Electricity: motive power systems – Supplied or controlled by space-transmitted electromagnetic...
Reexamination Certificate
1996-12-30
2002-10-22
Ip, Paul (Department: 1931)
Electricity: motive power systems
Supplied or controlled by space-transmitted electromagnetic...
C318S257000, C455S426100, C361S030000
Reexamination Certificate
active
06469460
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a wireless terminal, and more particularly to a portable wireless terminal in which a vibration embodying circuit is separated from a main set to be built in a battery pack so that a compact and light set is possible.
2. Description of the Related Art
A portable wireless terminal has a silent vibration function in addition to an alert mode and to embody a conventional silent vibration function a vibration embodying circuit is usually built in a main set of the wireless terminal. Since the vibration embodying circuit is attached in a printed circuit board (PCB) in the main set of the portable wireless terminal, space taken by the circuit influences a compact and light terminal. The noise occurring at the vibration embodying circuit attached in the PCB effects a communication function of the terminal and a severe vibration causes damage to a part sensitive to the vibration. Also, it is a problem that a user cannot use the vibration function for a long time when the vibration embodying circuit gets damage.
SUMMARY OF THE INVENTION
To overcome the above problems, it is an object of the present invention to provide a portable wireless terminal in which a vibration embodying circuit is built in a battery pack for supplying power to the terminal by separating the vibration embodying circuit from a printed circuit board of a main set of the terminal, thereby enabling a compact and light set.
It is another object of the present invention to provide a portable wireless phone in which a noise source effecting the performance of the main set by building in the vibration embodying circuit in a battery pack, thereby improving the performance and reducing damage to radio frequency core parts.
Accordingly, to achieve the above objects, there is provided a wireless terminal including a custom integrated circuit for adjusting and applying the voltage of a particular pulse and a power supply for supplying power to operate an internal vibration embodying circuit, the terminal includes: a switching circuit unit for controlling the motor action in the vibration embodying circuit: a current amplification unit for supplying a great current necessary for the driving of the motor; a driving motor unit for performing vibration by driving the vibration embodying circuit; an overcurrent protecting unit for maintaining a stable voltage in the motor when overvoltage is applied to an input and protecting the motor by interrupting said driving motor unit; and a battery pack, connected externally to the power supply, for supplying charges to the power supply unit by mounting the vibration embodying circuit therein.
REFERENCES:
patent: 4066934 (1978-01-01), Waldorf et al.
patent: 4162436 (1979-07-01), Waldorf et al.
patent: 4599548 (1986-07-01), Schultz
patent: 4667121 (1987-05-01), Fay et al.
patent: 5245523 (1993-09-01), Juzswik
patent: 5722071 (1998-02-01), Berg et al.
patent: 5744984 (1998-04-01), Drapac et al.
patent: 0688125 (1995-12-01), None
patent: 2279831 (1995-11-01), None
Bushnell , Esq. Robert E.
Ip Paul
Sam-Sung Electronics Co., Ltd.
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