JP2005286760A - Telephone terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a telephone terminal capable of being altered respectively into a code connection handset type terminal or a cordless handset type terminal at a comparatively low cost. <P>SOLUTION: The telephone terminal is provided with: a telephone set main body 1 provided with a terminal section 11 to which the other end of a curl cord is connected while one end of the curl cord is connected to the code connection handset; a secondary battery as a power supply; a cordless handset 6 having a wireless transmission/reception; and an adaptor 5 connected to the terminal section 11 of the telephone set main body 1 in place of the code connection handset and including the wireless transmission/reception for wirelessly transmitting/receiving a signal exchanged between the telephone set main body 1 and the cordless handset 6. The telephone set main body 1 includes an adaptor connection detection means for detecting that the adaptor 5 is connected to the terminal section 11, and disregards a hook switch 15 of a cradle for the cord connection handset when the detection means detects that the adaptor 5 is connected to the terminal section 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a telephone terminal device suitable for use as a business telephone such as a button telephone.

  In a business telephone such as a button telephone, a handset is generally a cord-connected handset, and is configured to be connected to a terminal portion of a telephone body through a curl cord. There are many things that have been done. However, when the handset is connected to the telephone body with a curl cord, the curl cord sometimes gets in the way and can be annoying.

  On the other hand, as described in, for example, Patent Document 1 (Japanese Patent Laid-Open No. 5-316031), the handset is a cordless handset having a wireless transmission / reception function, and the cordless handset and the telephone body are wirelessly connected. A cordless button telephone system using a telephone terminal device that can eliminate the curl cord between the handset and the telephone body by being connected has also been proposed.

  Conventionally, a telephone terminal device of the type using the above-described cord connection type handset and a telephone terminal device of a type using a cordless handset have been manufactured as completely different devices each having a dedicated hardware configuration.

The above-mentioned patent documents are as follows.
JP-A-5-316031

  By the way, business telephones are used in various ways depending on the workplace environment, such as being installed at a ratio of one to a plurality of staff in an office, or being assigned one to each staff member. Take the form of Depending on the mode of use, the cord-connected handset type telephone terminal device is more convenient, or the cordless handset type telephone terminal device is more convenient.

  Therefore, when a business telephone system is introduced into a business office, a plurality of telephone terminal devices connected to the main device are classified into a cord-connected handset type telephone terminal device and a cordless handset type telephone terminal according to the use environment. Either one of the devices is used, or both are mixed.

  However, in the conventional system, when the workplace environment changes due to movement or the like, when it is desired to change the telephone terminal device of the type used so far to another type of telephone terminal device, as described above, Since each type of telephone terminal device is configured as a device with a dedicated hardware configuration, it is necessary to replace the telephone terminal device with another type of device, resulting in a very high cost problem. is there.

  In view of the above points, an object of the present invention is to provide a telephone terminal device that can be changed between a cord connection type handset type and a cordless handset type at a relatively low cost.

In order to solve the above problems, the present invention provides:
A telephone body provided with a terminal portion to which the other end side of the curl cord connected to the cord connection type handset at one end side is connected;
A cordless handset having a secondary battery as a power source and having a wireless transceiver;
An adapter having a wireless transmission / reception unit that is connected to the terminal portion of the telephone body instead of the cord connection type handset and wirelessly transmits and receives signals exchanged between the telephone body and the cordless handset; ,
With
The telephone body is
When the adapter is connected to the terminal portion, adapter connection detecting means for detecting that the adapter is connected to the terminal portion,
When the adapter connection detecting means detects that the adapter is connected to the terminal portion, the telephone terminal apparatus is characterized in that the hook switch of the placement portion of the cord connection type handset is ignored. provide.

  In the present invention configured as described above, when changing from a cord connection type handset type to a cordless handset type telephone terminal device, first, the curl cord is removed from the terminal portion of the telephone body, and then the cord connection type is removed from the telephone body. Remove the handset.

