US4603386A
Expired / Lapsed
US
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Apparatus and method for inputting musical sheet data into a musical-sheet-printing system
Assignee: Toppan Inc
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Filing: 1984-04-06
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Granted: 1986-07-29
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Expires: 2004-04-06
Abstract
Abstract An apparatus for inputting musical sheet data into a musical-sheet-printing system has a piano keyboard which has diatonic tone keys and chromatic tone keys and which generates first coded data, a function keyboard, a random access memory (RAM) for storing coded data supplied from these keyboards, a read-only memory for storing a permanent program and a conversion table representing a relationship between tonality values and chromatic tone pitches, and a control unit, under the control of the permanent program, for presetting a predetermined number of note data for the coded musical data, storing in the RAM the respective musical data included in the predetermined number of note data, accumulating the respective note data, calculating the respective entropy data in accordance with the accumulated musical data, selecting a tonality value having a maximum entropy, and determining an accidental and a note in accordance with the selected tonality value with reference to the conversion table. A method of entering note data in the musical-sheet-printing system has a step for receiving pitch data, a step for sorting and accumulating them in accordance with the number of times of occurrence thereof, a step for classifying pitch data of all scales into 12 groups, each scale having 7 pitch data and generating the 12-grouped pitch data, a step for calculating entropies of 12 groups in accordance with an equation <IMAGE> (H: entropy; Pi: probability of the number of times of occurence) and selecting a maximum entropy, and a step for determining the corresponding accidental and tone in accordance with the conversion table.
Inventors
- 👤 Mogens Kjaer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:05
CPC Classifications
B; B41; B41B; B41B27/00; B41M; B41M3/00; B41M3/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
105 words
An apparatus for inputting musical sheet data into a musical sheet printing system, comprising: first musical keyboard means, having diatonic scale keys and chromatic scale keys, for allowing simultaneous entry of a plurality of notes and for generating first coded musical data; second musical keyboard means, having a plurality of function keys and alphanumeric keys, for generating second coded musical data; memory means, connected to said first and second musical keyboard means, for storing the first and second coded musical data; and controlling means for performing a predetermined operation on the first and second coded musical data and determining a tone and an accidental thereof.
Claim 2
Independent Claim
105 words
An apparatus for inputting musical sheet data into a musical sheet printing system, comprising: first musical keyboard means, having diatonic scale keys and chromatic scale keys, for allowing simultaneous entry of a plurality of notes and for generating first coded musical data; second musical keyboard means, having a plurality of function keys and alphanumeric keys, for generating second coded musical data; memory means, connected to said first and second musical keyboard means, for storing the first and second coded musical data; and controlling means for performing a predetermined operation on the first and second coded musical data and determining a tone and an accidental thereof.
Claim 3
Dependent Claim
184 words
An apparatus according to claim 1, wherein said controlling means includes a programmable microprocessor connected to said first and second music keyboard means and said memory means, said programmable microprocessor including a central processing unit for receiving the first and second coded musical data and a read-only memory device for storing a permanent program which is executed by said central processing unit and a conversion table representing a relationship between tonality values and chromatic tone pitches, so that said controlling means performs a predetermined operation in accordance with the permanent program; said controlling means controls said first and second keyboard means and said memory means such that a predetermined number of note data to be processed is preset for the first and second coded musical data, respective note data included in the predetermined number of note data are stored in said memory means and are accumulated, respective entropies are calculated in accordance with accumulated musical data, a tonality value having a maximum entropy is selected, and the accidental and tone are determined in accordance with the selected tonality value referring to the conversion table.
Claim 4
Dependent Claim
39 words
An apparatus according to claim 2, wherein the respective entropies are calculated in accordance with an equation ##EQU8## where H is an entropy and Pi is a probability of a number of times each of the musical data occurs.
Claim 5
Dependent Claim
15 words
An apparatus according to claim 2, further comprising displaying means for displaying the determined tone.
Claim 6
Dependent Claim
169 words
An apparatus according to claim 1, wherein said controlling means includes a programmable microprocessor connected to said first and second music keyboard means and said memory means; said programmable microprocessor including a central processing unit for receiving the first and second coded musical data and a read-only memory device for storing a permanent program which is performed by said central processing unit and a conversion table representing a relationship between tonality values and chromatic tone pitches, so that said controlling means performs a predetermined operation in accordance with the permanent program; said controlling means controls said first and second keyboard means and said memory means such that the first and second musical data are multiplied by a weighting coefficient, multiplied data are stored in said memory means and are accumulated, respective entropies are calculated in accordance with accumulated musical data, a tonality value having a maximum entropy is selected, and the accidental and tone are determined in accordance with the selected tonality value with reference to the conversion table.
Claim 7
Dependent Claim
39 words
An apparatus according to claim 5, wherein the respective entropies are calculated in accordance with an equation ##EQU9## where H is an entropy and Pi is a probability of a number of times each of the musical data occurs.
Claim 8
Dependent Claim
15 words
An apparatus according to claim 5, further comprising displaying means for displaying the determined tone.
Claim 9
Dependent Claim
39 words
An apparatus according to claim 1, wherein the respective entropies are calculated in accordance with an equation ##EQU10## where H is an entropy and Pi is a probability of a number of times each of the musical data occurs.
Claim 10
Dependent Claim
15 words
An apparatus according to claim 8, further comprising displaying means for displaying the determined tone.
Claim 11
Dependent Claim
15 words
An apparatus according to claim 1, further comprising displaying means for displaying the determined tone.
Claim 12
Independent Claim
131 words
A method of entering musical sheet data in a musical sheet-printing system, comprising the steps of: receiving pitch data; classifying the pitch data in accordance with pitches thereof and accumulating the number of times pitch data occur for respective pitches; classifying into 12 groups seven types of pitch data in a diatonic scale in accordance with accumulated data and generating grouped pitch data; calculating an entropy of each group of said 12 groups in the diatonic scale in accordance with a relation: ##EQU11## where H is the entropy and Pi is the probability of occurence; selecting a maximum entropy of entropies of the 12 groups; and determining an accidental and tone of the input data by referring to a conversion table representing a relationship between tonality and pitches of chromatic tones.
Claim 13
Independent Claim
131 words
A method of entering musical sheet data in a musical sheet-printing system, comprising the steps of: receiving pitch data; classifying the pitch data in accordance with pitches thereof and accumulating the number of times pitch data occur for respective pitches; classifying into 12 groups seven types of pitch data in a diatonic scale in accordance with accumulated data and generating grouped pitch data; calculating an entropy of each group of said 12 groups in the diatonic scale in accordance with a relation: ##EQU11## where H is the entropy and Pi is the probability of occurence; selecting a maximum entropy of entropies of the 12 groups; and determining an accidental and tone of the input data by referring to a conversion table representing a relationship between tonality and pitches of chromatic tones.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-28 | 1990-01-27 | 1990-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-28 | 1994-01-27 | 1994-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-28 | 1998-01-27 | 1998-07-29 | $7700.00 | Window Closed / Lapsed |