WO2006009067A1 - ビデオ信号切替装置、信号切替装置及びdj機器 - Google Patents
ビデオ信号切替装置、信号切替装置及びdj機器 Download PDFInfo
- Publication number
- WO2006009067A1 WO2006009067A1 PCT/JP2005/013038 JP2005013038W WO2006009067A1 WO 2006009067 A1 WO2006009067 A1 WO 2006009067A1 JP 2005013038 W JP2005013038 W JP 2005013038W WO 2006009067 A1 WO2006009067 A1 WO 2006009067A1
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- video signal
- switching
- video
- signal
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- 230000005236 sound signal Effects 0.000 claims description 52
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 241001050985 Disco Species 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
Definitions
- the present invention relates to a signal switching device that switches and outputs a plurality of video signals.
- VJ Video Jockey
- Patent Document 1 Japanese Patent Laid-Open No. 8-195068
- An object of the present invention is to provide a video signal switching device, a signal switching device, and a DJ device that can switch and synchronize both music and video by the operation of one editor. .
- the video signal switching device includes a first video input unit that receives an input of the first video signal from the first playback device, and a second video signal from the second playback device. One of the first video signal and the second video signal based on the switching control signal, the second video input unit receiving the input of the video signal, the switching signal input unit receiving the input of the switching control signal, and the switching control signal. And a video switching output unit for selecting and outputting.
- the video signal switching device described above receives the input of the first video signal and the second video signal from a playback device such as a DVD playback device, for example, and switches and outputs them.
- a switching control signal input from an external force can be used for switching, and one of the first video signal and the second video signal is selected and output based on the switching control signal. Therefore, two different video signals can be switched and output by inputting an arbitrary switching control signal.
- One aspect of the video signal switching device further includes a video signal selection operation unit for selecting a shift between the first video signal and the second video signal.
- the video switching output unit outputs the video signal selected by the operation.
- one of the first and second video signals can be selected and output according to the operation on the video signal selection operation unit. it can. Therefore, for example, an editor such as a DJ can switch and output a video signal by a manual operation.
- a video signal selection operation unit for selecting whether the first video signal and the second video signal are! / Or not, and the first video signal switching device.
- a mode switching operation unit that selects a switching mode between the video signal and the second video signal, and the video switching output unit has an automatic switching mode selected by the operation of the mode switching operation unit. The video signal is selected based on the switching control signal, and when the manual switching mode is selected by operation of the mode switching operation unit, the video signal selection operation unit is selected. The other video signal is output.
- an editor such as a DJ can operate the mode switching operation unit to select a switching mode between the automatic switching mode and the manual switching mode.
- the video signal is switched and output based on the automatic switching signal input from the outside.
- an editor or the like can switch and output one of the first video signal and the second video signal manually by operating the video signal selection operation section. it can.
- the video switching output unit may be configured such that when the video signal selection operation unit is operated during the selection of the automatic switching mode, After outputting the video signal, the processing in the automatic switching mode is continued.
- the other of the video signal selection operation unit in a state where one video signal is selected by the operation of the video signal selection operation unit, the other of the video signal selection operation unit is operated by the operation of the video signal selection operation unit.
- the video switching output unit selects the other video signal only during the selection operation of the other video signal, and after the other video signal selection operation is finished, the one video signal is output. Continue to select the video signal.
- a control signal output state setting unit for setting the output state of the switching control signal to either valid or invalid, and the output state is valid
- an editor or the like can operate the control signal output state setting unit to supply the switching control signal to an external playback device. Therefore, by controlling the switching output of the video signal based on the switching control signal input to the video signal switching device, and supplying the same switching control signal to the external playback device, the external playback device It becomes possible to control the switching output of the signal in synchronization with each other.
- a DJ device including the above-described video signal switching device and an operation panel can be configured.
- the video signal selection operation unit is provided on the operation panel.
- a DJ device including the above-described video signal switching device and an operation panel can be configured.
- the video signal selection operation unit and the mode switching operation unit are Provided on the operation panel.
- the signal switching device is input from the first reproducing device at a mixing ratio according to the position of the operation element provided to be movable by manual operation and the operation element.
- the first audio signal and the second playback device power The audio signal output section that mixes and outputs the second audio signal that is input and the first playback device power
- the first video signal input that receives the input of the first video signal 1 video input unit, 2nd playback device power 2nd video input unit that receives input of 2nd video signal, and 1st video signal and 2nd video signal according to the position of the operation element
- a switching control signal generating unit that generates a switching control signal for selecting one of the video signals, and selecting one of the first video signal and the second video signal based on the switching control signal.
