Dynamic information storage or retrieval – Combined independent audio systems – Changeover between audio systems
Patent
1979-08-09
1981-11-10
Cardillo, Jr., Raymond F.
Dynamic information storage or retrieval
Combined independent audio systems
Changeover between audio systems
369 4, 84464R, G11B 300, G11B 2700
Patent
active
043002250
ABSTRACT:
This invention relates to a system that will allow plural turntable recorded music sources that can have unique basic bass rhythm beat patterns played consecutively with the basic bass rhythm patterns synchronized such that a listener of the music senses that the bass beat rhythm patterns appear uninterrupted from one recorded musical piece to the next. Each of the music sources have means to vary the basic rhythm rate. The system included in combination a first and a second input signal representative of the sources of recorded music. There are provided first and second bass beat rhythm detectors respectively electrically coupled to the plural sources of recorded music to receive the first and the second input signals and provide a first and a second output signal which contain exclusively the bass beat rhythm of the respective sources. A signal emitting coincident beat signal detector is electrically coupled to the first and the second bass beat rhythm detectors to receive the first and the second output signals. The coincident beat signal detector emitting a signal whenever the bass beat rhythm patterns are coincident. The presence of this emitted signal allows an operator of the system to phase one of the recorded musical sources out and continue to play the other source of recorded music without missing a basic bass beat.
REFERENCES:
patent: 1775019 (1930-09-01), Cook
patent: 1834886 (1931-12-01), Barton
patent: 1931035 (1933-10-01), Reynolds
patent: 1989963 (1935-02-01), Baker
patent: 2416353 (1947-02-01), Shipman
patent: 2617893 (1952-11-01), Sinnett et al.
patent: 3919915 (1975-11-01), Isbell
patent: 4028985 (1977-06-01), Merritt
patent: 4193257 (1980-03-01), Watkins
Heathkit Catalog 816, pp. 68-69, 76, Summer 1977. _
Cardillo, Jr. Raymond F.
Williamson Harold A.
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