JPS6113745A - Telephone terminal unit - Google Patents

Abstract

PURPOSE:To attain the dial transmission at an optional time point while a system power supply is kept off by using a keyboard for both dial information input and terminal input and hooking off a handset. CONSTITUTION:A keyboard KB33 having a data output part is provided to a terminal part 30 of a telephone terminal unit, and the part 30 is controlled by a processing part 31. A keyboard controller 34 connected to the part 31 outputs the key data on the keyboard 33, and the off-hook/on-hook state of a handset 42 is detected by a hook switch 55. A relay circuit 37 performs switching between the output part of the keyboard 33 and the controller 34 or a dial transmission circuit 41 by the switch 55 and according to the on/off state of the system power supply. Then the keyboard 33 is used for both dial information input and terminal input. Thus the dial transmission is possible at an optional time point when the handset 42 is hooked off. Then the dial transmission is also possible even when the system is kept off.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a telephone terminal device in which a keyboard is commonly used for dial information input and terminal input.

[Technical background of the invention and its problems]

Conventionally, this type of telephone terminal device is comprised of a terminal section 10 and a telephone section 20, as shown in FIG. Terminal part 1
0 is the center of the device, and includes a CPU 11, a memory 12, a keyboard (hereinafter referred to as KB) 13, a keyboard controller (hereinafter referred to as KBC) 14, a system bus 15, and the like. These CPUs 11,
The memory 12, KB13, KBC14, etc. are powered by the system power supply. The telephone unit 20 also includes a dialing circuit 21 connected to the system path 15 via an interface (not shown), a handset 22, and the like. These dial transmission circuits 21 and the like are powered by the local power supply. In the telephone terminal device shown in FIG.
B13 is used not only as an input device for terminal input, but also as an input device for inputting dial information for manual dialing. This provides key personnel information to KBC14.
This is realized by reading the read information from k and distributing it to the CPU 11 or the dialing circuit 21. As a result, there is no need for a numeric keypad for inputting dial information on the m filling machine section 20 side, and the cost of the apparatus can be reduced.

However, with conventional telephone terminal devices, in order to enter dialing information from the keyboard and make a manual dial call as described above, the terminal needs to be in operation, and dialing is not possible when the system power is off. O [Object of the Invention] This invention was made in view of the above circumstances, and its purpose is to enable one key to be used for inputting terminal information and inputting dial information, and to provide system To provide a telephone terminal device capable of dialing using the keyboard even when the power is off.

Another object of the present invention is to provide a telephone terminal device that allows dialing using a keyboard when the handset is in an off-hook state.

[Summary of the invention]

The present invention has a configuration in which the key data output section of the keyboard is connected to either the keyboard controller or the dialing circuit depending on the on/off state of the hook switch that detects the off-hook/on-hook state of the handset and the system power supply. By doing so, the key data output section of the keepid can be connected to the dial transmission circuit unconditionally when the system power is off, and depending on the state of the hook switch when the system power is on.

[Embodiments of the invention]

FIG. 2 shows the configuration of a telephone terminal device according to an embodiment of the present invention. The telephone terminal device shown in FIG. 2 is composed of a terminal section 30 and a telephone section 40. The terminal unit 30 includes a CPU 31 which forms the center of the device, a memory 32 in which various programs and data are stored, and a KB (keyboard) 3.
It has a known circuit configuration such as C (key is one key □ controller) 34 and a system path 35. Terminal section 30
Furthermore, it has a new circuit configuration such as a control flag 36 and a relay circuit 37. CPU J 1, memory 32, KBC 34, and control 7 lug 36 are connected to system path 35. Each circuit constituting the terminal section 30 is powered by the system power supply, except for KB3.9 (which may be a component of the telephone section 40).

On the other hand, the telephone section 40 includes a dialing circuit 41, a handset 42, and the like. These are powered by the local power source.

The relay circuit 37 includes a relay coil 51 to which system power is supplied via the KBC 34, and a relay coil 51.
a relay driver 52 that drives according to the state M (on state) of the control flag 36, and a relay switch 53.
54, hook switch 55 and is completely blind. As is well known, the hook switch 55 is a switch that detects the off-hook state/on-hook state of the handset 42, and belongs to the telephone unit 40, but here, for convenience, the configuration of the relay circuit 37 in the terminal unit 30 will be described. (as an element). Hook switch 55 is connected in series to relay coil 51.

The normally closed fixed contact 53 & of the relay switch 53 of the relay circuit 37 is the key data input terminal 4 of the dial transmission circuit 41
11, also normally open □ side fixed contact 53 b F
It is connected to the key data input terminal 341 of the iKBC 34. Furthermore, the movable contact 53c of the relay switch 53 is K.
It is connected to the key data output terminal 331 of B33.

A movable contact 54c of a cutter switch 54 is connected to the power terminal 332 of the KB33. Further, a dial transmission circuit 41 is connected to the normally closed side fixed contact 54h of the relay switch 54.
Station power is supplied via the normally open side fixed contact 54.
System power is supplied to b through the entire KBC 34.

