Telecommunications – Radiotelephone system – Programming control
Reexamination Certificate
2002-07-31
2004-07-13
Maung, Nay (Department: 2684)
Telecommunications
Radiotelephone system
Programming control
C455S459000, C455S462000, C455S458000, C370S336000
Reexamination Certificate
active
06763231
ABSTRACT:
TECHNICAL FIELD
The present invention relates to a wireless communication device, a master communication device, a master/slave communication device, and a wireless communication system, and more specifically, to a wireless communication device, a master communication device, a master/slave communication device, and a wireless communication system in which, after control is delegated to one or more slave communication devices from a master communication device, any of the slave communication devices is specified by originating from an unspecified originating telephone apparatus to perform communication between that slave communication device and the originating telephone apparatus through a host station.
BACKGROUND ART
The development of fixed telephones, mobile communication telephones and the like has been remarkable, and it is expected that, in the near future, communication functions using fixed telephone lines or mobile communication telephone lines are added to a considerable number of electronic apparatuses (for example, television sets, various kinds of cameras and the like). Here, when a case is assumed where the communication functions are added to various kinds of electronic apparatuses., if different telephone lines are set for respective ones of the electronic apparatuses, various problems arise such as unregulated creation of IDs such as telephone numbers managed by users and host stations, and bloating of base rates of telephone lines borne by users. It is thus necessary to construct a system in which a plurality of electronic apparatuses can share a common telephone line.
Also, in IMT-2000 which is a next-generation mobile communication system, it is expected that a function referred to as so-called multicall, that is, a function allowing a plurality of mobile communication devices to simultaneously perform communication over a single mobile communication telephone line in a range of communication speeds provided for that telephone line is added. In this case, a system which avoids the aforementioned problems such as the unregulated creation of IDs is also needed.
Specifically, in a mobile communication system, seeing that frequency bands allocated to mobile communication are finite, telephone number resources allocated to individual mobile communication devices are also finite, and if unique IDs are allocated to respective electronic apparatuses, it is expected that the telephone number resources are readily exhausted while unutilized telephone numbers are suddenly increased. Thus, in a next-generation mobile communication system, it is inevitable that telephone numbers are allocated with reluctance to individual mobile communication devices, which may become a factor in increasing a base rate for a single ID.
Conventionally, to use a telephone line common to a plurality of electronic apparatuses, in the case of a fixed telephone line, a line such as an ISDN line through which a plurality of communication processing can be simultaneously processed is installed to construct a local area network (LAN), and a personal computer, a facsimile apparatus and the like having communication functions are connected to the LAN, thereby avoiding the aforementioned problems, for example.
When a telephone line common to a plurality of electronic apparatuses is intended to be used and when each electronic apparatus does not change its location, the construction of a LAN as mentioned above can deal with the case. However, when that electronic apparatus is a portable telephone, a digital camera, a video camera, or another mobile communication device having portability and premised on movement, or when it is installed in a position where the construction of a LAN is relatively difficult even when its location is not changed, it is difficult to deal with the case with a LAN.
In addition, in recent years, data transmission/reception through radio signals among a plurality of electronic apparatuses with Bluetooth (see Nikkei Electronics Jan. 17, 2000, pp.37-44) or the like has been proposed. In this case, however, there is also a problem of a transmission/reception range of radio waves with Bluetooth being limited to within a short range. Furthermore, when a large amount of data is transmitted and received over a mobile communication telephone line, an electronic apparatus such as a portable telephone performing communication with a host station through radio waves over the mobile communication telephone line also performs processing of transmitting data on radio waves to another electronic apparatus through the Bluetooth, so that a problem of power consumption may arise in that portable telephone or the like.
To address such problems, the present applicant has already proposed “Control Delegation System for Telephone Line” (Patent Application 2000-122791). The control delegation system uses a master communication device having a master terminal ID such as a unique telephone number for utilizing a telephone line provided by a host station and one or more slave communication devices for which slave terminal IDs created on the basis of the master terminal ID and recognizable by the host station (host computer) are set and which use those slave terminal ID to utilize the telephone line for the master communication device.
The control delegation system is a new system totally different from a conventional extension telephone in which a base unit and one or more handsets are used and any one of them utilizes the same telephone line, in that the slave communication devices utilize the telephone line using the slave terminal IDs created on the basis of the master terminal ID, that the host computer which received the slave terminal ID performs authentication of the correspondence relationship between that slave terminal ID and the master terminal ID or the like, that the slave communication device can perform originating (originate a call) by itself using the telephone line for the master communication device even when it becomes distant from the master communication device, that the respective terminals can simultaneously perform communication within a range of communication speeds previously allocated by the host computer of the master communication device (applicable to multicall), that it is possible to specify contents of control delegated by the master communication device to the slave communication device (for example, the communication speed to be used, dedicated to transmission, dedicated to reception, or the like), and the like.
According to the control delegation system, since communication functions for using the telephone line based on the ID of the master terminal are added to the plurality of slave communication devices and a state is established in which control for using the telephone line is delegated to the plurality of slave communication devices by a communication means of the master communication device, it is possible to perform processing such as substitute execution of communication, which should be essentially performed by the master communication device, by the slave communication device.
In the control delegation system, for an originating function (originating a call) of the communication functions of the slave communication device to which control has been delegated, each slave communication device uses a slave terminal ID created by, for example, adding a branch number to the telephone number of the master communication device to establish communication within the range of the communication speeds of the master communication device, so that the plurality of slave communication devices can perform originating respectively while using the common telephone line to solve the aforementioned problems.
Specifically, a slave communication device which does not have a unique ID (telephone number or the like) performs originating by using a slave terminal ID (for example, “090-1234-5678-01”) created on the basis of the master terminal ID (for example, “090-1234-5678”) of the master communication device to allow various communications to be performed through the host s
Kiyomatsu Hisanori
Takatori Sunao
Gantt Alan T.
Wenderoth , Lind & Ponack, L.L.P.
Yozan Inc.
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