Wireless LAN system and control method and control program of wireless LAN system
First Claim
1. A wireless LAN system comprising electronic apparatuses in a network, each of the electronic apparatuses comprising, at least, short-range wireless communication means for performing transmission and reception of a radio signal among the respective electronic apparatuses in said network, transmission/reception means of a radio signal for performing communication using a wireless telephone line, and control means for controlling said short-range wireless communication means and said transmission/reception means, one of the respective electronic apparatuses serving as a master communication device and controlling the other respective electronic apparatuses as slave communication devices to share said wireless telephone line among the respective electronic apparatuses, characterized in that the respective transmission/reception means are controlled to switch between a first state in normal times in which the transmission/reception means of said master communication device is turned on and the transmission/reception means of the respective slave communication devices are turned off and a second state at the time of control delegation in which said transmission/reception means of said master communication device is turned off and only the transmission/reception means of any one of the slave communication devices which is a subject of control delegation is turned on, and when a reason of terminating control delegation to any slave communication device occurs in said first state, a terminating control delegation signal for permitting the transmission/reception means of that slave communication device to be turned on is transmitted from said master communication device to that slave communication device through the respective short-range wireless communication means to perform switching to said second state.
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Accused Products
Abstract
A wireless LAN system uses a single wireless telephone line. When a telephone apparatus outside the network originates a call to the LAN, the system allows establishment of wireless telephone communication between that telephone apparatus and a slave communication device. Each transmission/reception device is controlled to switch between a first state in normal times in which a transmission/reception device of a master communication device is turned on and transmission/reception device of respective slave communication devices are turned off and a second state in which the transmission/reception device of the master communication device is turned off and only the transmission/reception device of any one of the slave communication devices is turned on.
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Citations
3 Claims
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1. A wireless LAN system comprising electronic apparatuses in a network, each of the electronic apparatuses comprising, at least, short-range wireless communication means for performing transmission and reception of a radio signal among the respective electronic apparatuses in said network, transmission/reception means of a radio signal for performing communication using a wireless telephone line, and control means for controlling said short-range wireless communication means and said transmission/reception means, one of the respective electronic apparatuses serving as a master communication device and controlling the other respective electronic apparatuses as slave communication devices to share said wireless telephone line among the respective electronic apparatuses, characterized in that the respective transmission/reception means are controlled to switch between a first state in normal times in which the transmission/reception means of said master communication device is turned on and the transmission/reception means of the respective slave communication devices are turned off and a second state at the time of control delegation in which said transmission/reception means of said master communication device is turned off and only the transmission/reception means of any one of the slave communication devices which is a subject of control delegation is turned on, and when a reason of terminating control delegation to any slave communication device occurs in said first state, a terminating control delegation signal for permitting the transmission/reception means of that slave communication device to be turned on is transmitted from said master communication device to that slave communication device through the respective short-range wireless communication means to perform switching to said second state.
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2. A method of controlling a wireless LAN system comprising electronic apparatuses in a network, each of the electronic apparatuses comprising, at least, short-range wireless communication means for performing transmission and reception of a radio signal among the respective electronic apparatuses in said network, and transmission/reception means of a radio signal for performing communication using a wireless telephone line, one of the respective electronic apparatuses serving as a master communication device and controlling the other respective electronic apparatuses as slave communication devices to share said wireless telephone line among the respective electronic apparatuses, characterized in that the respective transmission/reception means are controlled to switch between a first state in normal times in which the transmission/reception means of said master communication device is turned on and the transmission/reception means of the respective slave communication devices are turned off and a second state at the time of control delegation in which said transmission/reception means of said master communication device is turned off and only the transmission/reception means of any one of the slave communication devices which is a subject of control delegation is turned on, and when a reason of terminating control delegation to any slave communication device occurs in said first state, a terminating control delegation signal for permitting the transmission/reception means of that slave communication device to be turned on is transmitted from said master communication device to that slave communication device through the respective short-range wireless communication means to perform switching to said second state.
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3. A control program for a wireless LAN system comprising electronic apparatuses in a network, each of the electronic apparatuses comprising, at least, short-range wireless communication means for performing transmission and reception of a radio signal among the respective electronic apparatuses in said network, transmission/reception means of a radio signal for performing communication using a wireless telephone line, and control means for controlling said short-range wireless communication means and said transmission/reception means, one of the respective electronic apparatuses serving as a master communication device and controlling the other respective electronic apparatuses as slave communication devices to share said wireless telephone line among the respective electronic apparatuses, characterized in that the respective transmission/reception means are controlled to switch between a first state in normal times in which the transmission/reception means of said master communication device is turned on and the transmission/reception means of the respective slave communication devices are turned off and a second state at the time of control delegation in which said transmission/reception means of said master communication device is turned off and only the transmission/reception means of any one of the slave communication devices which is a subject of control delegation is turned on, and when a reason of terminating control delegation to any slave communication device occurs in said first state, a terminating control delegation signal for permitting the transmission/reception means of that slave communication device to be turned on is transmitted from said master communication device to that slave communication device through the respective short-range wireless communication means to perform switching to said second state.
Specification