Musical apparatus detecting maximum values and/or peak values of reflected light beams to control musical functions2010-03-08 00:00:00to when it is held to the side. Consequently, in a case where ON/OFF operation instructions are performed according to whether or not the quantity of received light exceeds a specified threshold value, the probability of erroneous operation is high if the operation instruction is performed based purely on the height of the hand as the only scale. In other words, a problem with this type of prior musical control device is that it was difficult for the operator to discern at what proximity to the sensor the switch will be turned ON or OFF. In addition, the type of the operation instruction was limited to whether to perform a certain control, i.e., no more than the binary ON/OFF control of a single specified process could be accomplished.
SUMMARY OF THE INVENTION
Electronic musical apparatuses described herein include electronic musical instruments, music-related sound generation devices, music-related sound modification devices, and their controllers, including, for example, synthesizers, keyboards, drum machines, effects processors, effects pedals, sequencers and sound modules.
A first, separate aspect of the invention is an electronic musical apparatus which executes desired operation instructions more accurately by detecting the characteristics of the movement of an object within an operation space, and further
performing a variety of types of operation instructions in response to the state of motion of the object.
A second, separate aspect of the invention is an electronic musical apparatus which is able to distinguish between various types of movement of an object in an operation space.
A third, separate aspect of the invention is an electronic musical apparatus which is able to determine whether an object in moving from right to left, or left to right, in the operation space, and to control a musical function based on the direction of movement of the object.
A fourth, separate aspect of the invention is an electronic musical apparatus which is able to determine whether an object in moving horizontally or vertically relative to the light sensor and to control a musical function based on the direction of movement of the object.
A fifth, separate aspect of the invention is an electronic musical apparatus which controls a first musical function based on the horizontal movement of an object in the operation space and controls a second musical function based on the vertical movement of the object.
A sixth, separate aspect of the invention is an electronic musical apparatus which detects the peak value of the detection value of light reflected off an object in space and controls a musical function based on the peak value.
A seventh, separate aspect of the invention is an electronic musical apparatus which detects a detection value for each light path from light source to the object in space to the light receiver and controls a musical function based on a relationship between the detection values.
A eighth, separate aspect of the invention is an electronic musical apparatus in which the axes on which the light beams of the light sources incline outwardly from one another.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a drawing showing the hardware configuration of an electronic musical instrument as an example embodiment of the invention.
FIG. 2 is a drawing showing the panel configuration of the device of the example embodiment of FIG. 1.
FIG. 3 is a drawing explaining the data structure of a phrase which is used in the device of the embodiment of FIG. 1.
FIG. 4 is a drawing showing the structure of data which is stored in RAM in the device of the embodiment of FIG. 1.
FIG. 5 is a drawing...
Electronic musical instrument with means for automatically generating chords and harmony2010-02-05 00:00:00chip for
performing a variety of logical operations for the production of chords and various accompaniment signals automatically, in response to depression of one or two keys within a related portion of the keyboard of the instrument. A multiplexer is employed, in association with the keyboard, to produce a train of signals in response to depression of one or more keys, and one or more function control switches; certain ones of these signals are used to address a plurality of read only memory devices for the generation of the several components needed for the mode of operation which is selected. In an automatic chord mode, a chord is selected automatically, corresponding to an operated key of the keyboard. The chord components include the root, the third (which may be selectively minored), the fifth, the sixth and the seventh (which can be selected or not). The several chord components are mixed in a stair step network for one output signal, amd may selectively be produced individually for an arpeggio or a strum or both.ClaimsWhat is claimed is:
1. In an electronic musical instrument having a plurality of function selecting switches, a keyboard, tone signal generating means responsive to operation of the keyboardkeys, and an output system responsive to said tone signal generating means, the combination comprising: signal producing means responsive to the operation of one or more keys of said keyboard for producing a digitally coded signal indicative of aselected chord; said tone generating means including N separate tone signal generators, one for each note of an N note chord; first connector means for applying at least a selected portion of said coded signal to each of said tone signal generators,each of said tone signal generators producing an output tone signal, in response to the signal applied thereto, corresponding to a different note of said selected chord; and second connector means, connected to said function switches and to said outputsystem and responsive at least in part to said function switches, for selectively applying the output tone signals from said tone signal generators to said output system.
2. Apparatus according to claim 1, including multiplex means comprising a plurality of single-pole switches associated with the keys of said keyboard, one pole of each of said switches being connected to one of a first set of conductors, thesecond pole of each of said switches being connected to one of a second set of conductors, said first set of conductors connecting in common the first terminal of all said switches associated with keys of the same note name, said second set of conductorsconnecting in common a second terminal of all of said switches associated with keys of the same octave group, means for repetitively scanning said first set of conductors at a first rate, means connected with said second set of conductors for scanningsaid second set of conductors at a second rate which permits the complete scan of all of said first set of conductors while each individual conductor of said second set is being scanned, and means for connecting said second set of conductors to a commonoutput terminal, whereby there is produced at said common output terminal a train of pulses corresponding to operated ones of said switches, occurring in time encoded position in accordance with the operated switches.
3. Apparatus according to claim 2, wherein the scanning means for said first set of conductors incorporates counting means for manifesting a representation of the note name of the key being scanned at any instant, and means for connecting saidstorage means to said counting means, for storing a representation of said note name in response to a pulse received from one of a group of predetermined keys.
4. Apparatus according to claim 2, including pulse adding means connected to said common output terminal, for adding pulses to said pulse train corresponding to unoperated keys which are related to the tone signals produced by said tone signalgenerators.
5. Apparatus according to claim 1, wherein said signal producing means include means for producing a series of separate pulses, one for each operated key of a predetermined group of keys, means responsive to a first of said pulses for initiatinga window period, means responsive to another of said pulses for terminating said window period, and means for manifesting a window signal during said window period.
6. Apparatus according to claim 5, including means responsive to said window signal and to one of said pulses occurring during said window period for producing a gating pulse, and means for connecting said gating pulse to said storage means,manifesting means for manifesting a representation of the note name of the key represented by said gating pulse and means for connecting said manifesting means to said storage means to cause said storage means to store said representation at the time ofsaid gating pulse.
7. Apparatus according to claim 6, including means for identifying the first of said pulses occurring during a window period and for producing said gating pulse in response thereto.
8. Apparatus according to claim 6, including means for identifying every one of said pulses occurring during said window period and producing said gating pulse in response thereto, whereby said storage means is caused to store the representationof the key corresponding to the last pulse received within said window period.
9. Apparatus according to claim 1, including manifesting means responsive to said signal producing means for manifesting a representation of the note name of an operated key of said keyboard, storage means connected to said manifesting means andto said signal generating means and operative to store the representation manifested by said manifesting means, means connecting all of said tone signal generators to said storage means, said tone signal generators being responsive to the output of saidstorage means for generating tone signals having frequencies bearing a predetermined relation to the note name representation stored in said storage means.
10. Apparatus according to claim 9, wherein each of said generators comprises a programmable frequency synthesizer having a read only memory, addressing means for said read only memory, and a programmable divider connected t...
