JP2010278765A - Intercom device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an intercom device which improves the visibility of a wireless terminal without deteriorating the convenience of a living room master unit by displaying a different image according to the size of a monitor screen. <P>SOLUTION: Image data, which is received from an entrance slave unit 10 with a camera and imaged by the camera 101, is displayed on a monitor 207 of the living room master unit 20. Meanwhile, an image segmenting part 203 of the living room master unit 20 segments a portion of the image data imaged by the camera 101. Then, the segment image data that is segmented is transmitted, as image data for wireless terminal display, to a wireless terminal 30, and displayed on a monitor 303 of the wireless terminal 30. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an interphone apparatus including a camera-equipped entrance slave unit, a living room master unit, and a wireless terminal.

Conventionally, an intercom apparatus 110 configured as shown in FIG. 8 is known. This intercom device 110 includes an entrance slave unit 120 with a camera and a room master unit 130 that receives a video signal transmitted from the entrance slave unit 120 with a camera and can display the received video signal on a monitor. Yes.
The entrance child device 120 with a camera is used to call a resident and is mainly installed at the entrance of a dwelling unit. The room master unit 130 is used to respond to a call from the camera-equipped entrance slave unit 120, and is installed in the dwelling unit. The camera-equipped entrance slave unit 120 and the room master unit 130 are connected via a transmission line 150. The room master unit 130 is connected to a wireless terminal 140 on which an image from the entrance slave unit 120 with a camera is wirelessly transmitted from the room master unit 130 and displayed. The wireless terminal 140 can be carried by a resident and can respond to calls from the camera-equipped handset 120.

JP 2004-260390 A JP 2001-128157 A

  The intercom apparatus 110 has a camera-equipped handset 120 with a camera 1201 for imaging a visitor, a JPEG encoder 1202 for compressing a digital video signal output from the camera 1201, and a JPEG encoder 1202 for compression. And a transmission unit 1203 for transmitting JPEG data to the room master unit 130.

  The living room master unit 130 of the intercom device 110 includes a transmission unit 1301 for receiving the JPEG data transmitted from the transmission unit 1203 of the entrance unit with camera 120, a JPEG decoder 1302 for decompressing the received JPEG data, A monitor 1303 for displaying an image of the digital video signal expanded by the JPEG decoder 1302, a JPEG encoder 1304 for compressing the digital video signal expanded by the JPEG decoder 1302, and the JPEG data compressed by the JPEG encoder 1304 as a wireless terminal And a wireless module 1305 for wireless transmission to 140.

  The wireless terminal 140 includes a wireless module 1401 that receives JPEG data wirelessly transmitted from the living room master unit 130, a JPEG decoder 1402 that decompresses the JPEG data received by the wireless module 1401, and a digital video decoded by the JPEG decoder 1402. And a monitor 1403 for displaying signals.

In the interphone device 110 as described above, the digital video signal imaged and generated by the camera 1201 of the camera-equipped entrance slave unit 120 is compressed by the JPEG encoder 1202 to become compressed image data, that is, JPEG data. The data is transmitted from the transmission unit 1203 of the machine 120 to the transmission unit 1301 of the living room base unit 130 via the transmission line 150.
The JPEG data transmitted to the room master unit 130 is input from the transmission unit 1301 to the JPEG decoder 1302, and is expanded into a digital video signal. The image of the digital video signal is input to the monitor 1303 and displayed.
The expanded digital video signal is compressed into JPEG data by the JPEG encoder 1304 and wirelessly transmitted from the wireless module 1305 to the wireless terminal 140.
The JPEG data wirelessly transmitted from the wireless module 1305 of the living room base unit 130 to the wireless module 1401 of the wireless terminal 140 is decompressed by the JPEG decoder 1402 and input to the monitor 1403 and displayed.
In the intercom apparatus 110 having such a configuration, the same image is displayed on the monitor 1303 of the living room master unit 130 and the monitor 1403 of the wireless terminal 140.

  Here, when a camera 1201 of the entrance child device 120 with a camera that can be imaged with a wide angle of view (wide angle) is used, in the room base unit 130 having a large monitor screen, not only the face of the visitor but also the monitor 1303 is displayed. Since the clothes and belongings of the person are also displayed, it is possible to grasp the state of a wide range and is highly convenient. However, on the other hand, the monitor 1403 of the wireless terminal 140 displays the same image as the image displayed on the monitor 1303 of the living room base unit 130. The face of the person displayed on the monitor 1403 is so small that it is difficult to recognize who the person is and the visibility is low.

