JP3153259B2 - Terminal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection between a telephone and an optional unit having an additional function housed in a case separate from the telephone.

[0002]

2. Description of the Related Art In recent years, in contrast to the addition of telephone functions, there has been a trend toward a lighter, thinner and smaller design. As a result, the space in the case of the telephone has become smaller, and the printed circuit board inside the telephone, which incorporates multiple functions, has to be densely mounted. In the case of adding an optional function to such a telephone, for example, in the case of a function of enabling connection between a telephone line and a data terminal device such as a personal computer for data communication, an electronic package integrating the functions is provided in another case. (Option Case) An option unit equipped with function buttons and the like for operating the option unit is placed near the telephone on the surface of this separate case, and electrically connected with a cable or the like. .

[0003] When the option case is placed on the side of the telephone as described above, the electrical connection (connection by a cable) between the telephone and the option case alone may cause a disconnection due to stress on the connection part. Kaisho 59
As described in JP-A-56781, a method of mechanically fixing a telephone (main body) and an option case has been adopted.

[0004]

However, if another case for adding a function to the side surface of the telephone (main body) is installed as in the prior art, the occupied area of the installation surface is increased by the amount of the other case. When installing on an office desk,
In addition to the inconvenience that the space cannot be used effectively, metal fittings and screws for fixing them and jigs and tools for mounting them are required, and further, there is an uneconomical effect such as troublesome mounting. There was a problem.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method of connecting a telephone and an additional optional unit, which can add an optional unit to a telephone without changing the occupied area of the installation surface, and a structure thereof.

[0006]

SUMMARY OF THE INVENTION The present invention comprises a telephone set and a slave unit having additional functions, wherein the telephone unit has a slave unit connecting means located below and structurally connecting the slave unit; Slave device connection means for electrically connecting to the slave device;
Operating means for operating the additional function, wherein the slave device is located in correspondence with the slave device connecting means and is configured to electrically connect the telephone with the telephone; and electrically connected to the telephone. Telephone connection means.

[0007]

The telephone has slave unit connecting means for structurally connecting slave units located at the bottom and including additional functions, and slave unit connecting means for electrically connecting the slave units. Operation means for operating is provided in advance. Further, the slave device includes a telephone coupling unit positioned corresponding to the slave device coupling unit and coupling the telephone, and a telephone connection unit electrically connected to the telephone. When the telephone and the slave device are structurally and electrically coupled and connected, the telephone allows the operating means to function to operate the slave device from the telephone. Thus, the optional unit can be added to the telephone without changing the occupied area of the installation surface.

[0008]

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

(1) Description of Structure

FIG. 1 is an external view of a terminal device according to the present invention. In FIG. 1, reference numeral 1 denotes a telephone, and 2 denotes an optional unit (slave) added to the telephone 1. Also, 1
a is a handset, 1b is a dial button, 1c is a liquid crystal display, 1d, 1e, 1f are various function buttons, 1g is a dial (volume) for setting a ringtone and a speaker volume, 2a is an LED display section, 2b is The option unit operation buttons are shown. FIG. 1 shows a state in which the optional unit 2 is attached to the telephone 1.

FIG. 2 is a perspective view showing a state where the optional unit 2 is removed from the telephone 1, and FIG. 3 is a sectional view showing a state where the optional unit 2 is attached to the telephone 1 (the state shown in FIG. 1). FIG. 8 is a perspective view of the option unit 2.

In FIG. 3 or FIG. 8, the optional unit 2 connected to the lower case 1B of the telephone 1
An upper case 2A, a lower case 2B, and a printed circuit board 10 mounted in the case to provide an additional function (optional function) are provided. The upper case 2A and the lower case 2B protect the printed circuit board 10. . The upper case 2A includes a claw portion 5, a convex portion 4, and a connector connection portion 8, and has a downwardly inclined slope θ as a whole.

