Patent US4649794A successfully refreshed from Google Patents.
US4649794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Visual metronome
Assignee: Individual
•
Filing: 1985-12-23
•
Granted: 1987-03-17
•
Expires: 2005-12-23
Abstract
Abstract A visual electronic metronome comprises a plurality of LED's arranged in a first V-shaped column and a second column extending downwardly from the top of the V. The LED's are actuated in turn so as to produce the appearance of a block of light moving along the V-shaped column and then down the second column until a leading edge of the block of light reaches the bottom of the column. At that point a strobe light produces a flash indicative of the intended beat. The user can thus observe the approach of the beat and meet it exactly preparing the muscles for playing the instrument according to the visually observed position of the block of light approaching the beat.
Inventors
- 👤 Burrell F. George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:03
CPC Classifications
G; G04; G04F; G04F5/00; G04F5/02; G04F5/025
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
139 words
A visual metronome for observing by a user comprising first light emitting means in the form of an elongate column, means mounting said column for simultaneous viewing of the length of the column by the user, said light emitting means being arranged such that portions of the column are selectively operable to provide an illuminated part of the column and a non-illuminated part of the column divided by a line transverse to the column, a second light emitting means arranged to produce an instantaneous flash visible by the user brighter than said first light emitting means, and a control means arranged such that the portions of said light emitting means are operated to advance said line along the column towards one end thereof and to actuate said second light emitting means simultaneously with said line reaching said one end.
Claim 2
Dependent Claim
139 words
A visual metronome for observing by a user comprising first light emitting means in the form of an elongate column, means mounting said column for simultaneous viewing of the length of the column by the user, said light emitting means being arranged such that portions of the column are selectively operable to provide an illuminated part of the column and a non-illuminated part of the column divided by a line transverse to the column, a second light emitting means arranged to produce an instantaneous flash visible by the user brighter than said first light emitting means, and a control means arranged such that the portions of said light emitting means are operated to advance said line along the column towards one end thereof and to actuate said second light emitting means simultaneously with said line reaching said one end.
Claim 3
Dependent Claim
18 words
The invention according to claim 1 wherein the column is formed by a plurality of separate light sources.
Claim 4
Dependent Claim
50 words
The invention according to claim 1 wherein the control means is arranged to operate the portions so as to define a moving illuminated part of the column having a leading edge and to actuate said second light source simultaneously with said leading edge reaching said one end of the column.
Claim 5
Dependent Claim
38 words
The invention according to claim 1 wherein the control means is arranged to operate the portions so as to define a moving illuminated part of the column having a leading edge, a trailing edge and substantially constant length.
Claim 6
Dependent Claim
58 words
The invention according to claim 1 wherein the control means is arranged to operate said second light emitting means a plurality of times for each operation of said first light emitting means whereby said first can indicate a first beat of a bar of music and said second can indicate the first and/or other beats of the bar.
Claim 7
Dependent Claim
56 words
The invention according to claim 1 wherein the first light emitting means comprises a plurality of LED devices arranged in a line and wherein the control means is arranged to illuminate each in turn of said devices so as to give the appearance of a line of light moving at a constant speed along the column.
Claim 8
Dependent Claim
57 words
The invention according to claim 1 including a further column joining said column at an end thereof opposed to said one end and arranged at an angle thereto, said control means being arranged such that the line moves initially along said further column to said opposed end and subsequently moves along said column to said one end.
Claim 9
Dependent Claim
38 words
The invention according to claim 7 wherein the control means is arranged such that the line moves along said further column to and along said column a plurality of times following which it moves only along said column.
Claim 10
Dependent Claim
40 words
The invention according to claim 7 wherein the further column is V-shaped so that the line goes down a first leg of said V-shape, up a second leg of said V-shape and subsequently down said column to said one end.
Claim 11
Dependent Claim
18 words
The invention according to claim 1 including a tone generator for generating a tone suitable for tuning purposes.
Claim 12
Dependent Claim
17 words
The invention according to claim 1 including stationary reference lights at said one end of said column.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-16 | 1990-09-15 | 1991-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-16 | 1994-09-15 | 1995-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-16 | 1998-09-15 | 1999-03-17 | $7700.00 | Window Closed / Lapsed |