KR0132885B1 - Method of memorizing and searching recorded position and apparatus thereof - Google Patents

Abstract

A method and an apparatus for memorizing and searching a recording position are disclosed. The method comprises a recording position memorizing process and a recording position searching process. When a recording position memorizing key is operated by a user, a present tape number is stored, and then the tape is rewound to an initial position. At this time, a control pulse is counted, and the counted value at the initial position is stored. In case that a recording position searching key is operated and a present tape number is selected, the counted value of the selected tape number is searched, and then the control pulse is counted while the tape is winding. The winding proceeds until the searched counted value is equal to the preset counted value.

Description

Recording location memory and searching method and device

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

2 is a flowchart showing a recording position storing method according to the present invention.

3 is a flowchart showing a method of searching for a recording position stored in FIG.

* Explanation of symbols for main parts of the drawings

10: audio / control head 20: servo

30: microcomputer 40: on-screen display control unit

50: remote control receiver 60: remote control transmitter

The present invention relates to a method and apparatus for storing and searching a recording position in a recording and reproducing system, and more particularly, to a recording position storing and searching method for searching for a recording position by storing a final recording completion point and an apparatus thereof. .

In a recording and playback system such as a video tape recorder (hereinafter referred to as a VTR), when a broadcast signal or other signal to be recorded is applied, the recording mode can be controlled immediately if there is no recorded content on the tape. If other contents have already been recorded, it is inconvenient for the user to observe the screen while playing and search for a recording position, and then control the recording mode.

Accordingly, an object of the present invention is to record the recording position memory for recording from the time when the last recording is completed and the time when the recording is completed automatically when the recording mode control for the signal to be applied by storing the tape to solve the above-mentioned inconvenience and A search method and a device thereof are provided.

In order to achieve the above object, the recording position memory and search method of the present invention controls the recording position memory key by the user, designating and storing the current tape number, and then rewinding to the first point of the tape. The recording position storing process of counting control pulses generated during rewind and storing the counted value when detected at the first point, and when the recording position search key is controlled by the user and the number of the currently loaded tape is selected, the recording position. After retrieving the count value corresponding to the selected tape among the stored count values by the memory process, the number of control pulses input is counted while searching forward from the first point of the tape, and the counted value and the pre-stored control pulses are stored in advance. The forward direction until the count value found It characterized by constituted by any recording position searching process to continue value.

In order to achieve the above object, the recording position memory and searching apparatus of the present invention comprises a head for picking up at least the control pulse from a tape storing a video signal, an audio signal, a control pulse, and the like, and the control pulse picked up from the head. For the recording unit memory control signal and the recording position search control signal under the control of the user; and if the recording position memory control signal is applied from the remote control unit, the number of control pulses applied from the servo unit is displayed. Stores the counted value up to the first point of the tape and if the recording position search control signal is applied, counts the number of control pulses output from the servo unit from the first point of the tape and compares it with the count value already stored. Microcomputer for searching, the remote control unit When the recording position memory control signal is applied, the display unit controls the display of the screen information so that the user can specify the number of the currently mounted tape, and when the recording position search control signal is applied from the remote controller, the micom And a display control unit for controlling the display of the screen information so that the user can select a tape number which is controlled by the user.

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

1 is a block diagram of an apparatus according to the present invention, and is applicable to a general recording and reproducing apparatus.

The apparatus of FIG. 1 is comprised of the head 10, the servo part 20, the microcomputer 30, the on-screen display control part 40, and the remote control receiving part 50 and the remote control transmitting part 60 which are command application means.

The head 10 is a means for picking up an audio signal and a control signal from a tape (not shown) in which video and audio signals and other control information are recorded.

The servo unit 20 is a means for controlling the tape running of the VTR and the drum motor (not shown) and shaping and outputting the shape of the control pulse applied from the head 10.

The remote control transmitter 60 is a means for outputting a command authorized by the user, and the remote control receiver 50 is a means for receiving a signal output from the remote control transmitter 60.

