KR200152806Y1 - Circuit for time setting in vcr - Google Patents

Abstract

The present invention proposes automatic AM / PM setting circuit of VSI timer that prevents recording failure from happening when scheduled recording is performed by changing AM and PM when V timer is adjusted.

The timer AM / PM automatic setting circuit according to the present invention is characterized by a timer 11 for generating time information upon receiving a clock input from the clock generator 13, a tuner 18 for tuning a television broadcast channel, and The video processing unit 16 which detects the synchronization signal of the channel tuned by the tuner, and whether the synchronization signal is detected by the video processing unit on the basis of 12:30 unless it is the current Saturday and Sunday. It is determined whether the AM and PM setting value of VSI is abnormal, and whether the synchronization signal is detected in the video processing unit based on 3 o'clock on Saturday and Sunday. The processor 12 for automatically setting this by changing the AM / PM flag of the timer in case of a setting error by determining whether there is an error, The AM / PM automatic setting circuit includes an OSD processing unit 17 for outputting an error message to the monitor 19 in an on-screen manner when there is an error in the AM and PM setting of the VSI timer determined by the processor.

Description

AM / PM automatic setting circuit of VSI timer

The present invention relates to the automatic setting circuit of AM / PM of VSI timer, which prevents recording failure when the scheduled recording is executed in case of changing the AM and PM when the timer is adjusted. will be.

In general, when a user wants to watch a television broadcast by operating a key input unit of VSI, the microprocessor outputs a broadcast channel control signal for tuning a user-selected channel among RF signals received through a television antenna.

That is, VSI's system control microprocessor controls the phase lock loop in accordance with a user key input to change the tuning voltage for tuning on the tuner side.

In addition, when the user wants to watch the videotape by operating the key input unit, the microprocessor receives the control signal, controls the deck, the servo device, and the RF converter, switches the current mode to the video mode, plays the videotape, and picks up the signal. Is processed by the video processor to output an image through an image output apparatus such as a monitor or a television.

On the other hand, when the user inputs on time and off time using a key input unit, selects a channel number, or inputs a specially defined reserved recording code, VSI's system control microprocessor controls the OSD processing unit, an on-screen program IC. Thus, the contents of the reserved TV program are displayed on the screen of the monitor or the television, and the reserved contents are stored in the memory.

In this state, when the scheduled recording time of the broadcast program is completed, VSI will perform the scheduled recording mode by the system control micom.

Recently, KBPS has been applied to VSI to simplify reservation recording.

KBPS generally refers to the list of broadcast programs displayed on the television screen and defines countermeasures for various matters that may occur when broadcasting stations transmit such signals as priorities, delays, cancellations, or changes. It is a system that enables the user to easily and quickly make reservation input and execute the reservation recording only exactly the actual part of the broadcasting program except the advertisement.

The KBPS reservation recording method displays a week or four weeks of broadcast programs on a television screen according to its signal regulations, and when the user wants to see them and record a desired program event, the screen cursor is moved to a desired program location. Matching causes the corresponding program event information to be stored in a nonvolatile memory device in the KBPS system.

The reserved setting data thus stored receives current time information from a timer that counts the current time, and performs reservation recording of a predetermined broadcast program.

In particular, such a reservation recording of the KBPS system is possible to execute accurate reservation recording even if a change occurs in the program start time due to broadcasting station circumstances after the reservation recording program setting registration.

In addition, since the current time data is transmitted, automatic time setting and correction are possible, and the program contents can be recorded and executed in advance in case of a power failure or when the broadcasting time is changed. Will be.

However, in order to execute the scheduled recording by using any scheduled recording method, if AM and PM are set in the opposite way when the VSI timer is set, the correct scheduled recording function cannot be performed.

The AM / PM turnover, which causes such scheduled recording failures, is frequently caused by VSI's own timer setting error or by overlooking the setting phase. There is no automatic judgment and setting device.

An object of the present invention relates to an automatic setting circuit of AM / PM of VSI timer for preventing the scheduled recording execution of a broadcast program from being executed normally when AM and PM are set to register in reverse. will be.

Features of the present invention circuit include a timer for generating time information upon receiving a clock input from a clock generator, a tuner for tuning a television broadcast channel, a video processor for detecting a synchronization signal of a channel tuned in the tuner, and a timer. If the synchronization signal is detected by the video processing unit on the basis of 12:30, if not the current Saturday and Sunday, it judges whether there is an abnormality of AM and PM setting value of VSIal, If it is Sunday, whether the synchronization signal is detected by the video processor on the basis of 3 o'clock, it is determined whether the AM or PM setting value of VSI is abnormal, and when the setting error is changed, the AM / PM flag of the timer is changed. Automatic setting processor, AM and AM of VSI timer determined by the processor It includes an OSD processing unit for outputting an error message to the monitor on-screen when there is an error in the afternoon setting.

1 is a circuit diagram of the present invention.

2 is a flowchart illustrating an operation process of the present invention.

* Description of the symbols for the main parts of the drawings *

10: Micom 11: Timer

12 processor 13 clock generator

14: memory 15: key input

16: video processing unit 17: OSD processing unit

18: Tuner 19: Monitor

Referring to the present invention based on the accompanying drawings as follows.

1 is a circuit block diagram of the present invention.

As referred to herein, the clock signal generated by the clock generator 13 is connected to be applied to the timer 11 in the microcomputer 10.

Time generation information of the timer 11 that receives the clock from the clock generator and generates time information is connected to the processor 12 having the memory 14 for data storage.

In addition, the processor 12 in the microcomputer is connected so that a key input signal related to time setting from the key input unit 15 is applied.