Further, as shown in FIG. 2, since the option unit 2 is accommodated in the exclusive space of the telephone 1, the relationship between the width W2 of the option unit 2 and the width W1 of the telephone 1 is W1> W2. Depth dimension D2 of option unit 2 and depth dimension D1 of telephone 1
Is set so that D1> D2. The hook 5 provided on the option unit 2 has a locking surface 5a for fitting the lower case 1B of the telephone.
And is an elastic body.

FIG. 5 is an enlarged view showing how the convex portion 4 of the upper case 2A of the option unit 2 and the opening 6 of the lower case 1B of the telephone 1 are fitted in FIG. this is,
As shown in FIG.
9 may be provided, and the option unit 2 may be fitted by the convex portion 18 of the upper case 2A. However, in this case, the protrusion 18 protrudes by x from the bottom surface of the lower case 1B of the telephone 1, and it becomes impossible to mount components only on this protrusion 18, so that it is possible to fit with the structure shown in FIG. desirable. Therefore, in the present embodiment, the case of fitting as shown in FIG. 5 will be described.

FIG. 11 is a view for explaining how the convex portion 4 of the upper case 2A of the option unit 2 and the opening 6 of the lower case 1B of the telephone 1 shown in FIG. In FIG. 11, the convex portion 4 is an opening 6 of the lower case 1 </ b> B of the telephone 1.
In order to improve the fitting, the convex tapered surfaces 4a and 4b as shown in FIG. 7A are provided, and the shape is a trapezoid. This may be a partially cylindrical shape as shown in (b), and the thickness t of the convex portion for securing a sufficient mounting space for the printed circuit board 11 inside the telephone is t ≦ T with respect to the thickness of the lower case 1B of the telephone 1. And

In FIG. 7, the lower case 1B of the telephone 1 is provided with openings 6 and 7 corresponding to the claws 5 and the projections 4. Dimensionally, the relationship between the dimension Ln from the base of the claw portion 5 of the option unit 2 to the base of the protruding portion 4 to the size Ls from the opening 7 to the opening 6 of the lower case 1B of the telephone 1 is shown. Ln ≧ L within the elastic limit of part 5
s is set so as to eliminate backlash of the case fitting in the depth direction (Y direction: FIG. 8). Furthermore, FIG.
As shown in FIG. 1, the opening 6 is provided with tapered recesses 6a and 6b which serve as locking portions when the projections 4 are fitted.

When the optional unit 2 is mounted on the lower case 1B of the telephone 1, as shown in FIG. 2, first, the projection 4 is inserted into the opening 6 of the lower case 1B, and the tapered surface 4 is formed.
a, 4b are aligned with the recess locking surfaces 6a, 6b of the lower case. Further, by inserting the claw portion 5 into the opening 7 of the lower case 1B, the claw portion 5 which is an elastic body is bent, and the locking surface 5a of the claw portion 5 is fitted to the locking surface 7a of the lower case 1B. At this time, the convex portion 4 of the optional unit 2 and the concave engaging surfaces 6a and 6b of the lower case 1B of the telephone 1 are tapered surfaces or a semi-cylindrical surface and a tapered surface are fitted to each other. (X direction: FIG. 8), no displacement occurs, and the gap between the locking surface 5a of the claw portion 5 and the locking surface 7a of the lower case 1B can be made almost zero, and the vertical direction between the cases can be reduced. There is no play.

On the other hand, the electrical connection is performed as shown in FIG.
As shown in FIG. 1, when the optional unit 2 for providing an additional function is coupled to the telephone 1, an opening formed by the connector connection 9 of the lower case 1B of the telephone 1 and the connector connection 8 of the optional unit. By telephone 1
And the printed circuit board 11 of the option unit 2 are connected by a connector and a cable.

Thus, the telephone 1 and the option unit 2 can be structurally and electrically integrated.

Next, from the telephone 1, the optional unit 2
The case of removing is described with reference to FIGS. 7 and 12.

