Abstract: A hermetic compressor includes a hermetic container having a bottom portion in which lubricating oil is stored and an electric motor including a stator and a rotator. The hermetic compressor further includes a drive shaft attached to the rotator and a compression mechanism for compressing refrigerant by using rotation of the drive shaft. The hermetic compressor also includes a rotary pressure increasing mechanism for increasing a pressure of refrigerant gas, the rotary pressure increasing mechanism being arranged on the rotator, and a cylindrical lateral wall for partitioning a space above the electric motor into an outer space and an inner space in a manner that the a cylindrical lateral wall surrounds the rotary pressure increasing mechanism. Finally, the hermetic compressor includes a discharge pipe for allowing the refrigerant to flow out from the inner space into an external circuit that is external to the hermetic container.

Abstract: A hermetic compressor, includes: a hermetic container storing a lubricating oil; an electric motor; a drive shaft; a compression mechanism; a rotary pressure increasing mechanism increasing pressure of refrigerant gas; a cylindrical lateral wall partitioning a space above the electric motor into outer and inner spaces; and a discharge pipe allowing refrigerant to flow out from the inner space into an external circuit. The refrigerant gas discharged from the compression mechanism into the hermetic container is moved from a space below the electric motor up to an upper end of the rotator through rotator vents of the rotator, flows into the rotary pressure increasing mechanism to be increased in pressure, flows into the inner space to increase a pressure in the inner space, and is discharged to an outside through the discharge pipe while suppressing inflow of the refrigerant gas from the outer space to the inner space.

Abstract: A sealed compressor includes a centrifugal impeller above a rotor to synchronously rotate. A refrigerant rises through a rotor air hole, flows in an upper space, and flows out from a discharge pipe. The centrifugal impeller includes an oil separation plate on the rotor, and plural vanes standing on the oil separation plate, and forms inter-vane flow passages between adjacent vanes, and a vane inner flow passage that guides refrigerant from the rotor air hole to inner entrances of the inter-vane flow passages. Outer exits of the inter-vane flow passages are disposed along an entire circumference, and refrigerant increased in pressure while passing through the inter-vane flow passages flows out from the outer exits to the upper space. The oil separation plate closes a short-circuit passage through which the refrigerant directly flows from the vane inner flow passages to the discharge pipe without passing through the inter-vane flow passages.

Abstract: A hermetic compressor, includes a hermetic container having a bottom portion in which lubricating oil is stored; an electric motor including a stator and a rotator; a drive shaft attached to the rotator; a compression mechanism for compressing refrigerant by using rotation of the drive shaft; a rotary pressure increasing mechanism for increasing a pressure of refrigerant gas, the rotary pressure increasing mechanism being arranged on the rotator; a cylindrical lateral wall for partitioning a space above the electric motor into an outer space and an inner space in a manner that the a cylindrical lateral wall surrounds the rotary pressure increasing mechanism; and a discharge pipe for allowing the refrigerant to flow out from the inner space into an external circuit that is external to the hermetic container.

Abstract: A piano keyboard computer includes a piano-type keyboard adjacent to a display screen. The system allows music tutorials, visualizations and other applications. A docking system allows additional devices to be placed on, adjacent to, or near the piano keyboard computer. The additional device then communicates with the piano keyboard computer to add functionality such as additional speakers, controllers, etc. The piano keyboard computer can act as a controller for other devices.

Abstract: A sealed compressor includes a centrifugal impeller above a rotor to synchronously rotate. A refrigerant rises through a rotor air hole, flows in an upper space, and flows out from a discharge pipe. The centrifugal impeller includes an oil separation plate on the rotor, and plural vanes standing on the oil separation plate, and forms inter-vane flow passages between adjacent vanes, and a vane inner flow passage that guides refrigerant from the rotor air hole to inner entrances of the inter-vane flow passages. Outer exits of the inter-vane flow passages are disposed along an entire circumference, and refrigerant increased in pressure while passing through the inter-vane flow passages flows out from the outer exits to the upper space. The oil separation plate closes a short-circuit passage through which the refrigerant directly flows from the vane inner flow passages to the discharge pipe without passing through the inter-vane flow passages.

Abstract: Embodiments generally relate to controlling music variables. In one embodiment, a system includes a processor and a hardware control device that is operable to send one or more control signals to the processor, where the one or more control signals control one or more sound variables. The system also includes a display that displays one or more dials, where the one or more dials are associated with the one or more sound variables, and where the processor causes the one or more dials to change based on the one or more control signals.

Abstract: Embodiments generally relate to controlling music variables. In one embodiment, a method includes determining an initial control position of at least one control member of a hardware control device. The method also includes determining an initial dial position of at least one dial. The method also includes modifying a value of at least one sound variable based on the initial control position, the initial dial position, and movement of the at least one control member.

Abstract: Embodiments generally relate to processing music. In one embodiment, a method includes receiving a layout configuration having nodes. The method also includes receiving an information flow configuration that indicates information flow among the nodes. The method also includes associating devices with the nodes. The method also includes causing information to flow among the devices based on the information flow configuration.

Abstract: A refrigerant compressor includes: an electric motor including a stator and rotor inside a sealed vessel; a compressing mechanism driven by a crank shaft in the rotor; a lower portion oil pool storing in the sealed vessel lubricating oil that lubricates the compressing mechanism; an upper counterweight on an upper end of the rotor. Refrigerant gas compressed by the compressing mechanism is discharged inside the sealed vessel, passes through a gas channel formed on the electric motor, moves from a lower space to an upper space with respect to the electric motor, and is discharged outside the sealed vessel. An oil return flow channel is formed on the upper end of the rotor toward a lower end from a vicinity of a leading end portion of the upper counterweight in a direction of rotation, and oil expressed in a vicinity of the rotor is directed to the oil return flow channel.

Abstract: A piano keyboard computer includes a piano-type keyboard adjacent to a display screen. The system allows music tutorials, visualizations and other applications. A docking system allows additional devices to be placed on, adjacent to, or near the piano keyboard computer. The additional device then communicates with the piano keyboard computer to add functionality such as additional speakers, controllers, etc. The piano keyboard computer can act as a controller for other devices.

Abstract: A refrigerant compressor includes: an electric motor including a stator and rotor inside a sealed vessel; a compressing mechanism driven by a crank shaft in the rotor; a lower portion oil pool storing in the sealed vessel lubricating oil that lubricates the compressing mechanism; an upper counterweight on an upper end of the rotor. Refrigerant gas compressed by the compressing mechanism is discharged inside the sealed vessel, passes through a gas channel formed on the electric motor, moves from a lower space to an upper space with respect to the electric motor, and is discharged outside the sealed vessel. An oil return flow channel is formed on the upper end of the rotor toward a lower end from a vicinity of a leading end portion of the upper counterweight in a direction of rotation, and oil expressed in a vicinity of the rotor is directed to the oil return flow channel.