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US5117727A Expired / Lapsed US ⏱️ 0.0 years remaining

Tone pitch changing device for selecting and storing groups of pitches based on their temperament

Assignee: Kawai Musical Instruments Manufacturing Co Ltd
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Filing: 1989-12-26
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Granted: 1992-06-02
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Expires: 2009-12-26
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Abstract

Abstract A tone pitch changing device comprising an operation content memory for storing the contents of an operation required for generating a sound having a pitch which belongs to one of a group of pitches, a frequency interval between each pair of adjacent pitches of each group being different among the groups of pitches, a group selecting unit for selecting and indicating one of the groups of pitches, an operation content reading unit for reading the contents of an operation, required for generating a sound having a pitch of the group selected and indicated by the group selecting unit, from the operation content storing unit, an operating unit for performing an operation in accordance with the contents of the operation read from the operation content reading unit, an operation result memory for storing the result of the operation performed by the operating unit, a pitch indicating unit for indicating a pitch of the group, and an operation result reading unit for reading the result of the operation performed with respect to a pitch indicated by the pitch indicating unit.

Inventors

  • 👤 Toshinori Matsuda

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 12:37
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/18; G10H1/20; G10H7/00; G10H7/002; G10H2210/00; G10H2210/395; G10H2210/411; G10H2210/471; G10H2210/481; G10H2210/491

