Patent US5869782A successfully refreshed from Google Patents.
US5869782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Musical data processing with low transmission rate and storage capacity
Assignee: JVCKenwood Corp
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Filing: 1996-10-30
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Granted: 1999-02-09
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Expires: 2016-10-30
Abstract
Abstract Each musical performance data of a source file includes time data, note data indicative of music sound start or music sound stop at a moment indicated by the time data, and accent data indicative of sound velocity. The time data, the note, and either the music sound start or the music sound stop are recorded in a first recording area in accordance with the time data. The accent data is recorded in a second recording area. The second recording area is separated from the first recording area. The recorded data in the first and second areas are combined to obtain a target file. And, the another file is recorded in a recording medium. A reproducing apparatus reproduces the recorded musical performance data. The musical performance data are decoded and temporarily stored into a storage medium. The decoded and temporarily stored data are controlled such that the note and accent data are reproduced before the control data. A sound source reproduces the controlled musical performance data and generates music sounds in accordance with the reproduced data.
Inventors
- 👤 Ichiro Shishido
- 👤 Toshio Kuroiwa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:18
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/10; G10; G10H; G10H1/00; G10H1/0033; G10H1/0041; G10H1/0058; G10H1/0066; G10H2240/00; G10H2240/171; G10H2240/201; G10H2240/241
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
136 words
A method of recording a file of sequential musical performance data each including time data, note data indicative of a note and music sound start or music sound stop of the note at a moment indicated by the time data, and accent data indicative of sound velocity, comprising the steps of: sequentially reading the musical performance data; recording the time data, the note, and either the music sound start or the music sound stop in a first recording area in accordance with the time data; recording all the accent data included in the sequential musical performance data in a second recording area, the second recording area being separated from the first recording area; combining the recorded data in the first and second areas to obtain another file; and recording the another file in a recording medium.
Claim 2
Independent Claim
136 words
A method of recording a file of sequential musical performance data each including time data, note data indicative of a note and music sound start or music sound stop of the note at a moment indicated by the time data, and accent data indicative of sound velocity, comprising the steps of: sequentially reading the musical performance data; recording the time data, the note, and either the music sound start or the music sound stop in a first recording area in accordance with the time data; recording all the accent data included in the sequential musical performance data in a second recording area, the second recording area being separated from the first recording area; combining the recorded data in the first and second areas to obtain another file; and recording the another file in a recording medium.
Claim 3
Dependent Claim
107 words
The method according to claim 1, wherein the file consists of a plurality of musical performance data each including the time, note, and accent data, and another plurality of musical performance data each including control data, further comprising the steps of: determining, by use of discrimination data added to the control data, whether the musical performance data thus read includes the control data; when the determining is made, recording the control data in a third recording area, the third recording area being separated from the first and second recording areas; and combining the recorded data in the first, second, and third areas to obtain the another file.
Claim 4
Independent Claim
178 words
An apparatus for reproducing compressed sequential musical performance data, comprising: decoding means for decoding the compressed sequential musical performance data stored in a first storage medium, each musical performance data including time data, note data indicative of music sound start and music sound stop at a moment indicated by the time data, accent data indicative of sound velocity, and control data, all the note data, all the accent data, and all the control data included in the compressed sequential musical performance data being recorded in a first, a second, and a third recording area separated from each other in the first storage medium; a second storage medium that temporarily stores the decoded sequential musical performance data; control means for controlling reproduction of the decoded sequential musical performance data temporarily stored in the second storage medium such that the note and accent data are reproduced before the control data; and a sound source that reproduces the sequential musical performance data thus controlled by the control means and generates music sounds in accordance with the reproduced sequential musical performance data.
Claim 5
Independent Claim
178 words
An apparatus for reproducing compressed sequential musical performance data, comprising: decoding means for decoding the compressed sequential musical performance data stored in a first storage medium, each musical performance data including time data, note data indicative of music sound start and music sound stop at a moment indicated by the time data, accent data indicative of sound velocity, and control data, all the note data, all the accent data, and all the control data included in the compressed sequential musical performance data being recorded in a first, a second, and a third recording area separated from each other in the first storage medium; a second storage medium that temporarily stores the decoded sequential musical performance data; control means for controlling reproduction of the decoded sequential musical performance data temporarily stored in the second storage medium such that the note and accent data are reproduced before the control data; and a sound source that reproduces the sequential musical performance data thus controlled by the control means and generates music sounds in accordance with the reproduced sequential musical performance data.
Claim 6
Independent Claim
64 words
An apparatus for compressing sequential musical performance data, comprising: separating means for separating the musical performance data into at least note number data, sound velocity data, sound duration data, and control data, the separated data including respective information which is the same among the sequential musical performance data; and compressing means for compressing each of the separated data to form compressed musical performance data.
Claim 7
Independent Claim
64 words
An apparatus for compressing sequential musical performance data, comprising: separating means for separating the musical performance data into at least note number data, sound velocity data, sound duration data, and control data, the separated data including respective information which is the same among the sequential musical performance data; and compressing means for compressing each of the separated data to form compressed musical performance data.
Claim 8
Dependent Claim
18 words
The apparatus according to claim 4, wherein the compressing means compresses the separated data by the Lempel-Zif method.
Claim 9
Dependent Claim
43 words
The apparatus according to claim 4, wherein the separating means comprises means for calculating a common divisor of relative times among the sequential musical performance data and means for dividing the relative times by the common divisor to generate compressed musical performance data.
Claim 10
Dependent Claim
51 words
The apparatus according to claim 4, wherein the separating means comprises means for calculating durations, each duration being between a start of a note and an end of the note, calculating a common divisor of the durations, and dividing the durations by the common divisor to generate compressed musical performance data.
Claim 11
Dependent Claim
68 words
The apparatus according to claim 4, wherein the separating means comprises means for forming a code of at least any one of the note number data, sound velocity data, and control data, the code being expressed by means of a difference between a data obtained by a function of the one of the note number data, sound velocity data, and control data and the one of the data.
Claim 12
Dependent Claim
49 words
The apparatus according to claim 4, wherein the separating means comprises means for forming a code in which the note number data, sound velocity data, sound duration data, and control data are arranged in a specific order such that data of same nature are arranged close to each other.
Claim 13
Independent Claim
73 words
An apparatus for decoding compressed sequential musical performance data, comprising: first decoding means for decoding the musical performance data compressed by the Lempel-Zif method; and second decoding means for decoding the musical performance data thus decoded b the first decoding means to reproduce at least note number data, sound velocity data, sound duration data, and control data, the separated data including respective information which is the same among the sequential musical performance data.
Claim 14
Independent Claim
73 words
An apparatus for decoding compressed sequential musical performance data, comprising: first decoding means for decoding the musical performance data compressed by the Lempel-Zif method; and second decoding means for decoding the musical performance data thus decoded b the first decoding means to reproduce at least note number data, sound velocity data, sound duration data, and control data, the separated data including respective information which is the same among the sequential musical performance data.
Claim 15
Dependent Claim
83 words
The apparatus according to claim 10, further comprising means for determining, by use of discrimination data added to each compressed musical performance data, whether the musical performance data is data compressed by the Lempel-Zif method and, if so, supplying the musical performance data to the first decoding means, whereas, if not, then supplying the musical performance data directly to the second decoding means to reproduce at least the note number data, the sound velocity data, the sound duration data, and the control data.
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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) | 2002-02-08 | 2002-08-10 | 2003-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-02-08 | 2006-08-10 | 2007-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-02-08 | 2010-08-10 | 2011-02-09 | $7700.00 | Window Closed / Lapsed |