JPH089041A - Silent telephone system - Google Patents

Abstract

PURPOSE:To provide a silent telephone system in which a telephone set is shared in common without relaying by plural persons and without occupying a telephone set by a person, to call a person with a few allocated frequencies through the use of a radio wave and to eliminate the trouble of the transfer of a phone call by other party when a telephone call is allocated to each individual. CONSTITUTION:This system is provided with transmission means 3-1 to 3-n for sending a subscriber number by a radio signal, a portable reception means for outputting a call signal on the condition that a preset subscriber number is matched with a subscriber number set by receiving a radio signal, plural subscriber telephone sets 1, 3-1 to 3-n, 4-1 to 4-n having a subscriber number, and an exchange 2 sending a subscriber number from the transmission means 3-1 to 3-n and having a function making a call to the subscriber telephone set of the subscriber number when a speech request by using the subscriber number comes from the subscriber telephone sets 1, 3-1 to 3-n, 4-1 to 4-n to send a subscriber number in time division.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a silent telephone system which wirelessly makes a telephone call according to a call request between subscriber telephones.

[0002]

2. Description of the Related Art The importance of telephone communication has increased due to the enhancement of telephone network. However, when the range of activities expands with the expansion of business, the calling of the other party by telephone becomes undesired. Therefore, a pager system and a cordless telephone system have been proposed and are becoming popular as a method for easily performing telephone communication wherever they are.

FIG. 7 is a diagram showing a configuration example of a pager system, and FIG. 8 is a diagram showing a configuration example of a cordless telephone system. In the figure, 31, 32, 41 and 42 are subscriber telephones,
33 and 44 are exchanges, 34 is a control device, 35 is a transmission device, 36 is a pager, 43 is a public line, 45 is a main device, 46 is a connection device, and 47 is a cordless telephone.

As shown in FIG. 7, the pager system is a system in which subscriber telephones 31 and 32 are connected to an exchange 33, and a control device 34 and a transmission device 35 are connected. Then, for example, the subscriber telephone 31 and the pager 36
If you want to contact someone who carries your
6 call signal. This signal is sent from the exchange 33 through the controller 34 to the transmitter 35, and the transmitter 3
A specific frequency signal is oscillated from 5. Pager 3
When 6 receives this signal, it rings the bell, so that the carrier calls the subscriber telephone 31 using the subscriber telephone 32, for example.

When only the bell sound is output as the output information of the pager 36, the contact telephone 31 to be contacted is predetermined. However, an LED that can display alphanumeric characters
In the case of the pager 36 equipped with a display and a liquid crystal display, information such as the telephone number of the requestee and the message can be transmitted from the calling side, so the pager 36 can send the information. You can check and act.

Further, in the cordless telephone system, as shown in FIG. 8, subscriber telephones 41 and 42 are connected to an exchange 44 and a connecting device 46 is connected via a main device 45, and for example, several tens to 100 m from the connecting device 46. The radius of is used as a callable range to make and receive calls with radio waves to and from the cordless telephone 47. Therefore, when adopting a cordless telephone system in a building, for example, a plurality of connecting devices 46 are arranged on the ceiling so that all areas are callable areas.

[0007]

By the way, in the office, a telephone is often used as a communication means, but it is a normal mode that a plurality of people share one telephone. For this reason, when a call comes in, even if you interrupt your work and respond to the call, it is more likely that you will call someone other than yourself. In other words, if a plurality of people share a telephone call, especially in an office where telephone communication is frequently made, the telephone call to another person becomes frequent.
In addition, even if one telephone is supported by one person, when the person is absent, a person in the vicinity thereof is forced to act as an agent. When the number of such phone calls is increased, there is a problem that the inside of the office becomes noisy and work efficiency is reduced. For example, according to an analysis by the Management Association, about 5 minutes to answer the telephone call, 15 minutes to return to the interrupted work, and 20 minutes in total are reported as the work lost time caused by the telephone transfer. In addition, since the relationship between each individual and the telephone is specified, if the user leaves the specified telephone and goes out to another room or floor, there is a problem that it is impossible to perform an intermediary.

On the other hand, in particular, doctors and nurses in hospitals, employees of hotels, and employees of large-scale retail stores work while moving, which makes communication difficult. Also, it is desirable that the development department, design department, research institute, etc. keep the environment quiet.

[0009] In that respect, in the pager system, since an individual carries a pager and calls the individual, there is no particular restriction to the seat, but the called individual always calls a specific callee. It is necessary to multiply by. That is, in the future, the same agency as the above occurs.

In addition, since the cordless telephone system can move or carry a telephone, it is possible to move freely, but in that case, each individual carries and has an expensive cordless telephone. Become.

