null  User manual
US 20050231642A1
(19) United States
(12) Patent Application Publication (10) Pub. No.: US 2005/0231642 A1
(43) Pub. Date:
Roman et al.
(54) DISC JOCKEY AUDIO/VIDEO MIXER
Oct. 20, 2005
Related US. Application Data
(75) Inventors: Christopher Roman, Wrentham, MA
(US); Brian Shim, Santa Monica, CA
(60)
(Us)
Provisional application No. 60/557,222, ?led on Mar.
29, 2004. Provisional application No. 60/561,590,
?led on Apr. 13, 2004.
Correspondence Address:
BARLOW, JOSEPHS & HOLMES, LTD.
Publication Classi?cation
(51)
(52)
101 DYER STREET
5TH FLOOR
Int. Cl? ................................................... ..H04N 5/222
Us. 01. ......................... ..348/578; 348/515; 348/722
PROVIDENCE, RI 02903 (US)
(57)
(73) Assignee: Numark Industries, LLC, Cumberland,
RI
(21) APPL NO;
11/071,948
(22) Filed:
Mar. 4, 2005
ABSTRACT
An audio/video mixer (10) for disc jockeys includes a
number of video inputs (28, 30, 36, 38), a number of audio
inputs (24, 26), a video output (46, 48), an audio output (42,
44), and controls (100, 200) thereon for selectively mixing
the respective audio and video signals, applying special
effects thereto and routing them through the respective video
and audio outputs.
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Patent Application Publication Oct. 20, 2005 Sheet 1 0f 4
US 2005/0231642 A1
Patent Application Publication Oct. 20, 2005 Sheet 2 0f 4
US 2005/0231642 A1
Patent Application Publication Oct. 20, 2005 Sheet 3 0f 4
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Patent Application Publication Oct. 20, 2005 Sheet 4 0f 4
US 2005/0231642 A1
VIDEO
208
f / 216
\ 206
/
203
K20":
ZOIux
/— 204b
204ux
BUS A
BUS B
/—202
BACKGROUND
VIOEO SOUIKE
CONTROLS
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A
A
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VIDEO INPUTS
FIG. 4
A
Oct. 20, 2005
US 2005/0231642 A1
DISC .IOCKEY AUDIO/VIDEO MIXER
CROSS-REFERENCE TO RELATED
APPLICATION
[0001] This application claims priority to earlier ?led US.
Provisional Application Ser. No. 60/557,222 ?led Mar. 29,
2004, the contents of Which are incorporated herein by
reference.
use to carry out both audio and video mixing in a single unit
Which is not found in the prior art.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] These and other features, aspects, and advantages
of the present invention Will become better understood With
reference to the folloWing description, appended claims, and
accompanying draWings Where:
BACKGROUND OF THE INVENTION
[0002] The present invention relates generally to disc
[0010] FIG. 1 is a perspective vieW of the preferred
embodiment of the present invention;
jockey mixing equipment. In particular, the present inven
[0011]
tion relates to mixers for audio and also for video.
embodiment of the present invention;
[0003]
In the music industry, there is a need for the ability
for a disc jockey to mix both audio and video for a given
performance. Currently, such capability requires that the
disc jockey use separate audio and video mixers. As can be
understood, this becomes cumbersome and expensive.
[0012]
FIG. 2 is a vieW of the rear panel of the preferred
FIG. 3 is a vieW of the control panel of the
preferred embodiment of the present invention; and
[0013] FIG. 4 is a conceptual vieW of the signal process
ing of the preferred embodiment of the present invention.
Moreover, knoWn audio and video mixers are not meant for
operation by disc jockeys and, therefore, are not easily used
during a disc jockey performance. For example, the layout
and control of knoWn separate audio and video mixers do not
have cross-faders and line-faders, Which disc jockeys are
accustomed to. Also, these mixers do not have a layout that
is familiar to disc jockeys.
[0004]
Therefore, there is a need for audio and video
mixing capability in a single piece of equipment that is
rugged, rack mountable With familiar disc jockey controls.