- a video switching output unit for outputting.
- an editor such as a DJ moves the operating element to mix the first audio signal and the second audio signal at a mixing ratio corresponding to the position of the operating element. Can be output. Also, one of the first and second video signals can be selected and output based on the position of the same operator. Therefore, by operating one operator, both the audio signal and the video signal can be switched and output.
- the operating element is a single operating element that is movably provided between a first end and a second end
- the switching control signal generation unit includes: The first video signal is selected when the operating element is located at the first end, and the second video signal is selected when the operating element is located at the second end.
- the operation element is configured as a single operation element provided to be movable between the first end and the second end.
- the first end corresponds to the first playback device
- the second end corresponds to the second playback device.
- the first video signal is selected when the operating element is positioned at the first end
- the second video signal is selected when the operating element is positioned at the second end.
- the operation element includes a first operation element corresponding to the first reproduction apparatus and a second operation element corresponding to the second reproduction apparatus.
- the switching control signal generation unit includes the first video signal and the second video signal based on the position of the first operation element and the position of the second operation element. Select one of the following.
- a first operating element for selecting the first reproducing device and a second operating element for selecting the second reproducing device are provided separately. Therefore, one of the first video signal and the second video signal is selected based on the position of the first operation element and the position of the second operation element.
- FIG. 1 is a block diagram showing a schematic configuration of a signal switching system including a video switch according to an embodiment of the present invention.
- FIG.2 An example of the appearance of the video switcher operation panel is shown.
- FIG. 3 is a diagram for explaining the operation of the slide volume of the mixer.
- FIG. 5 is a block diagram showing the internal configuration of the video switcher.
- FIG. 1 is a block diagram showing a schematic configuration of a signal switching system including a video switch according to an embodiment of the present invention.
- the signal switching system includes a video switcher 10, a player (A) 70a, a player 70b, and a mixer 50.
- the players 70a and 70b are video and audio signal playback devices, and for example, a DVD player can be used.
- the mixer 50 mixes the audio signals AUa and A Ub supplied from the players 70a and 70b, and generates and outputs an output audio signal AUout.
- the output audio signal AUout is supplied to a speaker (not shown) via an amplifier (not shown) and outputted as sound.
- the mixer 50 includes a slide volume 52 that is operated by a DJ, VJ, or the like (hereinafter simply referred to as an “editor”). By operating the slide volume 52, the mixing ratio of the audio signals AUa and AUb is determined. In other words, by operating the editor's power S slide volume 52, either one of the audio signals AUa and AUb, or an output audio signal AUout in which both of them are mixed is output during switching.
- the mixer 50 supplies fader start signals STa and STb and cue-back signals CUa and CUb to the video switcher 10 as switching control signals.
- the slide volume 52, fader start signals STa and STb, and cue back signals CUa and CUb will be described in detail later.
- the video switcher 10 is a device that switches and outputs the video signals supplied from the players 70a and 70b based on the switching control signal supplied from the mixer 50. Specifically, the video signal Va is supplied from the player 70a to the video switcher 10, and the video signal Vb is supplied from the player 70b.
- Video signals Va and Vb can be in the form of, for example, S-video (Y, C) signals, composite video signals, component video (Y, CbZPb, CrZPr) signals, and the like.
- the video switcher 10 supplies the fader start signal STa and the cueback signal CUa supplied from the mixer 50 to the player 70a, and the fader start signal STb and the cueback signal supplied from the mixer 50. Supply CUb to player 70b.
- the video switcher 10 can also stop the output of the fader start signals STa and STb and the cueback signals CUa and CUb, as will be described later, depending on internal settings.
- the video switcher 10 generates a reference video synchronization signal by an internal synchronization signal generation unit, supplies the reference video synchronization signal to the player 70a as the reference video synchronization signal SyncA, and supplies the reference video synchronization signal SyncB to the player 70b. .
- the players 70a and 70b supply video signals Va and Vb, which are synchronized with each other based on the same reference video synchronization signal, to the video switcher 10.
- the video switcher 10 can prevent image disturbance due to a shift in the synchronization signal when the video signals Va and Vb are switched.
- FIG. 2 shows an example of the appearance of the operation panel 10p of the video switcher 10.
- the video switch functions as a DJ device or VJ device (hereinafter referred to as “DJ device”), and various operations used by the editor when switching between video and audio signals. Is provided on the operation panel 10p.
- the operation panel 10p is provided with audio switching control switches 12a and 12b, video output switching switches 13a and 13b, a switching mode setting switch 14, and a power switch 15.
