GB1040999A - Creación de Inventos y Patentes con Inteligencia Artificial

GB1040999A – Improvements in or relating to electrophonic musical instruments
– Google Patents

GB1040999A – Improvements in or relating to electrophonic musical instruments
– Google Patents
Improvements in or relating to electrophonic musical instruments

Info

Publication number
GB1040999A

GB1040999A
GB34781/64A
GB3478164A
GB1040999A
GB 1040999 A
GB1040999 A
GB 1040999A
GB 34781/64 A
GB34781/64 A
GB 34781/64A
GB 3478164 A
GB3478164 A
GB 3478164A
GB 1040999 A
GB1040999 A
GB 1040999A
Authority
GB
United Kingdom
Prior art keywords
frequency
ultrasonic
switches
sampling
units
Prior art date
1964-08-25
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
GB34781/64A
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.)

Individual

Original Assignee
Individual
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.)
1964-08-25
Filing date
1964-08-25
Publication date
1966-09-01

1964-08-25
Application filed by Individual
filed
Critical
Individual

1964-08-25
Priority to GB34781/64A
priority
Critical
patent/GB1040999A/en

1965-08-13
Priority to US479576A
priority
patent/US3446905A/en

1966-09-01
Publication of GB1040999A
publication
Critical
patent/GB1040999A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

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

G10H5/08—Instruments in which the tones are generated by means of electronic generators using generation of basic tones tones generated by heterodyning

Abstract

1,040,999. Electrophonic musical instruments. W. E. ROBERTS. Aug. 10, 1965 [Aug. 25, 1964], No. 34781/64. Heading G5J. An ultrasonic frequency is sampled at such a frequency that the sampling frequency or a multiple thereof differs from the ultrasonic frequency by the required audio frequency. A crystal controlled oscillator XT, Fig. 1, feeds a sampling unit N which also receives pulses from a crystal-controlled oscillator Xs, the output being fed through an amplifier A to a loud-speaker L. Seven ultrasonic » tone » generators T1 … T7, Fig. 2 (not shown), together with two sets of ware-sampling units N1 … N12 and N1<1>… N12<1> enable all the notes of seven octaves to be generated. In an organ, Fig. 3 (not shown), 20 sine wave oscillators H feed ultrasonic frequencies through a coupling unit comprising adding amplifiers with feedback resistor networks Rm and associated switches Sm. When a D.C. voltage is applied to a switch the corresponding frequency passes to an adding unit A1 . . . A7. The outputs from these units are fed over keying switches K11 &c. controlled by the keyboard. The outputs from the keying switches are connected to wave sampling units N1, N1<1> &c. feeding an audio adding circuit M. The key switches are arranged to minimize » key click,» by the use of a block B, Fig. 5 (not shown), of soft rubber, with a coating of conductive material Z which is pressed against contact wires W1, W2 as the block B is pushed down. Small low-frequency variations in pitch may be introduced, Fig. 1, by the use of a lowfrequency generator 104 which is added to the D.C. bias across a voltage-sensitive backbiased P-N junction 103.

GB34781/64A
1964-08-25
1964-08-25
Improvements in or relating to electrophonic musical instruments

Expired

GB1040999A
(en)

Priority Applications (2)

Application Number
Priority Date
Filing Date
Title

GB34781/64A

GB1040999A
(en)

1964-08-25
1964-08-25
Improvements in or relating to electrophonic musical instruments

US479576A

US3446905A
(en)

1964-08-25
1965-08-13
Electrophonic musical instrument

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

GB34781/64A

GB1040999A
(en)

1964-08-25
1964-08-25
Improvements in or relating to electrophonic musical instruments

Publications (1)

Publication Number
Publication Date

GB1040999A
true

GB1040999A
(en)

1966-09-01

Family
ID=10369871
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB34781/64A
Expired

GB1040999A
(en)

1964-08-25
1964-08-25
Improvements in or relating to electrophonic musical instruments

Country Status (2)

Country
Link

US
(1)

US3446905A
(en)

GB
(1)

GB1040999A
(en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4346622A
(en)

1980-05-09
1982-08-31
Ford Motor Company
Four speed transaxle with mid-position transfer drive

US8450593B2
(en)

2003-06-09
2013-05-28
Paul F. Ierymenko
Stringed instrument with active string termination motion control

Family Cites Families (7)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US2142580A
(en)

1933-03-06
1939-01-03
Hammond Instr Co
Electrical musical instrument

US2478973A
(en)

1948-04-05
1949-08-16
Ct Res Lab Inc
Variable wave generator

US2831107A
(en)

1951-07-26
1958-04-15
Electronique & Automatisme Sa
Electric simulators of arbitrary functions

US2697959A
(en)

1951-11-23
1954-12-28
Conn Ltd C G
Apparatus for producing complex waves at a desired frequency

US2848920A
(en)

1955-03-02
1958-08-26
John M Lester
Key contact system for electronic organs

US3079571A
(en)

1957-02-06
1963-02-26
Collins Radio Co
Filter utilizing variable capacitance junction diodes

US3355539A
(en)

1963-09-27
1967-11-28
Baldwin Co D H
Sampling tone generator system for electronic organs

1964

1964-08-25
GB
GB34781/64A
patent/GB1040999A/en
not_active
Expired

1965

1965-08-13
US
US479576A
patent/US3446905A/en
not_active
Expired – Lifetime

Also Published As

Publication number
Publication date

US3446905A
(en)

1969-05-27

Información de contacto