KR19990007049U - Alarm Drive Device for Wireless Call Receiver - Google Patents

Abstract

end. TECHNICAL FIELD OF THE INVENTION

Wireless page receiver

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

The present invention provides a device for turning on / off a buzzer, a motor, an LED and a lamp for an alarm in a wireless call receiver.

All. The point of solution of design

In the wireless call receiver, a control signal for driving a buzzer or a motor or an LED or a lamp for an alarm is received from a control unit, and the buzzer or the motor or the LED or the lamp is turned on / off according to a control signal applied from the control unit. It is provided with a switching unit.

la. Important uses of the devise

In the wireless call receiver, the driving circuit design of the alarm unit for the alarm alert can be facilitated and downsized.

Description

Alarm Drive Device for Wireless Call Receiver

The present invention relates to a wireless call receiver, and more particularly, to an alarm driving device in a wireless call receiver.

In general, a wireless paging system stores necessary information in a POCSAG code, modulates it to a corresponding frequency, and sends the same to a wireless paging receiver. The radio call receiver receives the corresponding frequency signal if it matches the channel frequency, decodes the bread code at the received frequency, and if the address data of the bread code matches the address data of the radio call receiver, the bread code. Read information data from.

1 is a block diagram of a wireless call receiver to which the present invention is applied, and includes a control unit 100, a memory 110, an RF unit 120, a decoder 130, a frequency synthesizer 140, a display unit 150, an alarm unit 160, and a key input unit 170.

Referring to Figure 1 describes the overall operation of the radio call receiver to which the present invention is applied. The key input unit 170 is composed of keys for generating various control signals of the wireless call receiver. The keys may include, for example, a power key for turning on / off a radio call receiver, a mode key for implementing various operations and functions, and a lead key for displaying a received message. In particular, the key input unit 18 generates key data for mode change by simultaneously pressing the mode key and the lead key. After the mode change is set, the lead key and the mode key perform a function of selecting contents to be changed and inputting and storing change data. The RF unit 120 is assigned a channel by the frequency synthesizer 140, amplifies the weak RF signal of the specified channel received through the antenna, and converts the amplified signal to the original signal band and demodulates the demodulated signal. Waveform is output by digital data. The decoder 130 decodes and outputs the digitally coded data output from the RF unit 120. That is, the received coded data (usually BCH coded data) is decoded into original data, and the preamble data, the word sink and its own frame data are detected and output from the form of the bread code. The memory 110 is a memory that stores information of the radio call receiver and may use an EEPROM. The information stored in the memory 110 stores a cap code, which is address data for selecting and receiving data, and a channel frequency for receiving a radio call service. In addition, the memory 110 stores data for performing an optional function. The optional function includes a clock function and an alarm function. In particular, the memory 110 stores display data which is a guide message according to a mode change. The controller 100 analyzes the information in the memory 110 to control the call service function of the wireless call receiver. First, upon receiving the power key on signal from the key input unit 170, the controller 100 performs a channel scan function for initial driving. That is, the controller 100 sequentially selects the reference channel frequencies accessed from the memory 100, specifies the channel by outputting the selected reference channel frequencies at regular intervals, and checks the reception of data from the designated channel. In this case, when data is received, the received frame data is analyzed, and when the address data of the cap code and the address data of the received bread code are identical, the message data is stored in the memory 110. In addition, the controller 100 receives key data from the key input unit 170 and performs a corresponding function. In particular, the controller 100 receives the mode change key data from the key input unit 170, reads the display data from the memory 100, and displays the displayed data. The frequency synthesizer 140 designates a channel of the RF unit 120 according to the channel data output from the controller 100. The channel data may be reference channel frequencies for designating a reference channel frequency in a regional area and service channel frequencies for a radio calling service of a wide area network subscriber in the case of a wide area wireless call receiver. The display unit 150 may be implemented as an LCD and displays various situations and received messages generated during a wireless call service under the control of the control unit 100. In particular, the display unit 150 displays the display data for mode change under the control of the controller 100. The alarm unit 160 generates an alarm signal when a message is received under the control of the controller 100. The alarm unit 160 includes a buzzer, which is a means of generating an alarm sound for notifying a wireless call or an alarm, a moter, a lamp, an LED, or the like, which is a vibrator that generates a vibration signal.

