Memory access controller for musical sound generating system

Details Memory access controller for musical sound generating system Memory access controller for musical sound generating system

2008-09-02

2008-09-02

Fletcher, Marlon T (Department: 2837)

Music

Instruments

Electrical musical tone generation

C084S604000, C084S609000, C084S610000, C084S618000

Reexamination Certificate

active

11318313

ABSTRACT:
In an access controller provided for a musical sound signal generating system, a signal generating section operates when a readout of wave data of one block stored in a working memory is completed in a sound channel, for supplying a next waveform request signal to a CPU, which requests a next block of the wave data for the sound channel. First and second buffer memories are connected between a recording medium and the working memory respectively through first and second buses which are independent from each other. A first transmitting section operates when receiving block specifying information from the CPU, which specifies a block to be read next from the recording medium, for transmitting the wave data of the specified block to either of the first or second buffer memory while reading the specified block of the wave data from the recording medium. A second transmitting section operates when the transmitting of the wave data to either of the first or second buffer memory is finished and during a period when the musical sound signal generation system is not accessing the working memory, for transmitting the wave data of the specified block to the working memory from either of the first or second buffer memory, to which the wave data of the specified block has been transmitted by the first transmitting section.

REFERENCES:
patent: 4709611 (1987-12-01), Takagi et al.
patent: 5321198 (1994-06-01), Suzuki et al.
patent: 5463183 (1995-10-01), Konno
patent: 5525748 (1996-06-01), Kuribayashi et al.
patent: 5539145 (1996-07-01), Kuribayashi et al.
patent: 5668334 (1997-09-01), Kuribayashi et al.
patent: 5714704 (1998-02-01), Suzuki et al.
patent: 5770812 (1998-06-01), Kitayama
patent: 6441290 (2002-08-01), Fujita et al.
patent: 2001/0054348 (2001-12-01), Ikeya
patent: 2002/0134217 (2002-09-01), Tamura
patent: 2005/0211070 (2005-09-01), Tamura
patent: 5066777 (1993-03-01), None
patent: 6051776 (1994-02-01), None
patent: 2002/073537 (2002-03-01), None
patent: 2002/366373 (2002-12-01), None
patent: 2003/022248 (2003-01-01), None
patent: 2004/070579 (2004-03-01), None

Affiliated with

Also associated with

Rating

Memory access controller for musical sound generating system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Memory access controller for musical sound generating system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Memory access controller for musical sound generating system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3922575