KR20020031617A - a memory dial expanding device for a telephone and method therefor - Google Patents

Abstract

PURPOSE: An abbreviated dialing expansion unit for a general telephone and a method for controlling the same are provided to perform a dialing by storing a telephone number separately from a general telephone and reading the telephone number by an abbreviated dial. CONSTITUTION: A line matching unit(11) matches an impedance with a main wire. A memory unit(14) stores a telephone number. A DTMF tone transmitting unit(15) receives a telephone number and generates the corresponding DTMF signal. A DTMF tone receiving unit(12) converts a DTMF signal being inputted in the main wire into the corresponding number. A main wire status detecting unit(18) detects a status of the main wire. A keyboard control unit(16) codes a key value of a keyboard unit(17). The keyboard unit(17) has a plurality of keys. A main control unit(13) controls each unit and stores a telephone number being inputted from the DTMF tone receiving unit(12) in the memory unit(14), reads the telephone number stored in the memory unit(14) in accordance with a key value being inputted from the keyboard control unit(16), outputs the telephone number to the DTMF tone transmitting unit(15), and outputs a DTMF tone signal to a telephone line in accordance with the telephone number.

Description

Speed dial expansion device for general telephones and its control method {a memory dial expanding device for a telephone and method therefor}

The present invention relates to a speed dial expansion device for a general telephone, and a control method thereof. In particular, a speed dial expansion device for a general telephone that can be connected to a trunk line in parallel with a general telephone and stores a plurality of telephone numbers and can be dialed by a shortcut key. And a control method thereof.

When a user wants to make a call using a conventional general telephone, the telephone user remembers the telephone number and dials or finds a business card or a notepad, and checks the telephone number.

After memorizing the phone number or memo on the notepad, I feel uncomfortable to remember the phone number when calling and the way of dialing by searching for the notepad and storing the phone number in the memory in advance. A speed dialing method has been developed in which a button indicating an or a preset number is mapped to the memory, and a phone number stored in the memory is read and dialed.

However, since this method uses the internal memory of the central processing unit of a general telephone, the amount of phone numbers that can be stored is small, which makes it insufficient for an office to make a daily call to many customers such as a corporate office.

In addition, although there is a memory expansion device used for the key phone, it is limited to the key phone phone, and by connecting to the key phone main device, it occupies one extension port provided by the key phone, thereby reducing the efficiency of the key phone main device.

The present invention has been made to solve the above problems,

SUMMARY OF THE INVENTION An object of the present invention is to provide a speed dial extension device for a general telephone and a control method thereof, which can store a telephone number separately from a general telephone and read and dial the telephone number by speed dial.

Another object of the present invention is to save a number of speed-dial phone numbers and make a call by speed dial, speed dial extension device for general telephones to reduce the time to make a call and eliminate the inconvenience of memorizing or memorizing a phone number and control thereof To provide a way.

1 is a block diagram showing the configuration of a speed dial expansion device according to the present invention;

2 is a plan view of the front surface showing an example of the speed dial extension device of FIG. 1;

3A and 3B are flowcharts illustrating a method of controlling the speed dial expansion device according to the present invention.

<Explanation of symbols for the main parts of the drawings>

11 line matching unit 12 DTMF tone receiving unit

13: main controller 14: memory

15: DTMF tone transmitter 16: keyboard controller

17: keyboard portion 18: trunk line state detection unit

In order to achieve the above object, the apparatus according to the present invention includes a line matching unit for matching impedance of the trunk line with the apparatus; A memory unit for storing a telephone number; A DTMF tone transmitter for receiving a telephone number and generating a corresponding DTMF signal; A DTMF tone receiving unit for converting a DTMF signal input from a trunk line into a corresponding number; A trunk line state detection unit for detecting a state of the trunk line; A keyboard controller which codes key values of the keyboard unit; A keyboard unit having a plurality of keys; Controls each unit and stores the telephone number input from the DTMF tone receiving unit in the memory unit, reads the telephone number stored in the memory unit according to the key value input from the keyboard control unit, and outputs the telephone number to the DTMF tone transmitting unit. And a main control unit for outputting the DTMF tone signal to the telephone line according to the number.

The method according to the present invention temporarily stores a key value input when the state of the trunk line is in an off hook state, and when a shortcut signal is input among the key values, if the first key among the temporarily stored keys is a "phone number storage key". Storing the temporarily stored key values at an address of a memory unit (14) designated by the shortcut key; Automatically transmitting the temporary stored telephone number after the first key is an "extension connection key" in the on-hook state for a set time; In the step, if the first key is not the "extension key", after transmitting the "trunk line occupancy key", waiting for a predetermined time and automatically transmitting the stored telephone number; Temporarily storing a key value input when the state of the trunk line is in an off hook state, and when a shortcut key is not input among the key values, temporarily storing the key when a dial key is pressed; Storing the key with an automatic on hook time if the temporarily stored key is a call transfer time change key for extension connection; If the temporarily stored key is a trunk line occupancy number change key, storing the changed "CJ trunk number" key.

An embodiment of the present invention configured as described above will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing the configuration of a speed dial expansion device according to the present invention.

