KR100271600B1 - Radio paging receiver of having sub pager and method for formatting data - Google Patents

Abstract

PURPOSE: A paging receiver having an auxiliary pager and a data configuring method thereof are provided to enable a user to detect a message received to the paging receiver in a predetermined remote place from the paging receiver through an alarm sound or vibration, and to detect the alarm sound or vibration in a small-sized attachable auxiliary pager. And the method is provided to configure data transmitted to the auxiliary pager from the paging receiver. CONSTITUTION: In a paging receiver, the first controller(40) generates data stream configured with call data including synchronizing information and information for separating an alarm sound and self data. An IF(Intermediate Frequency) generator(60) receives the data stream, to demodulate the data stream for outputting. The second antenna(ANT2) transmits the IF to the public. In an auxiliary pager of the paging receiver, the third antenna receives the IF signal transmitted from the paging receiver. An IF receiver is turned on by receiving power during 1-bit time at predetermined intervals, and amplifies/filters/demodulates the IF signal received through the third antenna to output original data stream. An alarm unit generates alarms by predetermined control. And a micro controller receives data stream inputted during the 1-bit time and is synchronized by a synchronizing code of the data stream, to control the alarm unit and generate alarms according to call data included in the data stream.

Description

Radio call receiver having auxiliary call device and data construction method {RADIO PAGING RECEIVER OF HAVING SUB PAGER AND METHOD FOR FORMATTING DATA}

The present invention relates to a wireless call receiver, and in particular, can be mounted in a close position that can be recognized whether the reception of the call message received by the wireless pager, and has a secondary call device that can display the call message A wireless pager and a method of configuring data transmitted from a wireless call receiver to the auxiliary caller.

Currently, the wireless call receiver is widely used, and the function of the wireless call receiver is added to satisfy the needs of the user. In response, the wireless call receiver includes a two-way radio call receiver capable of bidirectional communication and a text radio call receiver capable of displaying a text service provided from a wireless call system and displaying the same on a liquid crystal display (LCD). Is being developed.

As the wireless call receiver with such a function comes out, the size of the wireless call receiver has resulted in a relatively large size compared to the conventional wireless call receiver. As a result, users often carry wireless call receivers in a convenient place to carry, such as bags or handbags.

As described above, when the user puts the wireless call receiver in a bag or a handbag, there is a problem that the alarm sound or vibration that is alarmed from the wireless call receiver is not detected when the message is received.

Therefore, an object of the present invention, when a message is received by the wireless call receiver, the user detects it through an alarm sound or vibration at a predetermined distance away from the wireless call receiver, and a close distance capable of detecting the alarm sound or vibration. It is to provide a small auxiliary calling device that can be attached to the, and a method of organizing data transmitted from the wireless call receiver to the auxiliary calling device.

In order to achieve the object of the present invention

In order to achieve the another object of the present invention, the present invention provides a method of configuring a secondary caller in a wireless call receiver, comprising: a first step of generating a sync code when a message is received by the wireless call receiver; And a third step of generating a call data and a third step of constituting a data stream by sequentially repeating the sync code and the call data for a predetermined time.

1 is a block diagram schematically showing a wireless call receiver and an auxiliary call device according to an embodiment of the present invention.

2 is a block diagram of a wireless call receiver according to an embodiment of the present invention.

3 is a diagram illustrating a configuration of a data format according to an embodiment of the present invention.

Figure 4 is a block diagram of a secondary call device according to an embodiment of the present invention.

5 is a view showing a battery saving operation of the auxiliary call device according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals have the same reference numerals as much as possible even if displayed on different drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a block diagram schematically illustrating an auxiliary calling apparatus of a wireless call receiver according to an exemplary embodiment of the present invention.

Referring to the drawings, the wireless call receiver 100 configures data in a predetermined format when a wireless call is received, and transmits an intermediate frequency signal carrying the data through an internal antenna. The auxiliary calling device 200 receives an intermediate frequency signal transmitted from the radio call receiver 100, demodulates the received intermediate frequency to detect a data format and a received electric field strength, and sets the received electric field strength and a predetermined reference. If the detected electric field strength is large compared to the voltage, an alarm is generated by an alarm sound or vibration.

2 is a block diagram of a wireless call receiver according to an embodiment of the present invention.

