JP3839727B2 - Intercom device - Google Patents

Description

BACKGROUND OF THE INVENTION
The present invention relates to an interphone device, and more particularly, to an interphone device that can arbitrarily select a call made by a resident with a visitor from either a handset call or a hands-free call.
[Prior art]
Conventionally, as an interphone apparatus of this type, an exposure mounting type hands-free telephone television interphone (hereinafter referred to as a hands-free telephone television interphone forming a conventional example) disclosed in Japanese Patent Laid-Open No. 7-147676 has been proposed.
According to the conventional hands-free calling TV interphone, by enlarging the call push button (surface type call push button) provided in the main body, the resident's response operation at the time of calling from a visitor becomes easy, After this response operation, a hands-free call can be performed.
[Problems to be solved by the invention]
However, according to the conventional hands-free calling TV intercom, calls made by residents with visitors are limited to hands-free calling and may not be able to cope with suppression of howling that occurs during hands-free calling. There was a difficulty with.
The present invention has been made to solve the above-mentioned problems, and a call made by a resident with a visitor can be used as a handset call or a hands-free call, and these calls can be selected / switched / maintained. It is an object of the present invention to provide an intercom device that facilitates the above.
[Means for Solving the Problems]
In order to achieve the above-mentioned object, an intercom apparatus according to the present invention includes an entrance cordless handset having a call button for a visitor to operate when calling, and a handset for a resident who has responded to the call from the visitor to make a call. When the handset is hooked off, it is equipped with a room base unit that makes a handset call, and when the handset is hooked on, the handset makes a hands-free call when responding to a call from a visitor. A hands-free call button for ending the call when operated, and a control to maintain the handset call even if the hands-free call button is operated while the handset is hooked off and the hands-free call button is operated, and the hands-free call button is operated When the handset is hooked off during a handsfree call Includes a CPU for performing control to switch to the handset call.
According to such an intercom device, a call made by a resident made with a visitor who operates a call button of the entrance cordless handset, a handset call using the handset of the room base unit, a base unit microphone, and a base unit speaker This handset can be used for both hands-free calls when the handset is hooked off, when a hands-free call button provided at a predetermined position of the base unit of the room, for example, the grip of the handset, is operated. Depending on the difference, either one of the calling means is selected under the control of the CPU that detects the difference. Further, when a hands-free call button is operated during a handset call, the handset call is maintained under the control of the CPU that detects this. Further, when the handset is hooked off during a hands-free call, the handset call is switched under the control of the CPU that detects this.
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the interphone device of the present invention will be described with reference to the drawings.
FIG. 1 is an overall perspective view showing a configuration of an embodiment of an intercom apparatus according to the present invention. Usually, an entrance cordless handset 1 installed at a front door of a dwelling unit (hereinafter referred to as a front door) and a transmission line L1 are shown. It is connected to the entrance cordless handset 1 via, and is usually provided with a living room base phone 2 installed in the dwelling unit.
In the overall perspective view of FIG. 1, the entrance cordless handset 1 includes a call button 10 for operating (pressing operation) when a visitor at a front door calls a resident in a dwelling unit, and a visitor is a resident. Have a handset microphone 11 and handset speaker 12 used to make a phone call.
Further, in the overall perspective view of FIG. 1, the living room master unit 2 includes a handset 20 that is used by a resident who responds to a call from a visitor (response operation) to perform a handset call, and whether or not the handset 20 is picked up. Hook switch 21 that is hooked off / hooked on due to the mobile phone, the base unit microphone 22 and the base unit speaker 23 that are used by the resident who responds to the call from the visitor (responding operation) to perform a hands-free call, and the handset 20 grips 20a are provided, and a resident who confirms a call from a visitor responds to perform a handset call or a hands-free call. A hands-free call button 24. In addition, the main | base station speaker 23 also rings the ringing tone for alert | reporting the call from a visitor to a resident.
