Main body device, slave device, and program update method
AssigneeSeiko Epson Corporation
InventorYutaka Nishizaki
Life of this patent
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Abstract
An update program is acquired in a main body device from an external device, a generation of noise from a noise generating source that has possibility to generate noise to a communication between the main body device and the slave device is suppressed, and after that, a slave device update program is transferred from the main body device to the slave device in the second communication method (second communication speed) which is faster than the first communication method (first communication speed).
Claims8
A main body device configured to communicate with a slave device, the main body device comprising:
- an acquisition unit configured to acquire an update program that includes at least a slave device update program for a slave control unit that is configured to control the slave device, from an external device;
- and
- a main body control unit configured to control the main body device;
- the main body control unit being configured to suppress a generation of noise from a noise generating source that has a possibility to generate noise to a communication between the main body device and the slave device, and subsequently transmit the slave device update program to the slave control unit in a second communication method that is faster than a first communication method,
- the first communication method being a communication method performed between the main body device and the slave device before the generation of noise is suppressed.
A slave device configured to communicate with a main body device that is configured to acquire an update program from an external device, the slave device comprising:
- a slave control unit configured to control the slave device and execute a program update by using a slave device update program for own device;
- the slave control unit suppressing a generation of noise from a noise generating source that has a possibility to generate noise to a communication between the main body device and the slave device, and subsequently receiving the slave device update program from the main body control unit in a second communication method which is faster than a first communication method, and
- the first communication method being a communication method performed between the main body device and the slave device before the generation of noise is suppressed.
A program update method comprising:
- acquiring an update program, which includes at least a slave device update program for a slave control unit that is configured to control a slave device, in a main body device from an external device;
- suppressing a generation of noise from a noise generating source that has a possibility to generate noise to a communication between the main body device and the slave device in a case where the update program has been acquired;
- and
- transferring the slave device update program to the slave device from the main body device in a second communication method which is faster than a first communication method after the generation of noise from the noise generating source has been suppressed;
- the first communication method being a communication method performed between the main body device and the slave device before the generation of noise is suppressed.
Dependencies are inferred from the claim text.