Hereinafter, referring to FIG. 2, the radio frequency unit (hereinafter referred to as an “RF unit”) 10 amplifies a weak radio signal received through the first antenna ANT1 and filters to detect only a desired signal. It outputs intermediate frequency by mixing with local oscillation frequency. The demodulator 20 demodulates and outputs the original signal from a post office code standard advisory group (POCSAG). The decoder 30 restores the original data by filtering the detonation code, and performs battery saving by error detection and demodulation of a synchronization signal. The first memory 50 includes a ROM for storing a predetermined operating program, a RAM for temporarily storing data generated during the operation, and an electrically programmable EEPROM. The first controller 40 controls the overall operation, and when the decoded signal is input, configures and outputs data (hereinafter, referred to as a "data format") in a predetermined format. The intermediate frequency generating unit 60 is controlled by the first control unit 40, receives a predetermined data format from the control unit 10, modulates the intermediate frequency into an intermediate frequency, and transmits it through the second antenna ANT2.

3 is a diagram illustrating a configuration of data according to an exemplary embodiment of the present invention, and the configuration of the data format will be described with reference to the diagram.

Figure 3a shows a synch code (Synch Code) consisting of 16 bits (bit) is a bit string for synchronization. In FIG. 3, b represents call data, which is one codeword, using Hamming (15, 11) codes, and additionally, even parity bits are added. In FIG. 3B, the option R is composed of 2 bits, and is a bit for dividing into an alarm type or an address type, that is, personal information or information service. The code type (C) is composed of 3 bits and is a bit for indicating the type of codeword. The address ADD is composed of 6 bits, and the cap code is divided into 64 and the quotient is converted into a binary number. The remainder is battery saving according to the remaining values when the battery is saved.

One data stream repeats the synchronization code and the codeword configured as described above for a predetermined time, and typically, the predetermined time is 4 seconds. This is a method for reducing current consumption by periodically turning on / off the receiving end on the auxiliary calling device, and performs a better power saving function than using a preamble signal used in a wireless call receiver.

4 is a block diagram of an auxiliary call device according to an embodiment of the present invention.

Hereinafter, referring to FIG. 4, the intermediate frequency receiver (hereinafter referred to as an “IF receiver”) 210 receives an intermediate frequency transmitted from the radio call receiver 100 through a third antenna ANT3 and weakly. The amplified intermediate frequency signal is amplified, filtered, and demodulated into the original data stream. The alarm unit 230 generates alarm sound and vibration under the control of the microcomputer 220. The microcomputer 220 may be implemented as a one chip microprocessor such as Hitachi HD404344. The microcomputer 220 receives the data stream, detects a received electric field strength by an analog / digital converter (ADC) included therein, and checks whether the received electric field intensity is greater than a preset reference voltage. Judge. When the received field strength detected as a result of the determination is greater than the preset reference voltage, the microcomputer 220 turns on the power saving signal for the 48-bit time. The microcomputer 220 then stores the data format detected for the 48-bit time in the internal memory, and detects the address from the data format to determine whether it is its own address. In addition, if the detected address is a self address, the microcomputer 220 detects option R from a data format and controls the alarm unit 230 to generate a corresponding alarm.

The microcomputer 220 includes a second decoder 221, a second memory 225, and a second controller 223. The second decoder 221 receives the data format output from the IF receiver 210 to detect a sync code, detect a received electric field strength, and save a battery. The second memory 225 includes a ROM storing a predetermined program and a RAM temporarily storing data generated during the program. The second memory 224 stores the initial On cycle time of the power saving signal and stores the detected call data. The second controller 223 stores, reads, and erases data.

5 is a view showing a battery saving operation of the auxiliary call device according to an embodiment of the present invention.

Hereinafter, referring to FIG. 5, the battery saving operation of the auxiliary caller 200 will be described. The microcomputer 220 periodically generates a power saving signal to check whether a data format is received. As shown in FIG. 5, the power saving signal turns on the receiving unit for a period of about 4 bits in a 2 second period. The 4-bit length time can be within 4 bits or more as long as the minimum length to measure the received electric field strength. In this case, since the data stream has a time of 4 seconds, the data stream transmitted from the pager receiver 100 at once can be received and detected twice, thereby compensating for one mistake.

The length of the data stream transmitted from the radio call receiver 100 and the power saving signal of the auxiliary caller should be half the length or cycle so as to allow two detections. In addition, since the length of the period is represented as a delay of a time when the signal of the wireless call receiver 100 is transmitted to the auxiliary caller 200, the period cannot be increased indefinitely to reduce power consumption. Therefore, these two factors can be treated as an option to specify whether the delay time is low and the current consumption is high, or the delay time is long and the current consumption is reduced. The above setting can be set by the data of the option R described with reference to FIG. 3. When the wireless call receiver 100 sets an option according to the user's setting, the wireless call receiver 100 may increase or decrease the number of repetitions of the codeword and call data (time increase or decrease of one data stream), and the auxiliary caller 200 may detect The option R may be detected from the data format of the data stream, and the cycle time of the power saving signal may be increased or decreased based on the detected option R value. For example, when the time of the data stream is set from 4 seconds to 8 seconds, the generation cycle time of the power saving signal may be set from 2 seconds to 4 seconds. In this way, the auxiliary pager can save more power.