  The present invention has been made in view of the above-described problems, and by displaying different images depending on the size of the monitor screen, it is possible to wirelessly reduce the convenience of the living room master unit. An object of the present invention is to provide an intercom device with improved visibility in a terminal.

  In order to solve this problem, the present inventor proposes the following intercom apparatus.

The intercom device according to the present application is provided with a camera for capturing a visitor and a function of calling a resident, a monitor with a camera and a monitor for displaying an image captured by the camera, and a call from the camera with a camera. A wireless terminal having a function of responding to a call from the room slave unit having a function of responding, a monitor for displaying a captured image of the camera wirelessly transmitted from the room master unit, and the entrance unit with the camera; Is an intercom device having
The living room base unit has an image cutout unit that cuts out a part of the wide-angle image data captured by the camera received from the camera-equipped handset, and the cutout image data cut out by the image cutout unit The data is transmitted to the wireless terminal.
In such an intercom device, a part of the image data captured by the camera is cut out by the image cutout unit of the living room master unit, and the cutout image data cut out by the image cutout unit is used as image data for wireless terminal display. Can be sent to and displayed on the monitor of the wireless terminal. Thus, according to this intercom apparatus, different image data according to the size of the monitor screen is displayed, specifically, the image data captured by the camera received from the camera-equipped entrance unit has a large monitor screen. While being displayed on the monitor of the home master unit, the clipped image data, that is, the image data obtained by enlarging a part of the image data captured by the camera can be displayed on the monitor of the wireless terminal having a small monitor screen. Visibility in the wireless terminal can be improved without degrading convenience.

The present application also provides the following intercom apparatus.
This intercom apparatus responds to a call from a camera for capturing a visitor and a camera-equipped cordless handset having a function of calling a resident, a monitor for displaying an image captured by the camera, and a call from the camera-filled cordless handset And a wireless terminal having a function of responding to a call from the camera-equipped handset and a monitor that displays a captured image of the camera wirelessly transmitted from the living room master. Have.
The entrance unit with a camera includes an image cutout unit that cuts out part of image data captured by the camera, wide-angle image data captured by the camera, and cutout image data cut out by the image cutout unit. Transmitting means for alternately transmitting to the living room master unit, wherein the living room master unit displays on the monitor the image data captured by the camera received from the camera-equipped entrance unit, The cut-out image data cut out by the image cut-out means is transmitted to the wireless terminal.
In this intercom apparatus, a part of the image data captured by the camera is cut out by the image cutout means of the camera-equipped entrance slave unit, and the image data picked up by the camera and the cutout image data are alternately placed in the room by the transmission means. It is transmitted to the main unit. The room master unit displays the image data captured by the camera received from the camera-equipped slave unit on the monitor of the room master unit, and transmits the cut-out image data to the wireless terminal as image data for wireless terminal display. That is, in this intercom device, similar to the above intercom device, different image data corresponding to the size of the monitor screen is displayed. Specifically, the image data captured by the camera received from the camera-equipped entrance unit is displayed. While being displayed on the monitor of the room master unit having a large monitor screen, the cut-out image data, that is, the image data obtained by enlarging a part of the image data captured by the camera can be displayed on the monitor of the wireless terminal having a small monitor screen. The visibility of the wireless terminal can be improved without deteriorating the convenience of the living room master unit.

The image cutout unit may be configured in any way as long as it can cut out a part of the image data captured by the camera. For example, the image cutout unit cuts out the center of the image data captured by the camera. It may be.
According to such an image cutout means, the central portion of the image data displayed on the monitor of the living room master unit and the central portion of the image data displayed on the monitor of the wireless terminal coincide with each other at a fixed value. It becomes easy.

In addition, the image cutout unit may recognize a face portion of the image data captured by the camera and cut out the center portion of the face portion.
According to such an image cut-out means, the center of the cut-out image data becomes the center of the visitor's face portion, so that image data obtained by enlarging the visitor's face can be cut out reliably.

