The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 1984
Filed:
May. 25, 1983
Hideo Onoye, Yamato, JP;
Abstract
A system stores and reads out a musical tone signal. The system comprises a circuit for supplying an input musical tone signal having a frequency versus level characteristic which varies with time, a generator for generating a control signal which undergoes level variation in correspondence with the variation in the characteristic of the input musical tone signal during a storing mode, a circuit supplied with the control signal for producing a frequency signal which varies its frequency according to the level of the control signal, an A/D converter for sampling the input musical tone signal according to the above frequency signal and converting the input musical tone signal into a digital signal, a voltage supplying circuit for supplying a voltage to the generator during a read-out mode, a memory into which the output digital signal of the A/D converter is stored according to the frequency signal during the storing mode and from which the stored digital signal is read out according to the frequency signal during the read-out mode, a D/A converter for converting the digital signal read out from the memory into an analog signal according to the above frequency signal, and a circuit for obtaining the output of the D/A converter as a reproduced musical tone signal. The generator generates the control signal of which frequency lowers with lapse of time.