KR0149515B1 - Reservation recorder - Google Patents

Abstract

In a reservation recording system using a comparison between a code for a scheduled recording that does not include time information contained in a video signal transmitted from a broadcasting station and a code input by a user, the program is broadcast for a predetermined time with a serial number assigned to the programs. After setting a reservation code that distinguishes programs and broadcast channels from each other, the user inputs a program code and a program to be reserved by the broadcast channel, and the program code and broadcast channel from the video signal transmitted from the broadcasting station. According to a system of the present invention having a signal detecting means for detecting and a microprocessor for reservation recording control according to a result of receiving and comparing information output from the input means and the signal detecting means, the system of the present invention includes a program code and a broadcast input by a user. Broadcasting time change or sports broadcast of program reserved only by channel As it provides the effect that a program is airing time is flexible, it can be precisely scheduled recording.

Description

Reservation recording method and device

1 is a block diagram of a reserved recording apparatus according to an embodiment of the present invention.

2 is a line of a video signal carrying program code.

3 is a signal timing diagram of the device of FIG.

4 is a flowchart showing a reservation recording method according to an embodiment of the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reservation recording method and apparatus thereof, and more particularly, to a method and apparatus for easily reservation recording a program desired by a viewer in a recording and playback apparatus.

There are two types of reservation recordings that are used nowadays: American G-code and European Video Program System (VPS). They all start recording based on time.

In the G code system, if a code number of 1 to 8 digits is input for convenience of use, recording is started at a scheduled time after being converted into time data corresponding to the code. Therefore, if the airing time is delayed or the program does not start on time, the system malfunctions. In addition, since the code is 1 to 8 digits, most of the codes are 7 to 8 digits.

In the VPS system used in Europe, when the user inputs the date, time and channel, the recording starts by comparing the recorded time data with the user's data when planning the program broadcast from the broadcasting station. You can record correctly, but you can use the existing scheduled recording method. It is very inconvenient to set all the time, channel, etc., there is a problem that can not record a program that has changed the time of more than one day.

An object of the present invention for solving the above problems is to give a program-specific code that is irrelevant to time data for each program and transmit it with the program at the broadcasting station, and the user inputs the unique code of the program to be reserved. It provides a reservation recording method for recording a desired program.

Another object of the present invention for solving the above problems is to provide a reservation recording apparatus for implementing the above method.

An object of the present invention as described above is a reservation recording method using a comparison between a code for reservation recording contained in a video signal transmitted from a broadcasting station and a code input by a user, wherein the serial number assigned to programs is used for a predetermined period. Setting a reservation code for distinguishing the broadcasted programs and broadcasting channels from each other, setting a reservation code for weak recording of the program, storing a reservation code for reservation recording of the program, and Detecting a program code and a broadcasting channel from the transmitted video signal at predetermined time intervals. Comparing with the reservation code, and performing reservation recording according to a result of the detection and comparison. By the method.

In addition, another object of the present invention is a reservation recording apparatus using a comparison between a code for reservation recording contained in a video signal transmitted from a broadcasting station and a code input by a user, wherein the serial number assigned to programs is a predetermined period. Means for inputting a reservation code for distinguishing programs and broadcast channels that are broadcast during the broadcast, signal detection means for detecting a program code and a broadcast channel from the video signal, and program code from the reservation code and a signal detection means. And a microprocessor for receiving and comparing broadcast channels, receiving and comparing a control signal for reservation recording according to the comparison result, and generating a control signal for reservation recording according to the comparison result, and inputting a control signal of the microprocessor. Receiving means for recording the program specified by the reservation code; It is achieved by the scheduled recording device according to Jing.

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

Since the actual number of programs broadcast on one channel of television per day is no more than 100, the number of programs for three months is at most 9,000. However, since the maximum number of programs that can be represented by four digits is 9,999, the four-digit decimal number can be used to assign a unique number to all programs that are broadcast on one channel for three months. In addition, by using a two-digit decimal number for distinguishing between channels together with a four-digit decimal number for distinguishing programs in the panel, as a key input such as a remote controller, programs that are broadcast on all channels can be distinguished for three months. The reason for using the two-digit decimal number for channel classification is that it is possible to distinguish the channel with only one digit in regions with less than 10 channels, such as Korea. to be.

1 is a block diagram of a reservation recording apparatus according to an exemplary embodiment of the present invention, and shows a device for recording a program by receiving a reservation code input by a user and a code transmitted from a broadcasting station.

