PULSE FREQUENCY DIVIDING CIRCUIT

The n-th and the (n + 1)th stages of a shift register are connected back to its first stage respectively via gates among with either one is conductive at a time, thereby constituting a ring counter of a scale of n at one time and that of a scale of n + 1 at another. A second counter of a scale of m...

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Bibliographic Details
Main Authors UCHIYAMA Y,JA, TOMISAWA N,JA, OKUMURA T,JA
Format Patent
LanguageEnglish
Published 18.06.1974
Subjects
ACOUSTICS
BASIC ELECTRONIC CIRCUITRY
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
ELECTROPHONIC MUSICAL INSTRUMENTS
MUSICAL INSTRUMENTS
PHYSICS
PULSE TECHNIQUE
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:The n-th and the (n + 1)th stages of a shift register are connected back to its first stage respectively via gates among with either one is conductive at a time, thereby constituting a ring counter of a scale of n at one time and that of a scale of n + 1 at another. A second counter of a scale of m counts the cycling number of the ring counter and determines which of the gates is to be conductive for every ring counting cycle. If the ring counter is set x times per m cycles at a scale of n + 1 and the rest of time at a scale of n, the output frequency from the ring counter becomes 1/[n + x/m )] of an input pulse frequency on an average, while the output frequency from the second counter becomes 1/(n.m + x) of the input frequency. Such frequency dividers are available for tone generators of electronic musical instrument.
Bibliography:Application Number: US19720304451