The microcomputer 30 controls all functions of the system by the signal output from the remote control receiver 50, and in particular, counts the number of control pulses output from the servo unit 20 and the number of the currently mounted tape. It is a means for storing and storing the recording position, and searching for the recording position using the stored tape number and the control pulse count value.

The on-screen display control unit 40 is controlled by the microcomputer 30 to display screen information specifying the number of the mounted tape in the recording position storage mode and to display the mounted tape number in the position search mode. Means for controlling the selected subtitle information to be displayed.

2 is a flowchart showing a process of performing a recording position memory mode, wherein step 100 is a process of setting a recording position memory mode, steps 101 to 103 are a process of storing a number of a currently loaded tape, and 104 to 108 Step is the process of remembering the last recorded point.

A process of performing the recording position memory mode shown in FIG. 2 will be described as follows.

When the recording position memory mode is set (step 100), a screen for specifying a tape number for recording position memory is displayed (step 101). A predetermined number is assigned to the recorded tape (step 102), and the control pulse is counted (step 105) while REW is recorded from the recording completion point to the first start point (step 104). In step 106, the counting is stopped (step 107). The counted control pulse is stored by matching the tape number (step 108).

3 is a flowchart illustrating a process of searching for a recording position stored by the same process as in FIG. 2. Step 110 is a process of setting a recording position search mode, and steps 111-113 are recording positions of a currently loaded tape. A process for setting a condition for searching is performed, and steps 114 to 120 are for searching for a recording position while searching forward from the first point of the tape according to the set condition.

The process of performing the recording position search mode shown in FIG. 3 will now be described.

The recording position search mode is set (step 110), a screen for selecting the number of the tape is displayed (step 111), and the number of the currently loaded tape is selected (step 112). After reading the count value of the recorded control pulse (step 113), a REW is performed at the current point of the tape (step 114) and stops when a start sensor is detected at the initial point of the tape (step 115). FF is performed from this point (step 117) to count the input control pulses (step 118). In the recording position recording mode, the control pulses stored by matching the same tape number and the control pulses counted in step 118 are counted. Compare (Step 119)

When the comparison value of step 119 is the same, the FF operation of the magnetic tape is stopped (step 120). The position of the stopped tape is the final recording completion point.

Next, the operation of the apparatus shown in FIG. 1 will be described in detail with reference to FIGS. 2 and 3.

First, the operation of storing the completion point of the recording operation will be described.

In this embodiment, the position control is performed by using the control pulses recorded in the control track, but the recording position is stored using the number of sync signals or reel pulses or the remaining information of the tape instead of the control pulses. You can control the search.

When the recording of the predetermined magnetic tape is completed, the user controls the recording position memory key through the remote control transmitter 60 to send a control signal for the system to perform the recording position storage mode (step 100). The transmitted signal is applied to the remote control receiver 50. The remote control receiving unit 50 converts the received data into data that can be recognized by the armature 30 and outputs the converted data. The remote control transmitter 60 and the remote control receiver 50 may be configured in the same manner as a conventional remote controller, and may use the front panel of the system instead of the remote controller.

When the recording position memory control signal is applied from the remote control receiver 50, the microcomputer 30 outputs a control signal to the on-screen display controller 40 so that a screen for designating the current tape number is displayed. Accordingly, the on-screen display control unit 40 outputs the video signal to be displayed to a display device (not shown) or to an RF (Ratio Frequency) converter (not shown) (step 101).

When the user designates the current tape number by using the remote control transmitter 60 with reference to the displayed screen (step 102), the microcomputer 30 stores the designated number in a predetermined area (step 103). Next, a control signal is output to the servo unit 20 to control the tape to be rewound from the point where the current recording is completed (step 104).

According to the rewind control, the A / C (Audio Control) head 10 picks up the control pulses recorded on the control track of the tape (not shown) and converts them into electrical signals to convert the next servo unit 20. ) The servo unit 2 shapes and outputs the control pulse signal applied to the square wave so that the microcomputer 30 can recognize it.