The present invention also provides the following intercom device.
This intercom apparatus responds to a call from a camera for capturing a visitor and a camera-equipped cordless handset having a function of calling a resident, a monitor for displaying an image captured by the camera, and a call from the camera-filled cordless handset And a wireless terminal having a function of responding to a call from the camera-equipped handset and a monitor that displays a captured image of the camera wirelessly transmitted from the living room master. Have.
The entrance child device with a camera has transmission means for transmitting image data captured by the camera to the living room parent device, and the camera of the entrance child device with the camera has a first angle of view. In addition, imaging is alternately performed at two types of field angles, ie, a second field angle that is narrower than the first field angle, and the transmission unit captures images at the first field angle. The image data captured at the second angle of view and the image data captured at the second angle of view are alternately transmitted to the room base unit. The room base unit is received from the camera-equipped entrance unit. The image data captured at the first angle of view is displayed on the monitor, while the image data captured at the second angle of view is transmitted to the wireless terminal.
According to such an intercom device, the camera of the camera-equipped entrance slave device alternates between two types of field angles, a first field angle and a second field angle that is narrower than the first field angle. Therefore, it is possible to obtain image data for displaying the main unit of the living room and image data for displaying the wireless terminal without image conversion, and smooth image data free from noise caused by image conversion. Can be obtained. In addition, similar to the above interphone device, it is possible to display different image data according to the size of the monitor screen, so that the visibility in the wireless terminal is improved without deteriorating the convenience in the living room base unit. Can do.

  According to the present invention, it is possible to provide an intercom device that improves the visibility of a wireless terminal without deteriorating the convenience of a living room base unit by displaying different images depending on the size of a monitor screen. Can do.

The block diagram which shows the whole structure of the intercom apparatus of 1st Embodiment. The figure which shows the flow of the image data of the intercom apparatus of 1st Embodiment. The block diagram which shows the whole structure of the intercom apparatus of 2nd Embodiment. The figure which shows the flow of the image data of the intercom apparatus of 2nd Embodiment. The figure which shows the whole structure of the intercom apparatus of 3rd Embodiment. The flowchart which shows the order of the imaging by the camera of the intercom apparatus of 3rd Embodiment. The figure which shows the flow of the image data of the intercom apparatus of 3rd Embodiment. The block diagram which shows the whole structure of the conventional intercom apparatus.

  Hereinafter, preferred embodiments of an intercom device of the present invention will be described in detail with reference to the drawings.

<First Embodiment>
The intercom apparatus 1 according to this embodiment is schematically configured as shown in FIG. The intercom apparatus 1 includes an entrance slave unit 10 with a camera, a living room master unit 20 that receives a video signal transmitted from the entrance slave unit 10 with a camera, and displays the received video signal on a monitor, and an entrance with a camera. It includes a wireless terminal 30 on which an image from the child device 10 is displayed by wireless transmission from the living room parent device 20.
The entrance unit 10 with a camera is used to call a resident and is mainly installed at the entrance of a dwelling unit. The room master 20 is used for responding to calls from the camera-equipped entrance slave 10 and is installed in the dwelling unit. The camera-equipped entrance slave unit 10 and the living room master unit 20 are connected via a transmission line 40. The wireless terminal 30 can be carried by a resident and can respond to calls from the camera-equipped entrance cordless handset 10, and is appropriately used at an appropriate location in the dwelling unit.

  Hereinafter, the configuration of the entrance slave device with camera 10, the parent room 20, and the wireless terminal 30 will be described. First, the configuration of the camera-equipped entrance slave unit 10 will be described.

  The camera-equipped entrance slave device 10 includes a camera 101 that images a visitor, a JPEG encoder 102, and a transmission unit 103.

The camera 101 captures an image of a visitor and can capture an image with a wide field angle of, for example, 170 °.
The JPEG encoder 102 compresses wide-angle image data output from the camera 101 and encodes it into compressed image data, that is, JPEG data.
The transmission unit 103 transmits the JPEG data output from the JPEG encoder 102 to the living room base unit 20 via the transmission line 40.

The room master 20 includes a transmission unit 201, a multiplexer 202, an image cutout unit 203, a serial communication unit 204, a wireless module 205, a JPEG decoder 206, and a monitor 207.
The transmission unit 201 receives a signal including JPEG data transmitted from the camera-equipped entrance slave device 10 via the transmission line 40.
The multiplexer 202 switches the output destination of the JPEG data received by the transmission unit 201, and outputs the JPEG data to at least one of the image cutout unit 203 and the JPEG decoder 206.

The image cutout unit 203 cuts out a part of JPEG data received from the multiplexer 202.
The serial communication unit 204 controls transmission of the cut-out JPEG data cut out by the image cut-out unit 203.
The wireless module 205 is for wirelessly transmitting the cut-out JPEG data to the wireless terminal 30.

The JPEG decoder 206 decompresses the JPEG data received from the multiplexer 202 and outputs image data.
The monitor 207 is a monitor having a size of about 4 to 5 inches, for example, and displays the image data output from the JPEG decoder 206.

  The wireless terminal 30 includes a wireless module 301 that receives a signal including JPEG data wirelessly transmitted from the living room master 20, and a JPEG decoder 302 that decompresses the JPEG data received by the wireless module 301 and decodes the digital video signal. And a monitor 303 having a size of about 2 to 3 inches, for example, for displaying the digital video signal decoded by the JPEG decoder.

