Method and device for setting speed of data transmission
First Claim
1. A data transmission speed setting device for setting speed at which data is transmitted between an inquiring transmission device and a responding remote device over a digital transmission line, the data transmission speed setting device comprising:
- communicable condition establishing means of the transmission device for establishing a communicable condition between the transmission device and the remote device while sequentially changing a transmission speed of the transmission device;
inquiry command transmission means of the transmission device for transmitting an inquiry command to the remote device at a transmission speed used when the communicable condition is first established between the transmission device and the remote device;
transmission speed capability acquisition means of the transmission device for receiving, from the remote device, a response to the inquiry command and for determining based on the content of the response any transmission speeds common between the remote device and the transmission device; and
transmission speed setting means of the transmission device for setting transmission speed at which transmission between the transmission device and the remote device is to be performed to one of the transmission speeds common between the remote device and the transmission device.
1 Assignment
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Accused Products
Abstract
Transmission, speed at which data is transmitted over a digital transmission line between a transmission device and a remote device, is set by transmitting an inquiry command to the remote device at a predetermined transmission speed; receiving, from the remote device, a response to the inquiry command; determining based on the content of the response any transmission speeds common between the remote device and the transmission device; and setting transmission speed at which transmission between the transmission device and a remote device is to be performed to one of the transmission speeds common between the remote device and the transmission device.
31 Citations
25 Claims
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1. A data transmission speed setting device for setting speed at which data is transmitted between an inquiring transmission device and a responding remote device over a digital transmission line, the data transmission speed setting device comprising:
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communicable condition establishing means of the transmission device for establishing a communicable condition between the transmission device and the remote device while sequentially changing a transmission speed of the transmission device; inquiry command transmission means of the transmission device for transmitting an inquiry command to the remote device at a transmission speed used when the communicable condition is first established between the transmission device and the remote device; transmission speed capability acquisition means of the transmission device for receiving, from the remote device, a response to the inquiry command and for determining based on the content of the response any transmission speeds common between the remote device and the transmission device; and transmission speed setting means of the transmission device for setting transmission speed at which transmission between the transmission device and the remote device is to be performed to one of the transmission speeds common between the remote device and the transmission device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A data transmission speed setting device for setting speed at which data is transmitted between an inquiring transmission device and a responding remote device over a digital transmission line, the data transmission speed setting device comprising:
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inquiry command transmission means of the transmission device for transmitting an inquiry command to the remote device at a predetermined bits per second transmission speed; transmission speed capability acquisition means of the transmission device for receiving, from the remote device, a response to the inquiry command; and transmission speed setting means of the transmission device for setting transmission speed at which transmission between the transmission device and a remote device is to be performed to the predetermined bits per second transmission speed of the inquiry command transmission means. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method for setting speed at which data is transmitted between an inquiring transmission device and a responding remote device over a digital transmission line, the method comprising the steps of:
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establishing a communicable condition between the transmission device and the remote device while sequentially changing a transmission speed of the inquiring transmission device; transmitting an inquiry command from the transmission device to the remote device at a transmission speed used when the communicable condition is first established between the transmission device and the remote device; receiving, from the remote device, a response to the inquiry command; determining based on the content of the response any transmission speeds common between the remote device and the transmission device; and setting transmission speed of the transmission device at which transmission between the transmission device and the remote device is to be performed to one of the transmission speeds common between the remote device and the transmission device. - View Dependent Claims (18, 19, 20, 21)
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22. A method for setting speed at which data is transmitted between an inquiring transmission device and a responding remote device over a digital transmission line, the method comprising the steps of:
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transmitting an inquiry command from the transmission device to the remote device at a predetermined bits per second transmission speed; receiving, from the remote device, a response to the inquiry command; and setting transmission speed of the transmission device at which transmission between the transmission device and a remote device is to be performed to the predetermined bits per second transmission speed. - View Dependent Claims (23, 24, 25)
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Specification