Envelope generating apparatus

Details Envelope generating apparatus Envelope generating apparatus

1991-04-29

1993-07-20

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84663, G10D 0000

Patent

active

052295346

ABSTRACT:
An envelope generating apparatus comprises a work memory, a buffer memory, an envelope generator, a writing circuit, and an end signal generator. The work memory stores parameters including a target level LV and an envelope speed parameter SP for generating an envelope signal of a predetermined phase. The buffer memory stores parameters including a target level LV and an envelope speed parameter SP for generating an envelope signal of a phase following the predetermined phase. The envelope generator generates an envelope signal based on the parameters stored in the work memory. When the envelope generator completes the generation of the envelope signal of a predetermined phase based on the parameters stored in the work memory, the writing circuit writes the content of the buffer memory into the work memory. When the envelope generator completes the generation of the envelope signal of a predetermined phase based on the parameters stored in the work memory, the end signal generator generates an end signal to request alteration of the content of the buffer memory. Every time the end signal requesting alteration of the content of the buffer memory is generated by the end signal generator, therefore, the content of the buffer memory is changed.

REFERENCES:
patent: Re30906 (1982-04-01), Hiyoshi et al.
patent: 4135424 (1979-01-01), Okamoto
patent: 4178826 (1979-12-01), Hiyoshi et al.
patent: 4185532 (1980-01-01), Hiyoshi et al.
patent: 4373416 (1983-02-01), Endo et al.
patent: 4909120 (1990-03-01), Horiki et al.

Affiliated with

Also associated with

Rating

Envelope generating apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Envelope generating apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Envelope generating apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1761804