JPH0374955A - message storage device - Google Patents

Abstract

PURPOSE:To transmit a message even at absence by connecting a storage memory section between plural message input/output units each of which is composed of an interphone, a video input section and a video display section via an interphone line connection section. CONSTITUTION:When a message is outputted from one of called party message input/output units MIOU 18, it is detected by a control signal detection section 4, and an AV signal from an audio/video(AV) signal branching/composing section 13 is stored in a prescribed address of a memory 8 with a time message addition section 16 via an AV signal coding changeover switch 14 and a coding section 16 from a line connection section 3 in cooperation with a line connection control section 5, a management control section 5 and a message management section 10. When a caller MIOU 18 is hooked off to select the called MIOU, it is detected by the control signal detection section 4, and the line connection control section 5, the management control section 5 and the message management section 10 read in cooperation the memory 8 to detect the AV signal by a decoding section 7 and the signal is sent to the MIOU 17 via the line connection section 3 and the audio video(AV) signal branching/composing section 13. Thus, the message is surely sent even at absence.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a message storage device used in a centrally managed intercom of a building or housing complex having a large number of offices and residences.

(Prior Art) In recent years, centrally managed intercoms have come into widespread use in apartment complexes due to safety concerns.

The conventional centralized management type intercom will be explained below.

FIG. 10 is a schematic block diagram of a conventional centralized management type intercom.

1 is the calling side intercom, 2 is the called side intercom, 3
is an intercom line connection section that selectively connects the calling side intercom 1 and the called side intercom 2;

4 is a control signal detection section that detects a control signal input from the calling side intercom 1; and 5 is a line connection control section that controls the intercom line connection section 3 based on the output of the control signal detection section 4.

The operation of the intercom configured as described above will be explained below.

First, from the calling side intercom 1, input the number of the person you want to talk to from the called side intercom 2 using the control key, it is detected by the control signal detection unit 4, and the line connection control unit 5
The 0 line connection control unit 5 issues an instruction to the intercom line connection unit 3.

A line connection is established between the calling side intercom 1 and the called side intercom 2 selected by the intercom caller.

At the same time, a call is made to the selected intercom 2 on the called side.

Then, when the selected called intercom 2 goes off-hook in response to the call, the calling intercom 1 and the called intercom 2 are connected via the intercom line connection section 3 and can communicate with each other.

(Problem to be Solved by the Invention) However, in the conventional configuration described above, if the called party selected by the calling side intercom is absent or does not answer, the caller must come to visit the telephone line again or It had the disadvantage that it required time and effort to communicate the business through other means.

The purpose of the present invention is to solve the conventional drawbacks, to make it possible to convey a message to a visitor by video and voice even when the visitor is absent, and to record the visitor's video and voice message, thereby further improving message transmission. It is an object of the present invention to provide a message storage device that is rational.

(Means for Solving the Problems) A message storage device of the present invention includes an intercom line connecting section that is connected to a plurality of intercom lines and selectively connects the plurality of intercom lines, and a control input from the plurality of intercom lines. A control signal detection section that detects signals and converts them into digital signals, a line connection control section that controls an intercom line connection section, and an audio signal encoding section that converts analog voice signals from multiple intercom lines into digital voice codes. and a video signal encoding unit that converts analog video signals from a plurality of intercom lines into digital video codes.

A storage memory section that stores the digital audio code and digital video code output from the encoding section, an audio signal decoding section that converts the digital audio code output from the storage memory section into an analog audio signal, and a storage memory. a decoding unit comprising a video signal decoding unit that converts the digital video code output from the unit into an analog video signal;
An intercom consisting of a management control unit that manages the status of a plurality of intercom lines, a message management unit that controls input/output of digital audio codes and digital video codes to a storage memory unit, an audio input/output unit, and a control signal input unit. The message input/output unit includes a video input section, and a video display section that displays a video signal sent from a video input section similar to the video input section or a storage memory section via an intercom line connection section. The first message input/output unit is equipped with an ink-pump consisting of an audio input/output section and a control signal input section, and a video input section; A video input section similar to the video input section provided in the second message input/output unit or a video display section that displays video signals sent from the storage memory section via the interphone line connection section. It is equipped with a second message input/output unit consisting of.

