KR0118460B1 - Watch having a pager function in a vehicle - Google Patents

Abstract

Disclosed is a pager and particularly to the method and the apparatus for giving both a clock & a pager function for car in receiving call sign during driving by giving pager function to a digital clock mounted in car. Prior digital clock mounted in the car is located in position which a driver can easily see, but can't fulfil other functions except for only time display. Such prior pager and digital clock can own many functions but can be used separately. Thereby, this invention is characterized in adding the pager function.

Description

Car clock with phaser function

1 is a block diagram of a typical pager.

2 is a block diagram of the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pager for wireless communication, and in particular, by providing a pager function to a digital watch mounted on a vehicle, a vehicle digital watch for preventing a driver from directly pulling out and checking a pager when a wireless call is received while driving. The present invention relates to a device to which a radio call function is given.

In general, the pager is carried by the user and is used. When the user receives a call while driving, the portable pager has to take out the pager in hand and check the number. When placed on the dashboard (dash-bord) it was very inconvenient to move or fall due to the flow and vibration of the vehicle while driving.

In addition, as the traffic volume increases, the driver spends a lot of time in the vehicle. In contrast, the necessity of mobile communication is increased due to the increase in the efficiency of time and the importance of communication. Therefore, many people are equipped with a car phone or using a portable pager, but a mobile phone or a car phone is expensive to purchase and use, and the portable pager has the problems described above.

On the other hand, the vehicle digital clock mounted on the vehicle is located in a place where the driver can see easily, but does not perform other functions but only performs the function of displaying time.

A typical pager can be illustrated as shown in FIG. 1, which includes an antenna (1-1) for transmitting and receiving a pager message and a radio frequency (RF) component of a signal received from the antenna (1-1). A high frequency amplifier 1-2 for amplifying; A mixer which mixes the high frequency signal amplified by the high frequency amplifier 1-2 with the oscillation signal output from the oscillator 1-4 and converts it into an intermediate frequency (IF) signal. An intermediate frequency detector (1-5) for detecting and amplifying the intermediate frequency signal converted by the < RTI ID = 0.0 > A decoder 1-6 for decoding the intermediate frequency signal detected by the intermediate frequency detector 1-5 into a signal which can be processed in the system; A microcontroller (1-7) for controlling the whole system processing operation by the signal decoded by the decoder (1-6); A liquid crystal display (1-8) for controlling the microcontroller (1-7) to inform the user of the stored message; A battery (1-9) for supplying power to the microcontroller; A selection switch 1-10 for selecting a function such as reading or erasing a memory according to a user's need; The memory 1-11 stores an identifier (ID) for distinguishing a magnetic signal among the received messages under the control of the microcontroller 1-7.

The general pager configured as described above, first, the message sent from the pager transmitter is received by the antenna 1-1, the high frequency component is amplified by the high frequency amplifier 1-2, and then the oscillator in the mixer-3. It is mixed with the high frequency oscillation signal of (1-4) and converted into an intermediate frequency signal.

The intermediate frequency signal converted and output from the mixer 1-3 is detected and amplified by the intermediate frequency detector 1-5, and then decoded by the decoder 1-6 by the microcontroller 1-7. It is decoded into a signal that can be decoded.

This decoded signal is stored inside the microcontroller 1-7, and when the user operates the selector switch 1-10, the message stored in the microcontroller 1-7 is sent to the liquid crystal display 1-8. Inform the user through

Many of these conventional portable pagers and vehicle digital clocks can be shared but have been used independently as separate products.

In view of the above problems, the present invention is characterized by adding a pager function, that is, a radio call function, to a vehicle digital watch. In other words, the car digital clock can be wirelessly connected by connecting a wireless receiving input device and a wireless receiving interface circuit to share a liquid crystal display and a power supply, which are common parts of a pager and a vehicle digital clock, and to receive a radio call signal to a microcomputer. It is to improve the practicality and safety by integrating the functions to perform the calling function.

Referring to the drawings in detail with reference to the configuration block diagram of the present invention as shown in Figure 2, the regulator 10 for supplying a constant power to the central processing control unit 2 by adjusting the power drawn from the vehicle. And a switch interface circuit unit 2 for transmitting various switch inputs to the control unit, a radio call interface unit 30 inputting a radio call signal from the receiver 32, and a radio call receiver 32 at the time of input / output of the radio call signal. An input unit (1) comprising a transformer (31) and a radio signal receiver (32) for supplying a voltage suitable for the power supply and converting it into a voltage suitable for the central processing controller (2); A central processing controller 2 programmed to control the radio call signal input from the input unit 1 to the liquid crystal display 41; A display driving interface circuit 40 for outputting the signal controlled by the central processing controller 2 to the liquid crystal display 41 and an output unit 3 including the liquid crystal display 41.

The power input to the regulator 10 is (+ 12v) applied from the vehicle, and this power is regulated by the regulator 10 and supplied to the central processing control unit 2, and the central processing control unit 2 is supplied. The power is shared and the input / output units 1 and 3 are controlled by this power source. The wireless call input device 32 uses (+ 1.5v) to adjust the difference and to supply power to the wireless call device 32. The transformer 31 is connected between the wireless paging device 32 and the wireless receiving interface circuit 30 to supply the vehicle battery with the voltage applied to the wireless paging device 32 and the voltage applied to the central processing controller 2. Use to share.

Therefore, the power supply (+ 12v) is always supplied to the central processing controller 2 through the regulator 10, the central processing controller 2 applies this voltage to the wireless receiving interface circuit 30 and the voltage applied thereto is Power (+ 1.5v) is applied to the radio pager 32 through the transformer 31. At this time, the wireless call device 32 is in a state capable of receiving a wireless call, and when a wireless call is received, adjusts this signal back to (+ 12v) through the transformer 31 and delivers it to the wireless receiving interface circuit 30. The signal transmitted thereto is controlled by the central processing controller 2 to be displayed on the liquid crystal display 41 through the display driving interface circuit 40.

The operation sequence of the present invention configured as described above allows only the time to be displayed on the liquid crystal display when the initial power is on; At this time, if the wireless call is input, and stores the input radio call signal to the central control processing unit; Generate a beep and output a message to the liquid crystal display; When the user reads an input signal by operating a switch, only time is output to the liquid crystal display; If not read, i.e., without a switch, the liquid crystal display outputs time and messages simultaneously so that the user can recognize that there is a signal input; Reading the message in this state allows the LCD to show only the time.

As described above, the present invention adds a pager function to the vehicle digital watch so that the driver can easily check the call number when the driver receives a wireless call while driving, and there is a call signal on the display when the driver is in a wireless call. By having a function that informs, it is very useful because it can give a safer operation and convenience.

Claims (1)

A digital watch mounted on a vehicle, comprising: a regulator (10) for supplying power (+ 12v) drawn from the vehicle; A switch interface circuit unit 20 for transmitting an input of a user selection switch; A wireless calling device 32 for receiving the transmitted signal; A transformer (31) for converting the power (+ 12v) output from the regulator (10) into a rated voltage (+ 1.5v) required for the radio call device (32); A wireless receiving interface circuit unit 30 for interfacing the call signal received by the wireless calling device 32; The control signal is output to the liquid crystal display 41 of the output unit 3 so that data such as year, month, day, time, etc. are displayed on the liquid crystal display 41, and is also applied by the wireless receiving interface circuit unit 30. And a central processing control unit 2 for storing and controlling the radio call signal and outputting a control signal to display the radio call signal on the liquid crystal display 41 of the output unit 3. One car clock.