- the video output switching switches 13a and 13b and the switching mode setting switch 14 are preferably arranged close enough to be operated by the editor with one hand.
- the audio switching control switches 12a and 12b are switches for setting whether to supply the fader start signals STa and STb and the cueback signals CUa and CUb input from the mixer 50 to the respective players 70a and 70b.
- the audio switching control switch 12a for the player 70a and the audio switching control switch 12b for the player 70b are provided separately. Note that the audio switching control switches 12a and 12b correspond to a control signal output state setting unit that indicates whether or not the switching control signal is output to an external device.
- the switching mode setting switch 14 is a switch for setting a video signal switching output mode by the video switcher 10.
- the video switcher 10 switches the switching control signal supplied from the mixer 50, i.e., the feeder start signals STa, STb, and Z or the cueback signal.
- the video signals Va and Vb are switched based on CUa and CUb and output as the output video signal Vout.
- the switching mode setting switch 14 when the switching mode setting switch 14 is set to the manual switching mode, the video switcher 10 switches the video signals Va and Vb according to the operation of the video output switching switches 13a and 13b by the editor. Output as video signal Vout.
- the switching mode setting switch 14 corresponds to the mode switching operation unit in the present invention.
- the video output switching switches 13a and 13b are operated to select a video signal to be output as the output video signal Vout when the video switcher 10 is operating in the manual switching mode. That is, when the video switcher 10 is set to the manual switching mode by operating the switching mode setting switch 14, the video signal Va from the player 70a is output as the output video signal when the editor turns on the video output switching switch 1 3a. When the editor turns on the video output switching switch 13b, the video signal Vb from the player 70b is output as the output video signal Vout.
- the video output switching switches 13a and 13b are basically configured so that they can be selected alternatively. After one of the video output switching switches 13a and 13b is pressed to turn it on, When is released, the other is turned off.
- the video output switching switches 13a and 13b correspond to the video signal selection operation unit in the present invention.
- the mixer 50 is operated by an editor to switch between audio signals and video signals output from the players 70a and 70b. Specifically, the editor operates a slide volume 52 provided in the mixer 50.
- FIG. 3 schematically shows an operation example of the slide volume 52.
- the slide volume 52 is configured such that the position of the operation element (operation knob) 52x can be moved between an A end 52a which is one end and a B end 52b which is the other end. .
- the slide volume 52 has a function of generating a fader start signal ST and a cue back signal CU as switching control signals.
- FIG. 3 (a) consider a case where the operator 52x moves from the A end 52a to the B end 52b. While the control 52x is positioned at the A end 52a, only the audio signal AUa is output as the output audio signal AUout. The Here, when the editor moves the operation element 52x and the operation element 52x moves away from the A end 52a, the mixer 50 outputs a fader start signal STb.
- the fader start signal STb is a signal for instructing the player 70b to start playback. Therefore, the player 70b that receives the fader start signal STb starts to reproduce the audio signal AUb.
- the mixer 50 outputs a cueback signal CUa.
- the cue back signal CUa is an instruction signal for setting the player 70a to the playback standby state. Therefore, when the player 70a receives the cueback signal CUa, the player 70a stops playback and performs a process such as moving the playback position to the playback start address, and enters a playback standby state.
- the mixer 50 outputs a fader start signal STa.
- the fader start signal STa is a signal for instructing the player 70a to start playback. Therefore, the player 70a that has received the fader start signal STa starts playing the audio signal AUa.
- the mixer 50 outputs the cueback signal CUb.
- the cue-back signal CUb is an instruction signal for setting the player 70b to a playback standby state. Therefore, when the player 70b receives the cueback signal CUb, the player stops the reproduction and enters the reproduction standby state.
- the slide volume 52 has a function of defining the mixing ratio of the audio signals AUa and AUb input to the mixer 50.
- the relationship between the position of the operation element 52x in the slide volume 52 and the mixing ratio of the audio signals AUa and AUb is shown in the graph of FIG.
- the horizontal axis indicates the position of the operation element 52x in the slide volume 52
- the vertical axis indicates the level of the audio signals AUa and AUb output as the output audio signal AUout output from the mixer 50.
- FIG. 5 shows the internal configuration of the video switcher 10.
- the audio signals AUa and AUb shown in FIG. 1 are omitted! /.
- the video switcher 10 switches the video signals Va and Vb output from the players 70a and 70b based on the fader start signal ST or the cueback signal CU output from the mixer 50. I do.