(Function) With the above configuration, the user of the intercom line can store and leave voice and video messages in the storage memory section. You can also receive and receive stored audio and video messages.

(Example) An example of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of a message storage device in one embodiment of the present invention. In addition, in this embodiment, the same numbers are attached to the same components as the conventional configuration described above.

In FIG. 1, reference numeral 17 denotes a calling side message input/output unit; 1 calling side intercom 1. A video input section 11a composed of a C0D (charge coupled device), an image pickup tube, etc.
The image display unit 12a includes a CRT (cathode ray tube), a liquid crystal display panel, or the like.

18 is a called side message input/output unit, and a called side intercom 2. A video input section 11b similar to the video input section 11a, and a video display section 12b similar to the video display section 1.2a.
It is equipped with 3 is an intercom line connection unit that selectively connects a plurality of intercom lines; 4 is a control signal detection unit that detects control signal input from the intercom; 5 is a line connection control unit that controls the intercom line connection unit; 6 is an analog video signal an encoding section 7 consisting of a video signal encoding section 6a that converts the analog audio signal into a digital video code and an audio signal encoding section 6b that converts the analog audio signal into a digital audio code;
8 is a decoding unit consisting of a video signal decoding unit 7a that converts digital video codes into analog video signals and an audio signal decoding unit 7b that converts digital audio codes into analog audio signals, and 8 is a storage that stores digital audio codes. 9 is a memory section and a management control section.

10 is a message management section; 13 is an audio signal/video signal separation/synthesis section that separates and synthesizes an audio signal and a video signal; 14 is an audio signal/video signal encoding changeover switch that switches input signals to the encoding section 6; Reference numeral 15 denotes an audio signal/video signal decoding switch for switching the input signal to the decoding section 7, and 16 indicates a time stamp for adding the current time to the message when the message is stored in the storage memory section 8. The time message adding sections 19a, ] and 9b are a first video memory and a second video memory, respectively.

Regarding the message storage device configured as above,
The operation will be explained below according to the block diagram (FIG. 1) and flowcharts (FIGS. 2 to 8).

First, the message storage operation from the first called side message input/output unit 18 will be explained (FIG. 2).

In the initial state, the audio signal/video signal encoding changeover switch 14 is not connected to either the video signal encoding section 6a side (G) or the audio signal encoding section 6b side D').

In this state, the intercom 2 on the called side is taken off-hook and a message storage request control signal is input (Step E). The control signal detection section 4 detects the control signal and sends the detection signal to the line connection control section 5 and the management control section 9 (step 2). The line connection control unit 5 connects the line (B or B') of the called side message input/output unit 18 that has issued the message storage request in the intercom line connection unit 3 to the encoding unit 6 side (C) (step 3 ). Management control section 9
interprets the message storage request control signal.

The detection signal is sent to the message management unit 10 and the audio signal/
It is sent to the video signal encoding changeover switch 14. As a result, the intercom line connection sections 3 (E) and (G) are connected (step 4). Thereafter, recording of the operator's video is automatically started (step 5).

That is, the first video memory from the video input section 11b], 9
The video signal taken in by the video signal encoder 6a is converted into a digital video code (step 6).

Thereafter, the converted video code is sent to the storage memory section 8 with the current time message added to the beginning by the time message adding section 16. Message management department 1
0 instructs the storage memory section 8 to store the digital video code at the address corresponding to the message input/output unit 18 on the called side. The storage memory unit 8 stores the digital video code according to the instruction (step 7).