The speed dial expansion device 10 according to the present invention is connected to the trunk line in parallel with the general telephone 19. The line matching unit 11 matches the trunk line with the impedance of the apparatus. The memory unit 14 stores the telephone number. The DTMF tone receiving unit 12 converts the DTMF tone input from the trunk line into a telephone number and outputs it to the memory unit 14. The DTMF tone transmitter 15 receives a telephone number from the main controller 13, generates a DTMF tone signal corresponding to the telephone number, and outputs the DTMF tone signal to the trunk line via the line matching unit 11. The trunk line state detection unit 18 detects the trunk line connection state of a general telephone connected in parallel to the apparatus and the trunk line. The keyboard portion 17 has a plurality of keys, the key values of which correspond to addresses at which the telephone numbers of the memory portion 14 are stored. The keyboard controller 16 codes the key values of the keyboard unit 17 and outputs them to the main control unit 13. The main control unit 13 controls each unit and stores the telephone number input from the DTMF tone receiving unit 12 in the memory unit 14, and the memory unit according to a key value input from the keyboard control unit 16. The telephone number stored in (14) is read and output to the DTMF tone transmitter 15 to output a DTMF tone signal in accordance with the telephone number to the telephone line.

FIG. 2 is a plan view of the front surface illustrating an example of the speed dial extension device of FIG. 1.

In this embodiment, the shortcut keys 21 are extended to 25 in 5 rows and 5 rows in length, and the display unit 22 displaying the name of the other party to be dialed by each key on each shortcut key 21 is shown. It is provided. Here, the shortcut keys 21 have been expanded to 25 horizontally and 5 vertically, but can be expanded as many as the capacity of the memory unit 14 and the number of ports of the main control unit 13.

Referring to the general phone number storage method using the speed dial extension device 10 according to the present embodiment.

① Pick up the handset of your telephone (OFF HOOK). ② Press the [#] key. This key value is not stored here and is used as the key to indicate the start of the storage number. ③ Press the phone number to save. ④ Press the [*] key. This key value is also not stored and is used as a key to end the storage number. ⑤ The desired shortcut key of the expansion device 10 (for example, if you want to store Taeyoung Co., Ltd. information phone number, the shortcut key 21 under the display unit 22 indicated as "Taeyoung Info" of FIG. 2). )}. ⑥ Turn off the handset of the telephone you are using (ON HOOK).

Next, a method for storing an extension number when using a private exchange using the speed dial extension device 10 according to the present embodiment will be described.

① Pick up the handset of your telephone (OFF HOOK). ② Press the [#] key (used to indicate the start of the save number). ③ Press the [#] key again. This kit value is stored to indicate that the next number is the extension number. ④ Press the phone number to save. ⑤ Press the [*] key (the key to indicate the end of the save number). ⑥ Press the desired shortcut key (for example, the shortcut key 21 under the display part 22 indicated by the “secretary part” of FIG. 2 if the secretary wants to store the telephone number of the secretary). ⑦ Hang up the handset of the telephone you are using (ON HOOK).

Next, a method of automatically dialing in the trunk line mode using the speed dial extension device 10 according to the present embodiment will be described.

① Pick up the handset of your telephone (OFF HOOK). ② Press a desired key of the expansion device 10 (for example, to make a call to a conference room, press the shortcut key 21 located below the display unit 22 labeled "meeting room"). ③ The saved extension number (room number) is automatically sent. ④ Check the other party's voice and talk. ⑤ Put down the handset of the telephone you are using (ON HOOK).

Next, a method of automatically dialing in the extension mode using the speed dial extension device 10 according to the present embodiment will be described.

① Pick up the handset of your telephone (OFF HOOK). ② Press a desired key of the expansion device 10 (for example, to make a call to a conference room, press the shortcut key 21 located below the display unit 22 labeled "meeting room"). ③ The saved extension number (number containing "#") is automatically sent. ④ Check the other party's voice and talk. ⑤ Hang up the handset of the telephone you are using (ON HOOK).

In addition, when talking with another extension telephone during a call with another telephone, a desired key of the expansion unit 10 (for example, to call a conference room, below the display unit 22 marked as "meeting room"). If you press the hotkey (21)} located in, the saved extension number (the number with "#") will be automatically sent, which will be automatically hooked on for the set time to let the private telephone exchange attempt to switch. After acknowledgment, the stored number after "#" is transmitted.

If the initial number of the stored phone number is "#", it is determined as an extension number and the number after "#" is transmitted. If the initial number of the stored phone number is not "#", it is determined that the general telephone number is stored. Send out the number of CO line occupancy, wait about 3 seconds, and send out the stored phone number.

3a and b are flowcharts illustrating a method of controlling the speed dial extension of FIG. 2.

The main control unit 13 determines from the trunk line state detecting unit 18 whether the state of the trunk line is an off hook state (step S30). In the off-hook state, the key input by the keyboard controller 16 is temporarily stored, and it is determined whether a signal corresponding to the shortcut key 21 has been input (step S31). When the shortcut key 21 is pressed, it is determined whether the first key among the temporarily stored keys is "#" in order to store the input key in the memory unit 14 (step S32). Although "#" is used here to indicate phone number storage, it can also be specified by another special key (e.g., *).

