JPH06141060A - Telephone set - Google Patents

Abstract

PURPOSE:To simplify operations and means such as pause time setting or the like and to improve operability by detecting the presence of connection to an line wire and other private lines, etc., corresponding to the input to telephone numbers. CONSTITUTION:Selecting signals read from a memory 10 are added to a main wire acquiring signal detection circuit 16 and an AND circuit 18. The circuit 16 detects that the leading signal of the selecting signals outputted in the order of a dial operation from the memory 10 is a main wire acquiring signal and adds the detection signal to a pause timer circuit 20. The circuit 20 outputs a prescribed time 'L' with the detection signal of the circuit 16 as a starting signal and outputs 'H' when the circuit 16 does not detect the main wire acquiring signal. The output of the circuit 20 is added to the AND circuit 18 along with the output of the memory 10 and is outputted through a dial output circuit 22 to a private branch exchange with the selecting signal from the memory 10 as dial output. Thus, a special pause switch or the like are unnecessitated and the operability is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone capable of making a call from a private telephone (extension telephone) to a station line (external line) other than the private telephone line via a private branch exchange.

[0002]

2. Description of the Related Art In a telephone system in a premises such as a factory or an office building, each premises telephone is linked by a premises line independent of a central office line and is connected to an outside line by using the premises telephone.

In such a private telephone system, when a private branch exchange connects a private telephone with an outside line, a maximum of about 3 seconds is required, and a designated number for calling an outside line, for example, a "0" dial is an outside line. When the call is set to ringing, after operating the "0" dial, while confirming that the connection with the outside line has been made after a certain pause time, the other party confirms whether there is a dial tone from the other party. It is necessary to manipulate the numbers. If the telephone number of the other party is dialed within the pause time, the private branch exchange does not send the dial output to the central office line.

Therefore, it is possible to prevent erroneous dial operation during such a pause time, and to store the pause time in the memory together with the dial output generated by the dial operation, that is, the selection signal. Japanese Patent Application No. 58-70525 "Dial output device for subscriber telephones" has been proposed as a telephone that allows dial operation regardless of length.

In such a telephone, when dialing is performed, as shown in FIG. 4, the handset is removed from the telephone (ON HOOK → OFF HOOK) and the key switch of the number "0" for calling the central line is operated. Next, the caller recognizes that the call is an outside line connection and operates the pause switch "P _A " to set the required pause time for that, and then the other party's telephone number, for example, "3112121" Operate the key switch. In this case, the dial output is “0 pause 3112121”, and the memory contents are 0, P
_A , 3, 1, 1, 1, 2, 1, 2, 1.

When performing redial operation using such a dial output device, the redial switch "R"
By operating " _D ", the same dial output can be obtained, in which case the stored contents of the memory will be in the form shown in FIG.

[0007]

By the way, in a telephone using such a dial output device, a pause switch for setting a pause time is required when sending a dial output, which complicates the switch mechanism. At the same time, since the operation is required, the operability of the dial is poor, a malfunction occurs due to unfamiliarity, and a memory for storing the pause time signal obtained by the operation,
There is an inconvenience that it is necessary to set a storage area for the existing memory.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a telephone having improved operability by simplifying means and operations for setting a pause time and the like.

[0009]

The telephone of the present invention has an input means (keyboard 4) for inputting a selection signal to be transmitted.
And storage means (memory 10) for storing the selection signal input from the input means, and detecting that the head of the selection signal stored in the storage means is an outside line,
Selection signal output means (main circuit section 2) for setting a preset pause time in response to the detection and outputting the selection signal read from the storage means after the pause time elapses. It is characterized by

[0010]

In the telephone of the present invention, when the key input operation of the keyboard, that is, the dial operation, the operation contents (selection signal) are sequentially written in the storage means, and the start of the selection signal is a signal representing an outside line. By detecting the signal, the output of the selection signal from the storage means is prohibited during the pause time (for example, about 4 seconds), and the selection signal is output after the pause time. Therefore, it is detected that a connection to an outside line, for example, an office line is required in response to dial input, and if an exchange to an outside line or connection is required, set the pause time required for the exchange or connection,
After that pause time, a select signal is sent.