After the video signal transmission is finished, the audio signal/video signal encoding changeover switch 14 automatically switches to the audio signal encoding section 6b side (F
) (Step 8), and the management control unit 9 notifies the called side message input/output unit 18 that voice messages can be accepted (Step 9). Thereafter, recording of a voice message is started from the intercom 2 on the called side (step 10). The voice message issued from the called side intercom 2 is converted into a digital voice code by the voice signal encoding section 6b and sent to the storage memory section 8 (step 11). Storage memory section 8. Then, the digital audio code is stored following the digital video code (step 12), and when the recording of the audio message is finished, the recording γf end control signal is input from the intercom 2 on the called side or the system goes on-hook (step 13). .17).

The management control unit 9 sends a message storage operation end signal to the message management unit 10 and the audio signal/video signal encoding changeover switch 14.

(E) is in an initial state in which it is not connected to either (F) or (G), and the audio signal encoder 6b completes the conversion of the analog audio signal into a digital audio code (step 14). The message management unit 10 causes the storage memory unit 8 to complete the storage operation (step 15).

The line connection control section 5 releases the line connection of the intercom line connection section 3 (step 16).

With this, the message storage operation from the called side message input/output unit 18 is completed.

Next, the message reproduction operation of the message input/output unit I8 on the called side will be explained (FIG. 3).

In the initial state, the audio signal/video signal decoding changeover switch 15 is not connected to either the video signal decoding section 7a side (J) or the audio signal decoding section 7b side (I).

In this state, the called side intercom 2 is off-hook, and a voice message playback request control signal is input (step 21).
), the control signal detection section 4 detects the control signal and sends the detection signal to the line connection control section 5 and the management control section 9 (
Step 22).

The line connection control unit 5 converts the line (B or B') of the called side message input/output unit 18 that has issued the message playback request in the intercom line connection unit 3 to the decoding unit 7.
side (D) (step 23). The management control unit 9 interprets the message playback request control signal, sends the detection signal to the message management unit 10 and the audio signal/video signal decoding switch 15, and as a result, the storage memory unit 8
Sides (H) and (J) are connected (step 24). The message management unit IO instructs the 1M stacking memory 8 to reproduce the digital code stored at the address corresponding to the message input/output unit 18 on the first called side. According to the instructions, the storage memory section 8 first sends the digital video code to the video signal decoding section 7a (step 25) and converts it into an analog video signal (step 26), stores it in the second video memory 19b, and then outputs it to the video display section. 12b (step 27). The audio signal/video signal decoding switch 15 is automatically switched to the (I) side when the transmission of the digital video code is finished (step 28).
. Thereafter, the storage memory unit 8 sends the digital audio code stored following the digital video code to the audio signal decoding unit 7b (step 29), and the digital audio code is converted into an analog audio code (step 29). 30) The message is sent as a voice message to the intercom 2 of the called party (step 31).

The called side intercom 2 goes on-hook when the reproduction of the voice message is completed (step 32).

The management control unit 9 sends a message reproduction operation end signal to the message management unit 10 and the audio signal/video signal decoding switch 15, and (H) is in an initial state where it is not connected to either (J) or (I). Then, the audio signal decoding section 7b completes the conversion of the digital audio code into an analog audio signal. The message management section 10 instructs the storage memory section 8 to terminate the playback operation. The line connection control unit 5
The line connection of the intercom line connection section 3 is released (step 33).

With this, the voice message reproduction operation from the message input/output unit 18 on the called side is completed.

Next, the state registration operation of the message input/output unit 18 on the called side will be explained (FIG. 4).

Step 41): Off-hook the intercom 2 on the called side.
9 When selected by the calling side message input/output unit 17, a message playback request state for playing back a pre-input message, or a line connection request for making a line connection with the calling side message input/output unit 17. A registration control signal indicating the status or any status is input from the called side intercom 2 (step 42.46). The control signal detection unit 4 detects the control signal and sends it to the management control unit 9. Upon receiving the control signal, the management control section 9 stores the state in the address corresponding to the called side message input/output unit 18 in the storage memory section 8 (step 43). The end of the status registration is notified by an audible sound (for example, a beeping sound) or a video message on the video display section 12b (step 44). After confirming this, the called side intercom 2 is taken off-hook (step 45).