As shown in FIG. 12, an object 15 such as a tip of a flathead screwdriver is pushed into a notch 14 provided in the lower case 1B of the telephone 1. That is, by pushing the back surface 5b of the claw portion 5 shown in FIG. 7 in the direction A, the engagement between the locking surfaces 5a and 7a can be released, and the telephone 1
The option unit 2 can be removed from.

Next, a second example of the structure in the case where the option unit has the shape shown in FIG. 9 will be described.

FIG. 9 shows the option unit 2 shown in FIG.
FIG. 4 is a perspective view showing an option unit 3 of a second example having a configuration in which the upper case 2B is removed from FIG. 4, and FIG. 4 is a cross-sectional view in a state where the option unit 3 is attached to the telephone 1.

In FIG. 4 or FIG. 9, the option unit 3 attached to the lower case 1B of the telephone 1 includes a case body and a printed circuit board 12 mounted in the case to provide additional functions. Has a claw portion 5 and a convex portion 4. In addition, the case main body is provided with a downwardly inclined inclination θ as a whole.

The method and structure for attaching the option unit 3 to the lower case 1B of the telephone 1 are described in FIGS.
The detailed description is omitted because it is the same as the option unit 2 shown in FIG. In order to remove the optional unit 3 from the telephone 1, simply press the claw portion 5 near the base 5b on the rear surface of the case 5A in the direction A with a finger or the like as shown in FIG. The engagement between the locking surface 5a of the part 5 and the locking surface 7a of the case is released, and the case 5 can be removed.

On the other hand, when the optional unit 3 is electrically connected to the telephone 1 to provide an additional function, the connector connecting portion 9 of the lower case 1B of the telephone 1 is removed to provide an opening, and the connector and the cable are used. Connecting.

FIG. 13 is a diagram showing a part of the operation surface of the telephone 1, and includes a liquid crystal display 1c and various function buttons 1f. Further, the various function buttons 1f are
f-1 and an LED display section 1f-2.

Here, the option unit operation button 2b for operating the option unit 2 is
Does not perform any function, and functions as a dedicated operation button for operating the option unit 2 when the option unit 2 is connected. The option unit operation button 2b is a button having a built-in LED display unit (display function), and can display various states. When the telephone 1 and the option unit 2 are connected, the liquid crystal display 1c displays information on the option unit 2 in addition to displaying information on the telephone 1, and the liquid crystal display 1c serves as a display of the telephone 1. Features and
The function of the option unit 2 as a display is also used.

(2) Description of Internal Configuration

FIG. 14 is a block diagram showing the structure of the telephone 1.

In FIG. 14, reference numerals 1401 to 141
Reference numeral 2 and reference numeral 1c indicate the configuration of the telephone. A central control unit (for example, a microprocessor) 1401 controls the entire telephone, and includes a memory (A) 1402,
Line interface unit 1403, call circuit control unit 140
4. The option unit connection unit 1408, the LED, the button control unit 1409, and the display device control unit 1412 are connected.

The memory (A) 1402 is provided in the central control unit 14
01 stores a program for controlling the telephone and data. Also, the line interface unit 140
3. The communication circuit control unit 1404, option unit connection unit 1408, LED, button control unit 1409, and display device control unit 1412 are controlled and operated by the central control unit 1401.

The line interface unit 1403 interfaces with the switching device 141 via the telephone line 142. The communication circuit control unit 1404 connects the handset 1405 and the audio amplification unit 1406 and converts digital audio information of a predetermined format received from the line interface 1403 into analog audio information.
The audio data is transmitted to the handset 1405 and the audio amplifier 1406, and the analog audio information from the handset 1405 is converted into digital audio information and transmitted to the line interface unit 1403. The audio amplifier 1406 is connected to the speaker 1407, and
Amplify the analog audio information from the speaker 4
Output to Optional unit connection 1408
Is the option unit 2 (FIG. 15, telephone connection unit 15).
2), and is electrically connected to the line interface unit 1403.
Thus, information can be transmitted and received between the telephone line 142 and the optional unit (FIG. 15). L
The ED / button control unit 1409 includes an LED display unit group 141.
0 and the button group 1411 are connected to control the lighting and extinguishing of the LED display unit group 1410.
The button group 1411 is scanned to read that the button has been pressed. The display device control unit 1412 includes:
The display device 1c is connected to display desired characters (alphanumeric characters and the like) on the display device 1c based on control from the central control unit 1401. Here, the LED display unit group 14
Reference numeral 10 denotes an L built in the LED display section 1f-2 and the option unit operation button 2b shown in FIGS.
The button group 1411 includes the buttons 1b, 1e, 1f-1, and 2a shown in FIGS. 1 and 2.

