Communication terminal device adapted to physical characteristics of telecommunication network and method for adapting communication terminal device to physical characteristics of telecommunication network

• US 8,014,515 B2
• Filed: 09/09/2009
• Issued: 09/06/2011
• Est. Priority Date: 10/18/2003
• Status: Expired due to Fees

• Current Assignee: HP Printing Korea Co., Ltd. (HP Inc.)
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Eog-Kyu
• Primary Examiner(s): Gauthier; Gerald
• Application Number:
  US12/585,227
• Publication Number:
  US 20100002856A1
• Time in Patent Office: 727 Days
• Field of Search: 379/93.29, 379/100.16, 379/115.03, 379/220.01, 379/221.01, 379/387.01, 379/93.09, 455/433
• US Class Current: 379/387.01
• CPC Class Codes: H04N 1/32704 Establishing a communication with one of a facsimile and another telecommunication apparatus sharing a single line
• CPC Class Codes: H04N 1/32708 Telephone
• CPC Class Codes: H04N 1/32728 an off-hook condition
• CPC Class Codes: H04N 1/33323 transmission mode only, e.g. speed
• CPC Class Codes: H04N 1/33361 according to characteristics or the state of the communication line H04N1/33353 and H04N2201/33371 take precedence

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.

Claims

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 telephone network adaptor unit configured to receive incoming analog communication signals via the PSTN and to convert the received incoming analog communication signals into incoming digital communication signals; and

a main unit coupled to the telephone network adaptor unit to receive the incoming digital communication signals, and process the incoming digital communication signals as facsimile signals or voice signals, the main unit including a controller, a memory and a telephone circuit unit, the memory storing information regarding physical characteristics of voice signals relating to the telephone circuit unit demanded by the designated nation,

wherein, when the main unit processes the incoming digital communication signals received from the telephone network adaptor unit as voice signals, the controller controls the telephone circuit unit so as to change at least one physical characteristic of incoming communication signals, according to the information regarding physical characteristics of voice signals relating to the telephone circuit unit demanded by the designated nation, to generate incoming voice signals, which are output via a speaker.

2. The communication terminal device of claim 1, wherein the memory is arranged to stores information regarding physical characteristics of voice signals relating to the telephone circuit unit demanded by one or more other nations, any one of which can be selected as the designated nation.

3. The communication terminal device of claim 1, further comprising an interface unit coupled between the main unit and the telephone network adaptor unit to forward the incoming digital communication signals received from the telephone network adaptor unit to the main unit.

4. The communication terminal device of claim 3, wherein the interface unit serves to isolate the main unit from the telephone network adaptor unit.

5. The communication terminal device of claim 1, wherein the main unit, upon changing at least one physical characteristic of the incoming digital communication signals, converts the changed incoming digital communication signals into incoming analog voice signals.

6. The communication terminal device of claim 1, wherein the telephone circuit unit comprises:

a voice signal processor to process incoming digital communication signals; and

a signal converting unit coupled to the voice signal processor configured to convert incoming digital communication signals to the incoming voice signals,

wherein the voice signal processor changes at least one physical characteristic of incoming digital communication signals according to the information regarding physical characteristics of voice signals relating to the telephone circuit unit demanded by the designated nation.

7. The communication terminal device of claim 6, wherein the voice signal processor comprises an amplifier for amplifying digital communication signals, wherein the amplifier is controlled by the controller to change a gain of the amplifier.

8. The communication terminal device of claim 6, wherein the voice signal processor further comprises a digital filter for passing a predetermined frequency band from digital communication signals, wherein the filter is controlled by the controller to change a frequency band.

9. The communication terminal device of claim 7, wherein the voice signal processor further comprises a digital filter for passing a predetermined frequency band from digital communication signals, wherein the filter is controlled by the controller to change a frequency band.

10. The communication terminal device of claim 1, further comprising a handset including the speaker from which incoming voice signals are output and a microphone for receiving outgoing voice signals.

11. 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 the voice communication signals are 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 incoming analog communication signals via the PSTN;

converting the received incoming analog communication signals to incoming digital communication signals, wherein the incoming digital communication signals are processed as facsimile signals or voice signals;

when the incoming digital communication signals are processed as voice signals, controlling the telephone circuit unit so as to change at least one physical characteristic of the incoming communication signals, according to the information regarding physical characteristics of voice signals relating to the telephone circuit unit demanded by the designated nation, to generate incoming voice signals; and

outputting the incoming voice signals via a speaker.

12. The method of claim 11, further comprising:

storing information regarding physical characteristics of voice signals relating to the telephone circuit unit demanded by one or more other nations.

13. The method of claim 11, wherein the speaker is incorporated in a handset including a microphone.

14. The method of claim 11, wherein, the telephone circuit unit, upon changing at least one physical characteristic of the incoming communication signals, converts the changed incoming digital communication signals into incoming analog voice signals.