JP3038023U - Pager - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a pager having a transmitting / receiving function. A transmission / reception controller that controls a state of emitting a radio wave signal to the outside world or receiving a radio wave signal of the outside world, and a launching circuit that processes a low frequency signal into a high frequency signal that can be launched to the outside world, After receiving the high frequency signal of the outside world and performing filtering processing, the receiving circuit that makes a low frequency signal, the encoder that processes and codes the identification representative number and transmits it to the emission circuit, and the signal obtained by the receiving circuit In addition to having a decoder for decoding, an input / output device with a call key for calling other pagers, a buzzer for generating voice when called, and a standby key for putting the pager in standby It is equipped with a microprocessor for controlling circuits and processing signals.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a kind of pager, and more particularly, to a pager having both receiving ability and transmitting ability.

[0002]

[Prior art]

 Well-known pagers have only reception capability, and they were called by telephone.

Further, there is a group-type pager used for a short distance, which includes one pager master unit and a plurality of pager slave units. The pager master unit includes a modulator, an encoder, And a call key, the pager slave is equipped with a demodulator, a decoder, and a buzzer, and when calling a pager slave that is the master of the pager, press the corresponding call key that faces the slave. , Each slave unit determines whether or not it is being called by the decoder, and only the called slave unit produces a sound with a buzzer.

Recently, the application of the pager system in a small area has become increasingly popular, but the power of the station stand that emits the signal is not large, and in such a pager system, each pager is It was not able to launch the signal, only to receive it. For example, U.S. Pat. No. 5,218,344 was concerned with such a pager system. In addition, the traditional pager system is considered to be a unidirectional system, that is, the user only receives the signal from the base, but cannot dynamically generate the signal.

In addition, US Pat. No. 4,882,579 provides a single base and a handset-type pager that responds automatically with a signal. However, with this technique, it was not possible to call between handset-type pagers.

[0006] In many cases, the functionality of both traditional pagers and pagers that have undergone the above-mentioned improvements were actually limited.

As an example, when a family of four to five people is shopping at a large shopping center, the father carries the parent machine, the other family carries the child machine, and the father voluntarily carries the child machine. You can call a child's handset and imply the carrier to go to a predetermined meeting place. However, the function of this pager is actually finite, that is, if a child is carrying a child machine, and the child tries to get permission to buy from the father, Could not be called.

[0008] Although some people suggest the use of transceivers to solve the above-mentioned problems, the number of air channels is actually limited, and when a large number of people use it at a shopping center, There was considerable interference and, therefore, was not a practical solution to the problem.

[0009]

[Problems to be solved by the device]

 The present invention has a discrimination ability, a reception ability and a transmission ability, and therefore is suitable for use in a small group, provided to each member of the group to be called by each other, and capable of selectively responding by the discrimination ability. The challenge is to provide pagers.

[0010]

[Means for Solving the Problems]

 The invention of claim 1 is one transmission / reception controller, which can control the state of emitting a radio wave signal to the outside world or receiving a radio wave signal of the outside world, and one transmission circuit. , One that processes low-frequency signals into high-frequency signals that can be emitted to the outside world, one receiver circuit that can filter high-frequency signals from the outside world and convert them into low-frequency signals, and one encoder The one that can be transmitted to the transmitting circuit after processing the representative number and coded is one decoder, the one that decodes the signal obtained by the receiving circuit, and the one input / output device. , At least one call key, one buzzer, and one standby key, the call key is used to call other pagers, and the buzzer can generate a voice when the pager is called. The standby key is a pager that can put the pager in a standby state and a microprocessor that can perform electric circuit control and signal processing. , The pager can be placed in a standby state for reception of radio signals from the outside world at any time, and after the user presses the call key to call another pager, the transmission / reception controller is set to the state of emitting radio signals. At the same time, the representative number signal is coded by the encoder and then emitted to the outside world via the transmitting circuit. It has one identification representative number, and when the pager receives a signal from the outside, it is called after comparing with the identification representative number after decoding by the decoder. The pager is characterized in that the buzzer generates a voice when it is called, and then the buzzer stops the voice generation when the user presses the standby key. .

The invention of claim 2 is characterized in that the input / output device further comprises one display device, and the display device is used to display the caller when the page bell is called. The pager described in item 1.

The invention of claim 3 provides the pager according to claim 1, wherein the input / output device further includes one microphone and one speaker.

According to a fourth aspect of the invention, the pager according to the third aspect is characterized in that the microphone and the speaker are controlled by one transmitting / receiving switching key.

The invention of claim 5 provides the pager according to claim 1, characterized in that at least one of an encoder and a decoder is included in a microprocessor.