With this, the state registration operation of the message input/output unit 18 on the called side is completed.

Next, calling from the calling side message input/output unit 17 will be explained (Fig. 5, Fig. 6, Fig. 7, Fig. 8).
.

In the initial state, the audio signal/video signal encoding switch 14 is not connected to either the video signal encoding section 6a side (G) or the audio signal encoding section 6b side (F)6.
Further, the audio signal/video signal decoding switch 15 is not connected to either the video signal decoding section 78 side (J) or the audio signal decoding section 7b side (I). In this state, one of the message input/output units 18 on the calling side is selected to go off-hook on the calling side intercom (Step 51), and a control signal requesting connection is inputted (Step 52).

The control signal detection section 4 detects the control signal and sends it to the line connection control section 5 and the management control section 9. The management control unit 9 searches for the status of the called message input/output unit 18 selected from the calling message input/output units 17 (steps 53 and 54).

As a result, when the message input/output unit 18 on the called side is in the message playback request state, first the line connection control unit 5
connects the line (A) of the message input/output unit 17 on the calling side, which has issued the message storage request, to the encoder 6 side (C) in the intercom line connection section 3 (step 101). The management control section 9 is.

It interprets the message storage request control signal and sends the detection signal to the message management section 10 and the audio signal/video signal encoding changeover switch 14. As a result, the intercom line connection units 3 (E) and (G) are connected (step 102), and the message management unit 1O stores and stores the digital voice code at the address corresponding to the message input/output unit 18 on the called side. The storage memory unit 8 is instructed to do so. After that, the called side message input/output unit 1
The video of the caller taken into the first video memory 19a from the video input section 11a is automatically recorded in the storage memory section 8 by the same process as the video message storage operation in step 8.

After that, the line connection control unit 5 connects the line m (A) of the calling side message input/output unit 17 to the decoding unit 7 side (D) in the intercom line connection unit 3 (step 1
11). °The management control unit 9 sends the message management unit lO
A voice message playback request control signal and the corresponding address are transmitted to the message input/output unit 18 on the called side.6 After that, the same processing as the voice message playback operation from the message input/output unit 18 on the called side is performed, and the calling side message is transmitted. A video is displayed on the video display section 12a of the input/output unit 17, and a voice message is played back by the calling side intercom 1 (step 112).

After the end of voice message playback 1 When the calling side message input/output unit 17 inputs a voice message storage request control signal (step 57), the control signal detection section 4 detects the control signal and communicates it with the line connection control section 5. It is sent to the management control unit 9. The line connection control unit 5 connects the line (A) of the calling side message input/output unit 17 to the encoding unit 6 side (C) in the intercom line connection unit 3 (step 12
1). According to the voice message storage request control signal, the management control section 9 notifies the message management section 10 that the voice message storage request control signal has been received from the calling side message input/output unit 17, and sends the voice message storage request control signal to the called side message input/output unit 18. The storage memory unit 8 is instructed to store the digital audio code at the corresponding address. Thereafter, the message is stored in the storage memory section 8 by the same process as the voice message storage operation in the called side message input/output unit 18 (step 122).

After the voice message is played back (step 57), if the calling side intercom goes on-hook, the line connection control unit 5
cancels the line connection of the intercom line connection section 3 (
Step 59.60). The management control section 9 instructs the mensage management section 10 to terminate the operation.

The message management unit IO instructs the storage memory unit 8 to terminate the playback operation.

When the registered state of the intercom 2 on the called side is the line connection request state, voice communication is possible by the same operation as in the conventional example (steps 61, 62, and 63).
．． 64), and the calling side message input/output unit 17
from the video input unit 11a to the first video memory 19a.
The video signal taken into the.

The voice signal/video signal separation and synthesis section 13 adds the signal to the audio signal and sends it out. On the other hand, in the called side message input/output unit 18, the video signal sent from the calling side message output unit 17 via the intercom line connection section 3 is separated by the audio signal 4/video signal separation/synthesis section 13, taken into the second video memory 19b,
It is displayed on the video display section 12b.

With this, the calling operation from the calling side intercom 1 is completed.

Furthermore, from the message storage device of this embodiment, the video display section 12a of the message input/output unit 17 on the calling side and the video input section 11b of the message input/output unit 18 on the called side
By removing , it is also possible to configure a storage device i'2 that records voice messages and video messages of the caller (FIG. 9).

(Effects of the Invention) According to the present invention, by connecting the storage memory unit to a message input/output unit consisting of an intercom, a video input unit, and a video display unit via an intercom line, visitors can receive messages even when they are not present. Messages can be conveyed through video and audio, and visitors' video and audio messages can also be recorded, making message transmission even more rational and extremely effective in practice6.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the circuit configuration of a message storage device according to an embodiment of the invention, FIGS. 2 to 8 are flowcharts explaining the operation of the message storage device of the invention, and FIG. 9 is a block diagram showing the circuit configuration of a message storage device according to an embodiment of the invention. FIG. 10 is a block diagram of a message storage device according to another embodiment. FIG. 10 is a block diagram showing the configuration of a conventional centrally managed intercom. 1... Calling side intercom, 2... Called side intercom, 3... Intercom line connection section, 4.
...Control signal detection unit, 5...Line connection control unit,
6... Encoding unit, 6a... Video signal processing unit,
6b...Audio signal encoding unit, 7...Decoding unit, 7a...Video signal decoding unit, 7b...Audio signal decoding unit, 8...Storage memory unit, 9...Management Control unit, lO...Message management unit, lla, llb
...Video input section, 12a, 12b...Video display section, 13...Audio signal/video signal separation and synthesis section, 14
...Audio signal/video signal encoding switch, 1
5... Audio signal/video signal decoding 9J switching switch, 16... Time message addition section, 17... Calling side message input/output unit, 18... Called side message input/output unit, 19a ...First video memory, 19b...Second video memory.

Claims (2)

[Claims] (1) An intercom line connection unit that is connected to a plurality of intercom lines and selectively connects the plurality of intercom lines; and a control signal detection unit that detects control signals input from the plurality of intercom lines and converts them into digital signals. , a line connection control unit that controls the intercom line connection unit; an audio signal encoding unit that converts analog audio signals from the plurality of intercom lines into digital audio codes; an encoding unit comprising a video signal encoding unit that converts into digital video codes; a storage memory unit that stores digital audio codes and digital video codes output from the encoding unit; and a storage memory unit that stores digital audio codes and digital video codes output from the storage memory unit. a decoding section comprising an audio signal decoding section that converts a digital audio code into an analog audio signal; and a video signal decoding section that converts the digital video code outputted from the storage memory section into an analog video signal; an intercom comprising: a management control unit that manages the state of the intercom line; a message management unit that controls input/output of digital audio codes and digital video codes to the storage memory unit; an audio input/output unit; and a control signal input unit. A message input/output unit comprising a video input section, and a video display section for displaying a video signal sent from a video input section similar to the video input section or a storage memory section via an intercom line connection section. A message storage device characterized by: (2) a first message input/output unit comprising an intercom consisting of an audio input/output section and a control signal input section and a video input section; and an intercom similar to the intercom provided in the first message input/output unit. , said first
A second message comprising a video input section similar to the video input section provided in the message input/output unit, or a video display section that displays the video signal sent from the storage memory section via the intercom line connection section. The message storage device according to claim 1, further comprising an input/output unit.