FIG. 2 is a conventional circuit diagram of the alarm unit 160 of the wireless call receiver shown in FIG. 1, and receives a control signal from the controller 100 to turn on / off transistors Q1 to Q4 to drive the buzzer 210, the motor 220, the lamp 230, and the LED 240, respectively. .

2A is a circuit diagram of driving the buzzer in the alarm unit 160 of the conventional wireless call receiver. The buzzer 210 operates as the transistor Q1 receives a control signal applied from the control unit 100.

2B is a circuit diagram of driving the motor in the alarm unit 160 of the conventional wireless call receiver. The motor 220 operates as the transistor Q2 receiving the control signal applied from the controller 100 is turned on.

2C is a circuit diagram of driving the lamp in the alarm unit 160 of the conventional wireless call receiver. The lamp 230 operates as the transistor Q3 receiving the control signal applied from the controller 100 is turned on.

FIG. 2D is a circuit diagram of driving the LED in the alarm unit 160 of the conventional wireless call receiver. The LED 240 operates as the transistor Q4 receiving the control signal applied from the controller 100 is turned on.

2A to 2D, since the four transistors Q1 to Q4 must be controlled to drive the alarm unit 160 of the conventional wireless call receiver, the circuit is complicated.

Accordingly, an object of the present invention is to provide an apparatus for driving an alarm unit of a wireless call receiver as one integrated circuit.

The present invention for achieving the above object receives a control signal for driving an alarm or a buzzer or a motor or an LED or a lamp from the control unit in the wireless call receiver, the buzzer or the motor or according to the control signal applied from the control unit And a switching unit to turn on / off the LED or the lamp.

1 is a block diagram of a wireless call receiver to which the present invention is applied.

2 is a conventional driving circuit diagram of an alarm unit in the wireless call receiver shown in FIG.

3 is a driving circuit diagram of an alarm unit in a wireless call receiver according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a view showing the configuration of an apparatus for driving an alarm unit in a wireless call receiver according to an embodiment of the present invention, the buzzer 210, the motor 220, the lamp 230 and the LED 240 in the switching unit 310 receives a control signal from the control unit 100 Let's do it.

Referring to Figures 1 and 3 will be described the operation of the device for driving the alarm unit in the wireless call receiver according to an embodiment of the present invention. When the control unit 100 receives the predetermined call message as a result of receiving and analyzing the data received through the RF unit 120 from the decoder 130, the control unit 100 outputs the received call message to the display unit 150, and controls the alarm unit 160 to receive the call message. Generate a corresponding alarm. The switching unit 310 receives a control signal corresponding to the reception of the call message from the control unit 100 and switches the operation of the buzzer 210, the motor 220, the lamp 230, and the LED240. That is, the controller 100 controls the switching unit 310 according to the alarm transmission mode setting input through the key input unit 170 to turn on / off the buzzer 210 or the motor 220 or the lamp 230 or the LED240.

As described above, the present invention facilitates the design of a driving circuit of an alarm unit for an alarm alert in a wireless call receiver and can be miniaturized.

Claims (3)

In the alarm driving device in a wireless call receiver, A switching unit configured to receive a control signal for driving the alarm unit and to drive the alarm unit according to the control signal applied; And an alarm unit configured to perform an operation of notifying an alarm according to the control of the switching unit. The method of claim 1, The alarm unit, the alarm drive device of the wireless call receiver, characterized in that implemented by a buzzer, a motor, an LED, a lamp. The method of claim 2, And the switching unit performs a switching operation of driving the buzzer, the motor, the LED, or the lamp according to a control signal applied from the control unit.