Data processing: generic control systems or specific application – Specific application – apparatus or process – Digital audio data processing system
Reexamination Certificate
2002-05-07
2004-06-01
Mei, Xu (Department: 2644)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Digital audio data processing system
C381S119000
Reexamination Certificate
active
06745091
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a digital audio signal player having a simulated analogue record, which can mark those portions of data of music stored in a RAM that are suitable for production of special effect so that these portions can be immediately located, and played as music with changing speed and direction when a DJ's hand turns a control element to simulate an analogue record being turned on a turntable with the DJ' hand.
In order to help increase hot and exciting atmosphere in a concert or a party such as is held in a PUB or a dancing hall, the DJ would make the music played with changing tone and speed by means of moving the analogue record on the turntable in various ways. When the DJ stoops moving the record with his hands, the record will be played on the record player in a normal way immediately.
However, a single analogue record has very limited capacity for storing music, therefore the DJ has to prepare a lot of records in each party that are likely to cause him inconvenience due to the large size and heavy weight.
In order to overcome the above disadvantages, referring to
FIG. 2
, the inventor of the present invention had disclosed a digital audio signal player having a simulated analogue record, which includes a driving IC
11
, a CD driving motor
111
, a turntable
112
, an ejection motor
113
, a laser pick-up
114
, a laser pick-up moving motor
115
, a microprocessor
12
, a control panel
121
, a high frequency amplifier
13
, a CD digital processor
14
, a digital audio signal processor
15
, a dynamic RAM
151
, a digital/analog converter
17
, a turnable control element
16
, a high frequency alternator
19
and a low pass filter
18
.
The turntable
112
is provided for holding an analogue CD, and connected to the CD driving motor
111
. The driving IC
11
is electrically connected to the CD driving motor
111
, and the ejection motor
113
for activating the same to turn the turntable
112
, and to eject the turntable
112
for removal of the CD respectively.
When the microprocessor
12
is activated, the same will make the high frequency amplifier
13
send out laser light, and activate the laser pick-up
114
by means of both the CD digital processor
14
and the driving IC
11
. The driving IC
11
will also activate the laser pick-up moving motor
115
to move the laser pick-up
114
. The laser pick-up
114
sends a signal to the CD digital processor
14
via the high frequency amplifier
13
such that the CD digital processor
14
can inform the microprocessor
12
whether the laser light has focused; if the laser light fails to focus, the microprocessor
12
will stop; if the laser light focuses successfully, the microprocessor
12
will activate the CD digital processor
14
so that the processor
14
makes the driving IC
11
activate the CD driving motor
111
; the analogue CD positioned on the turntable
112
is rotated at two times the normal speed when the CD driving motor
111
is activated. And, the laser pick-up
114
reads the data of the analogue CD, and sends the data to both the microprocessor
12
and the digital audio signal processor
15
via the high frequency amplifier
13
and the CD digital processor
14
; the microprocessor
12
will also make the control panel
121
, which is electrically connected to it, show information about the CD; the digital audio signal processor
15
will store the data of the CD in the dynamic RAM
151
.
The control element
16
is made of conductive materials, and is electrically connected to the digital audio signal processor
15
. The control element
16
has a light sensitive device
161
, which will senses rotating speed and direction thereof.
The high frequency alternator
19
constantly sends out a high frequency signal, and has an output terminal electrically connected to P pole of a diode
191
connected in series with a buffer
192
electrically connected to the microprocessor
2
; the control element
16
also has an output terminal connected to the P pole of the diode
191
. The microprocessor
12
makes the digital audio signal processor
15
send out the digital data stored in the RAM
151
in a normal way so that the music is played in an original manner when it receives the high frequency signal in a non-reduced form. Because a human body has capacitance, the control element
16
will send an interfering signal to the diode
191
so as to reduce the high frequency signal passing through the diode
191
when touched by a hand of a person, thus making the microprocessor
12
receive a high frequency signal in a reduced form from the high frequency alternator
19
. The microprocessor
12
makes the digital audio signal processor
15
send out the digital data in a manner according to the movement of the control element
16
as sensed by the light sensitive device
161
when receiving the reduced high frequency signal.
Therefore, music can be played with changing speed and direction by means of rotating the control element
6
with a hand, and can be played in a normal way as soon as the hand is removed from the control element
6
. However, in light of the fact that only some particular portions of a music is suitable for production of special effect, i.e. played with changing speed and direction, there is an disadvantage to this audio signal player that the DJ has to listen very carefully to the music being played in order to recognize those portions suitable for special effect immediately; when he recognize the suitable portions, he will turn the control element to make the same played with changing speed and direction. Furthermore, in using this audio signal player, nothing can be done by the DJ to make the player play the suitable portions immediately but wait when he needs to produce special effect. In other words, this audio signal player is relatively inconvenient as compared with conventional record players; in using conventional players, the DJ only has to mark those portions of a record suitable for special effect previously, and can move the pickup to the suitable portions when he wants to produce special effect.
SUMMARY OF THE INVENTION
It is a main object of the present invention to provide a digital audio signal player having a simulated analogue record that can mark those portions of music that are suitable for production of special effect so that these portions can be immediately located, and played as music with changing speed and direction when a DJ's hand turns a control element to simulate an analogue record being turned on a turntable with the DJ's hand for producing special effect.
In the digital audio signal player having a simulated analogue record of the present invention, both a special memory activating button, and a special-function activating button are provided on the control panel; the special memory activating button is provided for a DJ to operate to mark those portions of musical data that are suitable for production of special effect in the dynamic RAM. When the special-function activating button is pressed to the on position, the marked suitable portions of musical data is located as soon as the microprocessor decides that a DJ is touching the control element with his hands; thus, the marked suitable portions of musical data are played as music immediately and with speed and direction changing in a manner according to the movement of the control element. Therefore, the DJ doesn't have to wait for those portions of music that are suitable for special effect to appear during the course of playing music.
REFERENCES:
patent: 5502703 (1996-03-01), Yamada et al.
patent: 5512704 (1996-04-01), Adachi
patent: 5675557 (1997-10-01), Hubinger
patent: 6058079 (2000-05-01), Usui
patent: 6545953 (2003-04-01), Herbert
patent: 6618329 (2003-09-01), Liu
patent: 2002/0111703 (2002-08-01), Cole
patent: 2139762 (1984-11-01), None
Hanpin Electron Co., Ltd.
Mei Xu
LandOfFree
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