The decoder 221 of the microcomputer 220 measures the received electric field strength under the control of the second controller 223 without detecting data when the receiver is turned on. Once the strength of the electric field, that is, the received electric field strength (RSSI) is greater than or equal to the preset reference voltage in the second memory 225, the decoder 221 determines that there is a signal from the wireless call receiver 100, and thus the decoder 221 further includes three codewords. The IF receiver 210 is turned on continuously for a corresponding 48 bit period. In this case, all received data is filtered and stored in the second memory 225 under the control of the second controller 223. A sync code is detected through comparison among the stored 48-bit data. When the sync code is detected, the decoder 221 decodes call data A before or after the detected sync code. This means that since the received data is three codewords, up to three complete codewords out of 48 bits, as in a of FIG. 5, namely [synchronization code + call data + sync code] or [call data + sync code + call data] ] Can be detected. However, typically, two complete codewords, namely, [synchronization code + call data] as shown in b of FIG. 5, and a [call data + sync code] code as shown in c of FIG. 5 may be received.

As described above, in the present invention, the user has a small calling device and transmits a message to the wireless call receiver wirelessly, so that a predetermined distance from the wireless call receiver drops, and the user can easily recognize whether the message is received. There is an advantage that can be mounted on.

Another advantage of the present invention is that by configuring the call data when receiving a message of the radio call receiver, by including an address in the call data, there is an advantage that the alarm sound can be distinguished from the data received from other radio call receivers.

Another advantage of the present invention is that it is possible to set options in the call data can have a variety of alarm modes, there is an advantage that can also adjust the battery saving time.

Claims (10)

In a wireless call receiver having an auxiliary call device, A first control unit for generating and outputting a data stream comprising call data including synchronization information and information for distinguishing alarm type and magnetic data when receiving a call message, and modulating the data stream to an intermediate frequency and outputting the data stream. And a radio call receiver comprising an intermediate frequency generating unit and a second antenna for transmitting the intermediate frequency to the air; A third antenna for receiving the intermediate frequency signal transmitted from the radio call receiver, and receiving power for a first bit time at a predetermined periodic time interval to amplify and filter the weak intermediate frequency received through the third antenna And an intermediate frequency receiver for demodulating and outputting the original data stream, an alarm unit for generating an alarm under predetermined control, and a data stream input for the first bit time, and synchronized by a synchronization code of the data stream. And a microcomputer for generating an alarm by controlling the alarm unit according to the call data included in the data stream. The method of claim 1, wherein the microcomputer Storing a generation cycle time value of the constant power saving signal, a first constant bit time value, a second constant bit time value and an own address, storing an option value, and storing a data stream received from the radio call receiver; 2 memory, Generates a power saving signal for turning on the intermediate frequency receiver for a predetermined period of time and a first predetermined bit time under a predetermined control, receives the data stream by the power saving signal to detect a received electric field strength, and detects the detection. When the received electric field strength is greater than the reference voltage set in the second memory, the intermediate frequency receiver is turned on for the second predetermined bit time after the first predetermined bit time, and the decoding means for decoding the detected data stream for the second predetermined bit time. 2 decoders, Control the second decoder, receive a data stream input for a second predetermined bit time, and store the received data stream in a second memory; and if the magnetic address information of the call data of the data stream is the same as the magnetic address of the second memory, And a second control unit for generating an alarm by controlling the alarm unit according to the call data. 3. The auxiliary caller of claim 2, wherein the predetermined power saving signal generation cycle time is 2 seconds. 3. The auxiliary caller of claim 2, wherein the first predetermined bit time is 4 bits. 3. The auxiliary caller of claim 2, wherein the second predetermined bit time is 48 bits. In the data configuration method of the auxiliary call device in the wireless call receiver, A first step of generating a sync code when a message is received by the radio call receiver; A second step of generating call data after generating the sync code; And a third step of constructing a data stream by sequentially repeating the sync code and call data for a predetermined time. 7. The method of claim 6, wherein the sync code and call data are composed of 16 bits. The method of claim 6, wherein the predetermined time is 4 seconds. The method of claim 6, wherein the call data, 2 bits of option data for setting battery saving option and alarm mode option, The codeword type is 3 bits of code type data, 6 bits of address data for judging whether it is magnetic data, A 4-bit parity bit for error checking of the call data; Characterized in that it consists of 1-bit even parity bits. 10. The method of claim 9, wherein the address data is data obtained by converting a quotient obtained by dividing the cap code of the radio call receiver by 64 into a binary number.

Images