  Then, an adapter and a cordless handset are prepared, and the adapter is connected to the terminal portion from which the cord connection type handset is removed. Then, the telephone main body detects that the adapter is connected by the adapter connection detecting means, and ignores the hook switch on the placement portion of the cord connection type handset, and enters a state of communicating with the adapter. As a result, wireless communication between the cordless handset and the telephone body is enabled via the adapter, and the cordless handset type telephone terminal device is obtained.

  In the opposite case, if the adapter is removed from the terminal portion of the telephone body, and the cord connection type handset is connected to the terminal portion from which the adapter is removed by a curl cord, the telephone terminal device is a cord connection type handset type. Phone terminal device.

  According to the present invention, a cord connection is made by selecting whether to connect a curled cord connected with a cord connection type handset or an adapter wirelessly connected to the cordless handset to the terminal portion of the telephone body. It is possible to realize a telephone terminal device that can be either a type handset type or a cordless handset type.

  In this case, since the telephone body is used in any type, two types of telephone terminal devices can be realized at low cost.

  Embodiments of a telephone terminal device according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram illustrating a configuration when the telephone terminal device of the embodiment is connected as a cord connection type handset type. Moreover, FIG. 2 is a figure which shows a structure at the time of connecting the telephone terminal device of embodiment as a cordless handset type.

  As shown in FIG. 1, in the case of the cord connection type handset type, the telephone terminal device according to the embodiment includes a telephone body 1, a cord connection type handset 2, and a curl cord 3. The telephone body 1 is connected to the main device of the key telephone system through the connection cable 4.

  The telephone body 1 has a terminal portion including a modular jack (not shown) into which a modular plug (not shown) provided at the other end of the curled cord 3 connected to the cord-connected handset 2 is connected. 11 is provided.

  The telephone body 1 includes a key operation unit 12 including a numeric keypad and function keys, and a display unit 13 made of, for example, an LCD (Liquid Crystal Display). Further, the telephone body 1 is formed with a mounting portion 14 having recesses 14 a and 14 b for storing the transmitter 21 and receiver 22 of the handset 2. The recess 14b in which the receiver is stored is provided with a hook switch 15 that is turned on / off by the operation of placing and receiving the receiver 22 of the handset 2 in the recess 14b and taking it out from the recess 14b. ing.

  Next, as shown in FIG. 2, in the case of the cordless handset type, the telephone terminal device of this embodiment includes the telephone body 1, the adapter 5, the cordless handset 6, and the charging stand 7.

  That is, in the case of this cordless handset type, instead of the curled cord 3 connected to the cord connection type handset 2, the connection cord 5 a connected to the adapter 5 is connected to the terminal portion 11 of the telephone body 1. In this case, a modular plug (not shown) that is inserted and connected to the terminal portion 11 formed of a modular jack is provided at an end portion of the connection cable 5a that is connected to the terminal portion 11.

  The adapter 5 exchanges control signals and voice signals with the cordless handset 6 between the telephone body 1 and the antenna 51 and the radio transmission / reception circuit unit for transmitting and receiving control data and voice data with radio waves. A circuit unit. Details of the configuration of the adapter 5 will be described later.

  The cordless handset 6 includes an antenna 61 and a wireless transmission / reception circuit unit for transmitting and receiving control data and call voice data to and from the adapter 5 by radio waves. Microphone 63, a key operation unit 64 such as a numeric keypad, and a display unit 65 made of, for example, an LCD. Further, the cordless handset 6 incorporates a rechargeable secondary battery as a power source.

  An AC plug 71 is connected to the charging base 7 through an AC cord 72. When the AC plug 71 is inserted into an AC outlet, commercial AC power is supplied to the charging base 7. The charging stand 7 is provided with an electrode connected to the charging terminal of the cordless handset 6 when the cordless handset 6 is placed, and the secondary battery of the cordless handset 6 is charged by a commercial AC power source. It is comprised so that.

  Next, detailed configurations of the telephone body 1, the adapter 5, and the cordless handset 6 will be described. Since the cord connection type handset 2 has the same configuration as the conventional one, the detailed configuration thereof is omitted here.