Therefore, it is conceivable to individually call the other party wirelessly by using radio waves to make the telephone call silent, but even in that case, if the same frequency is assigned, interference will occur when there are simultaneous calls. Therefore, a different frequency will be assigned to each. However, when the number of subscribers increases, the cost of the device increases and the frequency is wasted.

The present invention is to solve the above problems and provides a silent telephone system in which an individual does not have a monopoly and can share a telephone with a plurality of persons without any intermediary. Further, it is an object of the present invention to eliminate the troublesomeness of making a call to an individual with a small allocated frequency by using radio waves and making a call to another person when the call is assigned to the individual.

[0013]

To this end, the present invention is a silent telephone system for wirelessly calling a telephone by requesting a call between subscriber telephones, and a transmitter for transmitting a subscriber number by a radio signal and a subscriber number are provided. A portable receiving means for outputting a calling signal on condition that it receives a set radio signal and matches the set subscriber number, a plurality of subscriber telephones having the subscriber number, and a call request by the subscriber number from the subscriber telephone. The present invention is characterized in that it is equipped with an exchange having a function of transmitting the subscriber number from the transmitting means when the telephone number is present and calling the subscriber telephone of the subscriber number, and transmitting the subscriber number in a time division manner. Is. Further, the transmitting means is characterized in that it is provided in a specific master unit among the plurality of subscriber telephones. A plurality of numbers are assigned to one subscriber telephone, and a receiving means is provided for each number.

[0014]

In the silent telephone system of the present invention, the subscriber number is transmitted from the transmitting means by a radio signal, the calling signal is output by collating with the subscriber number set by the portable receiving means, and the subscriber number is subscribed. Since a call is made to the telephone, a call can be immediately made to the subscriber telephone in response to a call, and a silent telephone system that does not ring the ringing bell of the telephone can be realized. Moreover, since the subscriber number is transmitted in a time division manner, it is possible to share the frequency and reduce the allocated frequency. In this case, by making a plurality of subscriber numbers correspond to one subscriber telephone, it is possible for a plurality of persons to share one subscriber telephone and call each person directly by the subscriber number without intermediary.

[0015]

Embodiments will be described below with reference to the drawings.
FIG. 1 is a diagram showing an embodiment of a silent telephone system according to the present invention, in which 1 is a telephone, 2 is an exchange (PBX),
3-1 to 3-n are parent telephones, 4-1 to 4-n are slave telephones, 11 is a receiving unit, 12 is a determination processing unit, 13 is a driving unit,
14 is a vibrating unit, 15 is a storage unit, 16 is a transmission control unit, 17
Indicates a transmitter.

In FIG. 1, an exchange (PBX) 2 is a telephone 1 for an outside line (public telephone line) or a parent telephone 3-1 for an extension line.
~ 3-n, when a telephone call is made from the sub-phones 4-1 to 4-n, the call (telephone number (subscription number) by dial or button) is recognized and all the parent telephones 3-1 to 3-n In addition to sending the telephone number to make a call, the parent telephones 3-1 to 3-n and the slave telephones 4-1 to 4-n of the telephone number are called. The main phones 3-1 to 3-n are
It has a calling telephone number (subscription number) transmitting means, and when the telephone number is sent from the exchange 2, the telephone number is transmitted by radio waves. And the main phone 3-1.
When the call is made from the exchange 2, the 3-n and the sub-phones 4-1 to 4-n pick up the handset without ringing the ringing bell (the ringing bell may not be ringing). By doing so, a call is made. In addition, the calling main phone 3-1 ...
When the extension is applied to the 3-n and the slave telephones 4-1 to 4-n from another telephone, the telephone is brought into a call state with the telephone which is the destination of the call. The subscriber telephone set used in the present invention is not limited to the telephone set 1 connected to the public telephone line (outside line) described above, but the main telephone sets 3-1 to 3-n and the sub- telephones connected to the public telephone line separated from the public telephone line. It is used including the telephones 4-1 to 4-n.

In the silent telephone system of the present invention, each person carries a pager as means for receiving the radio waves transmitted from the transmitting means of the parent telephones 3-1 to 3-n, and FIG. It is a figure which shows the structural example of the pager which is carried.

