Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
1998-02-23
2001-04-03
Le, Thanh Cong (Department: 2749)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S573000, C455S574000, C455S575100, C455S410000, C455S572000
Reexamination Certificate
active
06212410
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a portable telephone apparatus of mobile communication type, in particular, to a portable telephone apparatus with a security function for preventing power from being supplied in the event that the apparatus has been stolen.
2. Description of the Related Art
Conventionally, when a portable telephone unit has been mislaid or stolen, it can be freely used by a person who found or stole it unless the owner asks the operator company for the to invalidate the telephone unit. To prevent such a problem, a dial-lock function has been used. The dial-lock function serves to prevent a person other than the owner of the portable telephone unit to make a call. As a related art reference of the dial-lock function, Japanese Patent Examined Publication 64-3414 entitled “Dial-lock Apparatus for Car Telephone unit” has been disclosed. With the dial-lock apparatus according to the related art reference, when the user performs a simple switch operation, the telephone unit enters a dial-lock state in which he or she can receive a call, but can not make a call. The dial-lock state cannot be canceled unless the user enters a predetermined password. When the battery of the telephone unit is dismounted and then mounted, the telephone unit enters the dial-lock state again. Thus, even if the telephone unit is stolen, it can be prevented from being freely used.
In Japanese Patent Laid-Open Publication No. 4-271646, another related art reference has been disclosed. In this related art reference, identification information has been assigned to a pair of a battery charger and a cordless telephone main unit. When another cordless telephone unit is mounted on a particular battery charger, an alarm is generated. When a cordless telephone unit is used, if it does not have a parent-child relation with the particular telephone main unit, the cordless telephone unit is prohibited from being used. However, in this related art reference, the technology by which identification information is assigned to a battery has not been disclosed.
However, a first problem with the above-described related art references is that the user of a portable telephone unit does not always use the dial-lock function.
In other words, to make a call, the user of the portable telephone unit should deactivate the dial-lock function. In addition, after the user has completed the call, he or she sometimes forgets to reactivate the dial-lock function.
A second problem with the above-described related art reference is that the user tends not to use the dial-lock function.
In other words, unless the user carefully reads the manual of the portable telephone unit, he or she does not know how to use the dial-lock function.
A third problem with the related art references is that if the portable telephone unit is stolen in the state in which the dial-lock function has not been turned on, the owner must ask the operator company to invalidate of the registered ID number of the stolen portable telephone unit to prevent the stolen units from being.
In other words, if the portable telephone unit has been stolen and the user is not aware that it was stolen, the thief can freely use it.
SUMMARY OF THE INVENTION
An object of the present invention is to secure a portable telephone unit without the need to activate a security function. Another object of the present invention is to further secure a portable telephone unit with a conventional dial-lock function.
A first aspect of the present invention is a portable telephone apparatus with a security function, comprising a detecting and processing means for determining whether or not identification information of a portable telephone main unit and identification information of a battery unit that supplies power to the portable telephone main unit match and for supplying power to the portable telephone main unit when the identification information of the portable telephone main unit and the identification information of the battery unit match.
A second aspect of the present invention is a portable telephone apparatus with a security function, comprising a detecting and processing means for determining whether or not identification information of a battery unit for use with a portable telephone main unit and identification information of a battery charger that charges the battery unit match and for causing the battery charger to supply the power to battery unit when the identification information of the battery unit and the identification information of the battery charger match.
A third aspect of the present invention is a portable telephone apparatus with a security function, comprising a first detecting and processing means for determining whether or not identification information of a portable telephone main unit and identification information of a battery unit that supplies power to the portable telephone main unit match and for supplying power to the portable telephone main unit when the identification information of the portable telephone main unit and the identification information of the battery unit match, and a second detecting and processing means for determining whether or not identification information of the battery unit for use with the portable telephone main unit and identification information of a battery charger that charges the battery unit match and for causing the battery charger to supply the power to battery unit when the identification information of the battery unit and is the identification information of the battery charger match.
A fourth aspect of the present invention is a portable telephone apparatus with a portable telephone main unit and/or a battery charger, and a rechargeable battery unit having identification information which indicates that the portable telephone main unit and/or the battery charger, and the battery unit are structured as a set, wherein the battery unit has a means for allowing the battery unit to supply a charging current to the portable telephone main unit or for allowing the battery charger to supply a charging current to the battery unit corresponding to a start signal that is received from the portable telephone main unit or the battery charger when the identification information of the portable telephone main unit or the battery charger and the identification information of the battery unit match.
The match of the identification information occurs upon the match of designated numbers stored in respective memories of the portable telephone main unit and/or the battery charger, and the battery unit.
In the portable telephone apparatus with the security function according to the present invention, only when the designated numbers of the portable telephone main unit and the battery unit that supplies power thereto match, power of the portable telephone main unit is turned on. When another battery unit of the same type is mounted to the portable telephone main unit, power to the main unit is not turned on.
In addition, another function is provided used when the battery unit is charged. Unless the designated numbers of the battery unit and the battery charger match, the battery charger is prohibited from charging the battery unit.
In reality, referring to
FIG. 1
, the main unit has a battery unit detecting circuit A (
14
), a storing memory A (
16
), a comparing circuit A (
15
), and a start signal sending circuit A (
17
). The battery unit detecting circuit A (
14
) detects whether or not the battery unit has been mounted. The storing memory A (
16
) stores a designated number. The comparing circuit A (
15
) compares designated numbers. The start signal sending circuit A (
17
) sends a start signal that causes the battery unit to supply power to the main unit.
In addition, the battery unit has a secondary battery (
32
), a main unit detecting circuit (
34
), a storing memory B (
36
), a designated number sending circuit (
35
), and a switch B (
37
). The secondary battery (
32
) is a rechargeable battery and supplies power to the portable telephone main unit. The main uni
Cong Le Thanh
NEC Corporation
Ostrolenk Faber Gerb & Soffen, LLP
Zewdu Meless
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