Portable telephone apparatus with security function

• US 6,212,410 B1
• Filed: 02/23/1998
• Issued: 04/03/2001
• Est. Priority Date: 02/24/1997
• Status: Expired due to Fees

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Ishida, Takeshi
• Primary Examiner(s): Le, Thanh Cong
• Assistant Examiner(s): ZEWDU, MELESS NMN
• Application Number:
  US09/027,846
• Time in Patent Office: 1,135 Days
• Field of Search: 455/572, 455/573, 455/575, 455/567, 455/410, 361/18, 320/110, 320/106
• US Class Current: 455/572
• CPC Class Codes: G08B 13/1418 Removal detected by failure in electrical connection between the appliance and a control centre, home control panel or a power supply
• CPC Class Codes: H02J 7/00036 Charger exchanging data with battery
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries
• CPC Class Codes: H04M 1/727 Identification code transfer arrangements
• CPC Class Codes: H04W 52/0296 switching to a backup power supply
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A portable telephone apparatus with a security function includes a first detecting and processing circuit 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 the 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. The portable telephone apparatus also includes a second detecting and processing circuit 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 power to the battery unit when the identification information of the battery unit and the identification information of the battery charger match. When identification information of the portable telephone main unit, the battery unit, and the battery charger match, the power to the portable telephone main unit is turned on and thereby the battery unit is charged.

Claims

1. A portable telephone apparatus with a security function, the portable telephone apparatus including a portable telephone main unit, a battery unit, and a battery charger, the portable telephone apparatus comprising:

first detecting and processing means for determining whether or not identification information of the portable telephone main unit and identification information of the battery unit that supplies power to the portable telephone main unit match and for supplying the power from the battery unit 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

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 the battery charger that charges the battery unit match and for causing the battery charger to supply power to the battery unit when the identification information of the battery unit and the identification information of the battery charger match.

2. The portable telephone apparatus as set forth in claim 1,

wherein the match of the identification information is the match of designated numbers stored in respective storing memories of the portable telephone main unit, the battery charger, and the battery unit.

3. A portable telephone apparatus comprising:

a portable telephone main unit;

a battery charger and

a rechargeable battery unit,

the portable telephone main unit, the battery charger, and the battery unit are structured as a discrete set and each includes identification information which is unique to that particular discrete set,

means for allowing the battery unit to supply a charging current to the portable telephone main unit or 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.

4. The portable telephone apparatus as set forth in claim 3,

wherein the match of the identification information is the match of designated numbers stored in respective storing memories of the portable telephone main unit, the battery charger, and the battery unit.

5. A portable telephone apparatus comprising

a portable telephone main unit;

a battery unit;

the battery unit having a rechargeable battery as a power supple of the portable telephone main unit and

a battery charger, the battery charger for charging the battery,

the portable telephone main unit, the battery unit, and the battery charger being structured as a discrete set and having first, second, and third designated identification numbers, respectively, that are the same within the set, wherein the designated identification numbers differ from the designated identification numbers of any other set of corresponding portable telephone main units, battery units and battery chargers,

wherein the portable telephone main unit comprises;

a storing memory A for storing the first designated identification number;

a battery unit detecting circuit A for detecting whether or not the battery unit has been mounted;

a comparing circuit A for sending a request for the second designated identification number to the battery unit and for comparing the second designated identification number received from the battery unit and the first designated identification number stored in said storing memory A;

an OR circuit A for performing an OR operation between a control signal received from said comparing circuit A and a control signal received from said battery unit detecting circuit A;

a start signal sending circuit A for sending to the battery unit a start signal that causes the battery unit to start supplying power when the second designated identification number of the battery unit and the first designated identification number of said storing memory A match;

a battery terminal block for receiving power from the battery unit and for exchanging data with the battery unit as an interface (I/F);

a backup battery for causing said battery unit detecting circuit A, said storing memory A, said start signal sending circuit A, said comparing circuit A, said OR circuit A, and said battery terminal block to operate even if power is not supplied to the portable telephone main unit; and

a switch A for turning on and off the power supplied from said backup battery.

6. The portable telephone apparatus as set forth in claim 5,

wherein the battery unit is disposed in the portable telephone main unit.

7. The portable telephone apparatus as set forth in claim 5,

wherein the battery charger is disposed in the portable telephone main unit.

