Pan-pot control apparatus

Claim 2

A pan-pot control apparatus comprising: an input terminal connected to receive an input tone signal; pan-pot control means connected to receive said input tone signal for moving a pan-pot left and right and front and rear, the pan-pot control means including: a first amplitude control means for periodically changing the amplitude of said input tone signal at the first phase. a second amplitude control means for periodically changing the amplitude of the output signal of the first amplitude control means at a second phase different by about 90 degrees from the first phase, and a third amplitude control means for periodically changing the amplitude of the output signal of the first amplitude control means at a third phase different by about 180 degrees from the second phase; and at least two loudspeakers connected to receive output signals of said pan-pot control means for sounding a tone which is controlled in right-left and front-rear pan-pot fashion.

Claim 3

The appparatus of claim 1, wherein said first, second and third amplitude control means respectively have control input terminals to receive a first sine-wave signal in phase with the output signal of said first amplitude control means, a second sine-wave signal with about a 90 degrees phase difference from the first sine-wave signal and a third sine-wave signal with about a 180 degrees phase difference from the second sine-wave signal.

Claim 4

The apparatus of claim 2, wherein said sine-wave signals have a frequency lower than that of said input tone signal.

Claim 5

The apparatus of claim 1, wherein said pan-pot control means further includes a frequency control means for raising the frequency of the input tone signal when the pan-pot is moving to the front, and for lowering the frequency of the input tone signal when the pan-pot is moving to the rear.

Claim 6

The apparatus of claim 4, wherein said frequency control means includes a bucket brigade device and means for controlling the speed at which a tone signal passes through the bucket brigade device as the pan-pot moves front and rear.

Claim 7

The apparatus of claim 1, wherein each of said amplitude control means comprises a voltage controlled amplifier means.

Claim 8

The apparatus of claim 1, wherein said input tone signal is a single tone signal.

Claim 9

A pan-pot control apparatus comprising: an input terminal connected to receive an input tone signal; pan-pot control means connected to receive said input tone signal for moving a pan-pot left and right and front and rear, the pan-pot control means including: a first amplitude control means for periodically changing the amplitude of said input tone signal at a first phase, a second amplitude control means for periodically changing the amplitude of the output signal of the first amplitude control means at a second phase different by about 90 degrees from the first phase, a third amplitude control means for periodically changing the amplitude of the output signal of the first amplitude control means at a third phase different by about 180 degrees from the second phase, a fourth amplitude control means for periodically changing the amplitude of said input tone signal at a fourth phase different by about 180 degrees from the first phase, a fifth amplitude control means for periodically changing the amplitude of the output signal of the fourth amplitude control means at the second phase, and a sixth amplitude control means for periodically changing the amplitude of the output signal of the fourth amplitude control means at the third phase; and four loudspeaker means connected to receive output signals of said pan-pot control means for sounding a tone which is controlled in right-left and front-rear pan-pot fashion, the four loudspeaker means including, a first loudspeaker means coupled to receive an output of said second amplitude control means, a second loudspeaker means coupled to receive an output of said third amplitude control means, a third loudspeaker means coupled to receive an output of said fifth amplitude control means, and a fourth loudspeaker means coupled to receive an output of said sixth amplitude control means.

Claim 10

A pan-pot control apparatus comprising: an input terminal connected to receive an input tone signal; pan-pot control means connected to receive said input tone signal for moving a pan-pot left and right and front and rear, the pan-pot control means including: a first amplitude control means for periodically changing the amplitude of said input tone signal at a first phase, a second amplitude control means for periodically changing the amplitude of the output signal of the first amplitude control means at a second phase different by about 90 degrees from the first phase, a third amplitude control means for periodically changing the amplitude of the output signal of the first amplitude control means at a third phase different by about 180 degrees from the second phase, a fourth amplitude control means for periodically changing the amplitude of said input tone signal at a fourth phase different by about 180 degrees from the first phase, a fifth amplitude control means for periodically changing the amplitude of the output signal of the fourth amplitude control means at the second phase, and a sixth amplitude control means for periodically changing the amplitude of the output signal of the fourth amplitude control means at the third phase; and four loudspeaker means connected to receive output signals of said pan-pot control means for sounding a tone which is controlled in right-left and front-rear pan-pot fashion, the four loudspeaker means including, a first loudspeaker means coupled to receive an output of said second amplitude control means, a second loudspeaker means coupled to receive an output of said third amplitude control means, a third loudspeaker means coupled to receive an output of said fifth amplitude control means, and a fourth loudspeaker means coupled to receive an output of said sixth amplitude control means.