The telephone line 142 is configured according to the connection conditions of the ISDN basic interface conforming to CCITT. Therefore, the switching device 141
N, a line interface 1403 includes information (data having a so-called 2B + D configuration) composed of two user information channels (B channels) and control information channels (D channels). ) Is transmitted and received to and from the telephone line 142.

Although FIG. 14 shows a single switching device 141, this may be a telephone network composed of a plurality of switching devices.

FIG. 15 is a block diagram showing the configuration of the option unit 2.

In FIG. 15, option unit 2
Has a rate adaptation unit 151. This rate adaptation unit 151 matches the speed of digital information (for example, V.11 of CCITT recommendation).
0) and the telephone connection unit 15
2, the DTE interface unit 153, the B2 channel interface unit 154, and the memory (B) 155 are connected. The telephone connection section 152 electrically connects the telephone 1 (FIG. 14, option unit connection section 1408), and connects the LED display section 2 a for displaying the status of the option unit 2. DTE interface section 153 interfaces data terminal apparatus (DTE) 156 and rate adaptation section 151, and performs processing such as analysis of outgoing call information and incoming call information. The B2 channel interface unit 154 connects the rate adaptation unit 151 and the telephone connection unit 152, and converts the digital data from the rate adaptation unit 151 into an ISDN B2 channel format.
Further, it converts the digital data in the ISDN B2 channel format into a format compatible with the rate adaptation unit 151. The memory (B) 155 is the central control unit 1
Access from the central control unit 140 (FIG. 14).
1 stores a program and data for controlling only the option unit 2.

Here, the interface condition between the DTE interface unit 153 and the data terminal device 156 is set based on, for example, a recommendation of CCITT. That is,
The electrical interface condition 28 / V. 11, the logical interface condition 24 / X. 21. Make outgoing / incoming calls Various standard data terminal devices can be connected by setting to 25 bis or the like and arbitrarily setting the speed and the like.

Next, a case where the telephone 1 and the option unit 2 are integrally connected will be described.

The telephone 1 and the option unit 2 are electrically connected by the connector and the cable as described above. This is performed by connecting the option unit interface unit 1408 shown in FIG. 14 and the telephone interface unit 152 shown in FIG. 15 with a connector and a cable.

As described above, when the option unit interface 1408 and the telephone interface 152 are electrically connected, the telephone 1 operates as if it were integrated with the option unit 2.

Since the configuration and operation of the option unit 3 are not different from those of the option unit 2, the description of the option unit 3 is omitted.

(3) Description of Operation

FIG. 16 is a flowchart for the telephone 1 to read and analyze changes in the internal state. Less than,
The operation will be described with reference to FIG.

First, the central control unit 1401 of the telephone 1
The internal state of the telephone is read (step 160).
1). Next, it is determined whether a change has occurred in the read internal state (step 1602), and if there is no change, the process ends. On the other hand, if there is a change in the state, it is determined whether the option unit 2 is connected (step 160).
3). If the option unit 2 is not connected, the state of the option unit flag stored in the memory (A) 1402 is reset (step 160).
4) If connected, the status of the option unit flag is set (step 1605). next,
It is determined whether any button has been pressed (step 16).
06) If not pressed, the process ends. If the button has been pressed, the type of the button is analyzed (step 1607), and the process ends.

The internal state is read by the above processing.