As shown in FIG. 2, the pager (portable receiving means) is transmitted from the storage means 15 for storing a unique subscriber number (ID) and the transmitting means of the master telephones 3-1 to 3-n. A receiving unit 11 that receives radio waves, a determination processing unit 12 that determines whether the received signal matches the subscription number in the storage unit, and a drive unit 1 that vibrates the vibrating unit 14 according to the match signal.
It has three. It is needless to say that a plurality of joining numbers such as an outside line number and an extension number may be stored in the storage unit 15 and a match between any of them may be detected. The drive unit 13 vibrates the vibrating unit 14 in a plurality of vibration patterns, and the determination processing unit 12
Has a function of judging the match between the joining number and the received signal, an outside / extension signal, and a distinguishing function other than that. Based on the match judgment, the vibrating section 14 is vibrated in a vibration pattern according to the distinguishing result. Good.

In this case, if the coincidence determination signal is held for a certain period of time and the calling signal is output in a plurality of times during that period, the calling means of the master telephones 3-1 to 3-n outputs the calling signal once. You can make outgoing calls, so you can improve your calling ability. On the other hand, if the above holding mechanism is not provided, the calling means of the parent telephones 3-1 to 3-n must make a plurality of outgoing calls, and therefore, even if another call is made during that time, a response is made. Not possible, and the call processing capacity is limited.

In the above system, for example, 5 pages are provided for each pager.
The digit number is given and stored in the storage unit 15, and the upper 4
Digits are parent telephones 3-1 to 3-n, slave telephones 4-1 to 4-n
When assigned to, the upper 4 digits are shared and the lowest digit number is assigned to each person. The outline of the use and operation is as follows.

When there is a person who wants to talk by telephone, nearby telephones (master telephone 3-1 to 3-n, slave telephones 4-1 to 4-4)
Dialing the 5 digits of the other party's subscription number, the exchange 2 recognizes the subscription number and sends it to each of the parent telephones 3-1 to 3 -n, and the upper 4 digits of that number. Call the assigned phone. As a result, a subscription number is transmitted from each of the parent telephones 3-1 to 3-n, the vibrating unit 14 vibrates in the pager of the subscription number, and the called telephone becomes ready for communication by the pickup of the handset. Then, when the carrier of the pager knows the vibration of the vibrating unit 14 and picks up the handset of the telephone, the line is connected. When the pager's carrier moves and is near another telephone, the telephone line with the other party is connected by dialing the extension number of the telephone at his seat from that telephone.

The transmission unit 17 transmits the ID stored in the storage unit 15, and the transmission control unit 16 controls the transmission. Although not shown, these are connected to a computer of an exchange with a receiver at each entrance, and when entering / exiting, by reading the signal from the transmission unit 17 together with the key information of “IN” and “OUT”, each subscriber number can be read. It is used to register and manage presence / absence.

Next, a specific configuration of the pager and an example of processing by the exchange will be described.

FIG. 3 is a diagram showing an example in which a pager is incorporated in a name plate, and FIG. 4 is a diagram for explaining an example of processing of an exchange used in a silent telephone system.

When the pager is incorporated in the name plate, as shown in the front view of FIG. 3 (a), the solar cell 21 is mounted as a power source on the upper side of the front name display area 22.
As shown in the back view of FIG. 3B, the circuit component 24 and the vibrator 25 can be attached to the lower side of the mounting portion 23. By doing this, the vibration of the vibrator 25 can be sensed by the chest by mounting the name plate in the chest pocket with the mounting portion 23 including the pins and clips.

When the telephone number (subscription number) dialed as shown in FIG. 4 is received as a call signal, the processing for the call in the exchange 2 is performed when "present / absent" is recognized. If a judgment is made and “absent”, absent processing is performed and the process ends (return), and if “absent”, the subscription number is transmitted to all parent devices. At the same time, call the telephone with the subscription number. Then, it waits for a response for a certain period of time, if there is a response, it enters the call mode, and if there is no response, it cancels the call, performs absent processing such as sending an absent message to the other party, and ends. In this case, if the transmission of the subscription number from the exchange to the master unit is stopped at once, the exchange can immediately respond to the next telephone call. On the other hand, when the pager recognizes the joining number, the pager may hold the signal and output the calling signal a predetermined number of times. Further, in the absence process, for example, in addition to outputting an absence message, connection with an answering machine or transfer to another person may be performed so as to be able to perform proxy reception.

FIG. 5 is a diagram for explaining an example of transmission timings of subscriber numbers and frequency allocation when a call is made.

The subscription number is transmitted from the exchange to each parent telephone, and then transmitted from each parent telephone to the pager carried by each person. In the transmission, for example, as shown in FIG. 5A, a synchronizing signal syn having a frequency f0 is used, and at the time when the synchronizing signal syn is assigned, each of the subscription numbers, ... It can be used as a subscription number, and the problem of interference can be solved. Also,
As shown in FIG. 9B, the same frequency f1 may be used for both the synchronization signal and the subscriber number. Further, if one used frequency f1 is transmitted with a combination of a plurality of frequencies f2 and f3, reliability can be improved. Moreover, even in this case, the frequency to be used can be significantly reduced as compared with the case where a different frequency is assigned to each subscription number.

