JPH02150152A - Telephone system - Google Patents

Abstract

PURPOSE:To know that a person carrying a portable transmitter corresponding to a second telephone set is near a first telephone set by displaying the telephone number of the first telephone set on the second telephone set. CONSTITUTION:For example, when the possessor of a telephone set T3 moves from the set place of the telephone set T3 to the set place of a telephone set Tn, the telephone set Tn detects oscillating frequencies f3 inherent in the possessor of the telephone set T3, the telephone number corresponding to the f3 stored into a storage part 8 beforehand is fetched, and it is sent through a private branch exchange to the telephone set T3. Further, the telephone set T3 displays the telephone number on a display part 19. Thus, that the possessor of the telephone set T3 has moved near the telephone set Tn is known.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a telephone system having a plurality of telephone devices.

[Prior Art] In a conventional private telephone system, if a person moves far away from his or her seat or desk, the person does not know where he or she is going unless he or she writes down the fact. This kind of situation is commonplace on large floors, and if the person in question is in a meeting or moving to another department, it becomes impossible to contact him or her.

Several telephone systems exist to overcome these drawbacks.

For example, in a call forwarding system, if the destination is known in advance, the telephone number of the destination is stored in the telephone device, and when the telephone device receives an incoming call, the telephone device is automatically called. This is to make a call to the telephone device at the destination. Therefore, it becomes possible to make a call from the telephone device at the destination.

[Problems to be Solved by the Invention] However, the conventional example described above is inconvenient if the destination is not known in advance.

Furthermore, even if the destination is known in advance, it becomes meaningless if the user moves further from the destination.

[Means for Solving the Problems] According to the present invention, a portable transmitting device having means for transmitting a wireless identification signal, a receiving means for receiving a wireless identification signal,
a first telephone device having means for transmitting its own telephone number to a second telephone device corresponding to the radio identification signal received by the receiving means; and displaying the telephone number of the first telephone device that received the radio identification signal. by providing a telephone system characterized in that the second telephone stirrup has means for detecting, in the second telephone device, that the carrier of the mobile transmitting device is near the iML talking device; be able to.

[Embodiment] FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, which includes a display section 19 that displays the telephone number of the destination and a receiver that receives the oscillation frequency of the oscillator that the individual has. There is.

The operation will be explained in order with reference to FIG.

In the figure, 1 is an antenna that receives a radio signal of frequency f (f is different for each individual) emitted from an oscillator carried by each individual. Each person is assigned a name number to distinguish them from others.

Reference numeral 2 denotes a bandpass filter section for filtering the received wave of oscillation frequency f8 received from the antenna l, and the received wave is sent to the frequency conversion section 3 via this filter section.

At this time, the frequency converter 3 inputs the received wave and the output wave of the frequency synthesizer 4, and outputs the frequency component of the difference and sum of the two waves.

The output wave is further removed by a bandpass filter 5 to remove unnecessary wave components, extract only the desired wave component, and then sent to a carrier amplifier 6.
The desired wave component is increased by rlJ. The peak detection section 7 extracts the peak value of the output of the carrier amplification section 6, converts the peak value into a voltage, and sends it to the control section 8. Reference numeral 9 denotes a storage section in which data corresponding to the reception frequency is stored.

The broken line section B is a telephone section, IO is a key input section, and 11 is a tone conversion section which generates a tone corresponding to the data sent from the control section 8.

Reference numeral 12 denotes a data conversion unit which converts the tone inputted from the line into data corresponding to the tone and sends it to the control unit 8. 1
A switching section 3 switches between a tone signal and a voice signal from the line in accordance with a switching signal sent from the control section 8, and sends the signal to each section. Reference numeral 14 denotes a transmitting unit, such as a microphone. Reference numeral 15 denotes an amplifying rfJ section for amplifying the audio signal; 16, an amplifying section for amplifying the audio signal inputted through the switching section 13; and 17, a receiving section for receiving the audio signal, such as a speaker. Reference numeral 18 denotes a line coupling section formed of a hybrid coil or the like. Reference numeral 19 is a display section that displays telephone numbers and the like.

FIG. 2 is a diagram showing how this embodiment is used.

In the figure, 20 and 21 are telephones of this embodiment, and 22 to 25 are small oscillators carried by each individual as a moving body.

f ,, f 2 + f y... fo is the oscillation frequency of the oscillator and has a constant interval (i.e. f I - f 2 = f
2f,=-=f,,-fn=B (constant)). The broken line indicates the area where telephones T, , T, or f1 to fn can be received, and the area is narrower than the telephone in a radius of 2 to 3 meters.

For example, if the owner of the telephone T3 moves from the installation location of the telephone T3 to a location near the installation location of the telephone aTn, the oscillation frequency f3 unique to the owner of the telephone T3 is detected from the telephone Tn, and the oscillation frequency f3 is detected by the telephone Tn. f stored in 8
3.1 corresponds to 1. Import the phone number, for example 5534,
It is sent to telephone RT 3 via the private branch exchange.