- the video switch 10 includes an MPU 20, a signal selector 22, an amplifier 24, and a synchronization signal generator 30. Further, selection output signals from the respective switches provided on the operation panel 10p described above are input to the MCU 20.
- the video signal Va from the player 70a and the video signal Vb from the player 70b are input to the signal selector 22 and the synchronization signal generation unit 30, respectively.
- the synchronization signal generation unit 30 includes an oscillator and the like, and outputs reference video synchronization signals SyncA and SyncB synchronized with each other.
- the reference video sync signals SyncA and SyncB are input to the players 70a and 70b, respectively.
- the player 70a generates a video signal Va based on the inputted reference video synchronization signal SyncA and inputs it to the video switcher 10.
- the player 70b generates a video signal Vb based on the input reference video synchronization signal SyncB and inputs it to the video switcher 10.
- the video signals Va and Vb input to the video switcher 10 are in phase with each other.
- the signal selector 22 selects one of the video signals Va and Vb based on the control signal S5 supplied from the MPU 20 and outputs the selected video signal Va to the amplifier 24 as an output video signal Vout.
- the output amplifier 24 functions as an output buffer and outputs the output video signal Vout to the outside of the video switcher 10.
- the fader start signal STa and the cueback signal CUa input from the mixer 50 are input to the MPU 20 and output to the outside of the video switcher 10 via the switches SW1 and SW2, respectively, and input to the player 70a. Is done. Switching between the switches SW1 and SW2 is performed according to the selection state of the audio switching control switch 12a shown in FIG. That is, the MPU 20 supplies the control signals S7a and S8a to the switches SW1 and SW2, respectively, based on the signal S3a indicating the selection state of the audio switching control switch 12a. Specifically, when the audio switching control switch 12a is on, the switches SW1 and SW2 are turned on by the control signals S7a and S8a.
- the feeder start signal STa and the cue back signal CUa output from the mixer 50 are supplied to the player 70a.
- the switches SW1 and SW2 are turned off by the control signals S7a and S8a. Therefore, the fader start signal STa and the cueback signal CUa output from the mixer 50 are not supplied to the player 70a!
- fader start signal STb and cueback signal CUb input from mixer 50 are input to MPU 20 and output to the outside of video switcher 10 via switches SW3 and SW4, respectively. Is input to the player 70b.
- the switches SW3 and SW4 are switched in accordance with the selection state of the audio switching control switch 12b shown in FIG. That is, the MPU 20 supplies the control signals S7b and S8b to the switches SW3 and SW4 based on the signal S3b indicating the selection state of the audio switching control switch 12b, respectively. Specifically, when the audio switching control switch 12b is on, the switches SW3 and SW4 are turned on by the control signals S7b and S8b.
- the fader start signal STb and the cue back signal CUb output from the mixer 50 are supplied to the player 70b.
- the switches SW3 and SW4 are turned off by the control signals S7b and S8b. Therefore, the fader start signal STb and the cueback signal CUb output from the mixer 50 are not supplied to the player 70b.
- the selection by the signal selector 22 is performed based on the switching mode setting switch 14 and the video output switching switches 13a and 13b shown in FIG. Specifically, when the switching mode setting switch 14 is set to the automatic switching mode, a signal S2 indicating that is supplied to the MPU 20.
- the MPU 20 generates the control signal S5 based on the fader start signals STa, ST and Z or the cueback signals CUa and CUb supplied from the mixer 50, and controls switching by the signal selector 22.
- Feeder start signal that functions as a playback start signal ST identifies the side that is selected by switching ST
- cueback signal that functions as a playback standby signal identifies the side that is not selected by switching CU. It is possible to generate S5.
- the signal selector 22 is switched according to the operation of the slide volume 52 of the mixer 50 by the editor.
- both the audio switching control switches SW12a and 12b are set to the on state, the output audio signal AUout output from the mixer 50 and the output video signal Vout output from the video switch 10 are synchronized.
- the output audio signal AUout and the output video signal Vout are switched to the audio signal AUa and the video signal Va from the player 70a at the same timing, and then the audio signal AUb and the video signal Vb from the player 70b at the same timing. Can be switched to.
- the MPU 20 can also generate the control signal S5 for switching control of the signal selector 22 at the timing of either the fader start signal ST or the cueback signal CU.
- the fader start signal ST and the cue back signal CU correspond to the switching control signal in the present invention.
- the switching mode setting switch 14 When at least one of the audio switching control switches 12a and 12b is set to the OFF state and the switching mode setting switch 14 is set to the automatic switching mode, it is set to the OFF state! /
- the player's audio signal switching is a video signal Does not synchronize with the switch. However, even in this case, the switching of the video signal is automatically executed according to the operation of the slide volume 52 of the mixer 50 by the editor.