SUMMARY OF THE INVENTION
DESCRIPTION OF THE PREFERRED
EMBODIMENT
[0014] The preferred embodiment of the audio/video
mixer for disc jockeys of the present invention is shoWn
generally in FIG. 1-3 at 10. Brie?y, the mixer 10 has a main
housing 12 having side panels 13, a rear panel 14 and a
control panel 16. The mixer 10 has a variety of input and
output connectors on the rear panel 14. The mixer 10 also
has a variety of controls on the control panel 16 for selec
tively mixing audio and video signals being inputted through
the input connectors on the rear panel 14 and outputting the
resulting mixed signal out the output connectors on the rear
panel 14. Optionally, rack-mounts 15 could be connected to
[0005] The present invention provides in a single piece of
equipment both audio and video mixing. The mixer of the
present invention includes disc-jockey style controls, includ
ing a disc-jockey style cross-fader and line-fader. The mixer
the side panels 13 by a retainer 17, such as a small screW or
bolt, so that the mixer 10 may be mounted Within a nineteen
is rack mountable and rugged, Which is important to disc
inch rack, Which is a standard Within the industry.
jockeys. The mixer also includes features built-in that are
desirable to a disc jockey, such as audio cueing through
headphones and digital video effects for video manipulation
on the ?y.
[0006] The audio/video mixer for disc jockeys of the
present invention has a main housing With a number of video
inputs and a video output. Each video input has a corre
sponding video signal. The mixer also has a number of audio
inputs and an audio output. Each audio input has a corre
sponding audio signal. The mixer also has a video control on
the main housing for selectively mixing any number of the
video signals into a mixed video signal and an audio control
on the main housing for selectively mixing any number of
the audio signals into a mixed audio signal. The mixed video
signal is connected to the video output and the mixed audio
signal is connected to the audio output.
[0007] Accordingly, among the objects of the present
invention are the provision for a device for mixing audio and
visual signals for disc jockey performances; the provision
for a an audio/video mixer that is rugged; the provision for
a audio/video mixer that is easily transported; the provision
for an audio/video mixer that is rack-mountable; and the
provision for an audio/video mixer that is easily used by disc
jockeys.
[0008] In vieW of the foregoing, the mixer of the present
invention is very compact, dedicated, loW-cost and easy-to
[0015] Referring noW to FIG. 2, the rear panel 14 of the
mixer 10 is shoWn. The mixer 10 is shoWn Without the
rack-mounts 15 attached. The rear panel 14 has a micro
phone input 18. The microphone input 18 is preferably a
quarter inch microphone jack that is a standard Within the
industry, but other types of microphone jacks knoWn Within
the art could be used.
[0016] Adjacent to the microphone input 18 is a ?rst
monitor output 20. The ?rst monitor output 20 is connected
to a small video monitor (not shoWn) for the disc jockey to
use during his or her performance to vieW the unaltered
video signal of the ?rst video input described more fully
beloW.
[0017] Above the ?rst monitor output 20 is a second
monitor output 22 that is identically in operation to the ?rst
monitor output 20 With the exception that the second moni
tor output 22 carries the unaltered video signal of the second
video input. The second video input is described more fully
beloW.
[0018]
Adjacent to the ?rst monitor output 20 are left
channel 24a and right channel 24b audio inputs (collectively
referred to as the ?rst audio input 24). Although the ?rst
audio input 24 described and shoWn is for stereo sound,
surround-sound capability could be added easily to the
mixer 10 by incorporating front and rear audio channels.
Oct. 20, 2005
US 2005/0231642 A1
[0019]
Above the ?rst audio input 24 is a similarly con
?gured left channel 26a and right channel 26b audio inputs
(collectively referred to as the second audio input 26). The
second audio input 26 may also be easily con?gured to
handle surround-sound by adding front and rear audio
channels.
[0020] Adjacent to the audio inputs 24, 26 are four video
inputs 28, 30, 32, 34. The ?rst and second video inputs 28,
30 are standard composite video inputs and are typically
used by a disc jockey to feed video from industry or
consumer model video players such as DVD players, VCRs,
or even steaming video from a personal computer. The third
and fourth video inputs 32, 34 are S-Video jacks that are
standard in the industry for connecting S-Video compatible
[0026]
Adjacent to the video outputs 46, 48 is a poWer
connector 50. The poWer connector 50 is a standard 12 volt
DC jack that is standard in the industry, but could be another
type of connector.