As described above, as a result of reading the internal state,
When the option unit 2 is connected to the telephone 1 and the option unit flag is set, the control unit 2 of the telephone 1 executes processing for accessing the memory (B) 155 shown in FIG. Is turned on, and the option unit operation button 2b of the telephone 1 is placed under control to perform a calling process, an incoming call process, etc. of the data terminal device 156.

Next, the function of the option unit operation button 2b of the telephone 1 and the option unit operation button 2 when the option unit 2 is connected to the telephone 1
The operation of the LED display unit incorporated in b will be described.

The “data” button of the option unit operation buttons 2 b of the telephone 1 is the data terminal device 156.
This is used for outgoing and incoming calls. An LED display unit incorporated in the “data” button displays information related to communication of the data terminal device 156. For example, the light goes out when the communication line is free, lights up green when dialing or waiting for dialing, blinks green slowly when calling the other party, green wink when communicating, and when receiving a call Is green fast flashing, red slow flashing when communicating with the other party,
When connection is not possible, it is lit red.

The "automatic" button of the option unit operation buttons 2b is used to switch the data receiving mode between automatic and manual. The LED display unit built in the "auto" button lights red when in the automatic state and turns off when in the manual state.

The "data display" button of the option unit operation buttons 2b is used to change the display content displayed on the display device 1c of the telephone 1 to the content corresponding to the telephone.
It is used to switch whether the content corresponds to the data terminal device 156. The LED display unit built in the “data display” button is
6 is lit green when the content corresponding to No. 6 is displayed, and is extinguished when the content corresponding to the telephone is displayed.

The "registration" button of the option unit operation buttons 2b is used for registering the operation conditions (communication speed, synchronous / asynchronous, automatic transmission / reception procedure) of the data terminal device 156, and the like. The LED display unit incorporated in the “register” button is lit red when registration is in progress.

Next, a procedure for calling the data terminal 156 will be described.

First, when the "data" button is pressed among the option unit operation buttons 2b of the telephone 1, which is the terminal device on the calling side, the central control unit 1401 recognizes that the call is a call. Then, the LED display unit built in the “data” button turns green. Thereafter, when it is recognized that the operator has pressed the dial button 1b and dialed the telephone number of the other party, the line interface unit 14
03 to perform call connection control with the switching device 141. On the other hand, the switching device 141 calls the terminal device of the other party accordingly, and notifies the calling terminal device that the call is being made. At this time, the LED display unit built in the “data” button blinks green slowly.
Thereafter, when the destination terminal device responds, the switching device 14
No. 1 notifies the calling terminal device that the other party responds and communication is possible. Then, in the calling terminal device,
The LED display unit incorporated in the “data” button is set to a green wink state, and the call connection control with the exchange device 141 is performed. Next, option unit 2 (FIG. 1)
5) and the option unit connection unit 1408 to control the transmission and reception of data between the telephone line 142 and the option unit 2 so that the data terminal device 156 can communicate.

Next, a procedure when the data terminal 156 receives a call will be described.

First, the line interface unit 1403 of the telephone 1, which is the called terminal device, detects an incoming call from the exchange 141, and the central control unit 1401 recognizes the incoming call. Then, the central control unit 1401 communicates with the call circuit control unit 1
Controls the 404 to send a ringing tone from the speaker 1407 and the LE built in the "Data" button.
The D display section flashes green rapidly. When the operator presses the "data" button in this state, the central control unit 1401 recognizes a response to the incoming call, and the line interface unit 1403
Is controlled to perform call connection control with the switching device 141 to perform call connection processing. Next, option unit 2 (FIG. 1)
5) By controlling the option unit connection unit 1408, the data from the telephone line 142 is sent to the option unit 2 to enable the data terminal device 156 to communicate. At this time, the LE built in the "Data" button
The D display unit is in a green wink state.

As described above, the telephone 1 and the option unit 2 can be made to appear as if they are integrated, and the data terminal device 156 calls the switching device 141 via the telephone 1 and the option unit 2. Can be connected.

