and the case where the television camera is connected to various video devices. Can be widely applied to an editing system in which a plurality of video tape recorders are connected.
[0037]
【The invention's effect】
As described above, according to the present invention, during the blanking period of the video signal, the video signal is transmitted through the identification data representing the device number, and the input or output of the video signal is switched by detecting this identification data. As a result, it is possible to simplify troublesome confirmation work between connected video devices.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a studio system according to an embodiment of the present invention.
FIG. 2 is a block diagram showing the overall configuration of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Studio system 3A-3F Camera control unit 5 Switch box 6A-6F, 8 Monitor 10A-10F Remote control panel 11 Camera command network unit 13A-13F Code generation circuit 14A-14F Selection circuit 15, 20 Selector 17 Code detection circuit

Claims (1)

A plurality of code generating means for generating identification data each representing a device number unique to the equipment, and transmitting the video signal by inserting the identification data generated by the code generating means during a blanking period of the video signal to be transmitted; A video signal processing apparatus for inputting a plurality of video signals supplied from video equipment to each signal processing system,
Code detecting means for detecting identification data inserted in a blanking period of each video signal supplied from the plurality of video devices;
Based on detection output by the code detection means, signal selection means for switching and outputting a plurality of video signals supplied from the plurality of video equipment so that the plurality of video equipments correspond to the plurality of signal processing systems. When
A video signal processing apparatus comprising:

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