KR0126818B1 - Automatic switching method to tv mode in video cassette recorder - Google Patents

Abstract

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Description

How to Automatically Switch TV Modes on Your VCR

1 is a schematic diagram of a VCR for implementing a TV mode automatic switching method according to the present invention.

2 is a TV mode reservation flowchart of the circuit shown in FIG.

3 is a flowchart of TV mode reservation execution of the circuit shown in FIG.

* Explanation of symbols for main parts of the drawings

10 microprocessor 20 tuner

30: Servo 40: Deck

The present invention relates to a method of reserving a TV mode at a desired time in advance in a video cassette recorder (hereinafter referred to as a VCR) and automatically switching the TV mode from the VCR mode at that time.

The conventional VCR has to stop the tape when watching a TV program while watching the VCR.

In addition, when watching a VCR when there is a TV program that must be watched, it was very difficult to watch it exactly in time with the TV program. So there was a problem that often missed an important program.

Accordingly, an object of the present invention is to reserve the TV mode at a desired time and automatically switch from the VCR mode to the TV mode at the scheduled time to prevent the TV program to be watched on time while watching the VCR. To provide a way.

The present invention for achieving this purpose is a process of checking whether the reservation time is set according to whether or not the TV mode reservation key input, the process of checking the reservation on time when the reservation time is set, and the reservation on time In this case, the deck mode is checked to stop the deck mode, and then switch to the TV mode, and after switching to the TV mode, the reservation off time is checked by checking the reservation TV mode.

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

1 is a circuit diagram of a VCR that is most suitable for carrying out the TV mode switching method according to the present invention. The microprocessor 10 recognizes a remote control key and controls the system, and is received from the microprocessor 10. A tuner 20 for tuning broadcasts by data, a servo 30 for generating a DC signal by data received from the microprocessor 10, and a DC signal received from the servo 30; It is composed of a deck (40) driven by.

FIG. 2 is a TV mode reservation flow chart of the circuit shown in FIG. 1, and if the TV mode reservation key input is performed, it is checked whether the reservation on time, reservation off time, and channel reservation setting are completed.

FIG. 3 is a flowchart of TV mode reservation execution of the circuit shown in FIG. 1. If a TV mode reservation exists, the reservation on time is checked. If the reservation on time is checked, the current deck 40 mode is checked. The mode is switched to the mode, and the reservation off time is checked and the reservation TV mode is cleared when the reservation off time is reached.

Based on the above-described configuration, the present invention will be described in detail with reference to FIGS.

First, it is reserved by the micro-processor 10 shown in FIG. 1 to automatically switch from VCR to TV mode at the correct time of the desired TV program. In the reservation method, when the TV mode reservation key is first pressed on the remote controller, the microprocessor 10 checks whether or not the TV mode reservation key is input in step (1A) shown in FIG. If the reservation key is input, the step (2A) is performed. In step (2A), it is checked whether the reservation on time (called Ton) is completed. If on time (Ton) is set, it is checked in step (3A) whether the setting of the reservation off time (called Toff) is completed. If the reservation on time (Tom) is not set, the step (2A) is performed again. If the reservation off time Toff is set, it is checked in step 5A whether channel reservation setting is completed. If the reservation off time Toff is not set, it is checked whether data input is ignored for 5 seconds in step 4A, and if it is not ignored, step 3A is performed again. If the data input is ignored, step 5A is performed. When the channel reservation setting is completed in step (5A), the process is terminated and returned to its original state. If not, the process is performed again (5A).

When the reservation time is set, a method for performing TV reservation shown in FIG. 3 is performed. First, in step (1B), it is checked whether there is a TV mode reservation, and if it does not exist, it is terminated and returned to its original state. In step (2B), it is determined whether the value of the current timer (called Tr) is equal to or larger than the Ton value. That is, it is determined whether Tt ≧ Ton. If the Tt value is smaller than the Ton value, step (1B) is performed again. If the Tt value is greater than or equal to the Toff value, step (3B) is performed to check the current deck 40 mode. If the deck 40 mode is stopped (6B), and performs the initial tuning in the tuner 20 to the reserved TV channel by switching to the TV mode by the reserved time. The deck 40 mode is Play or Fast Forward (hereinafter referred to as FF) / Rewind (hereinafter referred to as REW), still, forward picture search (hereinafter referred to as FPS). In the case of Reverse Picture Search (hereinafter referred to as RPS), the current deck 40 mode is stopped in step (4B), and then step (6B) is performed. When the current deck 40 mode is a record (RECORD: hereinafter referred to as REC) or a timer REC, the TV mode reservation is ignored until the current deck 40 mode is terminated in step 5B and step 2B is performed. Perform. After performing step (6B), it is determined in step (7B) whether the Tt value is greater than or equal to the Toff value. That is, it is determined whether Tt≥Toff. If the Tt value is smaller than Toff, check step (7B) again. If the Tt value is greater than or equal to Toff, perform step (8B). In step (8B), the reserved TV mode is cleared, the deck mode is stopped, and the process ends.

As described above, the VCR reserves the TV mode at the desired time and automatically switches from the VCR mode to the TV mode at the scheduled time, so that the user can watch the TV program that he / she wants to watch at the exact time while watching the VCR. There is an advantage in satisfying the desire and making the product reliable.

Claims (3)

In switching a TV mode in a general VCR, a first process of checking whether a reservation time is completed according to whether the TV mode reservation key is input or a reservation on time (Ton) is checked when the reservation time is completed. A second process; A third step of checking the deck 40 mode to switch to the TV mode after the deck mode is checked if the reservation on time is On; And a fourth process of stopping a reserved TV mode by checking a reservation off time (Toff) after switching to the TV mode. The method of claim 1, wherein the first process sets the reservation time setting to check the completion of the reservation on time (Ton), the completion of the reservation off time (Toff), and the completion of channel reservation setting. Switching method. 3. The third process of claim 2, wherein deck 40 mode ignores TV mode reservations until deck 40 mode is terminated at the time of record or timer recording, and deck 40 mode is played or fast. Method of automatic TV mode switching in a VCR characterized by stopping the current deck mode 40 in forward / rewind, still, forward picture search, and reverse picture search.

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