Although the number of relay switches 53 is equal to the number of constituent bits of the key data output from the KB 33, only one is shown in FIG. 2, and the rest are omitted. This is the key data output terminal 331 and the key data input terminal 3.
The same applies to 41,411.

Next, the operation of the configuration shown in FIG. 2 will be explained. Assume that the system power is currently turned off. In this case, relay circuit 3
The relay coil 51 of No. 7 is not driven (energized), and therefore the movable contacts 53c and 54t of the relay switch 53.54
is connected to the normally closed side fixed contacts 53ts and 54m (
The relay switches 53 and 54 in Figure 2 indicate this state)
. As a result, the station power is supplied to the power terminal 332 of the KB 33 via the relay switch 54 from the dial transmission circuit 41 which is always powered by the station power. Therefore, the KB33 is in an operable state. When the operator inputs dial information by operating the \t key (not shown) on the KB 33, the corresponding key data is directly supplied to the dial transmission circuit 41 via the relay switch 53. That is, according to this embodiment, it is possible to make a dial call using the KB 33f even when the system power is off.Next, the operation when the system power is on will be explained. Assume that the control flag 36 has now been reset. In this case, the relay filter 5 is not driven (energized) even though the system power is on. Therefore, KB33 is connected to the dial transmission circuit 41 side, and K B , J
,? You can make dial calls using . In this state, C
The PU 31 executes the control flag 36 via the system path 35 according to the program stored in the memory 32.
It is assumed that . At this time, the handset 42
is in the on-footer state, the hook switch 55 is on, and the relay driver 52 of the relay circuit 37 drives (energizes) the relay coil 51 in accordance with the control flag 360 set output. As a result, the movable contacts 53c and 54c of the relay switches 53 and 54 are switched and connected to the normally open fixed contacts 53b and 54b. As a result, system power 4; is supplied from KBC34 to power supply terminal 332 of KB33 via relay switch 54, and K
The operable state of B33 continues. Here, the operator
When a numeric value input (terminal input) is performed by operating the R33's numeric keypad, for example, the KBC34VC is supplied via the corresponding keep-takary relay switch 53. That is, according to this embodiment, the system power is on,
And when the control 7 lug 36 is set and the handset 42 is on-hook,
Since KB33 is switched and connected to KBC34 side, K
Terminal input can be performed from B and 9 J.

On the other hand, when the handset 42 is lifted from a handset stand (not shown) and placed in an off-hook state, the hook switch 55 is turned off.

As a result, the relay coil 51 is deenergized, and the movable contacts 58c, 54c of the relay switch 53, 54 are switched to the normally closed fixed contacts 53a, 54th. That is, the KB 33 is switched and connected to the dial transmission circuit 4 side in the same way as when the system power is in the OFF state. in this way,
According to this embodiment, handset 42 is placed on Oahu.

When this happens, the KB 33 is connected to the dialing circuit 41 regardless of the state of the control flag 36. Therefore, dialing can be made at any time regardless of whether the system power is on or off.

Nao, in the above embodiment, the dial transmission circuit 41 of KB33
Further, although the switching connection to #1 KBC 34 is performed by a relay, it is also possible to use an electronic switch or the like. Further, in the above embodiment, when the KB33 is connected to the dial transmission circuit 41 or the KBCs 4, the K
I have done all the switching of the power supply to B33, but the KB3
The configuration may be such that the station power source is supplied to the station power source 3 at a fixed rate.

Mata, control flag 36 is not necessarily necessary,
Depending on at least the system power supply and the 7 switch 55, KB33 is connected to the dial multiplier circuit 4 and #'1KBC3.
Any configuration that can be switched and connected to 4 is sufficient.

In addition, by fully connecting the dial transmission circuit 4 to the system path 35, in addition to dialing using the numeric keypad of the KB 33, the CPU 31
It is also possible to make automatic dial calls under the control of In this case, it may be built into the interface all-dial transmission circuit 41.

〔Effect of the invention〕

As described in detail above, according to the present invention, the following effects can be achieved.

(1) The keyboard can be shared for dialing information input and terminal input.

(2) It is possible to make dial calls using the keyboard even when the system power is off. (3) By putting the handset in an off-hook state, it is possible to make dial calls using all keys. In other words, dialing can be made at any time.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a conventional telephone terminal device;
FIG. 2 is a block diagram showing the configuration of a telephone terminal device according to an embodiment of the present invention. 31...CPU (processing unit), 33...Keyboard (KB), s4...Keyboard controller (K
BC) 36... Control system, 37... Relay circuit, 41... Dial transmission circuit, 42... Handset, 51... Relay coil, 53°54...
・Relay switch, 55... hook switch.

Claims (1)

[Claims] A telephone terminal device equipped with a dialing circuit includes a keyboard having a key data output section, a processing section forming the center of the device, and a keyboard controller that transfers key data from the key data output section of the keyboard to the processing section. , a handset, a hookswitch that detects off-hook/on-hook status of this handset, and on/off of this hookswitch and system power, respectively.
A telephone terminal device comprising: a connection switching circuit that connects a key data output section of the keyboard to either the keyboard controller or the dialing circuit depending on the off state.