[0011]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 shows an embodiment of a telephone according to the present invention. This telephone has a main circuit section 2 as a selection signal output means for outputting a selection signal according to a dial input, and a keyboard 4 and a crystal oscillator 6 are externally attached to the main circuit section 2. The main circuit unit 2 is a one-chip I
It is composed of C and generates a selection signal according to an input from the keyboard 4. The keyboard 4 is composed of a plurality of key switches such as a numeric keypad for inputting a telephone number and the like.
Is a data input means for inputting a selection signal to or specifying the selection signal. The crystal oscillator 6 is a means for setting the reference frequency.

The keyboard 4 is constructed by arranging, for example, one-contact mechanical key switches in a matrix, and the vertical and horizontal directions thereof are, for example, ROW 1, 2, 3, depending on the arrangement of the key switches.
When the regular key switch is pressed, one is selected from each of the ROW and COL groups and the key input signal is output. Therefore, the keyboard 4 operates the dial signal (selection signal) corresponding to the dial number, and the redial switch R _D
The redial signal from the keyboard input circuit 8 of the main circuit unit 2
Added to. For example, in dial operation, when a signal representing an outside line, that is, a station line capture signal representing a station line in this embodiment is set by operating the first "0" key switch, the "0" key switch operation is performed. After,
By sequentially operating the station number and the number of the other party, it becomes possible to connect to a line (external line) other than the local line, that is, a station line.

The keyboard input circuit 8 checks the presence / absence of depression of the multiple key switch, and when the multiple key switch depression is detected, the function of invalidating the signal and the chattering for removing the chattering generated when the key switch is depressed. It has an auxiliary function such as a prevention function, converts a selection signal or redial signal input from the keyboard 4 into a binary code suitable for processing, for example, a 4-bit binary code, and stores the keyboard 4 in a memory 10 installed as a storage unit. Input in operation order.

The memory 10 can be composed of, for example, a register composed of a plurality of flip-flop circuits, and selection signals and the like are written in the operation order. in this case,
The reference oscillation circuit 12 oscillates a clock pulse having a frequency set by the crystal oscillation element 6, and this clock pulse is applied to the timing generation circuit 14 as a control signal for timing generation. Therefore, the timing generation circuit 14 generates a specific timing signal in the unit of the clock pulse, and this timing signal is added to the keyboard input circuit 8 and the memory 10 to output a selection signal or redial signal output from the keyboard input circuit 8. The output interval of signals and the like and the writing and reading timing of the memory 10 are
It is set by this timing signal.

The selection signal read from the memory 10 is added to the station line acquisition signal detection circuit 16 installed as the station line acquisition signal detection means, and is also installed as the gate means for controlling the output of the selection signal. The AND circuit 18 has been added. The local line acquisition signal detection circuit 16 is
The head signal of the selection signals output from the memory 10 in the dial operation order is detected to be, for example, a station line capture signal set by the dial "0", and the detected signal is set as a pause time setting means. Pause timer circuit 2
Add to 0. The local line acquisition signal detection circuit 16 is
Respond only to the first digit key input from the keyboard 4 and 2
It is configured so as not to respond to the key input after the digit.

The pause timer circuit 20 uses, for example, the detection signal of the local line acquisition signal detection circuit 16 as a start signal,
In this embodiment, L (low potential) output is generated for 4 seconds, and H (high potential) output is generated when the station line acquisition signal detection circuit 16 does not detect the station line acquisition signal.

In this case, the detection timing of the station line acquisition signal detection circuit 16 and the pause time output by the pause timer circuit 20 are set based on the timing generated by the timing generation circuit 14.