  FIG. 3 is a block diagram illustrating a hardware configuration example of the telephone body 1. The telephone body 1 includes a data transmission / reception unit 101, a codec unit 102, a control unit 103 composed of a microcomputer including a CPU (Central Processing Unit) and a memory, a call circuit unit 104, a power receiving circuit 105, and a power circuit. 106, an adapter connection detection circuit 107, and a handset interface 108.

  A terminal 16 connected to the main device through the connection cable 4 is connected to the data transmission / reception unit 101 and is connected to the power supply circuit 106 through the power receiving circuit 105. The power receiving circuit 105 receives a DC voltage sent from the main device and supplies it to the power supply circuit 106. The power supply circuit 106 generates a power supply voltage to be supplied to each part of the telephone body 1 from the received DC voltage, and supplies the power supply voltage to each part.

  The data transmitting / receiving unit 101 transfers the control signal and call voice signal received from the main device to the codec unit 102 and supplies the control signal and call voice signal received from the codec unit 102 to the main device through the terminal 16. .

  The codec unit 102 decodes the control signal received from the data transmitting / receiving unit 101 and supplies the decoded control signal to the control unit 103, and also decodes the call voice signal received from the data transmitting / receiving unit and supplies the decoded signal to the calling circuit unit 104. The codec unit 102 also codes (encodes) the control signal sent from the control unit 103 and sends it to the data transmission / reception unit 101, and also codes the call voice signal sent from the call circuit unit 104. The data is transmitted to the data transmitting / receiving unit 101.

  The control unit 103 is connected to the key operation unit 12, the LCD 13, and the hook switch 15, and the control signal terminal 11 b of the terminal unit 11 is connected via the adapter connection detection circuit 107.

  When the cord connection type handset 22 is connected to the terminal unit 11 and the hook switch 15 is enabled, the control unit 103 makes a call based on the on / off state of the hook switch 15 (on-hook or off-hook state). Detect incoming response. Then, when a telephone number is input through the key operation unit 12 after detecting the off-hook state, the outgoing call processing addressed to the input telephone number is performed. And the control part 103 displays the telephone number input at the time of transmission on a screen of LCD13, or displays a clock. Although not shown, the control unit 103 also performs a ringer ringing process when an incoming call is received.

  As will be described later, when the adapter 5 is connected to the terminal unit 11, the adapter connection detection circuit 107 detects that and notifies the control unit 103. When the control unit 103 receives a notification that the adapter 5 is connected from the adapter connection detection circuit 107, the control unit 103 ignores the on / off state of the hook switch 15 and receives the control signal via the control signal terminal 11b of the terminal unit 11. Based on the above, an on-hook state and an off-hook state are detected. When the adapter 5 is connected, the control unit 103 also receives the telephone number information at the time of outgoing call through the adapter 5.

  When the adapter 5 is connected to the terminal unit 11, the control signal exchanged between the adapter 5 and the control unit 103 passes through the adapter connection detection circuit 107 as it is.

  The call circuit unit 104 supplies the call voice signal received from the codec unit 102 to the call signal terminal 11 a of the terminal unit 11 through the handset interface 108. When a hands-free call mode is designated through the user's key operation unit 12, the call circuit unit 104 supplies the sound to the built-in speaker 110 through the amplifier 109 for sound output.

  The call circuit unit 104 also receives a call voice signal transmitted through the call signal terminal 11 a of the terminal unit 11 through the handset interface 108 and supplies it to the codec unit 102. In the hands-free call mode, an audio signal collected by the microphone 111 is supplied to the call circuit unit 104 through the amplifier 112 and passed to the codec unit 102.

  In the telephone body 1 of this embodiment, the terminal unit 11 includes the call terminal 11a, the control signal terminal 11b, and the power supply terminal 11c as described above. A power supply voltage from the power supply circuit 106 is supplied to the power supply terminal 11c, and this power supply voltage is supplied to the adapter 5 as a power supply voltage for the internal circuit.