[0027] Adjacent to the poWer connector 50 is a poWer
sWitch 52, Which controls the poWer to the mixer 10.
[0028]
Referring noW to FIG. 3, the control panel 16 of
the mixer 10 is shoWn. The mixer 10 is shoWn Without the
rack-mounts 15 attached. The control panel 16 is divided
generally into tWo sets of controls: the audio controls 100
and the video controls 200.
[0029] The audio controls 100 include a microphone fader
102, line fader 104, audio 1/2 fader 106, audio cross-fader
devices, such as camcorders, to the mixer 10. The disc
108, master audio fader 110, cue source control 112, cue
jockey typically uses the third and fourth video inputs 32, 34
blend control 114, headphone volume control 116, and a
to feed video from live camera feeds to augment his or her
headphone output 118.
performance and to produce unique visual effects When
mixed With video form the ?rst and second video inputs 28,
30. These procedures Will be described more fully beloW.
[0021] Adjacent to the video inputs 28, 30, 32, 34 is a third
monitor output 36. The third monitor output 36 is connected
to a small video monitor (not shoWn) for the disc jockey to
use during his or her performance to vieW the unaltered
video signal of the third video input described above.
[0022] Above the third monitor output 36 is a fourth
monitor output 38 that is identically in operation to the third
monitor output 36 With the exception that the fourth monitor
output 38 carries the unaltered video signal of the fourth
video input described above.
[0023] Adjacent to the third and fourth monitor outputs
36, 38 are left 40a and right 40b channel line inputs for audio
(collectively referred to as the audio line input 40). The
audio line input 40 may be connected to a variety of audio
devices such as turntables and CD players to provide the disc
jockey With yet another source of audio to use and manipu
late during his or her performance. In particular, Numark
brand CD players, such as the CDN90, and Numark brand
turntables, such as the CDX or TT-series, are particularly
Well-suited for the disc jockey to use as an additional audio
device connected to the line input 40.
[0024] Adjacent to the line input 40 are tWo sets of audio
42, 44 and video 46, 48 outputs. The ?rst set of audio outputs
42 has a left channel 42a and a right channel 42b. Similarly,
the second set of audio outputs 44 has a left channel 44a and
a right channel 44b also. Like the audio inputs 24, 26, 40, the
audio outputs 42, 44 could also be con?gured With front and
[0030] The faders 102, 104, 106, 110 control the audio
volume of the respective outputs 18, 26, 40, 42, 44. Spe
ci?cally, the microphone fader 102 adjusts the audio level of
the microphone input 18; the line fader 104 adjusts the audio
level of the audio line input 40; the audio 1/2 fader 106
controls the overall level for the ?rst audio input 24 and
second audio input 26; and the master audio fader 110
controls the overall audio level of the ?rst and second audio
outputs 42, 44 of the mixer 10.
[0031]
The audio cross-fader 108 fades audio betWeen the
?rst audio input 24 and the second audio input 26. Preferably
the audio cross-fader 108 is a slidably actuated type control
because this type of control is vieWed as desirable by disc
jockeys. Furthermore, the audio cross-fader 108 should be
positioned so that it slides laterally With respect to the
control panel 16. A laterally sliding type control is also
vieWed as a desirable feature in a mixer 10 by disc jockeys.
Although laterally sliding type actuators are preferred, other
styles of controls Would Work equally effectively and are
Well knoWn in the art.
[0032] Additionally, the audio cross-fader 108 may be
linked to the master video fader 216, Which Will be described
more fully beloW, so that they operate in tandem. This may
be accomplished in many Ways. First, both controls 108, 216
could be positioned in similar tracks right next to each other
so that the disc jockey may operate both controls 108, 216
simultaneously or by further mechanically coupling the tWo
controls 108216 together. Another Way Would be to use a
rear channels to support surround-sound. Both sets of audio
DSP control (not shoWn) to control both of the faders 108,
216 simultaneously. Activating the DSP control Would elec
trically link the tWo controls 108, 216 together.
