Microcomputer with function to output sound effects
AssigneeSharp Kabushiki Kaisha
InventorRyuichi Ogawa
Life of this patent
Estimating the term…
Abstract
A microcomputer with a sound effect output function, comprising a register 24 for temporarily storing a parameter specifying a sound effect to be output, a sound effect generating block 26 for outputting a signal representing a sound effect according a parameter supplied from the register 24, an output pattern setting register 25 for temporarily storing a repetition pattern of a sound effect signal supplied by the sound effect generating block 26, and an output control block 28 for outputting the sound effect signal, supplied from the sound effect generating block 26, according to the repetition pattern supplied from the output pattern setting register 25.
Claims19
A microcomputer having a sound effect output function, comprising:
- register means for temporarily storing a parameter specifying a repetition unit of a sound effect to be output;
- sound effect generating means for generating repeatedly a signal representing a repetition unit of a sound effect according to a parameter applied by said register means;
- output pattern setting means for temporarily storing a repetition pattern of said repetition unit signal supplied from said sound effect generating means, said repetition pattern being represented by data of a plurality of bits, each bit indicating whether or not said repetition unit signal is to be output;
- shift register means for shifting repetition pattern data by one bit responsive to respective one generation of said repetition unit signal and sequentially outputting bit data of said repetition pattern;
- and
- output control means for outputting said repetition unit signal, supplied from said sound effect generating means, according to output bit data supplied from said shift register means.
A microcomputer having a sound effect output function, comprising:
- a CPU;
- memory means, connected to said CPU for storing a parameter specifying a repetition unit of a sound effect to be output and a repetition pattern of said sound effect, said repetition pattern being represented by data of a plurality of bits, each bit indicating whether or not said repetition unit of a sound effect is to be output;
- register means, connected to said CPU, for temporarily storing a parameter specifying a repetition unit of a sound effect to be output, stored in said memory;
- sound effect generating means, connected to said register means, for repeatedly generating a repetition unit signal of a sound effect according to a parameter supplied from said register means;
- output pattern setting means, connected to said CPU and said sound effect generating means, for temporarily storing a repetition pattern, stored in said memory means, of a repetition unit signal output from said sound effect generating means;
- a shift register, connected to said output pattern setting means, for shifting said repetition pattern, supplied from said output pattern setting means, by one bit in response to respective one generation of said repetition unit signal to sequentially output bit data of said repetition pattern;
- and
- output control means for outputting a repetition pattern signal output from said sound effect generating means according to output bit data supplied from said shift register.
Dependencies are inferred from the claim text.