KR100218692B1 - Telephone having automatic on/off switching function in a hook switch - Google Patents

Abstract

In the present invention, when a user selects a specific mode, when a call is received from the outside, the hook switch is automatically switched to the off-hook state based on the ring signal count number, and at the same time, The present invention relates to a telephone having a hook switch automatic on / off switching function capable of automatic switching, comprising: a control unit for controlling the entire apparatus; and a telephone connection unit for controlling connection of the telephone according to the control of the control unit; A mode storage unit for storing as an option flag whether or not the off-hook automatic switching mode is set; a ring signal detection unit for detecting a ring signal applied through the CO line connection port; And a ring reception counter for counting the ring signal detection number by the ring signal sensing unit in accordance with a predetermined control signal based on the data state of the mode storage unit, And controls the connection unit to be switched to the talkable state by driving control of the connection unit.

Description

Hook switch A phone with automatic on / off switching

FIG. 1 is a block diagram showing the internal configuration of a general telephone with a built-in microprocessor. FIG.

FIG. 2 is a block diagram showing an internal configuration of a telephone set having a hook switch automatic on / off switching function according to an embodiment of the present invention; FIG.

DESCRIPTION OF THE REFERENCE NUMERALS

1: CO line connection port 2: Ring signal detection unit

3: Ring generating part 4: Interface circuit

5: Handset 5a:

5b: a mouthpiece 6: a call connection

7; Network circuit 8: microphone interface

8a: Microphone 8b: Microphone interface

9: Audio output unit 9a: Speaker

9b: buffer 9c speaker amplification interface

10: Display section 10a:

10b: display driver 11: memory

12, 120: microprocessor 13, 130: keypad

14: Dual Tone Multi-Frequency (DTMF) generating circuit

15: speakerphone driving unit 20: mode storage unit

21: ring reception counter unit 22: call end tone detection unit

BF1 to BF8: bidirectional buffer

In particular, when a user selects a specific mode, when a call is received from the outside, the hook switch is automatically switched to the off hook state based on the ring signal count number, and at the same time, And a hook switch automatic on / off switching function capable of automatically switching to a talkable state by driving.

Nowadays, the telephone which is widely distributed in our living space including the general household and the company can be said to be the most basic living necessity of the modern person who came to the information age, and in recent years, More efficient and convenient functions using a microprocessor are being added to the telephone.

1 is a block diagram showing an internal configuration of a general telephone with a built-in microprocessor. In FIG. 1, reference numeral 1 denotes a trunk line connection port for connecting an external trunk line and 2 denotes a trunk line connection port A ring generator 3 for outputting a ring tone to a receiver on the basis of an applied ring signal, 4 a counterpart terminal (hereinafter referred to as a counterpart) And an interface circuit for performing interface functions of the communication signals input / output to / from the device and the outside.

Reference numeral 5 denotes a handset. Reference numeral 6 denotes a call connection unit for interrupting the connection to the call according to a control signal from the microprocessor 12, which will be described later. 7 denotes a connection unit for connection with the interface circuit 4, A network for performing a signal processing for a side tone as well as amplifying a voice signal of a sender applied from a master station and a voice signal of a user applied from the handset 5 via a speaker 6, Circuit.

Reference numeral 8 denotes a voice input section for allowing a user to directly input voice through a microphone 8a provided on the surface of the telephone case without passing through the telephone set 5a of the handset 5, And a microphone interface circuit 8b for interfacing a signal output from the microphone 8a to the inside of the apparatus.

Reference numeral 9 denotes a voice output section for directly outputting a voice signal transmitted from a corresponding party through a speaker without passing through the receiver section 5b of the handset 5 according to the user's need, A speaker amplifying interface circuit 9c for interfacing a voice signal applied from the speakerphone driving section 10 to be described later and a buffer 9b for amplifying the signal outputted from the interface circuit 9c, And a speaker 9a for outputting a signal output from the speaker 9a to an audible sound of a predetermined level.

Reference numeral 12 denotes a microprocessor for controlling the operation of the entire apparatus. When the user picks up the handset 5, the microprocessor controls the operation of the entire apparatus.

Reference numeral 10 denotes a display unit for informing the user of the current operating state of the telephone, reference numeral 11 denotes a memory for storing data necessary for a normal operation of the telephone such as a speed dialing function, And a speaker phone driver for processing the voice signals exchanged between the output units 8 and 9 according to the input / output form.

Reference numeral 13 denotes a keypad provided with numeric keys and function keys used for dialing or performing a specific function by the user. Numeral 14 designates a keypad for inputting a predetermined key input through the keypad 13, And outputs a DTMF (Dual Tone Multi-Frequency) signal corresponding to the control command of the DTMF generating circuit.

In other words, the conventional conventional telephone set having the above-mentioned configuration has a telephone number storing function for storing a telephone number entered in advance in addition to a normal telephone call function with a correspondent of a correspondent, a user's specific key selection And a speaker phone function that allows a user to talk using the microphone 8a and the speaker 9a without having to hold the handset.

