US3711620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Musical tone signal generator
Assignee: Toshiba Corp
•
Filing: 1971-01-27
•
Granted: 1973-01-16
•
Expires: 1991-01-27
Abstract
Abstract A musical tone signal generator comprising a generator of a modulation signal consisting of a mixture of vibrato signal, first random noise signal and second random noise signal of higher frequency than the former; burst signal generators each for generating a burst signal in synchronization with fundamental tone signals modulated by output from said modulation signal generator; and a mixer for mixing said vibrato signals, random noise signals and burst signals thereby to obtain musical tone signals.
Inventors
- 👤 A Kameoka
- 👤 S Nakamura
- 👤 M Kuriyagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:12
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H2250/00; G10H2250/471; G10H2250/475; Y; Y10; Y10S; Y10S84/00; Y10S84/04; Y10S84/05
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
161 words
A muscial tone generator comprising: a tone signal generator for generating fundamental tone signals, a modulation signal generator for producing modulation signals including a mixture of vibrato signal components, noise components of frequencies of more than 50 Hz and noise components of frequencies of 3 Hz to 8 Hz, which includes: a vibrato oscillator producing the vibrato signal components; a white noise signal generator generating white noise signals; a high pass filter coupled to said white noise generator to pass noise signal components having frequencies of more than 50 Hz; a band pass filter coupled to said white noise generator to pass noise components having frequencies of 3 Hz to 8 Hz; and a mixer coupled to said vibrator oscillator, high pass filter and band pass filter to mix said three signal components there from; and a modulator included in said tone signal generator and coupled to said modulation signal generator to modulate said fundamental tone signal with said modulation signals.
Claim 2
Dependent Claim
161 words
A muscial tone generator comprising: a tone signal generator for generating fundamental tone signals, a modulation signal generator for producing modulation signals including a mixture of vibrato signal components, noise components of frequencies of more than 50 Hz and noise components of frequencies of 3 Hz to 8 Hz, which includes: a vibrato oscillator producing the vibrato signal components; a white noise signal generator generating white noise signals; a high pass filter coupled to said white noise generator to pass noise signal components having frequencies of more than 50 Hz; a band pass filter coupled to said white noise generator to pass noise components having frequencies of 3 Hz to 8 Hz; and a mixer coupled to said vibrator oscillator, high pass filter and band pass filter to mix said three signal components there from; and a modulator included in said tone signal generator and coupled to said modulation signal generator to modulate said fundamental tone signal with said modulation signals.
Claim 3
Dependent Claim
29 words
The musical tone generator according to claim 1 wherein said high pass filter passes noise components having frequencies between 1/2 and 2 (times) those of the fundamental tone signals.
Claim 4
Dependent Claim
43 words
The musical tone generator according to claim 1 further including at least one burst signal generator coupled to the modulated output of said tone signal generator in order to generate a burst signal in synchronization with the modulated signal from said tone generator.
Claim 5
Dependent Claim
61 words
The musical tone generator according to claim 1 further including a plurality of burst signal generators coupled to the modulated output of said tone signal generator to generate respective burst signals in synchronization with the modulated output of said tone signal generator and a mixer coupled to the output of said burst signal generators to mix together respective burst signals therefrom.
References Cited (Backward Citations)
US3004459A
Cited
US3007361A
Cited
US3247308A
Cited
US3197544A
Cited
US3479440A
Cited
US3516318A
Cited
US3598891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |