JPH0485388U

JPH0485388U -

Info

Publication number: JPH0485388U
Application number: JP12745490U
Authority: JP
Priority date: 1990-11-29
Filing date: 1990-11-29
Publication date: 1992-07-24
Anticipated expiration: 2005-11-29
Also published as: JP2530744Y2

Description

[Brief explanation of the drawing]

第１図は本考案に係る一実施例のシステム構成
図、第２図は鍵盤部の外観図、第３図ａ〜ｆは一
実施例におけるワーキングＲＡＭの主要な内部構
成図、第４図はＣＰＵのゼネラルフローチヤート
、第５図はＡＮＹＫＥＹモード処理の詳細を示
すフローチヤート、第６図は一鍵分処理の詳細を
示すフローチヤート、第７図は鍵の押鍵・離鍵の
操作タイミングとキーオンレジスタＫｎにセツト
される鍵番号との関係を示す図である。１……ＣＰＵ、２……プログラムＲＯＭ、３…
…演奏データメモリ、４……鍵盤部、５……押鍵
検出回路、６……スイツチ部、７……スイツチ検
出回路、８……ワーキングＲＡＭ、９……楽音発
生回路、１０……Ｄ／Ａ変換器（デジタル／アナ
ログ変換器）、１１……アンプ、１２……スピー
カ。 Fig. 1 is a system configuration diagram of one embodiment of the present invention, Fig. 2 is an external view of the keyboard section, Figs. 3 a to f are main internal configuration diagrams of the working RAM in one embodiment, and Fig. 4 is General flowchart of the CPU, Figure 5 is a flowchart showing details of ANY KEY mode processing, Figure 6 is a flowchart showing details of single key processing, Figure 7 is key press/release operation timing. FIG. 3 is a diagram showing the relationship between the key number and the key number set in the key-on register Kn. 1...CPU, 2...Program ROM, 3...
... Performance data memory, 4 ... Keyboard section, 5 ... Key press detection circuit, 6 ... Switch section, 7 ... Switch detection circuit, 8 ... Working RAM, 9 ... Musical tone generation circuit, 10 ... D/ A converter (digital/analog converter), 11...amplifier, 12...speaker.

Claims

[Scope of Claim for Utility Model Registration] 1. A plurality of pitch specifying means provided for specifying pitches, and pitch information storage means for storing pitch information indicating the pitch of each melody note constituting a melody. a readout means for sequentially reading out the pitch information from the pitch information storage means; a pronunciation processing means for performing pronunciation processing based on the pitch information read by the readout means; and a plurality of pitches. a first instruction for instructing the pronunciation processing means to perform pronunciation processing each time the designation means is operated;
a second control means that instructs the sound generation processing means to perform sound generation processing each time the plurality of pitch specifying means are operated from a state where they are not operated at all; and the first control means. An electronic musical instrument comprising: a selection means for selectively selecting either to control the sound generation processing means or to control the sound generation processing means by the second control means. 2. The electronic musical instrument according to claim 1, wherein the plurality of pitch designating means comprises a plurality of keys.