  Next, the operation of the intercom device 1 configured as described above will be described. However, since the operation of the intercom apparatus 1 that calls the room base unit 20 from the camera-equipped main unit 10 and the response operation by the room base unit 20 is the same as the conventional one, the description is omitted here. A description will be given centering on the flow of signals output from the camera 101 based on the calling operation of the camera-equipped entrance slave device 10.

Wide-angle image data captured and generated at a wide angle of view by the camera 101 of the camera-equipped entrance child device 10 is input to the JPEG encoder 102.
The JPEG encoder 102 compresses wide-angle image data from the camera 101 and encodes it into JPEG data. The JPEG data output from the JPEG encoder 102 is transmitted from the transmission unit 103 to the living room master unit 20 via the transmission line 40.

The JPEG data transmitted from the entrance slave unit with camera 10 to the living room master unit 20 via the transmission line 40 is received by the transmission unit 201. The JPEG data received by the transmission unit 201 is input to the multiplexer 202.
The multiplexer 202 outputs the JPEG data received from the transmission unit 201 to either the image clipping unit 203 or the JPEG decoder 206.

  The image cutout unit 203 deletes the peripheral image from the captured image of the camera 101 from the JPEG data input from the multiplexer 202, and extracts a predetermined central image. That is, the center of the image is cut out to a predetermined size. The cut-out JPEG data cut out in this way is input to the serial communication unit 204.

  Cutout JPEG data input from the image cutout unit 203 to the serial communication unit 204 is wirelessly transmitted to the wireless terminal 30 via the wireless module 205.

On the other hand, JPEG data input from the multiplexer 202 to the JPEG decoder 206 is decompressed by the JPEG decoder 206 and displayed on the monitor 207.
That is, the monitor 207 of the living room master 20 displays the image data itself captured at a wide angle of view by the camera 101, so that not only the face of the visitor but also the clothes and belongings of the person are displayed, which is wide. The state of the range can be grasped, and a highly convenient image is displayed.

The cut-out JPEG data wirelessly transmitted from the wireless module 204 of the living room master unit 20 to the wireless module 301 of the wireless terminal 30 is decompressed by the JPEG decoder 302 and displayed on the monitor 303.
That is, the monitor 303 displays an image obtained by cutting out the center of the image captured by the camera 101 into a predetermined size, that is, an image in which the visitor's face is enlarged, so that an image that can easily recognize the visitor's face is displayed. Will be displayed.

In the intercom apparatus 1 of the present embodiment as described above, as shown in FIG. 2, the image data (A) captured by the camera 101 of the camera-equipped entrance slave device 10 is transmitted to the living room master device 20.
The image data (A) is displayed on the monitor 207 of the living room master 20. On the other hand, image data (B), which is cut-out image data obtained by cutting out a part of the image data (A) by the image cut-out unit 203 of the room master 20, is wirelessly transmitted from the room master 20 as image data for wireless terminal display. Since it is transmitted to the terminal 30, the image data (B) is displayed on the monitor 303 of the wireless terminal 30.

  That is, according to the intercom apparatus 1 of the present embodiment, the image data captured by the camera 101 received from the camera-equipped handset 10 is displayed on the monitor 207 of the room base unit 20 having a large monitor screen, while the cut-out image is displayed. Data, that is, image data obtained by enlarging a part of image data captured by the camera 101 can be displayed on the monitor 303 of the wireless terminal 30 having a small monitor screen, so that different image data depending on the size of the monitor screen Therefore, the visibility of the wireless terminal 30 can be improved without reducing the convenience of the living room master unit 20.

In addition, since the image cutout unit 203 of this embodiment cuts out the central part of the JPEG data input from the multiplexer 202, the central part of the image data displayed on the monitor 207 of the living room master unit 20, Since the center of the image data displayed on the monitor 303 of the wireless terminal 30 matches with a fixed value, it can be easily cut out.
The image cutout unit 203 according to the present embodiment has been described as described above. However, as long as a part of image data captured by the camera 101 that is JPEG data input from the multiplexer 202 is cut out. For example, the face portion of the image data captured by the camera 101 may be recognized and cut out with the center portion of the face portion as the center. According to such an image cutout unit, since the center of the cut out image data is the center of the visitor's face portion, it is possible to cut out image data obtained by enlarging the visitor's face reliably.

