JPS61208931A - Radio paging system - Google Patents

Abstract

PURPOSE:To allow a caller to recognize the state of a called party by transmitting a reply signal comprised of codes when a pager possessor confirms a call, decoding the reply signal at a base station and informing the signal to the caller. CONSTITUTION:A signal received in a pager via an antenna 1 and an antenna switch 2 is demodulated by a reception RF circuit 11, a demodulation signal is led to a decoder 12, and when it is discriminated that the call is addressed to the own pager, a beeper 13 is energized to inform the call to the possessor. When the pager possessor confirms the call to the own pager, an operation circuit 23 is operated to activate a power supply control circuit 3 to apply power to a transmission RF circuit 21 and an encoder 22. The encoder 22 encodes the content of operation inputted to the circuit 23 to generate a code in response to the content of operation. The code is led to the circuit 21 to modulate the carrier, the result is amplified and irradiated from the antenna 1 via the switch 2. The radio wave is received by the base station, where the signal is decoded and informed to the caller as the status of the called party.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a radio paging system, that is, a radio paging system, mainly used in premises.

[Conventional technology]

Conventionally, in Japan, this type of wireless paging system has generally been a one-way paging system typified by pager service 42 provided by Denden Corporation (as of 1981). In other words, when a specific person who owns a pager has a request, a unique number assigned to that pager is called by telephone, and in response to this call, the called person The caller has no way of knowing whether the caller answered or not.

[Problem that the invention seeks to solve]

In the conventional paging system described above, information is passed one-way from the caller to the called party, so it is possible to increase the amount of information and use a variety of C2s to display characters and store messages on the pager side. (2) is not practical in any way.

The called party may not have a pager, or may be in a place where radio waves cannot reach.What the caller wants to know is 1) whether the called party was able to confirm the call; 2) The called party often wants to know what situation the called party is currently in. Current wireless paging systems cannot meet such demands.

[Means to solve the problem]

The present invention provides a system in which, when a call is made and the pager owner confirms the call, (2) an operation means operated by the pager owner to respond, an encoder that generates a code according to the content of the operation, and the code The pager includes means for modulating and amplifying the response signal and transmitting it as a response signal, means for receiving and demodulating the response signal, a decoder for decoding the demodulated response signal, and transmitting the decoding result by the decoder to the caller ( 2) By providing a means for notifying the base station, the caller will know that the called party has confirmed the call, and will also be able to know what state the called party is currently in (
2) so that the caller knows whether the

〔Example〕

Two embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the pager side of the wireless paging system according to the present invention.Antenna 1 is used only for receiving in conventional pagers, but in the present invention it can also be used as a transmitting antenna. used. The antenna duplexer or antenna switch 2 is used during transmission (to avoid any adverse effects from the transmitted RF power). The demodulated signal is guided to the next decoder 12I, which determines whether the call is for self C: and if the call is for self, makes the beer 13 ring;
Inform the owner. Although not shown in FIG. 1C2, a circuit for storing or displaying the decoded output of the decoder 12 as a message may be added as necessary. Next (=, the transmission system of FIG. 1 will be explained. One or more button switches, or it 1: Operation circuit with similar input means 2
3 is operated when the called party, that is, the owner confirms the call to himself.

Of the transmission system, the transmission RF circuit 21 and encoder 22 are always in a non-energized state and do not consume power. When the operation circuit 23 is operated, the power control circuit 3
Power is supplied to the encoder 22.

The encoder 22 interprets the operation content input to the operation circuit 23 and generates a code corresponding to the operation content (:).

This code is transmitted to the transmitting RF circuit 21 (2), modulates an appropriate frequency carrier, amplifies the power C to an appropriate size, and then radiates from the antenna 1 via the antenna duplexer 5'-2. This radio wave is received by the base station, decoded and interpreted, and then reported as the calling party's (2) called party status.