On the other hand, the tuner 18 tunes a specific television broadcast channel from the RF signal received through the antenna according to the tuning channel selection voltage from the processor 12 through the PLL (not shown). The broadcast signal is connected to the video processor 16 for transmission.

The video processor 16 generates an image composite signal, transmits the image signal to the monitor 19 side, and determines whether there is a synchronization signal in the broadcast channel tuned by the tuner, and provides the result to the processor 12 side. Connect it.

Under the control of the processor 12, the output of the OSD processing unit 17 is output to the video processing unit so that the text information generated by the OSD processing unit 17 is displayed on the composite video signal as a VSI message through an image output device such as a monitor. (16) to be applied.

Referring to the operation of the present invention configured as described above are as follows.

First, the clock signal generated by the clock generator 13 is applied to the timer 11 in the microcomputer 10 as a source of timer time information.

The time information generated by the timer 11 is applied to the processor 12 having the memory 14 for storing data.

In addition, a key input signal related to the user's time setting, execution of various functions, or the like is applied from the key input unit 15 to the processor 12 in the microcomputer.

When a tuning channel tuning voltage from the processor 12 via the phase lock loop circuit, not shown, is applied to the tuner 18, the tuner selects a particular television broadcasting channel from the RF signal received through the antenna. Tune in.

The broadcast signal of the channel tuned by the tuner 18 is transmitted as an image signal to the monitor 19 via the video processor 16 so that the television broadcast program can be viewed.

In addition, the video processor 16 determines whether there is a synchronization signal in the broadcast channel tuned by the tuner and provides the result to the processor 12.

On the other hand, when the reserved recording program is set in VSI using the key input unit 15, the microcomputer 10 stores the current recording information received from the internal timer 11 after storing the reserved recording information in the memory 14. The reservation recording is executed by comparing with the reservation time information.

At this time, the processor 12 in the microcomputer performs the execution process as shown in FIG. 2 to determine whether the timer itself is set correctly.

This will be described in detail as follows.

When the output of the tuning value of the designated channel of the tuner 18, which is automatically set at the time of the reserved recording setting, is applied to the video processor 16, the video processor 16 has a synchronization signal for the broadcast signal of the corresponding channel. The first step S1 of tuning the current set channel is performed to determine the result and provide the result to the processor 12.

On the basis of this, the processor determines whether there is an abnormal setting of the morning and the afternoon of the timer. Prior to this, the processor 12 receives the current date information from the timer 11 and determines whether the current is Saturday or Sunday. Step 2 is executed.

In the second step, if the current day of the week is not Saturday or Sunday, an eighth step S8 of determining whether the current time is 12:30 is performed.

Here, the reason for the 12:30 time is a time value determined to recognize the TV broadcast at this time on a normal weekday, and the time value can be changed as necessary.

If the result of the eighth step is 12:30 or later, the ninth step S9 of determining whether there is a synchronization signal input through the video processor 16 is executed.

If it is determined that the synchronization signal is present in the ninth step, a tenth step (S10) for determining whether it is the current morning is executed.

In addition, if it is determined that there is no synchronization signal in the ninth step, an eleventh step (S11) for determining whether it is the current morning is executed.

However, in the second step, if the current day of the week is Sunday or Saturday, the third step S3 of determining whether the current time is 3:00 is executed.

In this case, the reason for the 3 o'clock is that the 3 o'clock on Sunday and Saturday is usually the end of the broadcast period and the 3 o'clock is the condition under which the television broadcast is in progress. Based on this, the AM / PM value setting error of the BSI timer is recognized and automatically corrected.

As a result of the execution of the third step, if the current time does not reach the set value of three o'clock, the operation is terminated as it is, and if it is after three o'clock, the fourth step S4 of detecting the presence of a synchronization signal is executed.

If it is determined in step 4 that the synchronization signal is present, the fifth step (S5) for determining whether it is the current morning or not is completed. If it is not, it is determined as AM / PM setting error of the timer. A seventh step (S7), which is an error correction step of changing and registering a setting flag, is executed.

If it is determined in step 4 that there is no synchronization signal, a sixth step S6 of determining whether it is the current morning is performed, and if it is morning, it is terminated as it is. Execution and shutdown automatically handles AM / PM setting errors by the VSI timer.

On the other hand, in the morning and afternoon setting error of the VSI timer, the setting error message is generated as text information by the OSD processing unit 17 and is displayed on the composite video signal of the video processing unit 16, thereby allowing time to be displayed on the monitor 19. Setup error messages will be displayed on-screen.

As described above, the present invention having the automatic AM / PM setting function may cause the AM / PM time setting inversion in VSI to be changed due to a timer setting error of VSI by a general VSI user or a recognition member of the setting process. As it appears frequently, the unique effect of simply solving the problem of VSI reservation recording failure caused by this is shown.

Claims (1)

A timer 11 for generating time information upon receiving a clock input from the clock generator 13, a tuner 18 for tuning a television broadcast channel, and a video processing unit for detecting a synchronization signal of a channel tuned in the tuner ( 16) and whether the synchronization signal is detected in the video processing unit based on the broadcast end time of the weekday if the current day information is received from the timer and is not on Saturday and Sunday. If there is no broadcast in the morning on the Saturday and Sunday, and whether the synchronization signal is detected in the selected channel on the basis of the broadcast time in the afternoon, it is judged whether there is an abnormality of AM and PM set value of VSI. If the AM and PM settings are set, the processor that automatically corrects them by changing the AM / PM flags of the timer. 2) and an OSD processing unit 17 for outputting an error message to the monitor 19 in an on-screen manner when there is an error in AM and PM setting of the BSI timer determined by the processor. AM / PM automatic setting circuit of VSIAL.