The interphone device 1 described above may be configured such that by operating the wireless terminal 30 side, the image data displayed on the monitor 303 of the wireless terminal 30 can be reduced or enlarged, or the display range can be changed. Good.
Specifically, when an operation signal of the wireless terminal 30 is transmitted to the living room base unit 20, the image clipping unit 203 of the living room base unit 20 uses the wireless terminal 30 's image data for displaying the living room base unit. Image data with reduced / enlarged or changed display range is generated based on the operation signal, and the generated image data is transmitted from the living room master 20 to the wireless terminal 30 and displayed on the monitor 303 again. May be.

<Second Embodiment>
The intercom apparatus 2 according to this embodiment is schematically configured as shown in FIG. The intercom device 2 includes a camera-equipped entrance slave device 50, a living room master device 60, and a wireless terminal 30.
The intercom apparatus 2 of the present embodiment is different from the intercom apparatus 1 of the first embodiment in that image data for wireless terminal display is generated on the side of the entrance unit with camera, not on the side of the living room. .

  Hereinafter, the structure of the entrance child device 50 with a camera and the living room main | base station 60 different from 1st Embodiment is demonstrated. First, the configuration of the camera-equipped entrance slave unit 50 will be described.

  The entrance unit 50 with a camera includes a camera 501 that captures an image of a visitor, a JPEG encoder 502, an image cutout unit 503, a first multiplexer 504, and a transmission unit 505.

The camera 501 captures a visitor and can capture an image with a wide angle of view of, for example, 170 °.
The JPEG encoder 502 compresses wide-angle image data output from the camera 501 and encodes it into compressed image data, that is, JPEG data.
The image cutout unit 503 cuts out a part of JPEG data output from the JPEG encoder 502.
The first multiplexer 504 outputs the JPEG data output from the JPEG encoder 502 and the clipped JPEG data output from the image clipping unit 503 to the transmission unit 505 in order.
The transmission unit 505 transmits the JPEG data from the first multiplexer 504 to the living room base unit 60 via the transmission line 70.

The room master unit 60 includes a transmission unit 601, a second multiplexer 602, a serial communication unit 603, a wireless module 604, a JPEG decoder 605, and a monitor 606.
The transmission unit 601 receives a signal including JPEG data transmitted from the entrance unit 50 with a camera via the transmission line 40.
The second multiplexer 602 switches the output destination of the JPEG data received by the transmission unit 601, and outputs the JPEG data to either the serial communication unit 603 or the JPEG decoder 605.

The serial communication unit 603 controls transmission of JPEG data output from the second multiplexer 602.
The wireless module 604 is for wirelessly transmitting JPEG data to the wireless terminal 30.

The JPEG decoder 605 decompresses the JPEG data output from the second multiplexer 602 and outputs image data.
The monitor 606 is a monitor having a size of about 4 to 5 inches, for example, and displays the image data output from the JPEG decoder 605.

  Next, the operation of the intercom device 2 configured as described above will be described.

Wide-angle image data captured and generated with a wide angle of view by the camera 501 of the camera-equipped entrance cordless handset 50 is input to the JPEG encoder 502.
The JPEG encoder 502 compresses wide-angle image data from the camera 501 and encodes it into JPEG data. The JPEG data is input to both the image cutout unit 503 and the first multiplexer 504.
The image cutout unit 503 deletes the peripheral image from the image captured by the camera 501 from the JPEG data input from the JPEG encoder 502, and extracts a predetermined central image. That is, the center of the image is cut out to a predetermined size. The cut out cut JPEG data is input to the first multiplexer 504.

The first multiplexer 504 alternately outputs the JPEG data output from the JPEG encoder 502 and the cut-out JPEG data output from the image cutout unit 503 to the transmission unit 505.
The JPEG data output from the first multiplexer 504 is transmitted from the transmission unit 505 to the living room master unit 60 via the transmission line 70.

The JPEG data transmitted from the camera-facing handset 50 to the living room base unit 60 via the transmission line 70 is received by the transmission unit 601. The JPEG data received by the transmission unit 601 is input to the second multiplexer 602.
The second multiplexer 602 outputs the JPEG data received from the transmission unit 601 to either the serial communication unit 603 or the JPEG decoder 605. As a result, the JPEG data input to the second multiplexer 602 is distributed to either JPEG data for transmission to the wireless terminal 30 or JPEG data for display on the living room master unit.
Specifically, the cut-out JPEG data output from the image cutout unit 503 of the camera-equipped entrance slave unit 50 is output to the serial communication unit 603, and the JPEG data output from the JPEG encoder 502 of the camera-entry slave unit 50 is JPEG. The data is output to the decoder 605. That is, by the second multiplexer 602, the cut-out JPEG data output from the image cutout unit 503 of the camera-equipped entrance slave device 50 is converted into JPEG data for transmission to the wireless terminal 30 from the JPEG encoder 502 of the camera-equipped entrance slave device 50. The output JPEG data is distributed to JPEG data for display.

