Control Device, Control Method For A Control Device, And Recording Medium
AssigneeSeiko Epson Corporation
InventorAkio Takamoto
Life of this patent
Estimating the term…
Abstract
When a communication port is occupied by a recording control unit, the communication port can be released as needed without causing an error or problem. A communication control unit 16 has a decision unit 44 that determines whether or not the USB port 18 can be released from the recording control unit 42 based on control commands input from the recording control unit 42 when the USB port 18 is occupied by the recording control unit 42 and an access request for the USB port 18 is received from another device, and a releasing unit 45 that releases the USB port 18 from the recording control unit 42 when the decision unit 44 determines that the USB port 18 can be released from the recording control unit 42.
Claims19
A control device comprising:
- at least one recording control unit that generates and outputs a control command for controlling a recording device;
- another recording control unit;
- a communication port to which the recording device is connected and which outputs a control command input from the communication control unit to the recording device;
- and
- a communication control unit that outputs control commands input from the recording control unit and the other recording control unit to the communication port, and includes
- a decision unit that, when the communication port is occupied by the recording control unit and a communication port access request is received from the other recording control unit, determines if the communication port can be released from the recording control unit based on the status of control command input from the recording control unit, and
- a communication port releasing unit that releases the communication port from the recording control unit when the decision unit determines that the communication port can be released from the recording control unit.
A control method for a control device that has
- at least one recording control unit that generates and outputs a control command for controlling a recording device,
- another recording control unit,
- a communication port to which the recording device is connected and which outputs a control command input from the communication control unit to the recording device, and
- a communication control unit that outputs control commands input from the recording control unit and the other recording control unit to the communication port,
- the control method comprising steps of:
- determining by the communication control unit if the communication port can be released from the recording control unit based on the status of control command input from the recording control unit when the communication port is occupied by the recording control unit and a communication port access request is received from the other recording control unit;
- and
- releasing the communication port from the recording control unit by the communication control unit when the decision unit determines that the communication port can be released from the recording control unit.
A recording medium that can be read by a control device and stores a program that is executed by a control unit to control a control device having a communication port to which a recording device can be connected, wherein the program causes the control unit to function as:
- a recording control unit that outputs control commands for controlling the recording device;
- and
- a communication control unit including
- a decision unit that, when a control command input from the recording control unit is output to the communication port and the communication port is occupied by the recording control unit, and a communication port access request is received from another device, determines if the communication port can be released from the recording control unit based on the status of control command input from the recording control unit;
- and
- a communication port releasing unit that releases the communication port from the recording control unit when the decision unit determines that the communication port can be released from the recording control unit.
Dependencies are inferred from the claim text.