KR19990058111A - Auxiliary calling device for radio call receiver and data composition method - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs

The present invention relates to an auxiliary calling device for a wireless call receiver and a method of configuring the data.

I. The technical problem that the invention is trying to solve

The present invention provides an auxiliary calling apparatus capable of recognizing that a message has been received by the wireless call receiver at a predetermined distance from a wireless call receiver and a data configuration method transmitted to the auxiliary calling apparatus.

All. Summary of Solution of the Invention

In the wireless call receiver, a first control unit for controlling the overall operation, generating and outputting a data stream, under the control of the first control unit, receiving the data stream, generating an intermediate frequency, and inputting the data stream. An intermediate frequency generator for receiving and modulating the intermediate frequency to output the second antenna for transmitting the intermediate frequency to the air, a third antenna for receiving the intermediate frequency transmitted to the air through the second antenna, and a predetermined periodic time interval An intermediate frequency receiver configured to receive power for a first bit time and to amplify, filter, and demodulate a weak intermediate frequency received through the third antenna during the first bit time to output an original data stream; An alarm unit for generating an alarm under predetermined control and a data stream input during the first bit time Oh it characterized by constituted by any microcontroller that controls the alarm unit generates an alarm.

la. Important uses of the invention

It is used for notification of message reception in radio call receiver.

Description

Auxiliary calling device for radio call receiver and data composition method

The present invention relates to a message receiving notification device and method of a wireless call receiver, and more particularly, to a secondary call device and a wireless call receiver to a secondary call device which can know whether a message is received at a predetermined distance away from the wireless call receiver. It relates to a method of organizing the data to be transmitted.

In general, a wireless call receiver is widely used, and the function of the wireless call receiver is added to satisfy a user's desire. 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, since 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 a 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. The present invention provides a small auxiliary calling apparatus which can be attached to the auxiliary calling apparatus, and a method for configuring data transmitted from the wireless call receiver to the auxiliary calling apparatus.

In order to achieve the object of the present invention, the present invention provides a radio call receiver, the first control unit for controlling the overall operation, and generates and outputs a data stream, under the control of the first control unit, and receives the data stream An intermediate frequency generator for generating an intermediate frequency, receiving the data stream, modulating the intermediate data into an intermediate frequency, a second antenna for transmitting the intermediate frequency to the air, and an intermediate frequency transmitted to the air through the second antenna Receiving a third antenna and a power source for a first bit time at a predetermined periodic time interval, and amplifying, filtering and demodulating a weak intermediate frequency received through the third antenna during the first bit time. An intermediate frequency receiver for outputting a data stream of the first signal; an alarm for generating an alarm under predetermined control; Characterized in that the microcomputer to generate an alarm by controlling the alarm unit receives the input data stream for the bit time.

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 an auxiliary caller of a wireless call receiver 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 decoded 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.

3 shows a sync code, which is made up of 16 bits and is a bit string for synchronizing. In FIG. 3, b represents call data, which is a lower 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 caller side, 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 intensity 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 perform battery saving. 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, it is possible to specify whether these two elements are processed as an option to reduce the delay time and increase the current consumption, or to increase the delay time and reduce the current consumption. 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 (increase or decrease the time of one data stream), and the auxiliary caller 200 may The option R may be detected from the data format of the detected 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, if 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 setting, the call aid 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 201 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 (11)

In the wireless call receiver, A first controller which controls the overall operation and generates and outputs a data stream; An intermediate frequency generating unit under control of the first control unit, generating an intermediate frequency by receiving the data stream, and modulating and outputting the data stream to an intermediate frequency; A second antenna for transmitting the intermediate frequency to the air; A third antenna for receiving an intermediate frequency transmitted to the air through the second antenna; Intermediate that receives power for a first bit time at regular interval time intervals, and amplifies, filters, and demodulates a weak intermediate frequency received through the third antenna during the first bit time to output the original data stream. A frequency receiver, An alarm unit for generating an alarm under predetermined control; And a microcomputer that receives an input data stream during the first bit time and controls the alarm unit to generate an alarm. The method of claim 1, wherein the microcomputer A second storing a generation cycle time value of the constant power saving signal, a first constant bit time value, a second constant bit time value, an own address, storing an option value, and storing data received from the radio call receiver; With 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. Detects the received electric field strength, and if the detected electric field strength is greater than the reference voltage set in the second memory, turns on the intermediate frequency receiver for a second predetermined bit time after the first predetermined bit time and turns on the second predetermined bit. A second decoder for decoding the detected data for a time; Controlling the second decoder, receiving data input for a second predetermined bit time, and storing the received data in a second memory, detecting a magnetic address from the data, and controlling an alarm unit to generate an alarm if the magnetic address is the same; A secondary caller for a wireless call receiver, characterized in that it consists of two control units. 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. 3. The auxiliary caller of claim 2, wherein the data stream comprises a sync code and call data. 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. 8. The method of claim 7, wherein the sync code and call data are composed of 16 bits. 8. The method of claim 7, wherein the predetermined time is 4 seconds. The method of claim 7, 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. The method as claimed in claim 10, wherein the address data is data obtained by converting a quotient obtained by dividing a cap code of the radio call receiver by 64 into a binary number.