Communication terminal device adapted to physical characteristics of telecommunication network and method for adapting communication terminal device to physical characteristic of telecommunication network
First Claim
1. A communication terminal device connectable to a Public Switched Telephone Network (“
- PSTN”
) and capable of processing voice communication signals or facsimile communication signals, wherein the voice communication signals are processed according to information regarding a designated nation, the apparatus comprising;
a main unit including a telephone circuit unit, a memory to store information regarding physical characteristics of voice signals relating to the telephone circuit unit demanded by the designated nation, a controller coupled to the telephone circuit unit and the memory, and a microphone to receive outgoing voice signals,wherein the controller controls the telephone circuit unit so as to change at least one physical characteristic of the outgoing voice signals, according to the information regarding physical characteristics of voice signals relating to the telephone circuit unit demanded by the designated nation, to generate outgoing digital communication signals; and
a telephone network adaptor unit configured to convert outgoing digital communication signals received from the main unit to outgoing analog communication signals, which are output via PSTN.
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Accused Products
Abstract
The communication terminal device includes a handset, a central controller, a telephone network adaptor unit for converting analog signals transmitted/received between telecommunication network and the communication terminal device into digital signals, an interface unit physically isolating the central controller from the telephone network adaptor unit, and transmitting/receiving the converted digital signals between the central controller and the telephone network adaptor unit, and a telephone circuit unit which transmits the voice signals generated by processing the digital signals received from the telephone network adaptor unit to a handset through the interface unit and transmits the digital signals generated by processing the voice signals received from the handset to the telephone network adaptor unit through the interface unit. The telephone network adaptor unit is controlled by the central controller and changes the physical characteristics of the analog signals to be adapted to the physical characteristics of the telecommunication network.
30 Citations
14 Claims
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1. A communication terminal device connectable to a Public Switched Telephone Network (“
- PSTN”
) and capable of processing voice communication signals or facsimile communication signals, wherein the voice communication signals are processed according to information regarding a designated nation, the apparatus comprising;a main unit including a telephone circuit unit, a memory to store information regarding physical characteristics of voice signals relating to the telephone circuit unit demanded by the designated nation, a controller coupled to the telephone circuit unit and the memory, and a microphone to receive outgoing voice signals, wherein the controller controls the telephone circuit unit so as to change at least one physical characteristic of the outgoing voice signals, according to the information regarding physical characteristics of voice signals relating to the telephone circuit unit demanded by the designated nation, to generate outgoing digital communication signals; and a telephone network adaptor unit configured to convert outgoing digital communication signals received from the main unit to outgoing analog communication signals, which are output via PSTN. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- PSTN”
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12. A method for a terminal equipment connectable to a Public Switched Telephone Network (“
- PSTN”
) and capable of processing voice communication signals or facsimile communication signals, wherein voice communication signals processed according to information regarding a designated nation, the method comprising;storing information regarding physical characteristics of voice signals relating to a telephone circuit unit demanded by the designated nation; receiving outgoing voice signals via a microphone; controlling a telephone circuit unit so as to change at least one physical characteristic of the outgoing voice signals, according to the information regarding physical characteristics of voice signals relating to the telephonic circuit unit demanded by the designated nation, to generate outgoing digital communication signals; forwarding the outgoing digital communication signals to a telephone network adaptor unit via an interface unit; using the telephone network adaptor unit to convert outgoing digital communication signals to outgoing analog communication signals; and outputting the outgoing analog communication signals via the PSTN. - View Dependent Claims (13)
- PSTN”
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14. A method for adapting a voice communication signals according to physical characteristics defined for a designated nation, the method comprising:
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reading information regarding physical characteristics of voice signals relating to a telephone circuit unit defined for a designated nation with respect to processing voice communication signals received or to be transmitted via a Public Switched Telephone Network (“
PSTN”
);changing a gain of an amplifier embedded in a telephone circuit unit according to the read information regarding the physical characteristics of voice signals relating to the telephone circuit unit defined for the designated nation; and changing a pass band of a digital filter embedded in the telephone circuit unit according to the read information regarding the physical characteristics of voice signals relating to the telephone circuit unit defined for the designated nation.
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Specification