  The control signal terminal 11 b and the power supply terminal 11 c are terminals that are not used when the curl cord 3 to which the cord connection type handset is connected is connected to the terminal portion 11. That is, when the cord connection type handset 2 is connected to the terminal portion 11, the control signal terminal 11b and the power supply terminal 11c are not connected to the cord connection type handset 2 but are free ends. .

  The adapter connection detection circuit 107 detects that the terminal 11b becomes active when power is supplied to the adapter 5 through the power supply terminal 11c when the adapter 5 is connected to the terminal portion 11, and the adapter 11 5 is connected to the terminal unit 11, and the detection output is notified to the control unit 103.

  Next, a configuration example of the adapter 5 will be described with reference to FIG. That is, as shown in FIG. 4, the adapter 5 of this embodiment includes a codec unit 52 connected to the call signal terminal 11a and the control signal terminal 11b of the terminal unit 11 of the telephone body 1, and a radio transmission / reception control unit 53. And a power supply circuit 54. The power circuit 54 is connected to the power supply terminal 11 c of the terminal portion 11 of the telephone body 1.

  The codec unit 52 codes the control signal and the call signal from the telephone body 1 and transfers them to the wireless transmission / reception control unit 53, and also decodes the control signal and the call signal from the wireless transmission / reception control unit 53, To pass.

  The wireless transmission / reception control unit 53 is for performing wireless transmission / reception with the cordless handset 6 via the antenna 51. Although not shown, the wireless transmission / reception control unit 53 includes a wireless transmission / reception circuit and a control circuit including a microcomputer. .

  As described above, when the adapter 5 is connected to the terminal unit 11 of the telephone body 1, power is supplied to the power supply circuit 54 from the telephone body 1, and a power supply voltage is supplied to the codec unit 52 and the wireless transmission / reception control unit 53. As a result, the control signal terminal 11b of the terminal unit 11 becomes active, so that the adapter connection detection circuit 107 of the telephone body 1 detects that the adapter 5 is connected to the terminal unit 11 by detecting this. .

  Next, a configuration example of the cordless handset 6 will be described with reference to FIG. As shown in FIG. 5, the cordless handset 6 of this embodiment includes a radio transmission / reception control unit 601, a codec unit 602, amplifiers 603 and 604, a speaker 62, a microphone 63, and a charging circuit connected to an antenna 61. 605, a secondary battery 606, and a power supply circuit 607.

  The wireless transmission / reception control unit 601 is for performing wireless transmission / reception with the adapter 5 via the antenna 61. Although not shown, the wireless transmission / reception control unit 601 includes a wireless transmission / reception circuit and a control circuit including a microcomputer.

  The codec unit 602 obtains a call voice signal by decoding the call signal from the telephone body 1 sent from the adapter 5 and supplies the call voice signal to the speaker 62 through the amplifier 603 to reproduce sound. Further, the transmission voice signal collected by the microphone 63 is supplied to the codec unit 602 through the amplifier 604, coded, transferred to the wireless transmission / reception control unit 601, and wirelessly transmitted from the wireless transmission / reception control unit 601 to the adapter 5. The

  The cordless handset 6 includes a charging terminal 66. When the cordless handset 6 is placed on the charging base 7, the charging terminal 66 is connected to the charging electrode of the charging base 7. Therefore, when the cordless handset 6 is placed on the charging stand 7, the secondary battery 606 is charged by the charging circuit 605. Then, the voltage from the secondary battery 606 is supplied to the power supply circuit 607, and the power supply circuit 607 generates the power supply voltage to be supplied to each unit.

  The configuration of the cordless handset 6 described above is the same as that of a conventional cordless handset.

[Usage Mode of Telephone Terminal Device of Embodiment]
In the telephone terminal device of this embodiment, when the user connects the curl cord 3 connected to the cord connection type handset 2 to the terminal portion 11 of the telephone main body 1 as shown in FIG. Since the adapter connection detection circuit 107 of 1 does not detect the connection of the adapter 5, the control unit 103 is in a state of monitoring the state of the hook switch 15, and the telephone terminal device is used as a cord connection type handset type. become.

