KR19980011839U - VSI System with Zero-Stop Shortcut Key - Google Patents

Abstract

The present invention relates to a tape recording / playing means using the zero stop function of a counter in a VSI system. In the related art, a tape is set as a recording start point by a user pressing a zero stop key while a recording operation is completed with a zero stop function of a counter. It was difficult to avoid the hassle caused by increasing key presses when performing these functions because the play key had to be pressed again afterwards.

According to the present invention, the microcomputer 21 drives the deck unit 25 and rewinds the tape to a count of 00:00 when the user presses the zero stop key. ), A control pulse processor 23 for processing the control pulses detected from the control head 22 of the recording / reproducing system and providing them to the microcomputer 21, and rewinding and reproducing under the control of the microcomputer 21. It is to provide a VSI system having a zero-stop hotkey function characterized by a configuration including a deck portion 25, etc. for performing the operation.

Description

VSI System with Zero-Stop Shortcut Key

The present invention relates to a means for enabling playback at a zero stop position in which a zero stop is set during recording / playback in a video cassette recorder (hereinafter referred to as VCR) system. After the tape is recorded through the function, if the tape is located at the start point of recording after pressing the zero stop key, the process of performing the playback operation by pressing the play key can be shortened so that it can be made with a single key press.

The VSI system is a device that records, reproduces and displays video / audio signals provided from various video sources (video camera, cable broadcasting, air broadcasting, etc.).

VSI system has VIS (VHS INDEX SEARCH SYSTEM) function to record the location information at the time of tape recording. It records a certain signal when recording video tape and when the recording is completed by user's choice It was a quick way to find the first part of a recorded pro.

In the conventional method, there are three methods for searching for a predetermined program recorded on a tape, and in the case of the above-described service function, there is a method for searching through the OS menu → tape function selection → index-→ playback step. In the case of searching by means of rewinding (REW) → stop → playing, it is searched through three steps.However, the counter method is to set the counter before recording to 0:00:00, and select the OSD menu → Tape function. There were five steps to go to Selection → go to 0-→ Playback.

Therefore, such a conventional VSI system has a trouble to find by the above complicated operation to go back to the beginning of recording by rewinding to see the recorded pro after completion of recording.

This means that the VSI system will not be able to return to the original recording section until the user selects the rewind mode again because the power is automatically turned off after the recording is completed. It was only possible when the car was driven to the end.

Meanwhile, in the related art, a method of automatically rewinding to a portion where recording has started when recording is completed in the recording mode is known from Korean Patent Publication No. 3753, Patent Publication No. 94-8878.

Here, as shown in FIG. 1, a key metrics unit 7 including keys related to program reservation recording of the VSI system and various keys related to the operation mode of the VSI system is provided, and the timer microcomputer 10 includes a key signal. A key input signal transmitted from any key is detected by the scan, and the key data is transmitted to the scissor / servo microcomputer 15 in series.

The program recording time, the end time, and the desired broadcast channel of the program input by the user through the key metrics unit 7 are recorded in the timer microcomputer 10. In general, such a program reservation recording setting includes up to several different programs. I can make a reservation.

The ciscon / servo microcomputer 15 is a means for controlling the overall control of the VSI system and the servo device, and operates the deck unit (not shown) in the corresponding mode according to the key data transmitted from the timer microcomputer 10. Let's do it.

In addition, a signal corresponding to the corresponding mode decoded in the ciscon / servo microcomputer 15 may be provided in series back to the timer microcomputer 10 to enable the timer microcomputer 10 to display various modes. have.

The ciscon / servomicro computer 15 provides a control signal for outputting the bismark signal from the control signal recording unit 3 by advancing the deck into the recording mode in the recording mode, and the control signal recording unit 3 is the ciscon / In response to the control signal of the servomicrocomputer 15, the bismark signal is provided to the control head 9 so that the bismark is recorded at the beginning of the tape to be reserved.

Meanwhile, the ciscon / servomicro computer 15 which receives the signal indicating the reservation recording completion time from the timer microcomputer 10 causes the deck unit to be performed in the rewind mode. During the rewind mode, the control head 9 reads the bismark signal together with the control signal from the tape, and this read bismark signal is transmitted to the amplifier 7.

The bismark signal properly amplified by the amplifier 7 is transmitted to the ciscon / servomicro computer 15, and the ciscon / servomicro computer 15 judges that it is the recording start portion of the tape and stops the deck section according to this signal. Make a state (stop mode).

2 shows an automatic rewinding method after a specific program reservation recording in the conventional system as described above. Here, the recording start time is continuously checked while the timer microcomputer 10 confirms that it is in the current program reservation recording mode ( Steps S1, S2). When the timer micro computer 10 transmits the key data related to the recording to the ciscon / servomicro computer 15 when the recording start time is reached, the ciscon / servomicro computer 15 advances the deck to the recording mode. By providing a control signal to the control signal recording section 3, a bismark signal is output.

At this time, the Bis-Mark is recorded for a predetermined time by the control head unit 9, for example, about 5 seconds for the tape to be recorded while the recording mode is executed (step S3).

In the above, the timer microcomputer 10 continuously checks the recording end time and informs the status of the scissor / servomicro computer 15 at the end of the recording time, thereby causing the scissor / servomicro computer 15 to record the deck part. While the mode is stopped, the number of reserved programs (PGM) is reduced one by one, and it is continuously checked whether there is a program to be reserved more (steps S4, S5, S6).

If there is no reservation program anymore, i.e., the value of the temporary register X becomes zero, the process goes to the next step. The steps described above are useful when scheduling a large number of programs, and are particularly suitable when scheduling a short program for a short period of time.