outputs 42, 44 carry the same mixed audio signal described
more fully beloW. TWo sets of audio outputs 42, 44 are
[0033]
provided to give the disc jockey ?exibility in arranging his
18, 24, 26, 40 to be output through the headphone output 118
or her equipment and in designing his or her performance.
in addition to the master audio outputs 42, 44. The head
phone output 118 is a standard audio jack used in the
industry. The cue blend control 114 fades betWeen the audio
output of the master outputs 42, 44 and the source selected
by the cue source control 112. The headphone volume
control 116 controls the overall volume level being output
[0025]
The ?rst set of video outputs 46 has a composite
video connector 46a and an S-Video connector 46b. Simi
larly, the second set of video outputs 48 has a composite
video connector 48a and an S-Video connector 48b also.
Both the ?rst and second video outputs 46, 48 carry the same
mixed video signal described more fully beloW. The differ
ent types of video outputs 46, 48 are provided as a matter of
convenience for the disc jockey in order to provide him or
her With ?exibility in setting up his or her equipment and in
planning his or her performance.
The cue source control 112 selects an audio input
ted through the headphone output 118.
[0034]
Turning noW to the set of video controls 200, the
video controls 200 are subdivided into a set of source
controls 202, tWo sets of effects controls 204a, 204b, a set
of mode controls 206, and a set of function controls 208. The
Oct. 20, 2005
US 2005/0231642 A1
set of video source controls 202 of the video controls 200 is
the centerpiece of the mixer 10. The video source controls
202 are used by the disc jockey to select the video inputs 28,
sWitches 224a, 224b; invert controls 226a, 226b, still con
trols 228a, 228b; paint controls 230a, 230b; strobe controls
30, 32, 34 that Will ultimately be mixed and outputted
232a, 232b; and mosaic controls 234a, 234b. The ?rst set of
video effects controls 204a applies special effects to video
through the master video outputs 46, 48. FIG. 4 shoWs a
Bus A 201a. The second set of video effects controls 204b
useful conceptual diagram of the signal processing of the
applies special effects to video Bus B 201b. The activation
sWitches 224a, 224b toggles the effects on and off. The
invert controls 226a, 226b creates a negative of the image on
the selected video bus 201a, 201b. The still controls 228a,
228b freeZes the image on the selected video bus 201a,
201b. The paint controls 230a, 230b merges shades of colors
and forms an abstract picture on the selected video bus 201a,
201b. This function is sometimes called “posteriZation”.
There are three levels of intensity that may be cycled
present invention.
[0035] The miXer 10 has tWo video busses, Bus A 201a
and Bus B 201b. The video source controls 202 selectively
assign the video signals of the video inputs 28, 30, 32, 34 to
the desired video bus (Bus A or Bus B) 201a, 201b. The disc
jockey may then apply special effects to the selected video
signal on the video bus using the effects controls 204a, 204b
as desired. The disc jockey may also control hoW the fade,
Wipe and picture-in-picture features operate using the mode
therethrough by activating the controls 230a, 230b repeat
controls 206 and function controls 208.
edly. The strobe controls 232a, 232b create a “stop action”
effect to the selected video bus 201a, 201b. This function
[0036]
The video source controls 202 include the folloW
232a, 232b has three speed settings that may be cycled
ing controls: ?rst video selectors 210a, 210b, second video
selectors 212a, 212b, and background selectors 214a, 214b.
232b. The mosaic controls 234a, 234b break up the image
therethrough by repeatedly activating the control 232a,
The video source controls 202 are divided into tWo sets of
into patterns of shaded colors to form an abstract picture on
controls. Each set is identical to the other With the exception
the selected video bus 201a, 201b. Three siZes of mosaic
that one set effects the Bus A 102a source and the other set
squares may be cycled therethrough by activating the mosaic
controls 234a, 234b repeatedly.
[0041] A joystick 236 is located adjacent to, and above,
effects the Bus B 102b source. Activating the ?rst video
selectors 210a, 210b selects the ?rst video input 28 for the
desired video bus to carry. Activating the second video
selectors 212a, 212b selects the second video input 30 for
the desired video bus to carry. Activating the background
selectors 214a, 214b selects the background color set by the
background select control 240 (described more fully beloW).