  As shown in FIG. 2, when the user connects the connection cord 5 a connected to the adapter 5 to the terminal portion 11 of the telephone body 1, the adapter 5 is connected by the adapter connection detection circuit 107 of the telephone body 1. Is detected, and this is notified to the control unit 103. For this reason, the control unit 103 ignores the state of the hook switch 15 and monitors a control signal obtained through the adapter 5, and the telephone terminal device is used as a cordless handset type.

  Therefore, when a user who has used a telephone terminal device as a cord connection type handset type wants to change to a cordless handset type telephone terminal device, the adapter 5 is not purchased instead of purchasing the whole telephone terminal device. Then, the cordless handset 6 and the charging stand 7 are purchased, and instead of the curl cord 3, the connection cord 5a of the adapter 5 is simply connected to the terminal portion 11 of the telephone body 1, and the telephone terminal device is cordless handset type. Can be changed.

[Modification]
In the above-described embodiment, the adapter 5 and the charging stand 7 are separate, but the configuration of the adapter can also be used as a charging stand. FIG. 6 is a diagram showing a configuration example of the telephone terminal device in that case.

  That is, in the case of this example, when the telephone terminal device is used as a cordless handset type, the connection cord 8a connected to the charging stand combined adapter 8 is connected to the terminal portion 11 of the telephone body 1.

  In the case of this example, an AC plug 8b is connected to the charging stand combination adapter 8, and the charging stand combination adapter 8 receives a commercial AC voltage from a commercial AC power source as a power supply voltage. For this reason, the charging stand combined adapter 8 does not need to be supplied with the power supply voltage from the telephone body 1, and as a result, the terminal portion 11 does not need to be provided with the terminal 11 c.

  Also in this example, when the adapter 8 is connected to the terminal portion 11, the adapter connection detection circuit 107 can detect that the connection terminal 11b is active, and the connection of the adapter 8 can be detected. .

  In addition, although the above example is a case where this invention is applied to the telephone terminal apparatus connected to the main apparatus of a button telephone system, it cannot be overemphasized that this invention is applicable also to the telephone terminal apparatus used independently. .

It is a figure for demonstrating embodiment of the telephone terminal device by this invention. It is a figure for demonstrating embodiment of the telephone terminal device by this invention. It is a block diagram which shows the structural example of the telephone main body of the telephone terminal device of embodiment. It is a block diagram which shows the structural example of the adapter of the telephone terminal device of embodiment. It is a block diagram which shows the structural example of the cordless handset of the telephone terminal device of embodiment. It is a figure for demonstrating other embodiment of the telephone terminal device by this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Telephone main body 2 Cord connection type handset 3 Curl cord 5 Adapter 6 Cordless handset 7 Charging stand 8 Charging stand combined adapter

Claims (3)

A telephone body provided with a terminal portion to which the other end side of the curl cord connected to the cord connection type handset at one end side is connected;
A cordless handset having a secondary battery as a power source and having a wireless transceiver;
An adapter having a wireless transmission / reception unit that is connected to the terminal portion of the telephone body instead of the cord connection type handset and wirelessly transmits and receives signals exchanged between the telephone body and the cordless handset; ,
With
The telephone body is
When the adapter is connected to the terminal portion, adapter connection detecting means for detecting that the adapter is connected to the terminal portion,
The telephone terminal apparatus characterized in that when the adapter connection detecting means detects that the adapter is connected to the terminal unit, the hook switch of the placement unit of the cord connection type handset is ignored. The telephone terminal device according to claim 1, wherein
The terminal portion includes a power supply terminal for supplying power to the adapter when the adapter is connected,
The telephone terminal apparatus, wherein the adapter connection detecting means detects whether or not the adapter is connected depending on whether or not power can be supplied through the power supply terminal. The telephone terminal device according to claim 1, wherein
The telephone terminal device, wherein the adapter includes a charging circuit that is connected to a commercial power source and charges the secondary battery of the cordless handset, and is also used as a charging base of the cordless handset.

Images