Composite interface apparatus for key telephone system
First Claim
Patent Images
1. A composite interface apparatus for a key telephone system, comprising:
- at least one key telephone unit (KTU);
a main apparatus for connecting the at least one KTU;
a personal computer; and
a multi-module for mutually interfacing a wire-based communication, a wireless communication or a data communication by connecting the main apparatus, the at least one KTU, a mobile telephone and a personal computer to one module, wherein said multi-module includes;
first digital adapter subscriber loop (DASL) integrated circuit (IC) for transmitting and receiving a voice signal and data signal with the main apparatus in an alternate mark inversion (AMI) signal format;
second digital adapter subscriber loop (DASL) integrated circuit (IC) for transmitting and receiving a voice signal and a data signal with the KTU in an alternate mark inversion (AMI) signal format;
a radio frequency (RF) module for transmitting and receiving a high frequency signal with the mobile telephone;
a serial interface for transmitting and receiving a data with the PC;
first and second coder/decoder (CODEC) connected with the first and second DASL IC, respectively;
an analog switch connected with the first and second CODEC and RF module for switching a voice signal; and
a central processing unit (CPU) for searching a header information of a data signal outputted from the first DASL and controlling the analog switch.
2 Assignments
0 Petitions
Accused Products
Abstract
A hybrid interface apparatus for a key telephone system is disclosed, which apparatus is capable of interfacing a data and voice communication between a terminal such as a key telephone, a mobile telephone, a computer, etc. and a key telephone system. The hybrid interface apparatus according to the present invention includes more than at least one key telephone unit, a main apparatus for connecting the key telephones, a personal computer, and a multi-module connected between the main apparatus and a key telephone unit, a mobile telephone and a personal computer for interfacing a wire-based communication, a wireless communication and a data communication.
-
Citations
17 Claims
-
1. A composite interface apparatus for a key telephone system, comprising:
-
at least one key telephone unit (KTU);
a main apparatus for connecting the at least one KTU;
a personal computer; and
a multi-module for mutually interfacing a wire-based communication, a wireless communication or a data communication by connecting the main apparatus, the at least one KTU, a mobile telephone and a personal computer to one module, wherein said multi-module includes;
first digital adapter subscriber loop (DASL) integrated circuit (IC) for transmitting and receiving a voice signal and data signal with the main apparatus in an alternate mark inversion (AMI) signal format;
second digital adapter subscriber loop (DASL) integrated circuit (IC) for transmitting and receiving a voice signal and a data signal with the KTU in an alternate mark inversion (AMI) signal format;
a radio frequency (RF) module for transmitting and receiving a high frequency signal with the mobile telephone;
a serial interface for transmitting and receiving a data with the PC;
first and second coder/decoder (CODEC) connected with the first and second DASL IC, respectively;
an analog switch connected with the first and second CODEC and RF module for switching a voice signal; and
a central processing unit (CPU) for searching a header information of a data signal outputted from the first DASL and controlling the analog switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
a start bit of 4-bit;
a DATA 1 of 8-bit;
a DATA 2 and DATA 3 of 8-bit which are actual data; and
a parity bit of 4-bit for checking errors.
-
-
8. The apparatus of claim 7, wherein said DATA 1 is formed of
a header of 3-bit which represents one among the KTU, mobile telephone and PC; - and
a data of 5-bit which represents a data type.
- and
-
9. The apparatus of claim 1, wherein a data format transmitted from the multi-module to the main apparatus or from the KTU to the multi-module comprises:
-
a start bit of 4-bit;
a DATA 1 of 8-bit;
a DATA 2 of 8-bit which is an actual data; and
a parity bit of 4-bit for checking errors.
-
-
10. The apparatus of claim 9, wherein said DATA 1 is formed of:
-
a header of 3-bit which represents one among the KTU, mobile telephone and PC; and
a data of 5-bit which represents a KTU ID, an ID of the multi-module and a destination of the PC.
-
-
11. A multi function module for a key telephone system, comprising:
-
first digital adapter subscriber loop (DASL) integrated circuit (IC) for transmitting and receiving a voice signal and a data signal with a main apparatus in an alternate mark inversion (AMI) signal format;
second digital adapter subscriber loop (DASL) integrated circuit (IC) for transmitting and receiving a voice signal and a data signal with a key telephone unit (KTU) in an alternate mark inversion (AMI) signal format;
a radio frequency (RF) module for transmitting and receiving a high frequency signal with a mobile telephone;
a serial interface for transmitting and receiving data with a Personal Computer (PC);
first and second coder/decoder (CODEC) connected with the first and second DASL ICs;
an analog switch connected between the first and second CODECs and the RF module for switching a voice signal of the first CODEC to the second CODEC and the RF module and switching the voice signals of the second CODEC and the RF module to the first CODEC; and
a Central Processing Unit (CPU) for searching a header information of the data signal outputted from the first DASL IC, controlling the analog switch, carrying a header information on the data signals which are outputted from the second DASL IC, the RF module, and the serial interface to the first DASL IC. - View Dependent Claims (12, 13, 14, 15, 16)
a start bit of 4-bit;
a DATA 1 of 8-bit;
a DATA 2 and DATA 3 of 8-bit which are an actual data; and
a parity bit of 4-bit for checking errors.
-
-
14. The apparatus of claim 13, wherein said DATA 1 is formed of:
-
a header of 3-bit which represents one among the KTU, the mobile telephone and the PC; and
a data of 5-bit which represents a data type.
-
-
15. The apparatus of claim 11, wherein a data format transmitted from the multi-module to the main apparatus or from the KTU to the multi-module is formed of:
-
a start bit of 4-bit;
a DATA 1 of 8-bit;
a DATA 2 of 8-bit which is an actual data; and
a parity bit of 4-bit for checking errors.
-
-
16. The apparatus of claim 15, wherein said DATA 1 is formed of:
-
a header of 3-bit which represents one among the KTU, the mobile telephone and the PC; and
a data of 5-bit which represents a KTU ID, an ID of a multi-module, and a destination of the PC.
-
-
17. A multi function module for a key telephone system, comprising:
-
first digital adapter subscriber loop (DASL) integrated circuit (IC) for transmitting and receiving a voice signal and a data signal with a main apparatus in a prescribed signal format;
second digital adapter subscriber loop (DASL) integrated circuit (IC) for transmitting and receiving a voice signal and a data signal with a key telephone unit (KTU) in a prescribed signal format;
a radio frequency (RF) module for transmitting and receiving a high frequency signal with a mobile telephone;
an interface for transmitting and receiving data with a Personal Computer (PC);
first and second converters connected with the first and second DASL ICs;
a switch connected between the first and second converters and the RF module for switching a voice signal of the first converter to the second converter and the RF module and switching the voice signals of the second converter and the RF module to the first converter; and
a Central Processing Unit (CPU) for searching a header information of the data signal outputted from the first DASL IC, controlling the switch, carrying a header information on the data signals which are outputted from the second DASL IC, the RF module, and the interface to the first DASL IC.
-
Specification