KR0165270B1 - Apparatus and method for auto searching of record ad reproduce device - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic search apparatus and method in a recording / playback apparatus, and more particularly, to an automatic search apparatus and method for automatically searching for a section set by a user.

To this end, a counter setting unit for setting a predetermined counter value for the user to perform the fast forward operation or the fast reverse operation, and control the fast forward operation or the fast reverse operation by the predetermined counter value, and perform the fast forward operation or the fast reverse operation. And a control unit repeatedly controlling the reproduction of the reproduction key for a predetermined time after the operation until the user inputs the reproduction key.

Therefore, the user can easily search for desired information by repeating the play operation after performing the FF operation or the REW operation by the set counter section.

Description

Automatic search apparatus and method of recording and playback apparatus

1 is a circuit diagram for operating a counter of a conventional recording and reproducing apparatus.

2 is a block diagram of an automatic search apparatus according to the present invention.

3 is a timing diagram according to FIG.

4 is a flowchart of an automatic search method according to the present invention.

* Explanation of symbols for main parts of the drawings

10: micom 23: take-up reel

30: buzzer 40: on-screen display

50: display unit 60: counter selector

70: counter setting unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic search apparatus and method in a recording / playback apparatus, and more particularly, to an automatic search apparatus and method for automatically searching for a section set by a user.

A conventional recording and reproducing apparatus such as a video casette recorder or a camcorder performs a search operation to reproduce desired information in advance when it is desired to reproduce information recorded on a tape. That is, the user performs fast forward (FF) or fast forward (Rewind) on the portion to be played back, increases or decreases the counter value, and randomly stops at the desired counter value to perform the playback key.

1 is a circuit diagram for operating a counter of a conventional recording and reproducing apparatus.

Referring to FIG. 1, the light signal generated from the light emitting diode (LED) is transmitted to the take-up reel 20, and the base of the transistor Q2 is rotated as the reel 20 rotates. The pulse wave is reflected on the side. At this time, the transistor Q2 performs a switching operation while repeating on and off. In addition, the power supply Vcc is input to the base side of the transistor Q1 while the transistor Q2 performs a switching operation. The transistor Q1 is input to the microcomputer 10 while repeating the on and off operations.

That is, when the transistor Q2 is turned on, the transistor Q1 is turned off, and a high level value is input to the pulse stage PLS of the microcomputer 10, and when the transistor Q2 is off, the transistor Q1 is turned on and the microcomputer ( The low level value is input to the pulse stage of 10). The microcomputer 10 calculates a signal at the pulse stage and outputs the counter value.

The user performs the FF key and the REW key while looking at the displayed counter value to search for desired information.

However, this conventional example is inconvenient in that the user not only keeps watching the counter value, but also stops the play operation again when the user does not want the part, and repeatedly executes the fast forward key or the fast reverse key. .

As another example of the related art, a recording / playback apparatus having an index function not only needs to manually index the desired playback portion, but also indexes the index value when the index section is long. There was an inconvenience to find.

Accordingly, an object of the present invention is to set the desired counter value, and then perform the fast forward or fast reverse operation by the set counter value and repeat the operation for a predetermined time to solve the above problems. An automatic search apparatus and method for searching are provided.

Another object of the present invention is to provide an automatic search apparatus and method for outputting an alarm during an operation of reproducing for a predetermined time.

In order to achieve the above object, an automatic search apparatus of a recording / playback apparatus, comprising: a counter setting unit for setting a predetermined counter value such that a user performs a fast forward operation or a fast reverse operation;

And a control unit which controls the high speed forward operation or the high speed backward operation by the predetermined counter value and repeatedly controls the reproduction of the high speed forward operation or the high speed backward operation for a predetermined time until the user inputs the playback key. It features.

In order to achieve the above object, an automatic search method of a recording / playback apparatus comprising: a first step of setting a counter value for a user to perform a fast forward operation or a fast reverse operation; A second step of determining whether an increased counter value or a reduced counter value coincides with a set counter value by performing a fast forward operation or a fast reverse operation; And a third step of automatically regenerating for a predetermined time until a normal play key is input if the counter values match in the second step.

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

2 is a block diagram of an automatic search apparatus according to the present invention.

In FIG. 2, the automatic search apparatus of the present invention includes an on-screen display (OSD) 40 and a display unit 50 for displaying a means for counting the driving of a recording medium, a counter value or operation information, and the like. A counter selector 60 for selecting a counter for the user to input a counter value, a counter setter 70 for setting the counter value, a buzzer 30 for outputting an alarm during automatic playback, It consists of the microcomputer 10 which controls a system.

Next, the operation of the block diagram of FIG. 2 will be described.