JPEG data input from the second multiplexer 602 to the serial communication unit 603 is wirelessly transmitted from the wireless module 604 to the wireless terminal 30.
The JPEG data wirelessly transmitted from the wireless module 604 of the office master 60 to the wireless module 301 of the wireless terminal 30 is decompressed by the JPEG decoder 302 and displayed on the monitor 303.

  On the other hand, the JPEG data input from the second multiplexer 602 to the JPEG decoder 605 is expanded by the JPEG decoder 605 and displayed on the monitor 606.

In the intercom apparatus 2 of the present embodiment as described above, a part of the image data captured by the camera 501 is cut out to a predetermined size by the image cutout unit 503 of the camera-equipped entrance cordless handset 50, as shown in FIG. The image data (A) picked up by the camera 501 and the image data (B) which is the cut-out image data cut out by the image cut-out unit 503 are transferred from the transmission unit 505 of the camera-equipped entrance child device 50 to the living room master unit 60. They are transmitted alternately. In the room master unit 60, the image data (A) captured by the camera 501 received from the camera-equipped slave unit 50 is displayed on the monitor 606 of the room base unit 60, and the cut-out image data (B) is displayed for wireless terminal display. The image data is transmitted to the wireless terminal 30.
That is, also in the intercom device 2 of the present embodiment, the image data captured by the camera 501 received from the camera-equipped handset 50 is displayed on the monitor 606 of the room base unit 60 having a large monitor screen, while the cut-out image data is displayed. That is, since image data obtained by enlarging a part of image data captured by the camera 501 can be displayed on the monitor 303 of the wireless terminal 30 having a small monitor screen, different image data corresponding to the size of the monitor screen is displayed. Therefore, the visibility of the wireless terminal 30 can be improved without reducing the convenience of the living room master unit 60.

Also, the image cutout unit 503 of the present embodiment cuts out the central part of the JPEG data input from the JPEG encoder 502, like the image cutout unit 203 of the first embodiment. Since the center portion of the image data displayed on the monitor 606 and the center portion of the image data displayed on the monitor 303 of the wireless terminal 30 match with a fixed value, it can be easily cut out.
Note that the modification of the image cutout unit 203 of the first embodiment is also common to the image cutout unit 503.

Also in the second embodiment, similarly to the first embodiment, by operating the wireless terminal 30 side, the image data displayed on the monitor 303 of the wireless terminal 30 is reduced or enlarged, or the display range is reduced. You may comprise so that it can change.
Specifically, the operation signal of the wireless terminal 30 is transmitted to the entrance child device 50 with the camera via the living room master device 60, and the operation signal of the wireless terminal 30 is transmitted to the entrance child device 50 with the camera. In such a case, the image cutout unit 503 of the camera-equipped entrance slave device 50 reduces or enlarges or changes the display range based on the operation signal of the wireless terminal 30 based on the image data for displaying the parent device. Data may be generated, and the generated image data may be transmitted from the camera-equipped entrance slave unit 50 to the wireless terminal 30 via the living room master unit 60 and displayed on the monitor 303.

<Third Embodiment>
The intercom apparatus 3 according to this embodiment is schematically configured as shown in FIG. The intercom device 3 includes a camera-equipped entrance slave device 80, a living room master device 90, and a wireless terminal 30.
The intercom apparatus 3 of the present embodiment is common to the intercom apparatus 2 of the second embodiment in that image data for wireless terminal display is generated on the entrance unit with camera, but the image data for wireless terminal display is converted into an image. The difference is that it is generated not by the cutout unit but by the camera itself.

  Hereinafter, the structure of the entrance child device 80 with the camera and the living room parent device 90 different from the above embodiment will be described. First, the configuration of the camera-equipped entrance slave unit 80 will be described.

The camera 801 alternately captures images at two types of field angles: a first field angle and a second field angle that is narrower than the first field angle. The camera 801 alternately performs imaging with a wide angle of view such as 170 ° and imaging with a narrower angle of view. From the camera 801, image data captured at a wide angle of view and image data captured by enlarging a part of the image data are alternately output.
The JPEG encoder 802 compresses two types of image data output from the camera 801 and encodes them into compressed image data, that is, JPEG data.
The transmission unit 803 transmits JPEG data output from the JPEG encoder 802 to the living room master device 90 via the transmission line 100.