FIG. 2 is a block diagram showing a specific configuration according to an embodiment of the intercom apparatus of the present invention.
In the block diagram of FIG. 2, the entrance handset 1 includes the above-described call button 10, handset microphone 11, handset speaker 12, handset microphone 11 and handset speaker 12, and a handset interface circuit 14 described later. A slave unit communication circuit 13 for forming / blocking a communication line between them, a call button 10, and a slave unit interface circuit for forming a signal transmission line between the slave unit call circuit 13 and the transmission line L1 (hereinafter referred to as a slave unit interface circuit). , Referred to as a slave unit I / F) 14.
In the block diagram of FIG. 2, the room master unit 2 includes the above-described handset 20, hook switch 21, base unit microphone 22, base unit speaker 23, hands-free call button 24, and each component of the room base unit ( A CPU 25 for controlling the circuit), a ringing tone generating circuit 26 for controlling the CPU 25 to ring the ringing tone, and a CPU 25 for controlling the ringing tone, and the handset 20 and a parent unit interface circuit 29 described later. Is controlled by a CPU 25 and a base unit microphone 22 and a base unit speaker 23, which will be described later. A master phone call circuit for forming / blocking a call line with the master device interface circuit 29 (hereinafter referred to as a second master phone call circuit). .) 28 and a master unit interface circuit (hereinafter referred to as a master unit) for forming a signal transmission line between the CPU 25, the first master unit call circuit 27, the second master unit call circuit 28, and the transmission line L1. I / F.) 29.
In the intercom apparatus of the present invention configured as described above, a specific operation will be described below.
In the general perspective view of FIG. 1 and the block diagram of FIG. 2, when a visitor at the front door operates the call button 10 of the front handset 1, the handset I / F 14 shown in the block diagram of FIG. A calling signal is transmitted to the CPU 25 via the parent device I / F 29 of the living room parent device 2.
In the block diagram of FIG. 2, the CPU 25 of the living room master unit 2 that has detected the call signal from the front cordless handset unit 1 controls the ring tone generation circuit 26 to show the master unit speaker 23 shown in FIG. 2 and the overall perspective view of FIG. Make a ringing tone from.
Here, the call from the visitor at the front door was confirmed based on the ringing sound ringed by the main unit speaker 23 of the living room main unit 2 shown in the whole perspective view of FIG. 1 and the block diagram of FIG. When the handset 20 is picked up by a resident in the dwelling unit, the hook switch 21 is hooked off, and the CPU 25 shown in the block diagram of FIG. 2 detects this, the first base unit call circuit 27, the second base unit call circuit 28, only the first master phone call circuit 27 is controlled to control the handset 20, the first master phone call circuit, the master phone I / F 29, the transmission line L1, the slave phone I / F 14 of the front door slave device 1, By forming a call line between the handset microphone 11 and the handset speaker 12 via the handset call circuit 13 (hereinafter, this call line is referred to as a handset call line), the handset 2 used by a resident. Audio signals can be transmitted / received between 0 and the handset microphone 11 and handset speaker 12 used by the visitor, and a resident's handset call is performed with the visitor.
Further, when the hands-free call button 24 provided on the grip portion 20a of the handset 20 of the living room base unit 2 shown in the overall perspective view of FIG. The CPU 25 shown in the block diagram of FIG. 2 that has detected the continuation of the control to the first master phone call circuit 27, that is, the formation of the handset call line, maintains the handset call by the resident.
Further, during the above-described handset call, when the occupant returns the handset 20 of the room base unit 2 shown in the overall perspective view of FIG. 1 and the block diagram of FIG. 2 to the original position, the hook switch 21 is hooked on. When detecting this, the CPU 25 stops the control of the first base phone call circuit 27, that is, by shutting off the handset call line, the resident concludes the handset call.
On the other hand, the call from the visitor at the front door is confirmed based on the ringing sound generated by the master unit speaker 23 of the master unit 2 shown in the overall perspective view of FIG. 1 and the block diagram of FIG. When the hands-free call button 24 provided in the grip portion 20a of the handset 20 is operated by a resident in the dwelling unit, the CPU 25 that detects this operates the first master phone call circuit 27 and the second master phone. Of the call circuit 28, only the second parent device call circuit 28 is controlled to control the parent microphone 22 and the parent speaker 23, the second parent device call circuit, the parent device I / F 29, the transmission line L1, and the entrance. Forming a call line between the handset microphone 11 and handset speaker 12 via the handset I / F 14 and handset call circuit 13 of the device 1 (hereinafter, this call line is referred to as a hands-free call line). By the resident Audio signals can be transmitted and received between the main unit microphone 22 and the main unit speaker 23 used by the visitor and the sub unit microphone 11 and the sub unit speaker 12 used by the visitor. A call is made.