The user presses a key of the counter selector 60 to set a counter section for the FF or REW operation. At this time, the display unit 50 displays 0 when the counter value is 4 digits and blinks 0 of the first digit. In the next counter setting unit 70, a desired number from 0 to 9 is set. To set the next second digit in the desired number of users, pressing the key of the counter selector 60 causes the second digit to be blinked and set the same as described above. When all four digits are set, they are stored in the memory inside the microcomputer 10.

Next, when the user runs the tape in the FF or REW operation to search for desired information, the count pulse signal is input to the PLS terminal of the microcomputer 10. The microcomputer 10 counts the count pulse signal after initialization, and compares the counted count with a counter value preset in the internal memory. If the counted count coincides with the set counter value, the FF or REW operation is stopped and the automatic regeneration operation is performed for a predetermined time.

The count pulse signal is applied to the base side of transistor Q3, and the emitter side of transistor 03 is applied to the collector side of transistor Q4. The microcomputer 10 outputs the output signal of the control terminal CTL as a high level signal when the counted count is equal to the counter value set in the internal memory. The high level signal of the control terminal CTL is applied to the base side of the transistor Q4 to operate the buzzer 30 while the transistor Q4 is turned on. The buzzer 30 operates during the automatic regeneration operation. When the automatic regeneration operation ends, the output signal of the control terminal CTL of the microcomputer 10 is low level and the operation of the buzzer 30 is stopped.

3 shows a timing diagram according to FIG.

3 (A) to (F) are servo data signals, and (A ') to (F') are output signals of the control terminal of the microcomputer 10.

3 (A) and 3 (A ') are timing charts for automatic search during the FF operation. The user performs FF operation on the counter section set in the internal memory of the microcomputer 10, and when the set counter section ends, Play the replay. The buzzer 30 operates as the signal of the control terminal of the microcomputer 10 becomes a high level. The above operation is repeated until the user searches for desired information.

3B and 3B 'are timing diagrams for automatic search during REW operation, which is the same as the above-described FF operation.

3 (C) and 3 (C ') show the normal play when the play key (PB) is input during the auto play operation when the user searches for the desired information after the FF or REW operation. It works.

3 (D) and 3 (D ') show the fast picture search (FPS) operation instead of the playback operation (PB) of the 3 (A) and 3 (A') diagrams after the FF operation. Timing diagram.

3 (E) and 3 (E ') show the reverse picture search RPS operation instead of the playback operation PB of the 3rd (B) and 3rd (B') diagrams after the REW operation. Timing diagram.

3F and 3F 'are timing diagrams for the slow motion search (SLOW PB) operation instead of the reproducing operation PB after the FF operation or the REW operation.

4 shows a flowchart of an automatic search method according to the present invention.

Referring to the operation flow of Figure 4 as follows.

The user inputs a counter selection key to set a counter value for the FF operation or the REW operation (step 10). When the counter selection key is input, when the first digit of the counter is blinked, the user sets a desired counter value between 0 and 9 (steps 20 and 30). Enter the counter value until the counter selection key and setting key are entered at the same time. When the counter value is input to the Nth digit of the counter, the counter section setting is completed (steps 40 to 60).

Next, execute the FF key or REW key to retrieve the information you want.

If you execute the FF key, if you execute the FF key after initializing the counter, the counter value will increase. Determines whether the set counter value matches the incremented counter value. If the counter values match, the FF operation is stopped (steps 70 to 100,150).

If the REW key is executed, the counter value decreases if the REW key is executed after initializing the counter. It is determined whether the set counter value matches the decremented counter value. If the counter values match, the REW operation is stopped (steps 110 to 150).

Next, an automatic reproduction operation is performed for a predetermined time so that the user can search for desired information (step 160). If the desired information is found during the auto play operation, enter the play key to resume normal play.

If not, go to step 70 and repeat the above operation (steps 170 and 180).

As described above, the present invention has an effect that the user can easily search for desired information by repeating the play operation after performing the FF operation or the REW operation by the set counter period.

Claims (3)

A recording and reproducing apparatus, comprising: counter setting units (60, 70) for setting a predetermined counter value such that a user performs a fast forward operation or a fast reverse operation; A control unit 10 which controls the high speed forward operation or the high speed backward operation by the predetermined counter value and repeatedly controls the operation of reproducing the high speed forward operation or the high speed backward operation for a predetermined time until the user inputs the play key. Automatic search device characterized in that it comprises a. The automatic search apparatus according to claim 1, wherein the automatic search apparatus further comprises a buzzer (30) for outputting an alarm signal during the playback for the predetermined time. An automatic search method of a recording / playback apparatus, comprising: a first step of setting a counter value sufficient for a user to perform a fast forward operation or a fast reverse operation; A second step of performing a fast forward operation or a fast reverse operation to determine whether an increased counter value or a reduced counter value matches a set counter value; And a third step of automatically regenerating for a predetermined time until a normal play key is inputted when the counter values match in the second step.