The apparatus of FIG. 1 comprises a remote controller 20 for key input, a line detection circuit 22 for receiving a video signal and detecting a line containing a program code for reservation recording, and a signal of the line detection circuit 22. Phase synchronizer loop (PLL) having an amplifier 23 and clamp circuit 24 sequentially connected to the output stage, an oscillator 25 having an oscillation frequency of 2.5 MHz, and two signal input terminals P2 and P3. A microprocessor 21 having a circuit 26, a terminal P1 for receiving a code transmitted from a broadcasting station, an input terminal P4 of an oscillation frequency, and a terminal for receiving a key input signal, and a clamp circuit 24; A first switch SW1 selectively applying the output signal of the signal to one of the terminals P1 and P2, and a second selectively applying the output signal of the oscillator 25 to one of the terminals P3 and P4. In accordance with the control signal of the switch SW2 and the microprocessor 21, the driving unit 27 for performing the reserved recording operation is performed. It should. Then, the microprocessor 21 is connected to the switch (SW1, SW2) to apply a signal for controlling to accurately detect the transmitted program code by synchronizing the oscillation frequency of the oscillator 25 and the transmitted program code.

2 shows a line of a video signal carrying a program code, and shows a line 12H of a video signal transmitted from a broadcasting station.

FIG. 3 is a signal timing diagram of the apparatus of FIG. 1, using the segmentation shown in FIG.

In a typical video signal, there is a vertical blanking period from the initial 1H to 16H period. Since this section is not displayed on the screen, one of the 12Hs has a program code for identifying programs within three months. The program code transmitted from the broadcasting station is composed of a code for identifying a program for three months and a code corresponding to hexadecimal FFFF indicating the end of the program. Each code has a frequency component of 2.5 MHz as shown in FIG. 2 and is carried in a 12H section divided into five sections. In FIG. 2, the interval A has a time interval of 4.6 μsec. In addition, the interval C is an interval of 4.5 µsec, and the interval D on which code information is carried is maintained at an interval of 9.6 µsec, which may include 24 pulse signals.

When the user inputs a code and a channel code of a program to be reserved in the reserved recording mode through the remote controller 20, the microprocessor 21 compares the number of digits of the reserved code input in 5 or 6 decimal digits. . If there is only a 5-digit key input, add 0 to the end to make it the same state as the 6-digit key input, and then convert it to a 4-bit binary code for each digit and store it with the program code transmitted from the broadcasting station. Start the comparison.

When a video signal including the signal of FIG. 2 is transmitted from the broadcast pole and input to the line detection circuit 22 of the FIG. 1 apparatus, the line detection circuit 22 detects only the 12H portion of the input signal and the amplifier 23 ) The signal amplified by the amplifier 23 is output to the first switch SW1 after the voltage level is adjusted by the clamp signal 24.

The microprocessor 21 controls the first switch SW1 and the second switch SW2 to phase synchronize the S1 signal of FIG. 3 output from the oscillator 25 and the S2 signal output from the clamp signal 24. To the loop (PLL) circuit 26.

When the clock signal contained in the above-described detected line 12H, that is, the clock signal contained in section B, is synchronized with the clock signal output from the oscillator 25 by the phase-locked loop circuit 26, the microprocessor 21 ) Switches the first switch SW1 to the terminal P1 and the second switch SW2 to the terminal P2.

The signal S3 output from the clamp circuit 24 and input to the microprocessor 21 is greater than the signal S4 output from the oscillator 25 by the interval C in FIG. 2 and input to the microprocessor 21. This signal is 0.1μsec ahead. Therefore, the microprocessor 21 can accurately detect the program code even if some distortion occurs in the program code transmitted from the broadcasting station.

The microprocessor 21 continuously compares the reservation code related to the program to be reserved first among the one or more reservation programs input by the user with the program code transmitted from the broadcasting station at one second intervals. That is, the program code transmitted from the broadcasting station and the channel used by the broadcasting station are compared with the stored reservation code. When the same code occurs in the code comparison, the microprocessor 21 controls the drive unit 27 to record the program. During the recording, code comparison is performed at intervals of 1 second, and if the program code transmitted from the broadcasting station has a code value corresponding to the hexadecimal FFFF indicating the end of the program, the recording of the program is completed and stored again. Repeats all reservation codes that have stored all reservation recording processes after comparing the reservation code with the transmitted program code and channel code at 1 second intervals.

4 is a flowchart showing a reservation recording method according to an exemplary embodiment of the present invention, in which a whole code for program reservation recording is input as a six-digit decimal number, and a reservation recording for transmitting a predetermined code indicating the end of a program from a broadcasting station. By the method.