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 280 words
A pitch changing device comprising: conversion content generating means for generating a content of a conversion required for attaining a sound having a pitch which belongs to one of a plurality of groups of pitches, a frequency interval between each pair of adjacent pitches of each group being different among said plurality of groups of pitches; group selecting means for selecting and indicating one group of said plurality of groups of pitches; converting means for performing a conversion in accordance with the content of the conversion, which is required for generating a sound having a pitch and which belongs to the group selected and indicated by said group selecting means, from said conversion content generating means; conversion result storing means for storing a result of the conversion performed by said converting means; pitch indicating means for indicating a pitch which belongs to any one of the plurality of groups of pitches; pitch determining means for determining a whether the pitch indicated by said pitch indicating means belongs to the group of pitches selected and indicated by said group selecting means; conversion result reading means for reading the result of the conversion performed by said converting means for the pitch indicated by said pitch indicating means when the pitch indicated by said pitch indicating means belongs to the group selected and indicated by said group selecting means; and group selecting control means for controlling said group selecting means to select and indicate a group of pitches which contains the pitch indicated by said pitch indicating means when the pitch indicated by said pitch indicating means belong to a group other than the group selected and indicated by said group selecting means.
Claim 2
Dependent Claim 280 words
A pitch changing device comprising: conversion content generating means for generating a content of a conversion required for attaining a sound having a pitch which belongs to one of a plurality of groups of pitches, a frequency interval between each pair of adjacent pitches of each group being different among said plurality of groups of pitches; group selecting means for selecting and indicating one group of said plurality of groups of pitches; converting means for performing a conversion in accordance with the content of the conversion, which is required for generating a sound having a pitch and which belongs to the group selected and indicated by said group selecting means, from said conversion content generating means; conversion result storing means for storing a result of the conversion performed by said converting means; pitch indicating means for indicating a pitch which belongs to any one of the plurality of groups of pitches; pitch determining means for determining a whether the pitch indicated by said pitch indicating means belongs to the group of pitches selected and indicated by said group selecting means; conversion result reading means for reading the result of the conversion performed by said converting means for the pitch indicated by said pitch indicating means when the pitch indicated by said pitch indicating means belongs to the group selected and indicated by said group selecting means; and group selecting control means for controlling said group selecting means to select and indicate a group of pitches which contains the pitch indicated by said pitch indicating means when the pitch indicated by said pitch indicating means belong to a group other than the group selected and indicated by said group selecting means.
Claim 3
Dependent Claim 55 words
The pitch changing device of claim 1, further comprising: change indicating means for indicating a uniform change of each pitch of said group selected and indicated by a constant quantity thereof; and operating result modifying means for modifying the result of the operation in accordance with the uniform change indicated by said change indicating means.
Claim 4
Dependent Claim 19 words
The pitch changing device of claim 1, wherein said selected and indicated group of pitches is an equal temperament.
Claim 5
Dependent Claim 19 words
The pitch changing device of claim 1, wherein said selected and indicated group of pitches is a pure temperament.
Claim 6
Dependent Claim 19 words
The pitch changing device of claim 1, wherein said selected and indicated group of pitches is a Pythagoras temperament.
Claim 7
Dependent Claim 19 words
The pitch changing device of claim 1, wherein said selected and indicated group of pitches is a meantone temperament.
Claim 8
Dependent Claim 25 words
The pitch changing device of claim 1, wherein said selected and indicated group of pitches is a temperament used for the tuning of a piano.
Claim 9
Dependent Claim 293 words
A pitch changing device comprising: operation content storing means for storing a content of an operation required for attaining a sound having a pitch which belongs to one of a plurality of groups of pitches, a frequency interval between each pair of adjacent pitches of each group being different among said plurality of groups of pitches; group selecting means for selecting and indicating one group of said plurality of groups of pitches; operation content reading means for reading the content of the operation, which is required for generating a sound having a pitch of said group selected and indicated by said group selecting means, from said operation content storing means; operating means for performing the operation in accordance with the contents of the operation read from said operation content reading means; operation result storing means for storing the result of the operation performed by said operating means; pitch indicating means for indicating a pitch which belongs to any one of the plurality of groups of pitches; pitch determining means for determining whether the pitch indicated by said pitch indicating means belongs to the group of pitches selected and indicated by said group selecting means; operation result means for reading the result of the operation performed by said operating means for the pitch indicated by said pitch indicating means when the pitch indicated by said pitch indicating means belongs to the group selected and indicated by said group selecting means; and group selecting control means for controlling said group selecting means to select and indicate a group of pitches which contains the pitch indicated by said pitch indicating means when the pitch indicated by said pitch indicating means belongs to a group other then the group selected and indicated by said group selecting means.
Claim 10
Dependent Claim 293 words
A pitch changing device comprising: operation content storing means for storing a content of an operation required for attaining a sound having a pitch which belongs to one of a plurality of groups of pitches, a frequency interval between each pair of adjacent pitches of each group being different among said plurality of groups of pitches; group selecting means for selecting and indicating one group of said plurality of groups of pitches; operation content reading means for reading the content of the operation, which is required for generating a sound having a pitch of said group selected and indicated by said group selecting means, from said operation content storing means; operating means for performing the operation in accordance with the contents of the operation read from said operation content reading means; operation result storing means for storing the result of the operation performed by said operating means; pitch indicating means for indicating a pitch which belongs to any one of the plurality of groups of pitches; pitch determining means for determining whether the pitch indicated by said pitch indicating means belongs to the group of pitches selected and indicated by said group selecting means; operation result means for reading the result of the operation performed by said operating means for the pitch indicated by said pitch indicating means when the pitch indicated by said pitch indicating means belongs to the group selected and indicated by said group selecting means; and group selecting control means for controlling said group selecting means to select and indicate a group of pitches which contains the pitch indicated by said pitch indicating means when the pitch indicated by said pitch indicating means belongs to a group other then the group selected and indicated by said group selecting means.
Claim 11
Dependent Claim 56 words
A tone pitch changing device as set forth in claim 8, further comprising: a change indicating means for indicating a uniform change of each pitch of said group by a constant quantity thereof; and a operation result modifying means for modifying the result of the operation in accordance with the indication by said change indicating means.
Claim 12
Dependent Claim 20 words
A tone pitch changing device as set forth in claim 8, wherein said group of pitches is a equal temperament.
Claim 13
Dependent Claim 20 words
A tone pitch changing device as set forth in claim 8, wherein said group of pitches is a pure temperament.
Claim 14
Dependent Claim 20 words
A tone pitch changing device as set forth in claim 8, wherein said group of pitches is a Pythagoras temperament.
Claim 15
Dependent Claim 20 words
A tone pitch changing device as set forth in claim 8, wherein said group of pitches is a meantone temperament.
Claim 16
Dependent Claim 26 words
A tone pitch changing device as set forth in claim 8, wherein said group of pitches is a temperament used for the tuning of a piano.

References Cited (Backward Citations)

US4238985A Cited
US4503745A Cited
US4635517A Cited
US4724736A Cited
US4796509A Cited
US4947724A Cited
US4957032A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-06-02 1995-12-02 1996-06-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-06-02 1999-12-02 2000-06-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-06-02 2003-12-02 2004-06-02 $7700.00 Window Closed / Lapsed

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