The living room master 90 includes a transmission unit 901, a multiplexer 902, a serial communication unit 903, a wireless module 904, a JPEG decoder 905, and a monitor 906.
The transmission unit 901 receives a signal including JPEG data transmitted from the entrance unit with camera 80 via the transmission line 100.
The multiplexer 902 switches the output destination of the JPEG data received by the transmission unit 901, and outputs the JPEG data to either the serial communication unit 903 or the JPEG decoder 905.

The serial communication unit 903 controls transmission of JPEG data input from the multiplexer 902.
The wireless module 904 is for wirelessly transmitting JPEG data from the serial communication unit 903 to the wireless terminal 30.

The JPEG decoder 905 decompresses the JPEG data received from the multiplexer 902 and outputs image data.
The monitor 906 is a monitor having a size of about 4 to 5 inches, for example, and displays the image data output from the JPEG decoder 905.

  Next, the operation of the intercom device 3 configured as described above will be described.

The camera 801 of the camera-equipped entrance slave unit 80 alternately captures images at two types of field angles, ie, a first field angle and a second field angle, based on control of a not-shown entrance unit with camera CPU.
Specifically, the imaging by the camera 801 is executed as shown in the flowchart of FIG.
When a visitor performs a call operation of the camera-equipped slave unit 80 (ST101), the room master unit CPU (not shown) sends an imaging start command from the camera 801 to the camera-entry slave unit 80 (ST102). Further, the room master unit CPU starts a timer provided in the room master unit 90.
Receiving the imaging start command, the camera-equipped entrance slave unit CPU transmits an imaging start command for starting imaging at the first angle of view to the camera 801 (ST103). Imaging with the first angle of view is performed until a predetermined time (for example, 33 ms) has elapsed (ST104: No). When the predetermined time has elapsed (ST104: Yes), the camera-equipped entrance slave unit CPU transmits an imaging start command for starting imaging at the second angle of view to the camera 801 (ST105). Imaging with the second angle of view is performed until a predetermined time has elapsed (ST106).
When the predetermined time has elapsed (ST106: Yes), the timer counts up (ST107: Yes) and the call is still in progress, or the timer has not yet counted up (ST107: No) When the talk is not ended (ST108: No), an imaging start command for starting imaging at the first angle of view is transmitted again from the camera-equipped entrance slave unit CPU to the camera 801 (ST103).
On the other hand, if the timer counts up (ST107: Yes) and the call is not in progress, or if the timer has not yet counted up (ST107: No) and the call ends (ST108: Yes), An imaging end command is sent from the master unit CPU to the entrance slave unit with camera 80 (ST109).

Two types of image data captured and generated by the camera 801 as described above are input to the JPEG encoder 802.
The JPEG encoder 802 compresses the image data from the camera 801 and encodes it into JPEG data. The JPEG data output from the JPEG encoder 802 is transmitted from the transmission unit 803 to the living room master device 90 via the transmission line 100.

The JPEG data transmitted from the entrance slave unit with camera 80 to the living room master unit 90 via the transmission line 100 is received by the transmission unit 901 and input to the multiplexer 902.
The multiplexer 902 outputs the JPEG data received from the transmission unit 901 to either the serial communication unit 903 or the JPEG decoder 905. As a result, the JPEG data input to the multiplexer 902 is distributed to either the JPEG data for transmission to the wireless terminal 30 or the JPEG data for display on the living room master unit 90.
Specifically, JPEG data imaged at the first angle of view by the camera 801 is output to the JPEG decoder 905, and JPEG data imaged at the second angle of view by the camera 801 is output to the serial communication unit 903. It is like that. That is, the multiplexer 902 distributes wide-angle JPEG data captured at a wide angle of view to JPEG data for display, and JPEG data obtained by enlarging a part of the JPEG data for transmission to the wireless terminal 30. Yes.

The JPEG data input from the multiplexer 902 to the serial communication unit 903 is wirelessly transmitted from the wireless module 904 to the wireless terminal 30.
The JPEG data wirelessly transmitted from the wireless module 904 of the living room master unit 90 to the wireless module 301 of the wireless terminal 30 is decompressed by the JPEG decoder 302 and displayed on the monitor 303.

  On the other hand, JPEG data input from the multiplexer 902 to the JPEG decoder 905 is expanded by the JPEG decoder 905 and displayed on the monitor 906.