Meanwhile, among the various functions described above, the speaker phone function is a function that is useful when a user is in need of a phone call or an incoming call while the user is looking at another job, particularly, in a situation where both hands are used and it is difficult to pick up the handset However, since such a function is operated only once the function key installed in the main body of the telephone is selected, the user who has been separated from the telephone has to move to the place where the main body of the telephone is located.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a speaker phone capable of automatically switching a hook switch to an off-hook state based on the number of ring signal counts when a call is made from outside, And a hook switch automatic ON / OFF switching function which is capable of automatically switching to a call function state by turning ON the ON / OFF switch of the hook switch.

In order to achieve the above object, according to the present invention, there is provided a telephone having a hook switch automatic on / off switching function, the telephone including a control unit for controlling the entire apparatus and a telephone call connection unit for controlling the connection by a call under the control of the control unit; A mode storage unit for storing as an option flag whether or not the off-hook automatic switching mode is set; a ring signal detection unit for detecting a ring signal applied through the CO line connection port; And a ring reception counter for counting the ring signal detection number by the ring signal sensing unit according to a predetermined control signal based on the data state of the mode storage unit, And controls the connection unit to be switched to the talkable state by driving control of the connection unit.

That is, according to the present invention, the user can set the automatic switching mode of the hook switch according to the need, so that the user can receive the telephone without lifting the handset or performing a separate key operation when an external call is received. So as not to be disturbed.

Hereinafter, embodiments according to the present invention will be described with reference to the accompanying drawings.

FIG. 2 is a block diagram showing an internal configuration of a telephone equipped with a hook switch automatic on / off switching function according to an embodiment of the present invention. The same reference numerals are given to the same constituent elements as those of the first embodiment, and a detailed description thereof will be omitted. .

2, reference numeral 130 denotes a keypad having a function key (not shown) for selecting an off-hook automatic switching function according to the present invention. Reference numeral 20 denotes a function key When the off-hook automatic switching mode is set by the user, the mode storage unit 20 stores the internal status flag under the control of the microprocessor 120, for example, 1 ', and when the user selects the function key of the keypad 130 again to cancel the automatic switching mode, the internal status flag is reset to' 0 '.

Reference numeral 21 denotes a ring reception counter for down-counting the count value set therein by the control of the microprocessor 120 every time a ring detection signal is applied from the ring signal sensing unit 2, Each time the microprocessor 120 outputs the ring detection signal from the ring signal detection unit 2, the reception counter unit 21 counts down from the initial set value "3 times", for example, 0 ', that is, when the ring signal is received three times, a predetermined confirmation signal is output to the microprocessor 120 side.

On the other hand, reference numeral 22 is a call termination sound detection unit for confirming a call termination sound sent from the exchange immediately after termination of the call and outputting a predetermined detection signal in accordance with detection.

Next, the operation of the apparatus having the above-described configuration will be described.

If the user determines that there is no room left to hold the handset or press the off-hook button even if the telephone is disconnected at the beginning of the work, the user may press a function key (not shown) provided on the keypad 130 The microprocessor 120 sets the status flag in the mode storage unit 20 to '1', for example, to automatically switch the hook switch Mode is set.

When the count value of the ring reception counter unit 21 becomes '0' as the result of the down count, the microprocessor 120 determines that all the ring reception times '3 times' set at the initial time are counted, And controls the connection unit 6 via the telephone and outputs a predetermined control signal to the speakerphone driving unit 15 so that the user can make a call with the caller who has made a telephone call through the microphone 8a and the speaker 9a It is switched to the call function state.

Then, when a ring signal is applied through the CO line connection terminal 1 by a telephone call from the outside, the ring signal sensing unit 2 outputs a ring detection signal of a predetermined level to the microprocessor 120 side , The microprocessor 120 checks the status flag of the mode storage unit 20 and when the flag data is set to '1', every time the ring detection signal is received from the ring signal detection unit 2, The count value set in the counter unit 21 is counted down by '1'.

On the other hand, when the call is terminated and the other party hangs up the telephone, the call termination sound transmitted from the exchange is applied through the CO line connection port 1. The microprocessor 120 detects the call termination sound detection unit 22 And controls the connection unit 6 in the call based on the call end tone received by the call connection unit 6 to restore the call setup state to the on-hook state.

That is, according to the embodiment, when a call is received from the outside, the hook switch is automatically switched to the off-hook state based on the ring signal count number, and at the same time, the speaker phone is turned on (0N) .

The present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the technical scope of the present invention.

Claims (1)

1. A telephone comprising: a control unit for controlling the entire apparatus; and a telephone call connection unit for controlling a telephone call connection according to the control of the control unit; A mode storage unit for storing as an option flag whether or not the off-hook automatic switching mode is set; a ring signal detection unit for detecting a ring signal applied through the CO line connection port; A ring reception counter for counting a ring signal detection number by the ring signal sensing unit according to a predetermined control signal based on a data state of the mode storage unit; And a call termination sound detection unit for outputting a predetermined detection signal. When the ring signal counter unit counts a predetermined value, the control unit drives and controls the call connection unit to switch to a talkable state, The hook-switch automatic ON / OFF switching is performed even if the connection portion is in the on-hook state, Phones with features.