Sound-scale generation device and time-announcing clock

Details Sound-scale generation device and time-announcing clock Sound-scale generation device and time-announcing clock

2005-11-01

2005-11-01

Hirshfeld, Andrew H. (Department: 2854)

Horology: time measuring systems or devices

Signalling means

Musical

C368S273000, C368S245000

Reexamination Certificate

active

06961288

ABSTRACT:
A sound-scale generation device and time-announcing clock eliminating the unpleasantness when a sound of a dissonant interval or imperfect consonant interval is generated, provided with a clock circuit generating a sound generation instruction signal at a fixed time, a frequency divider serving as a sound generator able to generate at least a 12-sounds scale, an amplifier, a speaker, a sequential switching circuit linking the 12-sounds of the 12-sounds scale and times corresponding to the fixed time and controlling the sound generator so as to generate a basic sound of one sound of the 12-sounds scale, then generate scale-forming-sounds corresponding to a time every time receiving a sound generation instruction signal, and a harmonic-sound adder controlling the sound generator so as to generate a sound by superposing at least one of the harmonic-sound forming sounds able to form a harmonic-sound including the scale-forming-sound when the sequential switching circuit makes the sound generator generate at least a scale-forming-sound of a dissonant interval and/or imperfect consonant interval with respect to the basic sound.

REFERENCES:
patent: 2401199 (1946-05-01), Talbot
patent: 4457631 (1984-07-01), Takebe
patent: 4487099 (1984-12-01), Ebihara
patent: 4575832 (1986-03-01), Takebe
patent: 4699518 (1987-10-01), Tanabe
patent: 6898153 (2005-05-01), Della Rossa
patent: 3-11275 (1991-02-01), None
Tamura N, Outline of Music, Ongakunotomosha, May 31, 1956 pp. 122 to 123.

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