Further, during the hands-free call as described above, when the occupant picks up the handset 20 of the room master unit 2 shown in the overall perspective view of FIG. 1 and the block diagram of FIG. 2, the hook switch 21 is hooked off, The detected CPU 25 stops the control to the second master phone call circuit 28, that is, cuts off the hands-free call line, while controlling the first master phone call circuit 27 to form the handset call line. The call made by the resident with the visitor is switched from the hands-free call to the handset call. When the hands-free call button 24 provided on the grip 20a of the handset 20 shown in the overall perspective view of FIG. 1 is operated by the resident during the handset call switched from the hands-free call, FIG. The control of the first master phone call circuit 27 by the CPU 25 shown in the block diagram is continued, that is, the formation of the handset call line is continued, so that the handset call by the resident is maintained.
Furthermore, during a hands-free call as described above, when the hands-free call button 24 provided on the grip portion 20a of the handset 20 of the living room base unit 2 shown in the overall perspective view of FIG. When detecting this, the CPU 25 shown in the block diagram of FIG. 2 stops the control to the second master phone call circuit 28, that is, shuts off the hands-free call line, thereby terminating the hands-free call by the resident. Is done.
In one embodiment of the intercom apparatus of the present invention, a resident who has confirmed a call from a visitor performs a response operation to perform a hands-free call, and performs an operation (operation again) to end a hands-free call. A hands-free call button 24 is provided on the grip portion 20a of the handset 20 as shown in the overall perspective view of FIG. 1, but the hands-free call button 24 is provided in the main body of the living room main unit 2, that is, the main unit microphone 22. It can also be provided on the side where the master speaker 23 and the like are arranged, and the same effect as in the above-described embodiment of the present invention can be obtained.
Moreover, in one Example in the intercom apparatus of this invention, the image display function is used as the main unit 1 installed in the entrance unit 1 which is not equipped with the image pick-up function as the entrance unit set in the entrance, and the dwelling unit. The main unit 2 which is not provided is applied, but the entrance slave unit is provided with a camera for capturing an image of the vicinity of the visitor and the entrance as an image capturing function, and the entrance slave unit camera as an image display function. It is also preferable to apply a living room parent device provided with a monitor for outputting an image picked up in (1).
【The invention's effect】
As is apparent from the above description, according to the intercom device of the present invention, a call made by a resident made with a visitor who has operated the call button of the entrance cordless handset, using a handset of the room base unit. Can be used for both calls and hands-free calls using the main unit microphone and main unit speaker. These calls can be selected arbitrarily, for example, depending on the situation near the front of the entrance where the main unit is installed. / Switchable / maintainable, improving call quality.
[Brief description of the drawings]
FIG. 1 is an overall perspective view showing a configuration of an intercom apparatus according to an embodiment of the present invention.
FIG. 2 is a block diagram showing a specific configuration of an intercom apparatus according to an embodiment of the present invention.
[Explanation of symbols]
1 ... Entrance cordless handset 2 ... Living room master 10 ... Call button 20 ... Handset 20a ... (Handset) grip part 24 ... Hands-free call button 25 ... CPU

Claims (1)

The handset includes an entrance cordless handset (1) having a call button (10) for a visitor to operate when calling, and a handset (20) for a resident responding to the call from the visitor to make a call. And a living room base unit (2) for making a handset call when hooking off
Wherein the residential master station, in a state in which the handset is hooked on, performs a hands-free call and response operation to the call from the visitors, hands-free call button for making a final story is operated again (24) The handset is controlled to maintain the handset call even if the handsfree call button is operated while the handset is hooked off and the handsfree call button is operated. And a CPU (25) for performing control to switch to the handset call when the phone is hooked off .

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