The microcomputer 30 starts counting the number of control pulses applied (step 105). This counting operation is continued until the first point of the tape is detected by the start sensor (not shown) (steps 106 and 107). When the first point of the tape is detected, the microcomputer 30 matches the value counted so far with the number of the already stored tape and stores it in the predetermined area (step 108).

After the stored recording position is stored, recording position search control for recording new information is performed as follows.

When the recording position search key is controlled through the remote control transmitter 60 (step 110), the microcomputer 30 displays a control signal such that a screen for selecting the number of the tape currently mounted by the on-screen display controller 40 is displayed. Output Accordingly, the on-screen display control unit 40 outputs the screen of the tape with the number already set as in the case of setting the tape number (step 111).

The user selects the number of the corresponding TFP by using the remote control transmitter 60 by referring to the displayed screen (step 112). The microcomputer 30 searches for the count number of the control pulse matched with the tape of the selected number and stores it in a predetermined register (step 113). Then, after outputting the control signal to the servo unit 20 to control the tape in the rewind direction (step 114), when the first point of the tape is detected, the control signal is output so that the tape returns to the forward direction again. Step 117).

The control signal picked up through the A / C head 10 from the control track of the tape as in the recording of the recording position while being controlled forward is applied to the microcomputer 30 through the servo unit 20. The microcomputer 30 counts the pulses applied from the servo unit 20 in the same manner as in the recording position storage (step 118). The counted value is then compared with the count value stored in the above-described predetermined register (step 119). When the input count value is compared with the pre-stored count value and the value is the same, the control signal is output to the servo unit 20 to control forward movement of the tape. Therefore, the recording of the newly applied signal is performed from this point. The recording mode is performed when the user controls the recording mode through the remote control transmitter 60 after the recording position searching operation is completed.

The method using the control pulse used in this embodiment can be used not only for recording position storage and searching as described above, but also for arbitrary tape positioning and searching. In addition, the screen displayed for the numbering and selection of the tape may not only be on-screen but also may use display means such as a digitron.

As described above, the present invention has an advantage that the recording mode control can be easily performed by storing the recording completion time of all programs and automatically searching for the recording completion time when recording a new program.

Claims (3)

A magnetic tape recording and reproducing apparatus which assigns a predetermined number to a recorded tape, counts the control pulses from the recording completion point of the tape to which the predetermined number is designated to before the first start, matches the tape number, and stores the counted control pulses. In the method of searching for the final recording completion point of the magnetic tape, the process of selecting the number of the currently loaded tape by a predetermined recording position search command, the control pulse matched and recorded on the tape of the selected number And after reading the count value of the tape, comparing the count value of the control pulse input when the tape is shifted, and determining the magnetic tape position as the final writing completion point when the comparison value is the same. Recording position memory and search method characterized in that. The recording position storage and retrieval method according to claim 1, wherein the tape number selection process selects by referring to a screen on which a predetermined serial number is displayed. A recording position memory and retrieval apparatus for storing a final recording point and searching for the stored final recording point, comprising: a control head for picking up a control pulse recorded on a magnetic tape; and a servo unit for shaping the picked up control pulse. And a command applying unit for applying a final recording position memory and a final recording position search command, and when the final recording position memory command is applied, the standardized control from a predetermined number of the magnetic tape and a recording completion point of the magnetic tape to the first point. The number of pulses is counted and stored. When the final recording position search command is applied, the recording completion position is compared by comparing the predetermined number of the stored magnetic tape with the control pulse count value stored in correspondence with the predetermined number and the count value output during playback. Microcomputer to search for, when the commands are applied from the command application unit, An on-screen display control unit for controlling an on-screen display unit controlled by a microcomputer and displaying a predetermined serial number to facilitate designation or selection of the number of the magnetic tape; Navigation device.