Electricity: battery or capacitor charging or discharging – Cell or battery charger structure – For handheld device
Reexamination Certificate
2001-11-01
2002-12-24
Tso, Edward H. (Department: 2838)
Electricity: battery or capacitor charging or discharging
Cell or battery charger structure
For handheld device
C320S115000
Reexamination Certificate
active
06498458
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a battery charger and, more specifically, to a battery charger and receiver system, which enables the receiver to be used with the battery charger to transmit signal from a wireless signal source to a computer to which the battery charger is connected, or separated from the battery charger for use with a computer to receive signal from a wireless signal source.
Following fast development of computer technology, a variety of peripheral apparatus are created for with a computer. When several computer peripheral apparatus are used and connected to a computer by a respective cable, the cables may be tangled with one another. Further, the cable limits the moving range of the respective peripheral apparatus relative to the computer. In order to eliminate these problems, wireless communication is developed. Various wireless keyboards and mice have been disclosed, and have appeared on the market. There are also known battery chargers adapted for charging the battery of a wireless mouse.
FIG. 1
shows a battery charger
3
′ adapted for use with a notebook computer
1
′ and a wireless mouse
5
′. The wireless mouse
5
′ comprises a charging circuit, a transmitting circuit, and a battery. The battery charger
3
′ comprises a circuit
32
′, a charging chamber
31
′ adapted for receiving the wireless mouse
5
′, charging contacts
33
′ fixedly provided in the charging chamber
31
′ and connected to the circuit
32
′ for output of charging power to the charging circuit of the wireless mouse
5
′, a receiver
2
′ connected to the circuit
32
′ and adapted for receiving signal from the wireless mouse
5
′, and a cable
34
′ extended from the circuit
32
′ and terminating in a USB plug
35
′ adapted for connecting to an electric female connector, for example, a USB socket
11
′ of the notebook computer
1
′. Further, an AC adapter
4
′ is provided for connection to city power supply. The AC adapter
4
′ is adapted for converting AC power supply into the desired DC power supply for the battery charger
3
′, having a cable
41
′ for connection to a power input jack of the battery charger
3
′. This structure of battery charger
3
′ is functional. However, because the receiver
2
′ is built in the battery charger
3
′, it is not detachable. When using the wireless
5
′ with another computer or a computer in another place, the battery charger
3
′ must be disconnected from the notebook computer
1
′ and then installed in the other computer to be used.
SUMMARY OF THE INVENTION
The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a battery charger, and a detachable receiver that can be installed in the battery charger for communication between a wireless mouse and the computer to which the battery charger is connected, or detached from the battery charger for use with another computer.
To achieve these and other objects of the present invention, the battery charger and receiver arrangement comprises a battery charger, the battery charger comprising a charging chamber adapted for charging a wireless signal source, for example, a wireless mouse, wireless joystick, or remote controller, an electric female connector (of USB or PS/2 specification), and an electric plug cable (of USB or PS/2 specification) electrically extended from the electric female connector adapted for connecting to a computer for transmitting signal from the electric female connector to the computer; and a receiver adapted for receiving signal from the wireless signal source to be charged by the battery charger, the receiver having an electric male connector (of USB or PS/2 specification) adapted for connection to the electric female connector (of USB or PS/2 specification) of the battery charger for enabling received signal from the wireless signal source to be charged by the battery charger to be transmitted to the computer to which the electric plug cable is connected.
REFERENCES:
patent: 5945981 (1999-08-01), Paull et al.
patent: 5983073 (1999-11-01), Ditzik
patent: 6255800 (2001-07-01), Bork
patent: 6380714 (2002-04-01), Chou
Rosenberg , Klein & Lee
Tso Edward H.
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