By displaying the telephone number 5534 on the display unit 19, the telephone T3 identifies the owner of the telephone T3 or the telephone T. (
You can see if you are moving near the phone number 5534).

The detection method will be explained in detail.

FIG. 3 is a block diagram showing the configuration of the frequency synthesizer 4 of FIG. 1. In FIG. 3, a broken line section 4 indicates a frequency synthesizer. 27 is a PLL (pulse locked loop) section, 28 is a loop filter section, 29 is a voltage controlled oscillator section, and vCO 130 is an oscillator with temperature control.

According to the control data from the control unit 8, the frequency synthesizer 4 calculates f', f'2-f'n (where t',>t;
A reference signal with a frequency of >...>f'n) is always output at a constant cycle and is on standby so that it can receive the oscillation frequency from the oscillator owned by the user. For example, if an oscillator with an oscillation frequency f3 approaches the receiving area of the telephone fn, the frequency converter 3 converts the frequency synthesizer 4
Depending on the output frequency of f/, ±fyu, f′2±f*,
A frequency spectrum of f'x±f3...fn±f3 is output in time series. The frequency spectrum of : is input to the bandpass filter section 5. Here, the center frequency of this bandpass filter 5 is fa (fa=f'r-f 1f Z-f l
f'+-f
= f l-f a, f z-f zs"f n-1-
f n) to be smaller than ((BIB)
.

As a result, only fZfs passes through the bandpass filter 5. That is, only when the frequency synthesizer 4 outputs the frequency f'3. It becomes possible to determine the frequency f3 of the approaching oscillator.

Therefore, by storing in advance the telephone number 2001 of the telephone T3 owned by the person carrying the oscillator that emits the frequency f3 in the storage section 9, it is possible to know the telephone number owned by the person carrying the oscillator.

By transmitting the telephone number to the telephone T3 and displaying the telephone number of the destination, it is possible to determine which telephone the user has moved near.

That is, the control unit 8 gives the frequency f to the frequency synthesizer 4.
When the reference signal '3 is output.

If the peak detection unit 7 detects a peak, the telephone T3
The control unit 8 determines that the owner of the vehicle is nearby. and,
Read out the person's name number, telephone T3 and own office extension number (2001 and 5534) corresponding to frequency f3, and then read the telephone T3 and own extension numbers (2001 and 5534).
Notify 3 of his own extension telephone number (5534) and the person's name number for f. This notification of the extension number of the own station is carried out by, for example, DTMF (DualTone Multi-French).
It is only necessary to send it by a signal (queency). On the other hand, the telephone T3, which has received the notification of this extension number, decodes the DTMF signal received from the extension telephone number (5534) of the other party and the person's name number, and displays them on the display unit.

Similarly, if a peak is detected during the output of f, then the telephone T,
determines that the owner is nearby.

Then, the telephone T corresponding to the person name number f corresponding to fl, and the own extension number (2001 and 5051)
is read out, and furthermore, the own extension telephone number (s
osi) and the person's name number.

Therefore, phone 4j! In T, one can know the extension number of a telephone near the location of its owner.

[Other Examples] Although the receiver A is provided inside the telephone, the receiver A may be provided outside the telephone.

It is also possible to install a frequency synthesizer 4 on the receiver A to detect the oscillation frequency of a nearby oscillator, or conversely, it is possible to install a frequency synthesizer on the oscillator side so that the receiver can receive only a single frequency. It is.

Doing so leads to miniaturization of the receiver side.

Further, although the destination is displayed in this embodiment, it is also possible to automatically make a call when there is an incoming call to the telephone T1.

[Effect of the invention] By displaying the telephone number 8 of the first telephone device on the second telephone device, it is known that the person carrying the mobile transmitting device corresponding to the second telephone device is near the first telephone device. Can be done.

Therefore, according to the present invention, when a call is made to the second telephone device to a person carrying a mobile transmitting device corresponding to the second telephone device, the telephone number of the first telephone device displayed on the second telephone device You can transfer by number.

[Brief explanation of the drawing]

FIG. 1 is an embodiment of a telephone device according to an embodiment of the present invention, FIG. 2 is an explanatory diagram of a system according to an embodiment of the present invention, and FIG. 3 is a block diagram of a frequency synthesizer in a telephone according to the present invention. 4 is a frequency synthesizer 9, and a storage section 19 is a display section.

Claims (1)

[Scope of Claims] A mobile transmitting device having means for transmitting a radio identification signal, a receiving means for receiving the radio identification signal, and a second telephone device corresponding to the radio identification signal received by the receiving means to transmit a mobile phone to the user's own telephone. and a first means for transmitting the number.
1. A telephone system comprising: a second telephone device; and a second telephone device having means for displaying the telephone number of the first telephone device that has received a radio identification signal.