Battery charging apparatus capable of connecting a mobile phone with a wire telephone network and method for enabling the same

• US 20040203481A1
• Filed: 10/11/2002
• Published: 10/14/2004
• Est. Priority Date: 10/11/2002
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Joung-Kyou, Cho, Dong-Jun
• Granted Patent: US 7,065,354 B2
• Time in Patent Office: Days
• US Class Current: 455/74.1
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H04B 1/3883 Arrangements for mounting batteries or battery chargers
• CPC Class Codes: H04M 1/72502 with one base station connected to a single line
• CPC Class Codes: H04M 2250/02 including a Bluetooth interface

Abstract

A battery charging apparatus enables a mobile phone to be used not only for its own use but also as a cordless telephone. The battery charging apparatus includes a telephone section and a Bluetooth section. The telephone section is connected between a public network and the Bluetooth section so as to interface an incoming call from the public network to the combined cordless/mobile phone through the Bluetooth section and to interface a call oriented from the combined cordless/mobile phone to the public network through the Bluetooth section. The Bluetooth section is connected between the telephone section and the combined cordless/mobile phone so as to transmit and receive wireless data.

Claims

1. A battery charging apparatus for charging a battery of a combined cordless/mobile phone, the battery charging apparatus comprising a telephone section and a Bluetooth section, wherein:

the telephone section is connected between a public network and the Bluetooth section so as to interface an incoming call from the public network to the combined cordless/mobile phone through the Bluetooth section and to interface a call oriented from the combined cordless/mobile phone to the public network through the Bluetooth section; and

the Bluetooth section is connected between the telephone section and the combined cordless/mobile phone so as to transmit and receive wireless data.

2. A battery charging apparatus as claimed in claim 1, wherein the telephone section comprises:

a ring signal detection circuit which is connected with a public network and which detects a ring signal of a received call;

an office line connection circuit which interfaces a call command and an audio signal of a telephone; and

a CODEC which is connected between the Bluetooth section and the office line connection circuit so as to convert PCM data into analog voice and vice versa.

3. A battery charging apparatus as claimed in claim 1, wherein the Bluetooth section comprises:

a first control section controlling an operation of the Bluetooth section;

a memory storing a program for controlling the first control section;

a PCM interface circuit connected with the telephone section so as to transmit and receive PCM data;

an RF receiver/transmitter connected with the first control section so as to transmit and receive data through a Bluetooth antenna; and

an antenna connected with the RF receiver/transmitter so as to transmit and receive data through RF wave.

4. A battery charging apparatus as claimed in claim 3, wherein the first control section of the Bluetooth section controls a battery-charging operation of the battery charging apparatus and an operation of the telephone section.

5. A battery charging apparatus as claimed in claim 3, wherein the telephone section comprises:

a second control section controlling an operation of the telephone section;

a memory storing a program for controlling the second control section;

a ring signal detection circuit which is connected with a public network and which detects a ring signal of a received call;

an office line connection circuit which interfaces a call command and an audio signal of a telephone; and

a CODEC which is connected between the Bluetooth section and the office line connection circuit so as to convert PCM data into analog voice and vice versa.

6. A battery charging apparatus as claimed in claim 5, wherein the CODEC of the telephone section and the PCM interface circuit of the Bluetooth section interface voice in a PCM mode.

7. A battery charging apparatus as claimed in claim 5, wherein the first control section of the Bluetooth section and the second control section of the telephone section interface an HCI data packet.

8. A battery charging apparatus as claimed in claim 2, wherein the telephone section further comprises a key input section.

9. A battery charging apparatus as claimed in claim 2, wherein the telephone section further comprises a speaker and a microphone.

10. A method of enabling a mobile phone to be used as a cordless telephone by utilizing a battery charging apparatus, the battery charging apparatus including a Bluetooth section, the battery charging apparatus being connected with a public network through a cable and with a combined cordless/mobile phone by wireless through a Bluetooth communication so as to process calls, the method comprising the steps of:

detecting an incoming call from the public network;

setting a Bluetooth connection between the combined cordless/mobile phone and the battery charging apparatus;

outputting a ring signal to the combined cordless/mobile phone; and

transmitting and receiving voice data through the Bluetooth connection to thereby enable communication through the combined cordless/mobile phone, when there is a response from the combined cordless/mobile phone.

11. A method of enabling a mobile phone to be used as a cordless telephone by utilizing a battery charging apparatus, the battery charging apparatus including a Bluetooth section, the battery charging apparatus being connected with a public network through a cable and with a combined cordless/mobile phone by wireless through a Bluetooth communication so as to process calls, the method comprising the steps of:

detecting a call from the combined cordless/mobile phone to the public network;

setting a Bluetooth connection when there is a call from the combined cordless/mobile phone to the public network;

requesting the call to the public network;

outputting a ring-back tone signal through the combined cordless/mobile phone; and

transmitting and receiving voice data through the Bluetooth connection to thereby enable communication through the combined cordless/mobile phone, when there is a response from the public network.

12. A method of enabling a mobile phone to be used as a cordless telephone by utilizing a combined cordless/mobile phone, the combined cordless/mobile phone being connected with a Bluetooth apparatus by wireless through a Bluetooth communication so as to process calls, the Bluetooth apparatus including a Bluetooth section and being connected with a public network through a cable, the method comprising the steps of:

receiving an incoming call from the Bluetooth apparatus to the public network;

outputting a ring signal for the incoming call; and

transmitting and receiving voice data through a Bluetooth connection to and from the public network, thereby enabling communication through the combined cordless/mobile phone, when there is a response from a user.

13. A method of enabling a mobile phone to be used as a cordless telephone by utilizing a combined cordless/mobile phone, the combined cordless/mobile phone being connected with a Bluetooth apparatus by wireless through a Bluetooth communication so as to process calls, the Bluetooth apparatus including a Bluetooth section and being connected with a public network through a cable, the method comprising the steps of:

transmitting a communication request message to the Bluetooth apparatus when a user makes a phone call;

outputting a ring-back tone signal from the Bluetooth apparatus; and

transmitting and receiving voice data through the Bluetooth connection to thereby enable communication through the combined cordless/mobile phone, when there is a response from the public network.