GB1392054A - Apparatus for converting a tone of frequency f into a lower tone of frequency xf - Google Patents

Apparatus for converting a tone of frequency f into a lower tone of frequency xf

Info

Publication number
GB1392054A
GB1392054A GB3042672A GB3042672A GB1392054A GB 1392054 A GB1392054 A GB 1392054A GB 3042672 A GB3042672 A GB 3042672A GB 3042672 A GB3042672 A GB 3042672A GB 1392054 A GB1392054 A GB 1392054A
Authority
GB
United Kingdom
Prior art keywords
dividers
frequency
tone
converter
gate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3042672A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1392054A publication Critical patent/GB1392054A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
    • H03K23/64—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
    • H03K23/68—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a base which is a non-integer
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H5/00—Instruments in which the tones are generated by means of electronic generators
    • G10H5/02—Instruments in which the tones are generated by means of electronic generators using generation of basic tones
    • G10H5/06—Instruments in which the tones are generated by means of electronic generators using generation of basic tones tones generated by frequency multiplication or division of a basic tone
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
    • G10H2210/395—Special musical scales, i.e. other than the 12-interval equally tempered scale; Special input devices therefor
    • G10H2210/415—Equally tempered scale, i.e. note tuning scale in which every pair of adjacent notes has an identical frequency ratio equal to 2 to the power 1/n if the scale has n notes per octave
    • G10H2210/435—Huygens scale, i.e. 31 equal intervals per octave, provides near-just major thirds, and provides decent matches for harmonics up to at least 13, despite a slightly less accurate fifth than the standard 12 interval equally tempered scale
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S84/00—Music
    • Y10S84/11—Frequency dividers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)
GB3042672A 1971-07-02 1972-06-29 Apparatus for converting a tone of frequency f into a lower tone of frequency xf Expired GB1392054A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7109138A NL7109138A (enrdf_load_stackoverflow) 1971-07-02 1971-07-02

Publications (1)

Publication Number Publication Date
GB1392054A true GB1392054A (en) 1975-04-23

Family

ID=19813530

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3042672A Expired GB1392054A (en) 1971-07-02 1972-06-29 Apparatus for converting a tone of frequency f into a lower tone of frequency xf

Country Status (12)

Country Link
US (1) US3808345A (enrdf_load_stackoverflow)
JP (1) JPS5235293B1 (enrdf_load_stackoverflow)
AU (1) AU468020B2 (enrdf_load_stackoverflow)
BE (1) BE785746A (enrdf_load_stackoverflow)
CA (1) CA966337A (enrdf_load_stackoverflow)
CH (1) CH563051A5 (enrdf_load_stackoverflow)
DE (1) DE2231083C3 (enrdf_load_stackoverflow)
ES (1) ES404390A1 (enrdf_load_stackoverflow)
FR (1) FR2145218A5 (enrdf_load_stackoverflow)
GB (1) GB1392054A (enrdf_load_stackoverflow)
IT (1) IT956977B (enrdf_load_stackoverflow)
NL (1) NL7109138A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL164149C (nl) * 1973-10-06 1980-11-17 Philips Nv Schakeling voor het transponeren en het vormen van akkoorden.
NL156525B (nl) * 1973-10-31 1978-04-17 Philips Nv Generator voor het opwekken van tonen van een toonladder in elektronische muziekinstrumenten.
US4043240A (en) * 1975-06-23 1977-08-23 Nippon Electric Company, Ltd. Electric instrument comprising a binary counter cleared when counts therein reach integers representative of a melody
JPS5848110B2 (ja) * 1976-12-24 1983-10-26 カシオ計算機株式会社 クロツク数選択装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3236931A (en) * 1960-01-15 1966-02-22 Academy Of Aeronautics Electronic musical instrument
BE671441A (enrdf_load_stackoverflow) * 1964-10-28
NL143713B (nl) * 1967-08-15 1974-10-15 Philips Nv Generator voor het gelijktijdig opwekken van tonen van een in hoofdzaak gelijkzwevende toonladder, alsmede elektronisch muziekinstrument voorzien van een dergelijke generator.
NL142804B (nl) * 1968-02-15 1974-07-15 Philips Nv Generator voor het gelijktijdig opwekken van de tonen van een bij voorkeur nagenoeg gelijkzwevende toonladder, alsmede elektronisch muziekinstrument voorzien van een dergelijke generator.
US3590131A (en) * 1969-02-11 1971-06-29 Robert R Reyers Electronic musical scale generator employing a single master oscillator
US3601518A (en) * 1969-10-06 1971-08-24 Charles M Hill Musical instrument and method employing reference frequency source and controlled period multipliers therefor
US3577084A (en) * 1969-11-03 1971-05-04 Singer General Precision Computer sound generator
JPS5034181B1 (enrdf_load_stackoverflow) * 1969-12-13 1975-11-06
US3702370A (en) * 1971-05-19 1972-11-07 John Ray Hallman Jr Digital tone generator system for electronic organ employing a single master oscillator
US3743756A (en) * 1971-08-12 1973-07-03 Philips Corp Method of producing tones of a preferably substantially equal-tempered scale

Also Published As

Publication number Publication date
DE2231083B2 (de) 1973-10-11
BE785746A (fr) 1973-01-02
CH563051A5 (enrdf_load_stackoverflow) 1975-06-13
DE2231083A1 (de) 1973-01-18
DE2231083C3 (de) 1979-02-15
IT956977B (it) 1973-10-10
ES404390A1 (es) 1975-12-16
AU468020B2 (en) 1975-12-18
FR2145218A5 (enrdf_load_stackoverflow) 1973-02-16
CA966337A (en) 1975-04-22
AU4410272A (en) 1974-01-03
JPS5235293B1 (enrdf_load_stackoverflow) 1977-09-08
US3808345A (en) 1974-04-30
NL7109138A (enrdf_load_stackoverflow) 1973-01-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee