JPS63194430A - Portable message communication system - Google Patents

Abstract

PURPOSE:To enable bidirectional communication between an analog telephone set to be performed, to secure the degree of freedom of the transmission of intention, and to simplify a system, by setting the communication time of a non-interactive message voice in a radio section smaller than a reproducing time by a compression and work processing means, and allocating a time difference on the common usage of the radio section. CONSTITUTION:When the message voice is transmitted from the analog telephone set 14 to a portable machine 12, a clerk A dials from the telephone set 14 to the portable machine 12. A PBX15 accesses to a center processing part 17, and sends a talkie to the telephone set 14. The clerk A sends the message voice by using the telephone set 14. The message voice is compressed and worked at the processing part 17 via a central control station 16, and is transmitted to the control station 16. The control station 16 combines the message voice, the telephone number of the portable machine, and a control signal, and sends it to a simplified fix station 13 via the PBX15. The timing of wave radiation from plural simplified fix stations are deviated by a prescribed time between the same bus at random, and also, the interval is set longer than the time of a compressed message voice. Therefore, it is possible to prevent the reception of the portable machine from being unstabilized. Also, the above operation can be managed with one frequency.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a mobile message communication system that allows contact with a person who is out or away from their desk.

(Prior Art) The following are typical methods of communicating with a person who is away from a communication device such as a telephone due to going out or leaving their seat using a public telecommunications network.

■B) Radio calling using a pager, mouth) A new pager that adds a display function to the pager and allows for the transmission of simple matters (planned by Seiko Seiko Co., Ltd. (for example, 19
8f3, 9.18 Asahi Shimbun) Examples of implementation in the United States, etc. (Millicom, etc.), ■B) News, memos, etc. are exchanged between mobile devices and fixed devices via data exchanges on specific campuses. Portable mobile terminals that send and receive information such as communication systems (
Communication Systems Research Group C884-101), mouth) Data transceiver (e.g. electronics) that sends and receives data between a portable device and a computer.
83, 8.25), ■Telephone calls using cordless phones, ■Telephone calls with moving objects such as cars, trains, ships, etc.

(Problems to be Solved by the Invention) However, these communication methods have the following problems. ■ and ■ use notes and data as information, so there are limitations in terms of freedom of communication and ease of input/output, and they cannot directly communicate with existing analog telephones, which account for the majority. .

■ and ■ use conversational audio as information, so (a) two people (both parties talking) will monopolize a limited wireless channel for the duration of the call, so there will be no interference with other mobile devices. L1L (waiting for outgoing and incoming calls) and limits on the number of installations are given.

(1) In addition, since the call time is generally long, or in order to make long calls possible, (1) the power supply is large, and (2) there is movement during the call, so countermeasures against fading are essential. Since simultaneous two-way communication is required, it is necessary to use different frequencies for uplink and downlink to avoid coupling between transmitting and receiving, which makes portable devices large and inconvenient to carry around all the time. There is.

In order to eliminate these problems, the purpose of the present invention is to provide a system that can communicate bidirectionally with existing analog telephones, which account for the majority of the devices, ensures freedom of communication, and facilitates installation by simplifying the system configuration. The purpose of this invention is to provide a mobile message communication system.

(Means for Solving the Problems) In order to solve the above object, the present invention uses non-conversational message voice as information, connects to a communication network, and connects wireless transmission or transmission/reception means to compress the message voice. - A fixed terminal system including a processing means and an expansion/restoration means, a wireless receiving or transmitting/receiving means, and a compression/processing means and an expansion/restoration means for the message voice; In a mobile communication system using a mobile terminal capable of receiving or transmitting a message voice, the communication time of the message voice in the wireless section is made shorter than the reproduction time of the message voice by the compression/processing processing means. , the time difference was allocated to common use of the wireless section.

(Function) According to the present invention, by adding voice compression processing technology and control technology that effectively utilizes the effect of compression to non-conversational message voice that requires short communication time, wireless communication time can be reduced. Make it shorter than the playback time of the message voice.

(Example) From the viewpoint of advantages in mobile communication, Table 1 is obtained, comparing message voice, conversation voice, and memo information.

In other words, message voice requires less communication time for one transmission than conversation voice, and immediacy is not necessarily required, and delays are acceptable.For this reason, message voice It can be processed relatively slowly and over time before being transmitted over the air. Furthermore, since the communication time is short, there is no need to move between fixed stations during communication, and there is no need for bidirectional simultaneity.

■Also, compared to memo information, memos are entered by pressing a button or by handwriting, and are output as letters or numbers on the display, whereas voice messages can be input and output using voice, making them easier to operate. , since there is no need for numerous buttons and displays, it is possible to make mobile devices smaller and more economical.The biggest difference is that by using message voice, it is possible to directly communicate with existing telephones, which account for the majority of devices. be.

FIG. 1 shows an example in which the present invention is implemented within the premises of a department store, where 11 is a person carrying a portable device according to the present invention and moving freely within the department store, and 12 is a simple fixed station carried by a person. This is a portable device that transmits and receives voice messages wirelessly to and from the mobile phone.The details are explained in FIG. Reference numeral 13 denotes a simple fixed station that wirelessly transmits and receives signals to and from the portable device 12, the details of which will be explained in FIG. 14 is a plurality of ordinary existing telephones in the premises;
15 is a private branch exchange that accommodates the simple fixed station 13, the existing telephone set 14, a central control station, and a center processing unit, and performs exchange connection between these units. have. 1B is
A central control station that sends and receives signals between the simple fixed station 13 and the portable device 12 via the private branch exchange 15, controls competition between the simple fixed stations, and controls the connection between the private branch exchange 15 and the center processing section. This will be explained with a diagram. 17 compresses, processes, and stores message voices input from a plurality of existing telephones 14, and conversely expands, restores, and stores message voices from a plurality of simple fixed stations. This is a center processing unit having a function of transmitting a talkie for operation guidance, and the details will be explained in FIG. 18 is a connection line that connects several simple fixed stations 13 connected to the bus and the private branch exchange 15 with multiple wires; 19 is a connection line between the existing telephone 4 and the private branch exchange 15;
An existing telephone line 110 connects the private branch exchange 15 and the public network by wire, and a public network having a large number of general telephones and an exchange that connects the private branch exchange 15 and the public network, and 111 a large number of ordinary telephones in the public network. , 112 is a dedicated terminal having both the telephone function and the functions of the simple fixed station 13 and the center processing section 17.

FIG. 2 shows an example of the configuration of the portable device 12, in which 21 is an antenna;
Reference numeral 2 denotes an antenna switching unit for using one antenna for both transmission and reception, and is usually on the receiving side.

23 is a receiving unit that receives radio waves from the simple fixed station 13;
24 is a demodulation unit that extracts information such as message voice from the radio waves received by the reception unit 23; 25 is a frame disassembly unit that disassembles the received information into a telephone number, message voice, and control signal;
B is a signal processing unit that stores and verifies telephone numbers and decodes signal information from the central control station; 27 is a frame decomposition unit 2;
The memory 28 stores the message voice from the memory 27 and is a voice expansion/restoration unit for restoring the compressed message voice from the memory 27 to normal voice, and its operation is as shown in FIG. The process is performed in the opposite direction to that in the processing section 54 to restore the image. 2
9 is a memory for storing restored voice messages; 210 is a speaker unit including an amplifier for listening to voice messages received; 211 is buttons; 2111 is a dial switch; and 2112 is a portable device 12. 2113 is an input button for activating the circuit blocks necessary for the operation when the user sends a message voice, and 2113 is a transmit button for transmitting the compressed message voice to the simple fixed station 13 (radiation of radio waves). , 2114 is a readout button that is pressed when listening to the voice message that has arrived, and 212 is a readout button that is pressed to listen to the message voice that has arrived. An indicator 213 for notifying the completion of transmission of the control unit 21 for controlling the above operation.
4 is a timer for instructing the timing of audio input and measuring time in intermittent reception; and 215 is a battery for supplying power to each part. 21B is a microphone for inputting the message voice of the carrier; 217 is a memory for storing the output from the microphone 216, that is, the message voice of the carrier; 2
18 is an audio compression/processing unit 219 that compresses and processes the audio retrieved from the memory 217 according to instructions from the control unit;
is a memory that stores compressed voice messages.
220 is a frame assembly unit that assembles a transmission frame for transmitting the message voice from the memory 219 and the telephone number and control signal from the signal processing unit 2B to the simple fixed station and the central control station; 221 is the frame assembly unit 220 A modulation unit 222 for putting the output of
This is a transmitter that can obtain transmission outputs at two specified frequencies (fl, i'2) for the simple fixed station 13 shown in FIG.

FIG. 3 shows an example of the configuration of the simple fixed station 13, in which 31 is an input terminal connected to the connection line 18, 32 is a memory for temporarily storing input signals, and 33 is a terminal that is connected to the connection line 18. A gate section reads the contents of the memory 32 and sends it to the modulation section.34 is a modulation section for putting the information from the gate section 33 onto a wireless carrier.35 emits radio waves at a specified frequency and output to the portable device. 36 is a transmitting antenna, 37 is a timer, and 38 is a control unit that controls the above operations. 39 is a receiving antenna, 310 is a portable device 1
311 is a demodulation unit that extracts information such as a control pattern signal, message voice, and telephone number from the radio waves received by the reception unit 310; 312 is a demodulation unit that can receive the frequencies "l and r2" from a memory for temporarily storing the output (telephone number and message voice) from the section 311;
13 is a gate unit that reads out the contents of the memory 312 and sends it to an output terminal according to instructions from the control unit 38; 314 is a connection line 1;
This is the output terminal connected to 8.

In FIG. 4, 41 is an input terminal from the private branch exchange 15, 42 is a switch group for reconnecting multiple inputs and outputs so that they can be processed in parallel at the central control station, and the blocks to the right of 42 are parallel Although it has a plurality of the same functional blocks for processing, each block is represented by a single block in FIG. 4. 43 is the in-flight switchboard 15
44 is a memory for temporarily storing the separated phone number of the mobile device, and 45 is a message voice and phone number. Mark the message voice so that you can see the correspondence with
46 is a marking circuit 4 for adding a marking circuit.
5 is an output terminal that sends the output to the center processing unit 17; 47 is an input terminal to which the audio compressed by the center processing unit 17 is input; 48 is a memory that temporarily stores the audio input from the input terminal 47; 49 is a collation unit that compares the contents of the memory 44 with the contents of the memory 48 and combines the bare ones; 410 controls the phone number of the mobile device, the voice message to the mobile device, and the simple fixed station 13; 411 is a memory that temporarily stores the latest output of the frame assembling unit 410; 412 is a frame assembling unit that assembles a transmission frame in order to transmit a control signal for transmission to the simple fixed station 13; an output terminal that sends the output of 410 or the contents of memory 411 to private branch exchange 15;
413 is a control unit that controls the above operation, and 414 is a timer. 415 is an input terminal, 41B is a memory for temporarily storing voice messages etc. from a simple fixed station, 417 is a separation unit that separates the output of the memory 416 into a telephone number and voice message, and 418 is a separator for storing the separated telephone number. 419 is a marking circuit that adds a mark to show the correspondence with the telephone number before sending the message voice to the center processing section; 420 is the output terminal to the center processing section 17; 421 is the center processing section. 422 is a memory for temporarily storing the message voice from the center processing section; 423 is a collation section for comparing the telephone number in the memory 418 with the message voice in the memory 422;
Reference numeral 24 is an output terminal for sending the verified telephone number and voice message to the private branch exchange 15.

Further, in FIG. 5, 51 is an input terminal into which the message voice from the output terminal 4B of the central control station shown in FIG. 4 is input, and 52 is an input terminal for reconnecting so that multiple inputs can be processed in parallel. Although the switches in FIG. 5 have a capacity for parallel processing as in FIG. 4, each block on the right side of the switch group 52 is represented by a single block.

53 is a memory for temporarily storing input message voice for compression processing; 54 is a voice compression processing section that compresses the voice taken out from the memory 53 according to instructions from the control section; 55 is a compression processing section; 5B is an output terminal for sending the output from the memory 55 to the input terminal 47 of the central control station shown in FIG. 58 is the talkie part 5 for providing guidance on the timing of occurrence etc. when inputting a voice message to the mobile device.
An output terminal 59 that outputs the output of 7 to the private branch exchange 15 is a control section that controls the operation of each of the above sections. 510 is an input terminal into which compressed message voices from a plurality of portable devices are input; 511 is a memory for temporarily storing message voices from the input terminal 510; and 512 is taken out from the memory 511 according to instructions from the control unit. a voice expansion/restoration unit that expands and restores the audio and returns it to the original message voice;
Reference numeral 513 is a memory for temporarily storing the message voice from the voice expansion/restoring unit 512, and 514 is an output terminal for returning the message voice from the memory 513 to the central control station.

The operation of the present invention configured as described above is as follows.

A. We will explain the procedure for actual use when sending a voice message from an existing telephone to a mobile device (downward direction).

b) In Figure 1, clerk A in the office on the premises is
In order to contact B, who is in possession of the portable device 12 and moving within the premises, using the telephone 14, a telephone number unique to the portable device B is in possession of is dialed.

Ex) Since the private branch exchange 15 recognizes that the call is from a telephone number to a portable device, it accesses the center processing section 17 and sends out a talkie to the telephone 14.

c) Clerk A follows the instructions on the talkie and uses the telephone 14 to voice a message for 10 seconds (one example).

2) The message voice is sent to the private branch exchange 15. After passing through the central control station 16, it is compressed at the center processing section 17.

e) The message voice sent to the center processing section 17 via the central control station 16 is stored in the memory 53 through the input terminal 51 shown in FIG. Next, under the control of the control unit 59, the audio is sent from the memory 53 to the audio compression processing unit 54.
Compressed.

There are various methods for compressing audio, but the following methods are relatively easy to implement.

Method for shortening zero time 1) Silent part cutting method that detects and removes silent parts from the message voice 2) Punching method that samples the message voice at high speed and thins it out at regular intervals ■Method of compressing the band l) Bandwidth compression using high-efficiency encoding 0 Method of making the time axis variable ■) Packetize the audio, transmit the audio in pieces while checking the congestion on the transmission path, and assemble it in order on the receiving side. Packetization method for splicing - There is a method that combines some of the above methods.

Here, the following explanation will be given by taking as an example the case where compression processing is performed by a method that combines ①-1) and ①-2).

f) The message voice, which was 10 seconds long at the time of input, is shortened to, for example, 6 seconds by being processed by the voice compression processing section 54 and stored in the memory 55.

g) The control unit 59 takes out the message voices stored in the memory 55 one after another and sends them to the central control station 16 via the output terminal 58.
Send to.

H) The message voice sent to the central control station 16 is sent to the input terminal 47. shown in FIG. Through the switch group 42, the memory 4
It is accumulated to 8.

(w) The control section 43 takes out the contents stored in the memory 44 and the memory 48, collates them in the collation section 49, combines the paired contents, and sends them to the frame assembly section 410. If the memory 44 and the memory 48 each have a plurality of contents, the control unit 413 performs collation one after another,
It operates so that the pairs are sequentially sent to the frame assembly section 410.

n) A transmission frame is assembled in the frame assembly section 410, and the message voice, telephone number, and control signal are sent to the output terminal 412. Private branch exchange15. It is sent to the simple fixed station 13 through the connection line 18. The simple fixed stations 13 are connected to the connecting line 18 by bus in units of several, and these are installed on each floor of the department store, but when transmitting information in the downward direction, it is unknown where the target mobile device is, so the above-mentioned method is used. The output of the frame assembly section 410 is sent to all connection lines and the simple fixed station via an output terminal 412. However, in this case, private branch exchange 1
5, in order to prevent radio waves from being emitted simultaneously from multiple simple fixed stations and the reception on the mobile device becoming unstable, the signal transmission to the connection line 18 is transmitted by shifting the time by Tl for each connection line. It looks like this.

3) Information such as voice messages that reach the input terminal 31 of the simple fixed station 13 in FIG.
is temporarily accumulated. The timing at which the gate section 33 sends the contents of the memory 32 to the modulation section 34 is set by a timer 37 to be randomly shifted for each simple fixed station. Therefore, the timing of radio wave radiation from a plurality of simple fixed stations is shifted by Tl between buses under the control of the private branch exchange 15, and between the same buses is shifted randomly (T2.T3°・φTn) by the timer 37. , the interval is set to be longer than the time of one compressed voice message, in this case 6 seconds (Tl, T2...Tn > 6 seconds), so the mobile device simultaneously transmits radio waves of the same frequency. If received from two or more locations, the reception will not become unstable, and since they are time-shifted, the downstream direction can be covered by one frequency (fO). Although a delay occurs due to the temporal shift, there is no problem because the message voice does not require immediacy. In addition, in order to reduce battery consumption, the receiving section of portable devices operates intermittently, so it is not possible to receive the radio waves emitted during the idle period. After that, the data is read out from the memory 32 again and the above operation is repeated.

e) Radio waves radiated from the antenna 3B of the simple fixed station 13 reach the portable device 12.

(w) The information reaching the portable device 12 is transmitted to the antenna 21. Antenna switching unit 22. Receiving section 23. The frame passes through the demodulator 24 and reaches the frame decomposer 25. When the control signal separated by the frame decomposition unit 25 reaches the signal processing unit 26, the control unit 213 puts the portable device into a continuous reception state.

Further, the telephone number separated by the frame decomposition unit 25 is checked in the signal processing unit 26 to see if it matches a unique telephone number assigned to each mobile device. If they do not match, the information is discarded here and the mobile device 12
It becomes intermittent again. If they match, the message voice is stored in memory 27. The memory 2 passes through the audio decompression/restoration unit 28.
Stored to 9.

When the message voice is stored in the memory 29, the control unit 213
displays a mark on the display section 212 to notify that the voice message has been received. Here, when the user presses the read button 2114, the message voice is read out from the memory 29 under the control of the control unit 213, and the message voice is read out from the speaker unit 210.
You can hear more. When the storage of the message voice in the memory 29 is completed, the portable device returns to the intermittent reception state.

In addition, in the above explanation, as other examples,
The following can be mentioned.

■In Explanation A), we explained how to call a mobile device by dialing a phone number unique to the mobile device. , When a call is received, the call is placed on both the existing phone and the mobile device at the same time, or the existing phone is called n times, and if there is no answer, the call is automatically forwarded to the mobile device, etc. to ring the mobile device. can also be easily achieved.

■Another method for compressing and processing audio in (e) is to break down the audio into phoneme parameters that represent the meaning of the sound.
There are also methods such as transmitting only the phoneme parameters wirelessly and reproducing them as voice on the receiving side, or recognizing and understanding the meaning of the message voice, compressing it to the minimum necessary content, and transmitting it wirelessly. Once compression processing technology is established, it can be applied to the present invention.

Also, the compression rate is not limited to (see explanation); in short, it is sufficient if the wireless communication time is shorter than the audio playback time, but if the compression rate is high and the wireless communication time is shorter than the audio playback time. The shorter the time, the greater the effect of the present invention.

■In explanation (W), the method of notifying the user that the voice message has arrived is not only by displaying a mark, but also by sound, which can be used without charge, and the voice message can be heard through earphones in addition to the speaker. is also easily achievable.

Similarly, the explanation will be given according to the procedure for actual use.

b) In FIG. 1, B, who is in possession of the portable device 12 and is in the premises, wants to contact A, who is in the office.

A uses a portable device to input the telephone number and message voice of the existing telephone 14 used by A.

口) B uses the dial switch 2111 to dial A's telephone number. The telephone number is temporarily stored in the signal processing section 2B. Next, when B presses the human capo button 2112, a signal is displayed on the display section 212 informing him of the timing when it is okay to input the message voice, so B follows this and
A message voice for 10 seconds (one example) is input into the microphone 216.

c) The output from the microphone 216 is temporarily transferred to the memory 217.
Then, under the control of the control unit 213, the audio data is sent to the audio compression/processing unit 218, where it is compressed. The compression method is the same as the explanation e) of the operation A in the downward direction. The compressed audio is stored in memory 219.

2) When the compression process is completed, the control unit 213 displays the display unit 2.
At step 12, a signal indicating that transmission is possible is displayed. Normally, audio compression and processing can be completed within a few seconds at most, so this signal can be omitted.

e) Next, when B presses the send button 2113, the telephone number and message voice are transmitted as radio waves to the simple fixed station, but at this time, the radio waves of multiple mobile devices are sent to the simple fixed station at the same time. When transmitted, reception by the simple fixed station becomes unstable, so contention control is required. That is, the control unit 2
13 takes out the control pattern signal specific to this portable device registered in the signal processing section 26 and sends it to the frame assembly section 220. Modulation section 221. Transmission unit 222. Via the antenna switching unit 22, the antenna 21 emits radio waves to the simple fixed station 13 at a frequency r1 dedicated to the control pattern. Since the control pattern signal is short, this signal ends in a short time.

f) The control pattern separated by the demodulator 311 is sent to the controller 38. When the control pattern arrives, the control unit 38 checks whether or not information from the memory 32 is being transmitted. If it is being transmitted, it waits until it is finished, and when the transmission is finished, it transmits the control pattern signal. , is transmitted from the antenna 36 to the portable device (2) in the same way as the transmission of the message voice in the downstream direction described above.

At this time, the timing of emission of radio waves from the simple fixed station 13 is controlled by the control unit 38 so as to be later than the timing of switching back the antenna switching unit of the portable device 12.

g) In the portable mechanic 2, the reception of the message voice is performed in the same way as in the downward direction operation explanation A, and the control pattern separated by the frame decomposition unit 25 is processed in the signal processing unit 28 as the explanation for operation B) A comparison is made to see if it is the same as the pattern shown in .

If they match, the controller 213 of the portable device knows that its own transmission has been approved, and therefore performs the next operation.

H) The control unit 213 sends the telephone number of the signal processing unit 26 and the message voice in the memory 219 to the frame assembly unit 2zO9 modulation unit 221. The signal is sent to the antenna switching section 22 through the transmitting section 222. Since the transmit button 2113 is pressed, the antenna switching unit 22 operates to switch the antenna 21 to the transmitting unit 222 side, so this information is simply fixed using radio waves at frequency r2 for transmitting the message voice and telephone number. It is sent to station 13.

(b) If they do not match, the control unit 213 knows that permission for transmission has not been obtained, and therefore does not transmit the telephone number and voice message. Furthermore, before the mobile device that first sent back its own control pattern (the first mobile device) finishes transmitting the message voice, another mobile device (the later mobile device) sends the control pattern. When the mobile station is sent, the control unit 38 of the simple fixed station also transmits the previous control pattern (the pattern of the mobile phone that came first) to this mobile phone, so the pattern will match in the mobile phone that came after. I learn not to do it.

In this case, a control method may be adopted in which nothing is sent back to the subsequent portable device, the portable device side monitors for a certain period of time, and if there is no reply, there is no permission.

In addition, regarding resending when permission is not obtained, ■
A method in which the user of the portable device presses the send button 2113 again since there is no signal of the end of transmission mark. ■ In the simple fixed station 13, multiple control patterns are accumulated in the order of arrival, and the control pattern is sent to the one whose turn has arrived. A method such as automatically replying one after another may be adopted.

(v) The information that has arrived at the simple fixed station is extracted by the demodulator 311 as a telephone number and voice message. In this case, since no control pattern is included, the control section 38 does not perform the bypass operation to the transmitting section shown in (see explanation of operation B), and immediately stores the telephone number and voice message in the memory 312. The signal is sent to the output terminal 314 through the gate section 313.

) The information from the output terminal 314 is transmitted through the connection line 18. It passes through the private branch exchange 15 and is sent to the central control station 1B. Here, since there are a plurality of simple fixed stations 13, competition control (in this case, over a wired section) is required even in signal transmission to the central control station. There are several methods for this, but for example, as mentioned above, a control pattern is generated at a simple fixed station,
If the central control station has a call-back function, a method can be applied in which it is determined that the pattern has been accepted when it returns, but the explanation of this will be omitted.

e) Message voice etc. sent to the central control station are inputted from the input terminal 415 in FIG.

W) The message voice sent from the output terminal 420 of the central control station to the center processing unit 17 is sent to the input terminal 5 shown in FIG.
Enter from 10.

The center processing unit 17 expands and restores the message voice.
This is the same as the description A of the operation in the down direction for aircraft 17 and 12.

(1) The telephone number and voice message passed through the output terminal 424 of the central control station are sent to the private branch exchange 15, and the private branch exchange places an incoming call to the telephone 14 having the telephone number.

In response to this, the private branch exchange 15 controls the talkie section 57 of the center processing section to first play a guide talkie and then play a message voice. As a result, the voice message is transmitted to the clerk A through the telephone 14.

As described above, the message voice is transmitted from both up and down directions.

In addition, in the above explanation, as other examples,
The following can be mentioned.

■Although I have explained using a department store as an example, the size of the premises is not limited; if it is a large premises, you can increase the wireless output or increase the number of simple fixed stations, and if it is a small premises, you can do the opposite. The present invention can be implemented according to the system to be constructed. Also, at this time, the transmitting section and the receiving section.

The antenna and the like may be constructed using existing wireless device technology.

■In the explanation of the embodiment, we have explained two ways: message voice from an existing telephone to a mobile device (down direction) and vice versa (up direction), but the same applies to messages from a mobile device to a mobile device. It can be achieved.

■The communication telephone has been explained using an existing telephone within the same premises as an example, but it is also possible to communicate with ordinary telephones within the public network, without charge.

■The explanation has been given using a premises as an example of a communication range, but if you create a dedicated terminal that has the functions of a telephone, a simple fixed station, and a center processing unit, as shown at 112 in Figure 1, the radio waves of the dedicated terminal 112 can be The present invention can also be implemented within a public network as long as it is within reach. At this time, the functions corresponding to the simple fixed station and center processing unit in the dedicated terminal 112 do not require parallel processing capacity, so the dedicated terminal can also be realized economically.

■ In Honjitsu Zeppuru, we have shown a case where voice messages can be sent and received in both directions, but it is possible to achieve this even in the case of only the downstream direction (telephone - portable device) without any charge.

(Effects of the Invention) As explained above, the present invention focuses on "message voice", a medium that requires a short communication time, and uses advanced voice compression/processing technology and compression. By adding control technology that effectively utilizes the effects, we have increased the degree of common usage.
If one person used to monopolize two channels (one upstream channel and one downstream channel) for 10 minutes, with the present invention, if the voice can be compressed to 60% with each 10 second message voice, 200 people can use it in common. can do. This makes it possible to significantly alleviate congestion and restrictions on the number of portable devices that can be installed, which have been the biggest bottlenecks in wireless communications to date. There is a difference between 10 minutes and 10 seconds in terms of communication time, but when you are on the move, it is possible to communicate the minimum amount of intent within 10 seconds, and very few people communicate more than the necessary amount. It is more meaningful for a large number of people to communicate to the minimum extent necessary than to do so.

In addition, since the communication time is short, it can be used repeatedly for a short period of time, reducing battery consumption and making the power supply smaller.Furthermore, since there is no movement during communication, fading countermeasures may be minor. Furthermore, since there is no simultaneous communication in both upstream and downstream directions in mobile devices, there is no need to take measures such as using separate frequencies to separate upstream and downstream. It is possible to build a system that is economical and easy to introduce.

■Also, compared to communication using memos, there is a greater degree of freedom in communicating intentions, easier input and output, and direct communication with existing regular telephones, which account for the majority.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing an embodiment of the present invention within 1 m of a department store, Fig. 2 is a configuration diagram of a portable device, Fig. 3 is a configuration diagram of a simple fixed station, and Fig. 4 is a configuration diagram of a central control station. FIG. 5 is a configuration diagram of the center processing section. 11... People moving within the department store, 12... Mobile device, 13... Simple fixed station, 14... Existing telephone in the premises, 15... Private branch exchange, 16... Central I11
Control station, 17... Center processing section, 18... Connection line,
19...Existing telephone line, 110...Public network, 111
... General telephone, 112 ... Dedicated terminal, 21 ...
Antenna, 22... Antenna switching unit, 23... Receiving unit, 24... Demodulating unit, 25... Frame decomposing unit, 2
6...Signal processing unit, 27...Memory, 28...Audio expansion/restoration unit, 29...Memory, 210...Speaker unit, 211...Buttons, 2111...Dial Switch, 2112...Input capotan, 2113.
...Send button, 2114...Read button, 21
2... Display device, 213... Control unit, 214... Timer, 215... Battery, 216... Microphone, 217
...Memory, 218...Audio compression/processing unit,
219...Memory, 220...Frame assembly section, 2
21... Modulation section, 222... Transmission section, 31... Input terminal, 32... Memory, 33... Gate section, 34
...Modulation section, 35... Transmission section, 36... Antenna, 37... Timer, 38... Control section, 39... Antenna, 310... Receiving section, 311... Demodulation Part, 3
12...Memory, 313...Gate section, 314...
- Output terminal, 41... Input terminal, 42... Switch group, 43... Separation section, 44... Memory, 45
...Marking circuit, 46...Output terminal, 47...
・Input terminal, 48...Memory, 49...Verification section, 4
10...Frame assembly section, 411...Memory, 41
2... Output terminal, 413... Control section, 414...
Timer, 415...input terminal, 416...memory,
417...Separation unit, 418...Memory, 419...
・Marking circuit %420...output terminal, 421...
・Input terminal, 422...Memory, 423...Verification unit, 424...Output terminal, 51...Input terminal, 52...
...Switch group, 53...Memory, 54...Audio compression/processing section, 55...Memory, 56...Output terminal, 57...Talking section, 58...Output terminal, 59
...Control unit, 510...Input terminal, 511...Memory, 512...Sound expansion/restoration unit, 513...
Memory, 514...output terminal.

Claims (1)

[Claims] A fixed terminal system that uses non-conversational message voice as information, is connected to a communication network, and is equipped with a wireless transmitting or transmitting/receiving means, a means for compressing/processing the message voice, and a means for decompressing/restoring the message voice; In a mobile communication system comprising a receiving or transmitting/receiving means, a compressing/processing means and a decompressing/restoring means for the message voice, and using the fixed terminal system and a mobile terminal capable of wirelessly receiving or transmitting the message voice. , characterized in that the communication time of the message voice in the wireless section is made shorter than the playback time of the message voice by the compression/processing means, and the time difference is allocated to common use of the wireless section. Mobile message communication system.