Then, the output of the pause timer circuit 20 is added to the AND circuit 18 together with the selection signal of the memory 10, and when the AND condition of both inputs is satisfied, the memory 1
The selection signals added from 0 are sequentially transmitted as a dial output and added to the dial output circuit 22. The dial output circuit 22 sequentially sends the dial output DP output from the AND circuit 18 to the private branch exchange based on the timing generated by the timing generation circuit 14.

Therefore, in this telephone, as shown in FIG.
As shown in, when calling the central office line, remove the handset from the telephone body (not shown) (ON HOOK → OFF HOOK), and press the predetermined number key on the keyboard 4, for example, "031121".
21 ", the selection signal becomes a station line capture signal because the head number is" 0 ", and the pause timer circuit 20 outputs a pause time signal upon detection by the station line capture signal detection circuit 16. Selection signal DP during pause time
Output is prohibited. As a result, the selection signal for dial output becomes "0 pause 3112121", and the stored content of the memory 10 does not include pause data "031121".
It becomes 12121 ".

After the call, the handset is placed (ON H
OOK), remove the handset again (ON HOOK → OFF HOOK), and press the redial switch R _D to redial the same dial output "0 pause 3112".
121 ”can be generated.

In the case of exchanging and connecting the local telephones, as shown in FIG. 3, the handset is removed from the telephone main body (ON HOOK → OFF HOOK), and a predetermined key switch on the keyboard 4 is selected. For example, the extension number "591" is input. In this case, since the start number is not "0",
There is no detection of the local line acquisition signal by the local line acquisition signal detection circuit 16, the pause timer circuit 20 produces H output, the output of the dial output circuit 22 becomes "591", and the memory 10
The stored content of "59" is also "591".

After the call, the handset is returned to the telephone body (ON HOOK), and when redialing, the handset is removed again from the telephone body (ON HOOK → OFF HOOK) and the redial switch R _D is pressed. As a result, the dial output is the read out of the stored content “591” of the memory 10. After the call, by returning the handset to the telephone body (ON HOOK), the connection between the local telephones is released.

As described above, in this telephone, it is detected whether or not the head signal of the selection signal is the office line acquisition signal, that is, the outside line calling number which becomes the office line acquisition signal, for example, "0". Then, after the "0", a predetermined pause time is automatically set to realize the connection with the central line.

In the embodiment, the hook switch is operated by turning on / off the handset on the telephone body (ON.
HOOK → OFF HOOK, OFF HOOK → ON HOOK) I explained about the telephone, but the main body of the telephone and the handset are integrally configured so that it is not necessary to attach and detach the handset, and a hook switch is installed separately. The present invention can be similarly applied to a telephone device such as a phone.

[0026]

As described above, according to the present invention, the presence or absence of a connection with an outside line (station line) or another premises line is detected in accordance with the input of a telephone number. There is no need to install a special pause switch etc. and operate it, the switch configuration can be simplified and the operability of entering a telephone number can be improved. Moreover, the pause time is automatically set according to the input dial number. Since it is not necessary to store it, it is not necessary to set a storage area for the pause time data in the storage means for that purpose or the existing storage means, and the configuration of the storage means can be simplified. .

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a telephone according to the present invention.

FIG. 2 is a diagram showing dial key operation, dial output, and stored contents of a memory of the telephone shown in FIG.

FIG. 3 is a diagram showing dial key operation, dial output, and stored contents of a memory of the telephone shown in FIG.

FIG. 4 is a diagram showing dial key operation, dial output, and stored contents of a memory in a conventional dial output device of a telephone.

[Explanation of symbols]

 2 ... Main circuit part (selection signal output means) 4 ... Keyboard (input means) 10 ... Memory (storage means)

Claims (1)

[Claims] 1. An input means for inputting a selection signal to be transmitted, and a storage means for storing the selection signal input from the input means, wherein the head of the selection signal stored in the storage means is an outside line. Selection signal output means for detecting that there is a predetermined time, setting a preset pause time in response to the detection, and outputting the selection signal read from the storage means after the lapse of the pause time. A telephone that is characterized by