Claim 11

The apparatus of claim 8, wherein each of said amplitude control means comprises a voltage controlled amplifier means.

Claim 12

The apparatus of claim 8, wherein said first to sixth amplitude control means respectively have control input terminals to receive a first sine-wave signal in phase with the output signal of said first amplitude control means, a second sine-wave signal with about a 90 degrees phase difference from said first sine-wave signal, a third sine-wave signal with about a 180 degrees phase difference from said first sine-wave signal, a third sine-wave signal with about a 180 degrees phase difference from the second sine-wave signal, a fourth sine-wave signal with about a 180 degrees phase difference from said first sine-wave signal, a fifth sine-wave signal which is a same wave signal with said second sine-wave signal, and a sixth sine-wave signal which is a same wave signal with said third sine-wave signal.

Claim 13

The appatatus of claim 10, wherein said frequency control means includes a bucket brigade device and means for controlling the speed at which a tone signal passes through the bucket brigade device as the pan-pot moves front and rear.

Claim 14

The apparatus of claim 10, wherein said sine-wave signals have a frequency lower than that of said input tone signal.

Claim 15

The apparatus of claim 8, wherein said pan-pot control means further includes a frequency control means for raising the frequency of the input tone signal when the pan-pot is moving to the front, and for lowering the frequency of the input tone signal when the pan-pot is moving to the rear.

Claim 16

The apparatus of claim 13, wherein said frequency control means includes a bucket brigade device and means for controlling the speed at which a tone signal passes through the bucket brigade device as the pan-pot moves front and rear.

Claim 17

The apparatus of claim 8, wherein said input tone signal is a single tone signal.

Claim 18

A pan-pot control apparatus, comprising: a single input terminal connected to receive an input tone signal; a pan-pot control means for controlling a pan-pot of the input tone signal, said pan-pot control means including: a first pan-pot control means; a second pan-pot control means; said first pan-pot control means being a left-right or a front-rear pan-pot controller, and said second pan-pot control means being the other of said left-right or said front-rear pan-pot controller, said single input terminal being coupled to an input of only said first pan-pot control means and not to said second pan pot control means, an input of said second pan-pot control means being coupled to an input of said first pan pot control means, and said second pan-pot control means having two outputs; and two loudspeaker means connected respectively to said outputs of said second pan-pot control means for sounding a tone which is controlled in right-left and front-rear pan-pot fashion using two loudspeaker means.

Claim 19

A pan-pot control apparatus, comprising: a single input terminal connected to receive an input tone signal; a pan-pot control means for controlling a pan-pot of the input tone signal, said pan-pot control means including: a first pan-pot control means; a second pan-pot control means; said first pan-pot control means being a left-right or a front-rear pan-pot controller, and said second pan-pot control means being the other of said left-right or said front-rear pan-pot controller, said single input terminal being coupled to an input of only said first pan-pot control means and not to said second pan pot control means, an input of said second pan-pot control means being coupled to an input of said first pan pot control means, and said second pan-pot control means having two outputs; and two loudspeaker means connected respectively to said outputs of said second pan-pot control means for sounding a tone which is controlled in right-left and front-rear pan-pot fashion using two loudspeaker means.

Claim 20

The apparatus of claim 16, wherein said pan-pot control means further includes a frequency control means for raising the frequency of the input tone signal when the pan-pot is moving to the front, and for lowering the frequency of the input tone signal when the pan-pot is moving to the rear.

Claim 21

The apparatus of claim 16, wherein said frequency control means includes a bucket brigade device and means for controlling the speed at which a tone signal passes through the bucket brigade device as the pan-pot moves front and rear.

Claim 22

The apparatus of claim 16, wherein each of said amplitude control means comprises a voltage controlled amplifier means.

Claim 23

The apparatus of claim 16, wherein said input tone signal is a single tone signal.

Claim 24

The apparatus of claim 16, wherein said first pan-pot control means is a left-right pan-pot control means, and said second pan-pot control means is a front-rear pan-pot control means.