FIG. 2 is a block diagram of an embodiment on the base station side. When a call occurs, if the caller uses a telephone, he or she dials the pocket number that should belong to the called party, or operates a dedicated console to initiate a call to the called party. When a caller or an operator calls a called party using a telephone, 30 is a telephone line and 31 is a pager exchange.When a caller or an operator calls a called party by operating a dedicated console, In some cases, 31 serves as this dedicated operator console.Whether it is through the telephone line C or the desk console, when a call operation is performed, this information is transferred to the encoder 32 (: led to and encoded with a number unique to the called party. and input it to the transmitter 33,
It becomes a modulated radio wave and reaches Pocket Pell. In commercial Bocket Pernavi, there is not only one transmitter,
They are distributed in several locations. In the in-premises paging system, which is the main application of the present invention, the transmission power is not very necessary; rather, it must be lower than the value specified in the current radio law (2), so the number of transmitters is one, and the antenna is 34. -1 to 34- It may be preferable to arrange the emergency services in various places within the premises (in many cases, it may be preferable to arrange them in two locations. Next C2, 2nd
The confirmation signal receiving system shown in the figure will be explained. The received signals of the called party are added together and demodulated by the receiving circuit 43. The decoder 44 interprets whether the received signal is a confirmation signal from which called party or what type of status signal it is. As a result of the interpretation (2), the audio generation circuit 45 synthesizes a talkie or generates a tone signal according to the status signal. Causes a noise.

FIG. 3 is a block diagram of another embodiment on the pager side. The pager outputs a beeping sound when called. In this embodiment, the owner of the pager manually activates a switch to turn off the beeper sound, or if the owner of the pager does not perform this manual operation, the beeper sound is emitted for a certain period of time and then the beeper sound is output automatically.
Rather than stopping the beeper sound, the beeper sound is output for a predetermined period of time. When the beeper sound is output (when the switch f61y of the second operation circuit 23 is turned on, the memory circuit 51 outputs the OR circuit 53
At the same time, the encoder 22 is activated by the output of the AND circuit 56 and a response signal is sent.

Also, memory circuit! A beeper sound is output for a specified period of time by a timing circuit based on y4 and timer 55 (2).The beeper sound at this time has a frequency different from that at the time of ringing, or a different intermittent cycle (2) to notify the owner that a response signal has been sent. It is designed to be clearly understood.

〔Effect of the invention〕

As explained above, (2) the present invention adds a small power transmitting circuit, an encoder, and some other circuits to the pager side,
By adding a receiving circuit, a decoder, an audio signal generating circuit, etc. to the base station side (the second is a receiving circuit, a decoder, and an audio signal generating circuit), the caller can grasp the callee's movements at a level far beyond that of conventional commercial Pocket Pel services. effective.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the pager side of the wireless paging system according to the present invention, FIG. 2 is a block diagram of an embodiment of the base station side, and FIG. 3 is a block diagram of an embodiment of the pager side of the wireless paging system according to the present invention.
It is a block diagram of another embodiment of the side. 1......Transmitting/receiving antenna 2.
・・・・・・・・・・・・・・・Antenna switch or duplexer 3・・・・・・・・・・・・・・・Power control circuit 4
・・・・・・・・・・・・・・・Package 11・・・・・・・・・・・・Reception RF subcircuit 2
・・・・・・・・・・・・・・・Decoder 13・
・・・・・・・・・・・・・・・B-Pa21...
.........Transmission RF circuit 22...
・・・・・・・・・・・・Encoder 23-・・・・・・
......Operating circuit 30...
...Telephone line 31...
...Exchange machine or dedicated operation console 32...
...Encoder 33...
・Transmitter 34・・・・・・・・・・・・・・・
Transmitting antenna 41...... Receiving antenna 42... Signal coupling circuit 43... ...Reception circuit 4
4・・・・・・・・・・・・・・・Tekoda 4
5......Audio generation circuits 51, 54...Memory circuits 52, 51s
・・・・・・・・・Timer 53・・・・・・・・・
...... Child circuit 56...
・・・・Amme circuit 61・・・・・・・・・・・・・
・・Swin″f.

Claims (1)

[Claims] 1. In the wireless paging system, there is a call,
An operating means operated by the pager owner to respond when the pager owner confirms the operation, an encoder that generates a code corresponding to the operation content, and a modulation and amplification of the code as a response signal. The pager is equipped with means for transmitting, and the base station side is equipped with means for receiving and demodulating the response signal, a decoder for decoding the demodulated response signal, and means for notifying the caller of the decoding result by the decoder. A wireless paging system characterized by: 2. When a pager is called, the current status of the called party can be reported to the caller and the content of the status can be decoded depending on the type of operation performed by the pager owner. The wireless paging system described in Section. 3. The wireless paging system according to claim 1, wherein the means for notifying the caller of the decoding result is a voice generating means or a visual display means.