[0015]

[Embodiment of the invention]

 The pager of the present invention comprises one transmission / reception controller, one transmission circuit, one reception circuit, one encoder, one decoder, one input / output device and one microprocessor. Among them, the transmission / reception controller controls the state of emitting a radio wave signal to the outside world or receiving the radio wave signal of the outside world. The launch circuit processes the low-frequency signal to produce a high-frequency signal that can be launched to the outside world. The receiving circuit receives the high frequency signal from the outside world, filters it, and forms a low frequency signal. The encoder processes and codes the representative number and transmits it to the firing circuit. The decoder decodes the signal obtained by the receiving circuit. The I / O device is equipped with at least one call key, a buzzer and a standby key, which is used to call other pagers, the buzzer makes a sound and waits when the pager is called. The key is used to force the pager to stand by. The microprocessor controls an electric circuit and performs signal processing.

The user can press the call key to call another pager, at which time a single or several sets of identification representative numbers are transmitted, and the pager called up compares the identification representative numbers. After that, a buzzer sounds to alert the wearer. At this time, the called person can respond by the calling method or can communicate with the calling person directly through the firing method.

When the present invention is used in a small group, the pager carried by each member of the group has no distinction between the base unit and the handset, and therefore the small group user can effectively use one pair. The rate of occurrence of interference with pager of other groups in the communication using voice function by communicating in one-to-one, many-to-many, and many-to-many methods and transmitting by the identification representative number. Can be reduced.

[0018]

【Example】

 As shown in FIG. 1, the pager 10 of the present invention includes an antenna 12, a transmission / reception controller 14, an input / output device 20, a transmission circuit 30, a reception circuit 40, and an encoder 55. , One decoder 60, one amplifier 65, and one microprocessor 70. The input / output device 20 is an element that inputs and outputs signals. The receiving circuit 40, the decoder 60, and the audio signal amplifier 65 constitute a receiving function. The transmission circuit 30, the modulator 50, and the encoder 55 constitute a transmission function. The microprocessor 70 has a circuit control function and a signal control function.

As shown in FIG. 2 and FIG. 3, it is assumed that four persons carry the pagers 10 of A, B, C, and D of the present invention having different identification representative numbers, respectively. Then, a description will be given below.

In a normal state, the pager 10 is kept in a standby state, and is in a power saving mode to stand by for a call.

When the user of the A pager wants to call the user of the B pager, the A pager user is more likely than the call key 22 including four push keys A, B, C, D B Press the key and select it. Then, the microprocessor 70 encodes the identification representative number of B and the identification representative number of A itself by the encoder 55 and then sends them to the transmission circuit 30. At the same time, the microprocessor 70 switches the transmission / reception controller 14 to the emission signal function. The above-mentioned identification representative number is emitted from the antenna 12.

The transmission circuit 30 includes one power saving management circuit 31, one high frequency vibration circuit 32, and one radio wave amplification circuit 33. The power saving management circuit 31 holds the power saving state when the signal to be transmitted from the transmission circuit 30 is not received, and is controlled by the microprocessor 70. The power saving management circuit 31 can be easily achieved by those skilled in the art, and thus detailed description thereof is omitted here.

In addition to this, in the present embodiment, a function of the microphone 21, which is not provided in a general pager, is further added. This function is an additional function for those who need a call. The user can switch the function to be used between the microphone 21 and the speaker 27 by controlling the microprocessor 70 by operating the transmission / reception switching key 23. The voice generated by the user passes through the microphone 21, the voice signal amplifying and filtering device 52, and is then converted into a radio wave signal format by adjusting the modulator 50, and further transmitted to the transmission circuit 30 and transmitted from the antenna 12. It

When the user of the B pager is called by the user of the A pager, radio waves enter the receiving circuit 40 via the transmission / reception controller 14. At this time, if the incoming signal has the identification representative number of B and the identification representative number of A, it is decoded by the decoder 60 and has the identification representative number of B. After generating a voice to call the attention of the user of the B pager, and after identifying the identification representative number of A, for example, the display 25 that displays an LED displays that the user of the A pager is calling. indicate.

At this time, when the user of the B pager presses the standby key 24, the pager 10 is forcibly restored to the standby state and the buzzer 25 stops ringing. The user of the B pocket bell can also switch to the function of the microphone 21 or the speaker 27 by pressing the transmission / reception switching key 23. The talk / receive switch key 23 is designed as a single push key, and when the user presses the talk / receive switch key 23, the microprocessor 70 activates the audio signal amplifying and filtering device 52 to cause the speaker. Start 27. Similarly, after the user depresses the standby key 24, both the audio signal amplifier and the filter 52 are turned off.