FIG. 6 is a diagram for explaining an example of presence / absence registration processing. The registration of "present / absent" waits for an entry / exit input as shown in FIG. 6, and if there is an entry, identifies either the number or the entry / exit. Then, in the case of "ON", the subscription number is registered in "in-room", and in the case of "RETURN", the subscription number is registered in "absent".

The present invention is not limited to the above embodiment, but various modifications can be made. For example, in the above embodiment, the joining number is defined as the time difference from the synchronization signal, but it is also possible to combine and code signals of several timings, or generate a coded signal within the transmission time of one signal. You may use what was done. In addition, a lamp such as a light-emitting diode is also attached to the telephone, and when a call is called, the lamp blinks or lights to notify
It may be configured to restrict use by a third party. For calling, the calling station may be omitted by appropriately disposing a calling means separately from the parent telephone, such as mounting an antenna on the ceiling. Furthermore, the transmission signal to the pager may include not only the subscriber number and external / extension signal but also a simple message, and a display such as a liquid crystal may be attached to the pager to display and output the message. However, in addition to the name plate, the pager may be attached to a magnetic card, an ID card, or any other existing mobile card, or may be attached to an accessory such as a tie pin or a wrist watch band. Of course, a dedicated mobile unit such as a pager may be used. Needless to say, a battery other than the solar battery may be used as the power source.

[0031]

As is apparent from the above description, according to the present invention, the other party's telephone number can be dialed directly by dialing the other party's telephone number, so that the other party's telephone can be called without intermediary. You will not be forced to interrupt your work. Since the subscriber number is serially assigned in a time division manner, it is possible to eliminate interference with a small frequency for transmitting the subscriber number. Moreover, since the telephone of the called party is called in cooperation with the pager's calling, it is possible to immediately talk to the called party without waiting for the call from the called party as in the pager system. Therefore, silent call can be made even in an office with many telephones, and noise in the office can be reduced. Also, since the pager is called and the telephone is called, communication similar to that of the cordless telephone system can be performed with the telephone fixed even if the user freely moves within a predetermined area. As described above, it is possible to easily communicate with anyone anytime, anywhere without having to carry an expensive cordless phone. Furthermore, security can be improved by using it to manage entry and exit.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a silent telephone system according to the present invention.

FIG. 2 is a diagram showing a configuration example of a pager carried by each person.

FIG. 3 is a diagram showing an example in which a pager is incorporated in a name plate.

FIG. 4 is a diagram for explaining an example of processing of an exchange used in a silent telephone system.

FIG. 5 is a diagram for explaining an example of transmission timing of a subscriber number and frequency allocation when a call is made.

FIG. 6 is a diagram for explaining an example of presence / absence registration processing.

FIG. 7 is a diagram showing a configuration example of a pager system.

FIG. 8 is a diagram showing a configuration example of a cordless telephone system.

[Explanation of symbols]

1 ... Telephone, 2 ... Exchange (PBX), 3-1 to 3-n ...
Master phone, 4-1 to 4-n ... Slave phone, 11 ... Receiver,
12 ... Judgment processing unit, 13 ... Driving unit, 14 ... Vibration unit, 15
... storage unit, 16 ... transmission control unit, 17 ... transmission unit.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical indication location H04Q 7/12 3/58 101 7/38 (72) Inventor Takehiko Kijima 2-chome, Kyobashi, Chuo-ku, Tokyo 16-1 Shimizu Corporation (72) Inventor Hideki Takahashi 2-16-1 Kyobashi, Chuo-ku, Tokyo Shimizu Corporation

Claims (3)

[Claims] 1. A silent telephone system for wirelessly calling a telephone by requesting a call between subscriber telephones, comprising: transmitting means for transmitting a subscriber number by a radio signal; and a subscriber number which is set by receiving a radio signal. The receiving means for outputting a calling signal on the condition that it matches the subscriber number, a plurality of subscriber telephones having the subscriber number, and the subscriber number for the transmitting means when there is a call request from the subscriber telephone with the subscriber number. A silent telephone system characterized by comprising an exchange having a function of instructing transmission of a subscriber number and calling a subscriber telephone of the subscriber number, and transmitting the subscriber number in a time division manner. 2. The silent telephone system according to claim 1, wherein the transmitting means is configured to be provided in a specific master unit among the plurality of subscriber telephone sets. 3. The silent telephone system according to claim 1, wherein a plurality of numbers are assigned to one subscriber telephone and a receiving means is provided for each number.