Activating the corresponding ?rst video selector 210a, 210b
and corresponding background selector 214a, 214b Will set
the corresponding video bus to carry the video signal of the
third video input 32. Activating the corresponding second
video selector 212a, 212b and corresponding background
selector 214a, 214b Will set the corresponding video bus
201a, 201b to carry the video signal of the fourth video input
34.
[0037] Also included are a master video fader 216, auto
fade control 218, and a fade start control 220.
[0038] The master video fader 216 fades the video of the
master video outputs 34, 36 betWeen the video buses 201a,
201b. Preferably the master video fader 216 is a slidably
actuated type control because this type of control is vieWed
as desirable by disc jockeys. Furthermore, the master video
fader 216 should be positioned so that it slides laterally With
respect to the control panel 16. A laterally sliding type
control is also vieWed as a desirable feature in a miXer 10 by
disc jockeys. Although laterally sliding type actuators are
preferred, other styles of controls Would Work equally effec
tively and are Well knoWn in the art. As described earlier
above, the master video fader 216 may be mechanically or
electronically linked to the audio cross-fader control 108.
[0039] The auto-fade control 218 and fade start control
220 are used to perform Wipes and fades (described more
fully beloW) automatically at the speed selected by the
master video fader 216. The auto-fade control 218 turns the
auto fade function on and off. The fade start control 220
starts the fade as selected by the master video fader 216.
the auto fade control 218. The joystick 236 is used to
position the picture-in-picture WindoW and control the direc
tions of the Wipe and fade effects of the miXer 10. These
functions Will be described more fully beloW.
[0042]
Above the joystick 236 is a master audio output
meter 238. The master audio output meter indicates the
master audio output level as controlled by the master audio
fader 110.
[0043] Also included is a background select control 240.
The background select control 240 selects the background
color to be used for the effects. The colors that are included
are blue, red, magenta, green, yelloW, cyan, White and black.
Although conceivably an in?nite number of colors could be
programmed into the miXer 10, the ones provided for are the
most common and desired among disc jockeys. Activating
the background select control 240 repeatedly cycles through
the available colors.
[0044] To the left of the joystick 238 is a set of mode
controls 206. The mode controls 206 include a key selector
242, Wipe selector 244, miX selector 246, and PIP selector
248. The key selector 242 is used to activate the luma key
and blue key functions (described more fully beloW) during
video miXing. The Wipe selector 244 toggles betWeen tWo
types of Wipes. The ?rst provides a hard edge at the Wipe
boundary, and the second provides a softer edge at the Wipe
boundary. The miX selector 246 selects a smooth fade
betWeen the video sources selected in Bus A201a and Bus
B 201b. The PIP selector 248 superimposes an image from
Bus A 210a over Bus B 201b in a smaller WindoW. This
feature is commonly referred to as “picture-in-picture”. The
style of the picture-in-picture WindoW may be adjusted With
the function controls 208 (described more fully beloW). The
position of the picture-in-picture WindoW may be adjusted
With the joystick 238.
controls 202 are tWo sets of effects controls 204a, 204b. The
[0045] To the right of the joystick 238 is a set of function
controls 208. The function controls 208 include siX function
video effects controls 204a, 204b include activation
keys 250, 252, 254, 256, 258, 260 and a multi-screen key
[0040]
Adjacent to, and on either side of, the video source
Oct. 20, 2005
US 2005/0231642 A1
262, Which augment the mode controls 206 (excepting the
mix selector 240, Which has no associated functions) by
providing different functions, styles and effects to the
selected mode controls 206.
[0046] When the key selector 242 is activated, there are
four active function keys 250, 252, 256, 258. The multi
a plurality of audio inputs located on the main housing, a
plurality of audio signals respectively corresponding to
the plurality of audio inputs;
a video control on the main housing for selectively mixing
the plurality of video signals into a mixed video signal;
screen key 262 is not used in this mode. The ?rst function
key 250 sets the primary source to Bus A201a. The second
function 252 key sets the primary source to Bus B 201b. The
an audio control on the main housing for selectively
fourth function key 256 replaces blue (pantone 293) areas of
a video output connected to the mixed video signal; and
the image With a secondary image, at a level controlled by
the master video fader 216. This special effect is typically
used by neWs broadcasters in superimposing a Weather map
behind a Weatherman. TWo different styles may be cycled
an audio output connected to the mixed audio signal.
