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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorKazunori Watanabe
Estimating the term…
A portable paging telephone system comprises a mobile telephone terminal device 4 and a base station 6 which form a speech path with a mobile station such as an automobile telephone set or a portable telephone set, as well as a wireless paging terminal device 5 connected to a mobile telephone exchange 3 and a wireless transmission device 7 connected to the wireless paging terminal device are provided. On the other hand, a wireless paging receiver is provided in the portable telephone set. When the portable telephone set is to be called, the wireless paging receiver is paged, through the wireless transmission device, by a paging signal from the wireless paging terminal device. The portable paging telephone system provided a sufficient communication distance in a stand-by mode, reduces a power consumption and permits a compact and long-time-use portable telephone set.
A portable paging telephone system for use with portable telephone sets each having a wireless paging receiver including a message memory for recording a paging message, said system comprising:
A method for forming a wireless speech path between a calling terminal station and a portable paging telephone set through a paging telephone system, said portable paging telephone set having a first memory, a wireless paging receiver with a separate antenna and inform means for informing reception of a message, said paging telephone system having a mobile telephone exchange, at least one paging terminal device, at least one wireless base station, a second memory and at least one wireless transmission device, the method comprising the steps of:
A portable paging telephone system comprising:
Dependencies are inferred from the claim text.
No related US applications are recorded in the indexed filing history.
This application relates to U.S. Ser. No. 07/952,253 (pending) entitled "PORTABLE PAGING TELEPHONE SET" being filed by Kazunori Watanabe and assigned to the present assignee, based on Japanese Application No. 3-261773 filed on Oct. 9, 1991 and the content of which is incorporated herein by reference.
1. Field of the Invention
The present invention relates to a portable paging telephone system for communicating with a portable telephone set.
FIG. 1 shows a block diagram of an embodiment of a portable paging telephone system of the present invention, and
FIG. 2 shows a more detailed block diagram thereof.
Referring to FIG. 1, numeral 1 denotes a telephone set of a sender or a calling terminal station which is a stationary terminal station, numeral 2 denotes an end office which accommodates a plurality of stationary terminal stations, numeral 3 denotes a mobile telephone exchange connected to the end office, numeral 4 denotes a mobile telephone terminal device connected to the mobile telephone exchange, numeral 5 denotes a wireless paging terminal device connected to the mobile telephone exchange, numeral 6 denotes a wireless base station of the mobile telephone set for wireless-communicating with a portable telephone set, numeral 7 denotes a wireless paging transmission station connected to the wireless paging terminal device 5, and numeral 4b denotes an interface between the mobile telephone set and the wireless paging terminal device.
FIG. 2 shows a more detailed block diagram of FIG. 1. In FIG. 2, numeral 4a denotes a mobile telephone connecting device, numeral 4c denotes a switch for switching telephone lines, numeral 5a denotes a paging signal device for generating a paging signal to be sent to the wireless paging receiver, numeral b denotes a memory for storing a portable telephone number, numeral 5c denotes a memory for storing a sending station number which has paged the portable telephone set, numeral 5d denotes an announcing device for inquiring the sending station number from the wireless paging terminal device 5, and numeral 5e denotes a transfer device of signals from memory 5b and memory 5c to devices 5d and 4b; these signals indicate various numbers such as the portable telephone number to be paged, the sending station number and a reference number. A temporary memory (not shown) for storing those numbers is provided in the interface 4b and they are utilized for the collation of an ID number of the portable telephone set which responded to the wireless paging, the sending station number and the reference number. Numerals 71 and 72 denote wireless transmission stations for wireless paging, numerals 7a and 7b denote service areas of those transmission stations and numerals 61 to 66 denote base station wireless devices for the mobile telephone set such as the automobile telephone set and the portable telephone set. The Japanese mobile telephone system uses of a paging channel (PCH) for paging the mobile telephone, an access channel (ACH) for accepting a call from the mobile telephone set, and a plurality of speech channels (SCH). The U.S. cellular mobile telephone system uses a control channel (CCH) for accepting the paging and the mobile call and identifying a speech channel, and a plurality of speech channels (SCH). The service area 7a of the transmission device 71 which pages the wireless paging receiver and sends a message covers a plurality of areas 6a, 6b and 6c of the mobile telephone base stations 61, 62 and 63.
Referring to FIG. 2, an operation of the portable paging telephone system of the present invention is explained. It is now assumed that a phone number of the portable paging telephone set sent from the calling telephone set 1 is 03-6##-***** where "03" is an area code, "6" plus two digits following the "03" indicate the call to the portable paging telephone set and a system code, and the following five digits indicate the ID number of the portable paging telephone set. Hundreds of thousands of mobile telephone sets may be registered in one system.
Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices: terminal devices
With bell or annunciator systems: paging systems
Managed by the network, e.g. network or access point is leader and terminal is follower: using a pre-established activity schedule, e.g. traffic…
Using monitoring of external events, e.g. the presence of a signal: where the received signal is a wanted signal
Term ended 28 Sep 2012 (estimated)
USPTO file history isn’t available for this patent, so only indexed dates are shown.