When the first key is "#", the telephone number after the "#" is stored in the address of the memory unit 14 designated by the shortcut key 21 (step S33), and the state of the trunk line from the trunk line state detection unit 18. It is determined whether or not the state is On Hook (step S34). If the trunk line is in the on-hook state, the process returns to step S30 to wait for a signal indicating that the state of the trunk line is in the off-hook state from the trunk line state detecting unit 18, and when the trunk line is not in the on-hook state, it is in the on-hook state. waiting.

In step S32, when it is determined that the first key among the temporarily stored keys is "#", when the first key is not "#", the telephone number is stored in the address of the memory unit 14 designated by the shortcut key 21. It is judged whether or not it is (step S37). If not stored, the flow advances to step S34 to execute the following steps, and if the telephone number is stored in the memory unit 14, it is determined whether the first number is "#" (step S39).

If the first number is "# ", after automatically entering the on-hook state for a set time (e.g., a time for transferring a call to a third party in the private electronic exchange) (step S42), the stored number is automatically sent out. (Step S43), the flow advances to step S34 to determine whether the call is in the on-hook state.

If the initial number is not "#" in step S38, it is determined whether it is a private electronic switch mode (step S39). If not in the private electronic exchange mode, go to step S43 to automatically transmit the stored number; in the private electronic exchange mode, transmit the trunk line occupancy number (step S41), wait 3 seconds (step S42), and then Proceed to S44 to automatically transmit the stored number.

The following describes how to change the trunk line occupancy number and how to change the on-hook time for call transfer.

When the shortcut key 21 is not pressed in the process (step S31), it is determined whether the DTMF tone receiver 12 inputs the dial key signal transmitted from the general telephone 19 (step S36). If the dial key signal is not input, the process returns to the off hook state determination step S30 and repeats the process of determining whether the hot key is pressed.

When the dial key signal is input, the dial key is temporarily stored (step S36), and it is checked whether the temporarily stored dial key is "(#) (#) (#) (? = Call forwarding time setting number) (*)". It judges (step S44). If the temporary storage dial key is "(#) (#) (#) (?) (*)", The call forwarding time setting number is stored in the memory unit 14, and the on-hook state is maintained for the corresponding switching time when the call is transferred. Is maintained (step S44), and the flow returns to step S34 (step S45).

If the temporary storage dial key is not "(#) (#) (#) (?) (*)", It is determined whether the temporary stored dial key is "(#) (?) (*)" (Step S46). . If the temporarily stored key is "(#) (?) (*) &Quot;, the trunk line occupation number (? = 1 to 9) is stored in the memory unit 14 (step S47), and the on-hook state is judged ( Return to S34) (step S45). If not, the flow returns to step S30 to determine whether the trunk line is in an off-hook state.

As described above, according to the present invention, it is possible to shorten the time for the office call by the speed dial expansion device, and it is possible to use the office for storing a speed dial with a large capacity to make a call to a plurality of customers.

Claims (3)

A line matching unit 11 for matching impedance with the trunk line; A memory unit 14 for storing a telephone number; A DTMF tone transmitter 15 for receiving a telephone number and generating a corresponding DTMF signal; A DTMF tone receiving unit 12 for converting a DTMF signal input from a trunk line into a corresponding number; A trunk line state detection unit 18 for detecting a state of the trunk line; A keyboard controller 16 for coding key values of the keyboard unit; A keyboard unit 17 having a plurality of keys; Controls each unit, stores the telephone number input from the DTMF tone receiving unit 12 in the memory unit 14, and stores the telephone number stored in the memory unit 14 according to the key value input from the keyboard control unit 16. And a main control unit (13) for reading and outputting the DTMF tone transmitting unit (15) to output a DTMF tone signal based on the telephone number on a telephone line. Temporarily stores the key value input in the state of the trunk line off-hook, and when the shortcut key signal is input among the key values, if the first key among the temporarily stored keys is the "telephone number storage key", the temporarily stored key values are stored. Storing at an address of a memory unit 14 designated by the shortcut key; Automatically transmitting the temporary stored telephone number after the first key is an "extension connection key" in the on-hook state for a set time; In the step, if the first key is not the "extension key", after transmitting the "trunk line occupancy key", waiting for a predetermined time and automatically transmitting the stored telephone number; Temporarily storing a key value input when the state of the trunk line is in an off hook state, and when a shortcut key is not input among the key values, temporarily storing the key when a dial key is pressed; Storing the key with an automatic on hook time if the temporarily stored key is a call transfer time change key for extension connection; And if the temporary stored key is a CO line occupancy number change key, storing the changed "CNC line occupancy number" key. The telephone number storage key, the extension link key, and the trunk line occupancy key are any one of 0 to 9, #, and *, and are selected differently. The trunk line occupancy number changing key is a control method of a speed dial extension device for a general telephone, characterized in that a combination of a number of digits of # and * is followed by a combination of a number of digits of # and * and a key of 1 to 9.