16. The portable telephone apparatus as set forth in claim 5,

wherein the portable telephone main unit and the battery charger have respective gate arrays, CPUs, and ROMs and

wherein the CPUs operate corresponding to programs stored in the respective ROMs.

8. A portable telephone apparatus comprising:

a portable telephone main unit;

a battery unit;

the battery unit having a rechargeable battery as a power supply of the portable telephone main unit and

a battery charger, the battery charger for charging the battery,

the portable telephone main unit, the battery unit, and the battery charger being structured as a discrete set and having first, second, and third designated identification numbers, respectively, that are the same within the set, the designated identification numbers differ from the designated identification numbers of any other set of corresponding portable telephone main units, battery units, and battery chargers,

wherein the battery unit comprises;

the rechargeable battery for storing electrical charge to be supplied as power to the portable telephone main unit;

a storing memory B for storing the second designated identification number;

a main unit detecting circuit for detecting whether or not the battery unit has been connected to the portable telephone main unit or the battery charger;

a designated identification number sending circuit for sending the second designated identification number to the portable telephone main unit;

a switch B for closing a power line to the portable telephone main unit in response to a signal received from a start signal sending circuit A of the portable telephone main unit when the second designated identification number and the first designated identification number match;

an OR circuit B for performing an OR operation between the signal received from the start signal sending circuit A of the portable telephone main unit and a control signal received from said main unit detecting circuit;

a power supply terminal block for supplying power to the portable telephone main unit and for exchanging data with the portable telephone main unit as an I/F;

a charging terminal block B, connected in parallel with said power supply terminal block, for charging said secondary battery; and

a stabilizer for stably supplying power for said secondary battery, said storing memory B, said main unit detecting circuit, said designated identification number sending circuit, said switch B, said OR circuit, said power supply terminal block, and said charging terminal block.

9. The portable telephone apparatus as set forth in claim 8,

wherein the battery unit is disposed in the portable telephone main unit.

10. The portable telephone apparatus as set forth in claim 8,

wherein the battery charger has been built in the portable telephone main unit.

11. The portable telephone apparatus as set forth in claim 8,

wherein the portable telephone main unit and the battery charger have respective gate arrays, CPUs, and ROMS, and

wherein the CPUs operate corresponding to programs stored in the respective ROMs.

12. A portable telephone apparatus comprising:

a portable telephone main unit;

a battery unit;

the battery unit having a rechargeable battery as a power supply of the portable telephone main unit and

a battery charger, the battery charger for charging the battery,

the portable telephone main unit, the battery unit, and the battery charger being structured as a discrete set and having first, second, and third designated identification numbers, respectively, that are the same within the set wherein the designated identification numbers are different from the designated identification numbers of any other set of corresponding portable telephone main units, battery units, and battery chargers,

wherein the battery charger comprises;

a storing memory C for storing the third designated identification number;

a battery unit detecting unit C for detecting whether or not the battery unit has been mounted;

a comparing circuit C for sending a send request signal for the second designated identification number to the battery unit and for comparing the second designated identification number received from the battery unit with the third designated identification number stored in said storing memory C;

a start signal sending circuit C for sending to the battery unit a start signal for causing the battery charger to start charging the battery unit when the designated identification numbers match in said comparing circuit C; and

a power line for charging the battery unit and a charging terminal block for exchanging data with the battery unit as an I/F.

13. The portable telephone apparatus as set forth in claim 12,

wherein the battery unit is disposed in the portable telephone main unit.

14. The portable telephone apparatus as set for in claim 12,

wherein the battery charger is disposed in the portable telephone main unit.

15. The portable telephone apparatus as set forth in claim 12,

wherein the portable telephone main unit and the battery charger have respective gate arrays, CPUs, and ROMs, and

wherein the CPUs operate corresponding to programs stored in the respective ROMs.

17. A portable telephone apparatus with a security function, the portable telephone apparatus including a portable telephone main unit, a battery unit, and a battery charger, the portable telephone apparatus comprising:

first detecting and processing means for determining whether or not identification information of the portable telephone main unit and identification information of the battery unit that supplies power to the portable telephone main unit match; and

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 the battery charger that charges the battery unit match.

18. The portable telephone apparatus as set forth in claim 17, further comprising:

first power supplying means 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

second power supplying means for causing the battery charger to supply power to the battery unit when the identification information of the battery unit and the identification information of the battery charger match.