2. The mixer of claim 1, further comprising means for
applying a digitiZed video special effect to said mixed video
through by activating the fourth function key 256 repeatedly.
The ?fth function key 258 replaces black areas of the image
With a secondary image and also progresses to replace
lighter shades based on the position of the master video fader
216. TWo different styles may be cycled through by repeat
edly activating the ?fth function key 258,
[0047] When the Wipe selector 244 is activated, each of
the function keys 250, 252, 254, 256, 258, 260 accesses a
different style of Wipe effect. Each function key 250, 252,
254, 256, 258, 260 also has four sub-functions, Which
further modify the style of the Wipe effect. Activating a
particular function key repeatedly cycles through the four
mixing the plurality of audio signals into a mixed audio
signal;
signal.
3. The mixer of claim 1, further comprising:
means for selectively choosing one of said plurality of
video signals to be used as a primary source signal;
means for selectively choosing one of said plurality of
video signals to be used as a secondary source signal;
and
means for super-imposing the secondary source signal
over the primary source signal in a picture-in-picture
WindoW to form the mixed video signal.
4. The mixer of claim 3, further comprising a joystick for
sub-functions.
positioning said picture-in-picture WindoW Within said pri
[0048] When the PIP selector 248 is activated, each of the
function keys 250, 252, 254, 256, 258, 260 accesses a
different picture-in-picture style. The ?rst three function
keys 250, 252, 254 have picture-in-picture WindoWs With
mary source signal.
5. The mixer of claim 1, further comprising:
borders. The border color is set to the color selected by the
means for selectively choosing one of said plurality of
video signals to be used as a ?rst source signal;
background select control. The last three function keys 256,
258, 260 have picture-in-picture WindoWs lacking borders.
means for selectively choosing one of said plurality of
The ?rst and fourth function keys 250, 256 provide a
picture-in-picture WindoW that is approximately one-half of
the image siZe. The second and ?fth function keys 252, 258
provide a picture-in-picture WindoW that is approximately
one-quarter of the image siZe. The third and sixth function
keys 254, 260 provide a picture-in-picture WindoW that is
means for selectively applying a transition video special
effect from said ?rst video signal to said second video
signal and vice versa.
6. The mixer of claim 1, further comprising:
approximately one-sixteenth of the image siZe.
[0049] The multi-screen key 262 can only be used in Wipe
or PIP mode. The multi-screen key 262 Will divide the effect
into 1, 4, or 16 equal and separate effects.
[0050] While there is shoWn and described herein certain
speci?c structure embodying the invention, it Will be mani
fest to those skilled in the art that various modi?cations and
rearrangements of the parts may be made Without departing
from the spirit and scope of the underlying inventive concept
and that the same is not limited to the particular forms herein
shoWn and described except insofar as indicated by the
scope of the appended claims.
video signals to be used as a second source signal; and
means for selectively choosing one of said plurality of
video signals to be used as a primary source signal;
means for selectively choosing one of said plurality of
video signals to be used as a secondary source signal;
and
means for replacing areas of a predetermined color of the
primary source signal With the corresponding image of
the secondary source signal to form the mixed video
signal.
7. An audio/video mixer for disc jockeys comprising:
a main housing;
a plurality of video inputs located on the main housing, a
What is claimed is:
1. An audio/video mixer for disc jockeys comprising:
a main housing;
a plurality of video inputs located on the main housing, a
plurality of video signals respectively corresponding to
the plurality of video inputs;
plurality of video signals respectively corresponding to
the plurality of video inputs;
a plurality of audio inputs located on the main housing, a
plurality of audio signals respectively corresponding to
the plurality of audio inputs;
a ?rst video bus located Within the main housing and
being selectively settable to carry one of said plurality
of video signals of the plurality of video inputs;
Oct. 20, 2005
US 2005/0231642 A1
a second video bus located Within the main housing and
being selectively settable to carry one of said plurality
a third video input located on the main housing and
having a third video signal;
of video signals of the plurality of video inputs;
a fourth video input located on the main housing and
a video control on the main housing for selectively mixing
the selected video signal on the ?rst video bus and the
selected video signal on the second video bus into a
mixed video signal;
an audio control on the main housing for selectively
mixing the plurality of audio signals into a mixed audio
signal; and
having a fourth video signal;
a ?rst audio input located on the main housing and having
a ?rst audio signal;
a second audio input located on the main housing and
having a second audio signal;
a video output connected to the mixed video signal; and
a ?rst video bus located Within the main housing and
being selectively settable to carry one of said ?rst video
an audio output connected to the mixed audio signal.