The receiving circuit 40 includes a front end processing unit 41, an analog / digital converter 42, and a demodulator 43. The main functions of the front end processor 41 are to filter and remove the carrier and to send the processed signal to the analog-to-digital converter 42 and the demodulator 43. If the input signal is the signal of the identification representative number, the analog-digital converter 42 further sends the signal to the decoder 60 for decoding. If it is a voice signal, the demodulator 43 further sends the signal to the voice signal amplifier 65.

For the transmission / reception operation of the pager 10, refer to the reception and transmission flowcharts of the present embodiment shown in FIGS. 4 and 5. This control operation is completed by the microprocessor 70.

The flow chart when called is shown in FIG. When the pager 10 in the standby state receives a call to itself, the buzzer 25 generates a sound and the display 26 displays who is calling. At this time, if the user presses the standby key 24 or activates the microphone / speaker by pressing the transmission / reception switching key 23, the user can talk with the caller and press the standby key 24 after the conversation is completed. If so, it returns to the standby state again.

A flowchart for calling another person is shown in FIG. After the caller presses the call key 22, the transmission of the signal of the identification representative number starts, and at this time, the speaker 27 waits for a response from the other party. At this time, the user presses the standby key 24 to disconnect the function of the speaker 27, or the function of the buzzer 27 and the speaker 27 is switched by the transmission / reception switch key 23 to talk with the person who called the conversation. When the standby key 24 is pressed after completion, the standby state is restored.

The electrical circuit diagram of the present invention will be described below. FIG. 6 is an electric circuit diagram of the transmission / reception controller 14. This is a simple control circuit, and the microprocessor 70 controls the function of reception and transmission of the antenna 12 by one IC (that is, U1, for example, Sony CXG1006N is used).

FIG. 7 is an electric circuit diagram of the front end processor 41. The circuit is divided into two main circuits, a filtering processing circuit 411 and a carrier wave removing circuit 412. Since the circuit is a traditional electric circuit, detailed description thereof is omitted here. Among them, SWA1 and SWA2 are surface filters (for example, RF1211, RO 211E series manufactured by Momolitics Inc. are used respectively), and U2 is an IC (UAS3201T manufactured by Philips Semiconductor) that receives an RF signal. Whether the radio wave signal is an identification representative number signal or a sound wave signal, both are sent to the analog / digital converter 42 and the demodulator 43 through filtering and carrier wave removal.

FIG. 8 is an electric circuit diagram of the demodulator 43. Since the circuit is a traditional electric circuit, detailed description thereof is omitted here. Among them, the counter 431 is arbitrary and U3 is a 555 vibrator.

FIG. 9 is an electrical circuit diagram of the analog-to-digital converter 42, which converts an analog signal into a digital signal and then sends it to the decoder 60.

FIG. 10 is an electric circuit diagram of the modulator 50 of the present invention. Since the electric circuit is a traditional electric circuit, a detailed description thereof will be omitted here. Among them, U4 is a voltage regulator LM317 and U5 is an oscillator.

FIG. 11 is an electric circuit diagram of the decoder 60. An IC with a code number MC145028 made by Motorola can be used for U6, and U6 processes a sequence digital signal into a parallel signal. Multiple sets of identification representative numbers can be set, and it has the function of comparing each identification representative number and the logic operation.

The sequence digital signal sent from the analog / digital converter 42 is first processed by U6 to be a parallel signal, and the signals are compared. When transmitting the identification representative number, it is desirable that three sets of identification representative numbers of the calling party, the called party, and the group are transmitted. The identification representative number of the group is set by the group identification representative number setting key 81. Since the present invention is adapted to be used in a small group, a common identification representative number is used in each small group. Can be distinguished from the users of the group. When called, the decoder 60 first identifies whether the identification representative numbers of the groups are the same, and whether it is called. If both are yes, send a signal to the microprocessor 70. After the user presses the standby key 24 or the transmission / reception switching key 23, the microprocessor 70 turns off the buzzer 25 via the control circuit to stop the sound generation operation. In addition, after comparing the caller's identification representative numbers, the originator of the call is displayed on the display 26 to show who the caller is.

After the user presses the standby key 24 or the transmission / reception switching key 23, the microprocessor 70 stops the sound generation of the buzzer via the control circuit, and the microprocessor 60 also controls the decoder 60 via another control circuit. A signal is sent and the display 60 is turned off by the decoder 60 to stop the display. Of course, the control scheme described above may be replaced by other schemes, for example, the display 26 may be directly controlled by the microprocessor 70.

FIG. 12 is an electric circuit diagram of the encoder 55 of the present invention. U7 can use IC of code number MC145026 made by Motorola a, U7 can set plural identification representative numbers, and each identification can be set. After encoding the representative number, a signal is transmitted by a sequence signaling method, for example, a method of sequentially transmitting three representative identification numbers of a group, a caller, and a called party. The identification representative number of the group is set by the group representative number setting key 81, and the callee is selected by operating the call key 22, and one signal is given to U7 through the processing by the microprocessor 70.