- the MP U 20 when the switching mode setting switch 14 is set to the manual switching mode, the MP U 20 generates the control signal S5 according to the operation state of the video output switching switches 13a and 13b, and the signal selector 22 To control. That is, when the editor presses the video output switching switch 13a, the signal selector 22 selects the video signal Va from the player 70a, and when the editor presses the video output switching switch 13b, the signal selector 22 starts from the player 70b. Select the video signal Vb. Thus, the editor can arbitrarily determine the output video signal Vout regardless of the audio signal output from the mixer 50.
- the switching mode setting switch 14 When the switching mode setting switch 14 is set to the manual switching mode and the audio switching control switches 12a and 12b are set to the on state, the output video signal Vout is output by the editor.
- the output audio signal AUout is switched in accordance with the operation of the slide volume 52 by the editor, according to the operation of the switching switches 13a and 13b. That is, the editor can arbitrarily switch and control the output video signal Vout and the output audio signal AUout.
- the editor can easily control the switching between the video signal and the audio signal in various forms.
- the video switcher 10 if the automatic switching mode is selected and the audio switching control switches 12a and 12b are turned on, the switching of the output video signal and the output audio signal can be synchronized, and the editor Only the operation of the slide volume 52 of the mixer 50 is required. Also, if the audio switching control switches 12a and 12b are turned on and the manual switching mode is selected, the switching of the output audio signal is controlled by the operation of the mixer 50, and the switching of the output video signal is performed by the video switcher 10 The video output switching switches 13a and 13b can be controlled.
- the video video switcher 10 can be operated only to switch the output video signal.
- These various controls can be realized by operating only a few switches of the mixer and the switcher, and can be easily executed by one editor. Therefore, music and video can be provided in various ways based on the editor's intention.
- the video output switching switches 13a and 13b are selective, and basically, when one is pressed and turned on, the other is turned off.
- the video signal Vb can be temporarily selected and output as an output video signal while the video signal Va is selected.
- the output video signal returns to Va at the same time when the video output switching switch 13b is released.
- the output power of the output video signal Vout is switched based on the fader start signal ST and cueback signal CU as switching control signals from the mixer 50. If the video output switching switch 13a or 13b is pressed during this period, it may be activated and thereafter the automatic switching mode operation may be continued. For example, if the video output selector switch 13b is pressed while the video signal Va is output during the automatic switching mode, the video signal Vb is output, and then the fader start signal ST is input from the mixer 50. Control to automatically output the video signal Va.
- the slide volume 52 of the mixer 50 is configured to select and switch between the players 70a and 70b by the single operator 52x as shown in FIG.
- the application of the present invention is not limited to this.
- a first volume unit 50c having a first operator 52c corresponding to the player 70a and a second volume unit 50d having a second operator 52d corresponding to the player 70b.
- the slide volume 52 may be configured as described above.
- the mixing ratio of the audio signals AUa and AUb is It can be determined by the position of the crops 52c and 52d, for example the ratio of the distances dl and d2 in FIG.
- the video signals Va and Vb are also switched based on the positions of the controls 52c and 52d. For example, when the distance dl is longer, the video signal Va is selected, and when the distance d2 is longer, the video signal is selected. Vb can be selected. Also, the video signal Va or Vb can be selected when each of the controls 52c or 52d exceeds the predetermined position P1 or when the following occurs. Note that the method of selecting one of the video signals Va and Vb based on the positions of the operators 52c and 52d is not limited to this example.
- the present invention can be used for an apparatus for switching and outputting a plurality of video signals, such as V, a so-called video switcher, and a video signal switching apparatus.
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JP6348676B1 (ja) * | 2018-01-05 | 2018-06-27 | イメージニクス株式会社 | スイッチャ |
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JP2002262179A (ja) * | 2001-02-28 | 2002-09-13 | Yamaha Corp | ビデオミキサー装置 |
JP2003114667A (ja) * | 2001-10-03 | 2003-04-18 | Roland Corp | 映像表示装置 |
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JP2002262179A (ja) * | 2001-02-28 | 2002-09-13 | Yamaha Corp | ビデオミキサー装置 |
JP2003114667A (ja) * | 2001-10-03 | 2003-04-18 | Roland Corp | 映像表示装置 |
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JP6348676B1 (ja) * | 2018-01-05 | 2018-06-27 | イメージニクス株式会社 | スイッチャ |
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