In the interphone device 3 according to the present embodiment as described above, image data captured at a wide angle of view by the camera 801 (image data captured at a first angle of view) and a part of the image data are enlarged and captured. Image data (image data captured at the second angle of view) is alternately generated, and as shown in FIG. 7, the image data (A) captured at the first angle of view by the camera 801 and the second The image data (B) imaged at the angle of view of the camera is alternately transmitted from the transmission unit 803 of the camera-equipped entrance slave unit 80 to the room master unit 90. In the room master unit 90, the image data (A) captured at the first angle of view by the camera 801 received from the camera-equipped slave unit 80 is displayed on the monitor 906 of the room master unit 90 having a large monitor screen. The image data (B) imaged at the angle of view is transmitted to the wireless terminal 30 as image data for wireless terminal display.
That is, even in the intercom device 3 according to the present embodiment, different image data corresponding to the size of the monitor screen can be displayed, and visibility in the wireless terminal 30 can be improved without deteriorating convenience in the living room master unit 90. Can be improved.
Furthermore, in the intercom device 3 of the present embodiment, unlike the above-described embodiment, the image clipping unit does not generate image data for wireless terminal display, but the room base unit by the camera 801 itself of the entrance unit with camera 80. Since image data for display and image data for wireless terminal display are generated, it is possible to obtain image data for displaying the parent device and image data for wireless terminal display without image conversion. And smooth image data free from noise due to image conversion can be obtained.

  The room master unit 20, 60, 90 in the first to third embodiments as described above may be configured to record image data for displaying the room master unit or image data for displaying the wireless terminal. Good.

1, 2, 3, 110 ·· Interphone device, 10, 50, 80, 120 · · Entrance unit with camera, 20, 60, 90, 130 · · Base unit, 30, 140 · · Wireless terminal, 40, 70, 100, 150 ... Transmission line, 101, 501, 801, 1201 ... Camera, 102, 502, 802, 1202, 1304 ... JPEG encoder, 103, 201, 505, 601, 803, 901, 1203, 1301 ..Transmission unit 202,504,602,902..Multiplexer 203,503..Image cutout unit (image cutout means) 204,603,903 ..Serial communication unit 205,301,604,904,1305 1401 ··· Wireless module, 206, 302, 605, 1302, 1402 · · JPEG deco Da, 207,303,606,906,1303 ... monitor.

Claims (5)

Provided with a camera for capturing a visitor and a function of calling a resident, a monitor with a camera for displaying a captured image of the camera, and a function for responding to a call from the camera with a camera In an intercom apparatus having a living room base unit, a monitor that displays a captured image of the camera wirelessly transmitted from the room base unit, and a wireless terminal that has a function of responding to a call from the entrance unit with the camera,
The living room base unit has an image cutout unit that cuts out a part of the wide-angle image data captured by the camera received from the camera-equipped entrance unit, and the cutout image data cut out by the image cutout unit Transmitting to the wireless terminal;
Intercom device. Provided with a camera for capturing a visitor and a function of calling a resident, a monitor with a camera for displaying a captured image of the camera, and a function for responding to a call from the camera with a camera In an intercom apparatus having a living room base unit, a monitor that displays a captured image of the camera wirelessly transmitted from the room base unit, and a wireless terminal that has a function of responding to a call from the entrance unit with the camera,
The camera-equipped entrance cordless handset, an image cutout means for cutting out a part of wide-angle image data captured by the camera;
Transmission means for alternately transmitting image data picked up by the camera and cut-out image data cut out by the image cut-out means to the living room master unit,
The living room master unit displays the image data captured by the camera received from the camera-equipped slave unit on the monitor, and transmits the cut-out image data to the wireless terminal.
Intercom device. The image cutout means cuts out a central portion of image data captured by the camera,
The intercom apparatus according to claim 1 or 2. The image cutout means recognizes a face portion from image data captured by the camera, and cuts out the center portion of the face portion.
The intercom apparatus according to claim 1 or 2. Provided with a camera for capturing a visitor and a function of calling a resident, a monitor with a camera for displaying a captured image of the camera, and a function for responding to a call from the camera with a camera In an intercom apparatus having a living room base unit, a monitor that displays a captured image of the camera wirelessly transmitted from the room base unit, and a wireless terminal that has a function of responding to a call from the entrance unit with the camera,
The entrance unit with camera has a transmission means for transmitting image data captured by the camera to the room master unit,
The camera of the camera-equipped entrance-communicator alternately captures images at two types of field angles, a first field angle and a second field angle that is narrower than the first field angle. And
The transmission means is configured to alternately transmit image data captured at the first angle of view and image data captured at the second angle of view to the living room master unit,
The living room master unit displays the image data captured at the first angle of view received from the camera-equipped slave unit on the monitor, while the image data captured at the second angle of view is displayed on the monitor. Send to a wireless device,
Intercom device.

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