Claim 25

A pan-pot control apparatus comprising: an input terminal connected to receive an input tone signal; a single sine-wave signal generating means for generating a first sine-wave signal at a first phase; a phase shifter means coupled to said single sine-wave signal generating means for shifting the phase of said first sine-wave signal to produce first, second, third, and fourth sine wave signals, said second sine-wave signal being at a second phase different by substantially 90 degrees from the first phase, said third sine-wave singal being at a third phase different by substantially 180 degrees from the first phase, and said fourth sine wave singal being at a fourth phase different by substantially 270 degrees from the first phase; pan-pot control means connected to receive said input tone signal for moving a pan-pot left and right and front and rear, said pan-pot control means including: a first amplitude control means for periodically changing the amplitude of said input tone signal as a function of said second sine-wave signal, a second amplitude control means for periodically changing the amplitude of the output signal of the first amplitude control means as a function of third sine-wave signal, a third amplitude control means for periodically changing the amplitude of the output signal of the first amplitude control means as a function of said first sine-wave signal, a fourth amplitude control means for periodically changing the amplitude of said input tone signal as a function of said fourth sine-wave signal, a fifth amplitude control means for periodically changing the amplitude of the output signal of the fourth amplitude control means as a function of said third sine-wave signal, and a sixth amplitude control means for periodically changing the amplitude of the output signal of the fourth amplitude control means as a function of said first sine wave signal; and four loudspeaker means connected to receive output signals of said pan-pot control means for sounding a tone which is controlled in right-left and front-rear pan-pot fashion, the four loudspeaker means including, a first loudspeaker means coupled to receive an output of said second amplitude control means, a second loudspeaker means coupled to receive an output of said third amplitude control means, a third loudspeaker means coupled to receive an output of said fifth amplitude control means, and a fourth loudspeaker means coupled to receive an output of said sixth amplitude control means.

Claim 26

A pan-pot control apparatus comprising: an input terminal connected to receive an input tone signal; a single sine-wave signal generating means for generating a first sine-wave signal at a first phase; a phase shifter means coupled to said single sine-wave signal generating means for shifting the phase of said first sine-wave signal to produce first, second, third, and fourth sine wave signals, said second sine-wave signal being at a second phase different by substantially 90 degrees from the first phase, said third sine-wave singal being at a third phase different by substantially 180 degrees from the first phase, and said fourth sine wave singal being at a fourth phase different by substantially 270 degrees from the first phase; pan-pot control means connected to receive said input tone signal for moving a pan-pot left and right and front and rear, said pan-pot control means including: a first amplitude control means for periodically changing the amplitude of said input tone signal as a function of said second sine-wave signal, a second amplitude control means for periodically changing the amplitude of the output signal of the first amplitude control means as a function of third sine-wave signal, a third amplitude control means for periodically changing the amplitude of the output signal of the first amplitude control means as a function of said first sine-wave signal, a fourth amplitude control means for periodically changing the amplitude of said input tone signal as a function of said fourth sine-wave signal, a fifth amplitude control means for periodically changing the amplitude of the output signal of the fourth amplitude control means as a function of said third sine-wave signal, and a sixth amplitude control means for periodically changing the amplitude of the output signal of the fourth amplitude control means as a function of said first sine wave signal; and four loudspeaker means connected to receive output signals of said pan-pot control means for sounding a tone which is controlled in right-left and front-rear pan-pot fashion, the four loudspeaker means including, a first loudspeaker means coupled to receive an output of said second amplitude control means, a second loudspeaker means coupled to receive an output of said third amplitude control means, a third loudspeaker means coupled to receive an output of said fifth amplitude control means, and a fourth loudspeaker means coupled to receive an output of said sixth amplitude control means.

Claim 27

An apparatus according to claim 22, wherein said pan-pot control means further includes a frequency control means for raising the frequency of the input tone signal when the pan-pot is moving to the front and lowering the frequency of the input tone signal when the pan-pot is moving to the rear.

Claim 28

An apparatus according to claim 23, wherein said frequency control means includes a bucket brigade device, and means for controlling the speed at which a tone signal passes through the bucket brigade device as the pan-pot moves front and rear.

Claim 29

The apparatus of claim 22, wherein each of said amplitude control means comprises a voltage controlled amplifier means.

Claim 30

The apparatus of claim 22, wherein said input tone signal is a single tone signal.

Claim 31

The apparatus of claim 22, wherein said sine-wave signals have a frequency lower than that of said input tone signal.