Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
1998-02-25
2001-04-03
Eisenzopf, Reinhard (Department: 2682)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S573000, C455S572000
Reexamination Certificate
active
06212403
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a portable wireless communication device used in the Personal Handy Phone System (PHS) or the like.
2. Description of the Related Art
It is well-known that portable wireless communication devices perform data communications through a network. Some of the portable wireless communication devices are capable of being connected to an external data terminal of a personal computer, etc. Such a portable wireless communication device transmits data to and receives data from the external data terminal under the condition of being connected to the external data terminal, and interconnects the external data terminal and the network.
The portable wireless communication device as described above is usually operated by a secondary battery built therein. The secondary battery is charged by being placed on a charger dedicated to the portable wireless communication device.
However, the above-mentioned conventional portable wireless communication device is not adapted to be connected to the external data terminal while placed on the charger. The interconnection between the external data terminal and the network is performed only with an electric power from the built-in secondary battery. Therefore, the interconnection is effected only until the secondary battery is exhausted.
Compared with normal calls, a longer period of time is likely to be spent on, for example, data communications performed during the operation of the external data terminal (personal computer) as in personal computer communications, and data communications requiring a time for collecting information as in the internet.
Therefore, in the case where the interconnection between the external data terminal and the network through the portable wireless communication device is performed only with the electric power from the secondary battery as described above, the data communications may be interrupted due to the exhaustion of the secondary battery, which prevents the data communications from being performed in a normal manner.
Even when assuming the structure in which the portable wireless communication device is capable of being connected to the external data terminal under the condition of being placed on the charger, there is a problem that the peripheral I/O of the portable wireless communication device becomes complicated.
SUMMARY OF THE INVENTION
A portable wireless communication device performing data communications through a network of the present invention includes: a secondary battery; and an interface portion detachably connected to an external data terminal, for transmitting data to and receiving data from the external data terminal and for receiving an electric power from the external data terminal, wherein the portable wireless communication device is operated with at least one of an electric power from the secondary battery and the electric power input from the external data terminal through the interface portion.
In one embodiment of the present invention, the above-mentioned portable wireless communication device includes: a data terminal circuit portion for transmitting data to and receiving data from the external data terminal through the interface portion; and a network circuit portion for transmitting data to and receiving data from the network, the portable wireless communication device interconnecting the external data terminal and the network.
In another embodiment of the present invention, in a case where the electric power input from the external data terminal through the interface portion is excessive, the secondary battery is charged with the excessive electric power.
In another embodiment of the present invention, in a case where the electric power input from the external data terminal through the interface portion is insufficient, the insufficient electric power is compensated for with the electric power from the secondary battery.
In another embodiment of the present invention, the above-mentioned portable wireless communication device includes an external electric power rejecting portion for rejecting the electric power from the external data terminal through the interface portion.
In another embodiment of the present invention, the above-mentioned portable wireless communication device includes an external electric power rejecting portion for rejecting the electric power from the external data terminal through the interface portion and stopping a supply of the electric power to the network circuit portion.
Thus, the invention described herein makes possible the advantage of providing a portable wireless communication device capable of interconnecting an external data terminal and a network for a long period of time without using a charger.
This and other advantages of the present invention will become apparent to those skilled in the art upon reading and understanding the following detailed description with reference to the accompanying figures.
REFERENCES:
patent: 5036532 (1991-07-01), Metroka et al.
patent: 5511240 (1996-04-01), Nishiyama
patent: 5528667 (1996-06-01), Steffensen et al.
patent: 5566226 (1996-10-01), Mizoguchi et al.
patent: 5797089 (1998-08-01), Nguyen
patent: 5870615 (1999-02-01), Bar-On et al.
patent: 5925942 (1999-07-01), Theobald
patent: 0 494 780 (1992-07-01), None
patent: 0 545 088 (1993-06-01), None
patent: 4-72946 (1992-03-01), None
patent: 5-130010 (1993-05-01), None
patent: 8-130773 (1996-05-01), None
patent: 8-237345 (1996-09-01), None
patent: 9-162960 (1997-06-01), None
patent: WO 96/21900 (1996-07-01), None
Eisenzopf Reinhard
Nixon & Vanderhye P.C.
Ramos-Feliciano Eliseo
Sharp Kabushiki Kaisha
LandOfFree
Wireless telephone battery charging while performing data... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wireless telephone battery charging while performing data..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wireless telephone battery charging while performing data... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2493927