When the telephone 1 and the option unit 2 are integrated, it is clear that the function of the telephone can be used by making it the same as the ordinary operation, so the explanation is omitted.

Further, the operation for the data terminal device and the operation for the telephone are performed respectively, and one of the two B channels is used for the data terminal device 156 and the other is used for the telephone, so that the data terminal device 156 The telephones can also communicate independently and simultaneously.

[0060]

According to the present invention, the optional unit can be added to the telephone without changing the occupied area of the installation surface, and the space for installing the telephone and the like can be effectively utilized.

Further, there is an effect that the operation of attaching and detaching the option unit to and from the telephone can be easily performed.

[Brief description of the drawings]

FIG. 1 is an external view of a terminal device according to the present invention.

FIG. 2 is a perspective view showing a state where an optional unit is removed from the telephone.

FIG. 3 is a sectional view showing a state in which the optional unit of the first example is attached to the telephone.

FIG. 4 is a cross-sectional view in a state where the optional unit of the second example is attached to the telephone.

FIG. 5 is an enlarged view showing a fitting state between the telephone and the option unit shown in FIG. 3;

FIG. 6 is a diagram showing another example of a fitting state between the telephone and the option unit.

FIG. 7 is an enlarged view of a fitting portion between the lower case of the telephone and the case of the optional unit shown in FIG. 3;

FIG. 8 is a perspective view of a case of the optional unit of the first example.

FIG. 9 is a perspective view of a case of the optional unit of the second example.

FIG. 10 is a diagram showing a state where FIG. 9 is viewed from the bottom.

FIG. 11 is an enlarged view illustrating the structure of fitting between the telephone and the option unit.

FIG. 12 is a diagram showing a state where FIG. 1 is viewed from the rear surface.

FIG. 13 is a diagram showing a part of the operation surface of the telephone.

FIG. 14 is a block diagram showing a configuration of a telephone.

FIG. 15 is a block diagram showing a configuration of an option unit.

FIG. 16 is a flowchart for the telephone to read and analyze changes in the internal state.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Telephone, 2, 3 ... Optional unit, 1a ... Handset, 1b ... Dial button, 1c ... Liquid crystal display,
1d, 1e, 1f: Various function buttons, 1g: Knob (volume), 2a: LED display section, 2b: Option unit operation buttons.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04M 1/02-1/23 H04M 11/00-11/10

Claims (3)

(57) [Claims] 1. A telephone connected to a telephone line and a data communication.
A slave unit that provides a communication function, and a slave unit coupling unit that structurally couples the slave unit, which is located below, to the telephone, a slave unit connection unit that electrically connects the slave unit, Operating means for operating the data communication function, control means for controlling the telephone, and first storage means for storing telephone control information necessary for the control means to control the telephone; A telephone coupling means for structurally coupling the telephones, which is located corresponding to the slave coupling means, a telephone connection means for electrically connecting the telephone, and a device necessary for controlling the slave. Second for storing slave device control information
A terminal device provided with a storage unit, to the control means, recognizing means for recognizing whether the above telephone the slave device is connected, based on the relevant recognition means
When it is recognized that the slave device is connected to the telephone, the slave device connecting means and the telephone connecting means are connected.
It accesses the second storage means via, the second serial
Activating the operating means according to the slave device control information stored in the memory means, and enabling the data communication function
A terminal device comprising: a slave device control unit to be provided. 2. The slave device further comprises display means, and the control means further comprises display control means for controlling lighting of the display means when the slave device is connected to the telephone. The terminal device according to claim 1, wherein: 3. The telephone device further comprising: a data terminal connecting means for connecting a data terminal device; and a converting means for converting data from the data terminal device into a format that can be transmitted to the telephone line. Further comprising line interface means for transmitting data obtained from the slave device to the telephone line, wherein the control means converts the data converted by the conversion means in accordance with the operation of the operation means via the line interface. 3. The terminal device according to claim 1, wherein the terminal device is controlled so as to be transmitted to the telephone line.