8. The mixer of claim 7, further comprising a ?rst means
signal, second video signal, third video signal, and
fourth video signal;
for applying a digital video special effect to the selected
video signal of the ?rst video bus.
9. The mixer of claim 8, further comprising a second
means for applying a digital video special effect to the
selected video signal of the second video bus.
10. The mixer of claim 7, further comprising:
means for selectively choosing betWeen the selected video
signal of the ?rst video bus or the selected video signal
of the second video bus to be used as a primary source
signal;
a second video bus located Within the main housing and
being selectively settable to carry one of said ?rst video
signal, second video signal, third video signal, and
fourth video signal;
a video control, located on the main housing, for selec
tively mixing the selected video signal on the ?rst video
bus and the selected video signal on the second video
bus into a mixed video signal;
an audio control, located on the main housing, for selec
means for selectively choosing betWeen the selected video
signal of the ?rst video bus or the selected video signal
tively mixing the ?rst audio signal and the second audio
signal into a mixed audio signal;
of the second video bus to be used as a secondary
source signal; and
a video output connected to the mixed video signal; and
means for super-imposing the secondary source signal
over the primary source signal in a picture-in-picture
WindoW to form the mixed video signal.
11. The mixer of claim 7, further comprising a joystick for
positioning said picture-in-picture WindoW Within said pri
mary source signal.
12. The mixer of claim 7, further comprising means for
selectively applying a transition video special effect from the
selected video signal of the ?rst video bus to the selected
video signal of the second video bus and vice versa.
13. The mixer of claim 7, further comprising:
means for selectively choosing betWeen the selected video
signal of the ?rst video bus or the selected video signal
of the second video bus to be used as a primary source
signal;
an audio output connected to the mixed audio signal.
15. The mixer of claim 14, further comprising a ?rst
means for applying a digital video special effect to the
selected video signal of the ?rst video bus.
16. The mixer of claim 15, further comprising a second
means for applying a digital video special effect to the
selected video signal of the second video bus.
17. The mixer of claim 14, further comprising:
means for selectively choosing betWeen the selected video
signal of the ?rst video bus or the selected video signal
of the second video bus to be used as a primary source
signal;
means for selectively choosing betWeen the selected video
signal of the ?rst video bus or the selected video signal
means for selectively choosing betWeen the selected video
signal of the ?rst video bus or the selected video signal
of the second video bus to be used as a secondary
source signal; and
of the second video bus to be used as a secondary
source signal; and
means for super-imposing the secondary source signal
over the primary source signal in a picture-in-picture
WindoW to form the mixed video signal.
18. The mixer of claim 14, further comprising a joystick
means for replacing areas of a predetermined color of the
primary source signal With the corresponding image of
the secondary source signal to form the mixed video
signal.
14. An audio/video mixer for disc jockeys comprising:
a main housing;
a ?rst video input located on the main housing and having
a ?rst video signal;
a second video input located on the main housing and
having a second video signal;
for positioning said picture-in-picture WindoW Within said
primary source signal.
19. The mixer of claim 14, further comprising means for
selectively applying a transition video special effect from the
selected video signal of the ?rst video bus to the selected
video signal of the second video bus and vice versa.
20. The mixer of claim 14, further comprising:
means for selectively choosing betWeen the selected video
signal of the ?rst video bus or the selected video signal
Oct. 20, 2005
US 2005/0231642 A1
of the second video bus to be used as a primary source
signal;
means for selectively choosing betWeen the selected video
signal of the ?rst video bus or the selected video signal
of the second video bus to be used as a secondary
source signal; and
means for replacing areas of a predetermined color of the
primary source signal With the corresponding image of
the secondary source signal to form the mixed video
signal.
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