The timer microcomputer 10, which determines that there are no more scheduled programs to record thereafter, causes the ciscon / servomicro computer 15 to perform the rewind mode and, therefore, under the control of the ciscon / servomicro computer 15 While the rewind mode is performed, a bismark can be detected together with a control signal from the control head 9.

In addition, in the above, the detected bis signal is amplified by the amplifier 5 and then transferred to the ciscon / servomicro computer 15, and the ciscon / servomicro computer 15 has one program reserved for recording. You will proceed to the stop mode. However, if more than one program is reserved for recording, as in steps S5 and S6, the ciscon / servomicro computer 15 steps to find the first bismark by comparing the number of reserved programs with the number of detected bismarks. Repeated from S8.

When the first bismark is found, that is, when the contents of the temporary register Y are zero, the ciscon / servomicro computer 15 proceeds to the stop mode and then turns off the power to the initial state of the reserved recording (step S12).

As described above, a technique using a vis means has been shown so as to automatically go to a specific place and stop after the recording program is performed.

On the other hand, in the zero stop recording mode by the counter, go to the OS screen → select counter → counter 00:00 display → press the record key → record character display → count number display → → recording completion → press zero stop key → recording time (00:00) Automatic Rewind → Press Play key → It is performed as a series of work processes to the playback mode. However, in the prior art, two key presses are performed until the playback operation is performed after the recording operation using the zero stop function. It was not desirable because it had to be performed.

An object of the present invention is to improve the problems of the prior art as described above, in particular, the system does not perform a playback operation by pressing the zero stop key → automatic rewind → play key after completion of recording using the count zero stop function in the system. Zero stop key presses enable automatic rewind and playback operations to shorten key press numbers when using these systems.

The present invention is particularly designed to realize the purpose of the above example, and the system is connected to the microcomputer, which controls to rewind to the count 00:00 and perform the playback operation when the zero stop key is pressed after the end of recording by the zero stop. It is characterized by a VSI system having a zero stop hotkey function, which includes a control pulse processing unit which detects a control pulse signal on a tape and provides the microcomputer to a microcomputer, and a deck unit for performing automatic rewind and playback operations.

1 is a reference diagram showing the automatic repeat means for a specific section in the conventional VCR (Video Cassette Recorder) system

2 is an example of an automatic repeat processing program associated with FIG.

Figure 3 is a system main circuit block diagram related to the present invention

Figure 4 is an example of a zero stop hot key processing program of the present invention

** Explanation of symbols on main parts of the drawing **

20 microcomputer 22 control head

23: control pulse processing unit 24: digitron

100: zero stop hot key processing program

As will be described in more detail below with reference to the accompanying drawings will be understood more detailed features of the present invention.

3 shows a VSI system having a zero-stop shortcut function according to the present invention.

In this case, the feeder reel SR and the reel reel TR which accommodates the cassette tape margin (CST) mounted on the set are provided. When the user presses the zero stop key, the deck unit 25 is driven and the tape is Processes the control pulses detected by the microcomputer 21 which rewinds to the count 00:00 point and proceeds with the playback operation, the digitron 24 displaying the count value, and the control head 22 of the recording / playback system. A control pulse processor 23 provided to the microcomputer 21, a deck unit 25 for rewinding and reproducing operation, a key unit 26 having a zero stop key, an OSD unit 27, and the like. have.

When the user proceeds to the recording operation using the zero-stop function by the counter, the microcomputer 21 rotates the reel from the supply reel SR and the take-up reel TR as shown in FIG. 3. The speed is calculated, and the recording time at the time of recording is calculated on the basis of the tape thickness information of the user and the tape speed information, and the remaining time at the time of reproduction is calculated.

At this time, the microcomputer 21 stores the counter zero stop point 00:00:00 before performing the recording operation, and counts the recording time based on this.

When the recording is completed while the microcomputer 21 performs the zero stop function as described above, when the user presses the zero stop key on the key portion 26 side, the microcomputer 21 drives the deck portion 25 to store in advance. The tape will be rewound up to the 00:00 count and the playback operation will proceed automatically.

Meanwhile, the above operation is performed together with the zero-stop hotkey processing program 100 of FIG. 4, which checks whether a tape is inserted while the system is powered on, and displays an OSD counter selection menu when the tape is inserted. Then, the digitron value indicates 00:00 of the user setting (steps 101 to 104).

After that, if the recording key is turned on, the recording key is input, and if there is a recording key input, the recording progress and counting operations are performed until the recording is completed, and the recording is terminated (steps 105 to 107).

Thereafter, the user checks whether there is a zero stop key input, and when there is a zero stop key input, the tape is rewound up to count 00:00 and the playback operation is performed (steps 108 to 110).

In this invention, after the user completes the recording operation using the zero stop function by the counter, the user presses the zero stop key → rewind operation → playback without pressing the zero stop key → rewind operation → press the play key as in the prior art. By performing the operation, it is possible to reduce the number of key presses during this operation, thereby ensuring the convenience of using the system.

Claims (1)

In a VSI system having a zero stop function including a system microcomputer, the system operates the deck unit 25 when the user presses the zero stop key, rewinds the tape to a count of 00:00, and then plays back. A control pulse processor 23 for processing the control pulses detected from the control head 22 of the recording / reproducing system and providing them to the microcomputer 21, and the microcomputer 21; VSI system having a zero-stop hotkey function characterized by a configuration including a deck unit 25 for rewinding and playing operation under the control of