When a user inputs a 5-digit or 6-digit number consisting of a program-specific code and channel code designated by a broadcast station to reserve a recording of a desired program (step 1), the microprocessor determines whether the number of times the input key is 5 is entered. (Step 2). If a five-digit key input has occurred in the key input number determination, the microprocessor signals as if the number 0 was last input (step 3). The 6-digit reservation code generated by key input or further manipulation of the microprocessor is converted into a 4-bit binary code for each digit (step 4). For example, if the input decimal code is 2132, first, 0 is assigned to the end of the decimal code to make 21320 and then converted to binary code 0000 0010 0001 0011 0010 0000. By converting the decimal code into binary code of 4 bits like this, the code indicating the end of the program can be made into a number that does not overlap the program code. When transcoding is complete, the microprocessor checks the power state (step 5). If the power is on, the operation mode before the key input for the scheduled recording is executed (step 6). In the power off state, the scheduled recording mode is turned on (step 7).

In the reservation recording mode on, the microprocessor detects the program code and the corresponding channel sent from the broadcasting station at 1 second intervals and compares it with the reservation code input by the user (step 8). If the reservation code input by the user in the code comparison and the program code transmitted from the broadcasting port match, the microprocessor controls the reservation recording system to start recording (step 10). That is, the recording of the received video signal is performed by turning on the reservation recording system. During the recording period, the code sent from the broadcasting station is detected (step 11) and judged (step 12) continuously at the interval of one second. ). Then, the microprocessor checks whether the reserved code remains (step 14), and repeats the operation after the operation (step 8) comparing the unrecorded reserved code with the code transmitted from the broadcasting station. If all the programs reserved by the user are recorded according to the reservation code, the reservation recording mode is turned off (step 15). The scheduled recording operation is completed.

In the reservation recording system of the present invention as described above, setting a program code for distinguishing programs that are broadcast for a predetermined period with a serial number assigned to the program, and receiving and storing a reservation code for reservation recording of the program; And detecting a program code and a broadcast channel from a video signal transmitted from a broadcasting station at predetermined time intervals, comparing the reserved code with the reserved code, and performing reservation recording according to a result of the detection and comparison. Means for detecting a program code from a video signal transmitted from a broadcasting station, means for a user inputting a reservation code consisting of a program code and a broadcast channel, a microprocessor for controlling reservation recording according to the above-described method, And by implementing in the weak recording device consisting of a drive means for executing a recording operation There is an effect that the user can record the running time is flexible programs, such as program code also precisely scheduled and broadcast channels when you only enter the running time of the scheduled program changes or sporting events.

Claims (9)

In a reservation recording method using a comparison of a code for reserved recording contained in a video signal transmitted from a broadcasting station and a code input by a user, programs and broadcast channels that are broadcast for a predetermined period with a serial number assigned to the programs Setting a reservation code for distinguishing from each other; storing a reservation code for reservation recording of a program; Detecting a program code and a broadcast channel from a video signal transmitted from a broadcasting station at predetermined time intervals and comparing the reserved code with the reserved code; And recording according to the result of the detection and comparison. The reservation recording method according to claim 1, wherein the reservation code input step inputs a unique code of a program to be reserved and a broadcast channel of the program. 3. The recording method according to claim 2, wherein the reservation code is a broadcast channel divided into a four-digit decimal number and a two-digit decimal number. 4. The recording method of claim 3, wherein a broadcasting channel to be reserved by a decimal digit input can be selected. 4. The recording method of claim 3, wherein the program code setting step sets a program code of a program to be broadcast for three months. 5. The program according to claim 2 or 4, wherein the reserved recording step performs a recording operation when the detected program code and the broadcast channel correspond to the reserved code, and detects a program code continuously transmitted during the recording operation. And if the code indicates the end of the program, the recording operation is terminated. In a reservation recording apparatus using a comparison between a code for reservation recording contained in a video signal transmitted from a broadcasting station and a code input by a user, programs and broadcast channels that are broadcast for a predetermined period by a serial number assigned to the programs are recorded. Means for inputting reservation codes which are distinguished from each other; Signal detecting means for detecting a program code and a broadcasting channel from the video signal; A microprocessor which receives and compares a program code and a broadcast channel from the reservation code and signal detection means and generates a control signal for reservation recording according to the comparison result; And recording means for receiving the control signal of the microprocessor and recording the program medium designated by the reservation code. 8. The reserved recording apparatus according to claim 7, wherein the signal detecting means includes a line detecting unit for detecting a predetermined line containing a program code from a video signal transmitted from a broadcasting station. The method of claim 8, wherein the microprocessor compares the program code and the broadcast channel input from the signal detection means with the reservation code input through the reservation code input means at predetermined time intervals. If the channel coincides with the reservation code, a control signal for performing the recording operation is generated, and during the recording operation, the program code input through the signal detecting means is continuously examined, and if the program code is a predetermined code indicating the end of the program, And a control signal for terminating the recording of the program.