The functions achieved by the encoder 55 and the decoder 60 described above can be practically completed by the microprocessor 70 in terms of modern microprocessor 70 technology. Therefore, the present invention does not necessarily require the encoder 55 and the decoder 60.

FIG. 13 shows the appearance of the pager 10 of the present invention. The embodiment has a form in which the pager 10 is used in a small group of four users A, B, C, D, and thus the pager 10 has a B , C and D call keys 22 are provided. From the appearance, the antenna 12, the microphone 21, the transmitting / receiving switching key 23, the standby key 24, the buzzer 25, the display 26 and the speaker 27 can be seen.

The above embodiments are intended to describe the method that can be achieved by the present invention, and do not limit the scope of the invention.

[0042]

[Effect of the invention]

 The pager of the present invention has identification ability, reception ability, and transmission ability, and therefore is suitable for use in small groups, is carried by each member of the group and can call each other, and selectively responds by the identification ability. Can be done.

[Brief description of the drawings]

FIG. 1 is a functional structural block diagram of the present invention.

FIG. 2 is a block diagram of a calling method of the present invention.

FIG. 3 is a functional and electronic structure block diagram of the present invention.

FIG. 4 is a reception flowchart of the pager of the present invention.

FIG. 5 is a transmission flowchart of the pager of the present invention.

FIG. 6 is an electric circuit diagram of a transmission / reception controller of the present invention.

FIG. 7 is an electric circuit diagram of the front end processor of the present invention.

FIG. 8 is an electric circuit diagram of a demodulator of the present invention.

FIG. 9 is an electric circuit diagram of the analog-digital converter of the present invention.

FIG. 10 is an electric circuit diagram of a modulator of the present invention.

FIG. 11 is an electric circuit diagram of the decoder of the present invention.

FIG. 12 is an electric circuit diagram of the encoder of the present invention.

FIG. 13 is an external perspective view of the pager of the present invention.

[Explanation of symbols]

 10 pager 12 antenna 14 transmission / reception controller 20 input / output device 30 transmission circuit 40 reception circuit 50 modulator 55 encoder 60 decoder 65 voice signal amplifier 70 microprocessor 22 call key 31 power saving control circuit 32 high frequency vibration circuit 33 radio wave amplification circuit 21 Microphone 23 Transmit / Receive Switch Key 27 Speaker 52 Voice Signal Amplifier and Filter 25 Buzzer 24 Standby Key 41 Front End Processor 42 Analog-to-Digital Converter 43 Demodulator 65 Voice Signal Amplifier 411 Filter Processing Circuit 412 Carrier Removal Circuit 81 Group identification representative number setting key

Claims (5)

[Utility model registration claims] 1. A transmission / reception controller, which can control a state of emitting a radio wave signal to the outside world or receiving a radio wave signal of the outside world, and one transmission circuit, One that processes a high-frequency signal to produce a high-frequency signal that can be emitted to the outside world, one receiver circuit, one that can filter the high-frequency signal from the outside world and convert it into a low-frequency signal, and one encoder. , One that can be transmitted to the transmitting circuit after processing and coding the representative number, one decoder, that decodes the signal obtained by the receiving circuit, and one input / output device, at least one One paging key, one buzzer, and one standby key are provided.The paging key is used to call other pagers, and the buzzer is supposed to be able to generate a voice when the pager is called. The key is a pager capable of placing the pager in a standby state and a microprocessor capable of performing electric circuit control and signal processing. The bell can be placed in a standby state for receiving radio signals from the outside world at any time,
After the user presses the call key to call another pager, the transmission / reception controller is set to the radio signal emission state, and the representative number signal is encoded by the encoder, and then transmitted to the outside world via the transmission circuit. When the transmission / reception controller recovers to the state of being able to receive the external radio wave after the emission of the representative number signal is completed and the pager itself has at least one identification representative number and the pager receives a signal from the outside world, After decoding at the decoder, the identification representative number is compared to determine whether or not it is called, and if it is called, the buzzer generates a sound, and then the user presses the standby key and the buzzer sounds. Pager characterized by stopping the occurrence of. 2. The pocket according to claim 1, wherein the input / output device further comprises a display, which is used to display the caller when the pager is called. bell. 3. The pager according to claim 1, wherein the input / output device further comprises one microphone and one speaker. 4. A microphone / speaker has one transmission
The pager according to claim 3, wherein the pager is controlled by a reception switching key. 5. The pager according to claim 1, wherein at least one of an encoder and a decoder is included in a microprocessor.