JP2725306B2 - Magnetic recording device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording apparatus capable of recording an apparatus identification number and recording date and time on a recording medium.

2. Description of the Related Art In recent years, the penetration rate of VTR video software has been increasing. In such a situation, the video software maker attaches an identification number to the case so as to know later on which device the video software was recorded in order to ensure the quality and the like.

Hereinafter, an example of the above-described magnetic recording device will be described with reference to the drawings. FIG. 2 shows a conventional video software recording apparatus identification method.

Reference numeral 9 denotes a video cassette case, and reference numeral 10 denotes an identification number seal. The recorded video tape was used for recording
A VTR identification number sticker is attached as shown in FIG.

Problems to be Solved by the Invention However, in the above-described configuration, the management of the VTR and the identification number seal is difficult, and it takes time and effort to attach the seal, and the problem that the seal comes off while being used. Had.

In view of the above problems, the present invention provides a magnetic recording apparatus in which a VTR identification number is superimposed as a video character signal before, after, or during a video blanking period, and is recorded for a few seconds at the beginning of the tape. Is provided.

Means for Solving the Problems In order to solve the above problems, a magnetic recording apparatus of the present invention comprises: an input section for inputting an identification number of the apparatus; input determination means for determining the input as an identification number; A memory for storing the identification number in the nonvolatile memory, a power recovery detection unit for detecting an operation start of the device, and a reading unit for reading the identification number from the nonvolatile memory when the operation starts. A character superimposing circuit that converts the input or read identification number into a video character signal, and superimposes the video signal on a video signal, and a superimposition control unit that controls the character superimposition circuit with a recording start signal. At any time, the identification number is superimposed and recorded as a video character signal before, after or during the vertical blanking period of the video. It is provided with.

According to the present invention, with the above-described configuration, the identification number is set only once, and every time recording is performed on the video cassette tape, the identification number is automatically reproduced as a video character signal within a few seconds from the beginning of the tape. Can be recorded in a location that can hardly be seen on a home TV, and the characteristics of the video cassette tape (which device was recorded when) can be easily retained. Thus, the relationship between the device and the video tape can be easily managed.

Embodiment Hereinafter, a magnetic recording device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a SW input unit for inputting an identification number, and 2 denotes a nonvolatile memory for storing the input identification number. A character superimposing circuit 3 superimposes an input or read identification number as a video character signal on a video signal to be recorded. 4 is the above 1,2,3
Is a control device, 41 is an input determination means,
42 is writing means, 43 is reading means, 44
Is a character superimposition control means, and 45 is a power recovery detection means. Reference numeral 5 denotes an input video signal to be recorded, 6 denotes a video signal to be actually recorded, and 7 denotes a video recording unit. 8 is a recording start signal.

The following describes the magnetic recording device configured as described above.
The operation will be described with reference to FIG.

First, data input from the SW input unit 1 is transmitted to the control device 4
Is input as identification number data by the input determination means 41. The identification number data is written into the nonvolatile memory 2 by the writing means 42. Further, when the apparatus starts operating by supplying power, the power recovery is detected by the power recovery detecting means 45, and the non-volatile memory 2 is read by the reading means 43.
And reads the identification number data from. Said input,
Alternatively, the identification number data read from the non-volatile memory is input to a character start control
44 controls the character superimposing circuit 3 so that the identification number data is superimposed as a video character signal for a certain time immediately after the vertical blanking of the input video signal 5. The video signal 6 on which the character data is superimposed is recorded on a magnetic tape by the video recording unit 7.

As described above, according to the present embodiment, at the start of operation, the identification number previously input and held from the nonvolatile memory is read from the nonvolatile memory, the identification number is converted into a video character signal, and any Time, by superimposing and recording the identification number as a video character signal immediately after the vertical blanking period of the video, only once to set the identification number, every time recording on a video cassette tape,
The identification number is automatically recorded as a video character signal in the first few seconds of the tape, and it can be recorded at a position where it can hardly be seen on a home TV even if it is played back later. (Where it was recorded and when). By slightly shifting the vertical synchronization adjustment during reproduction, the relationship between the apparatus and the video tape can be easily managed by viewing the video character signal recorded as described above.

In addition to the above-described embodiment, the identification number may be superimposed and recorded as a video character signal immediately before the vertical blanking period of the video, or may be superimposed as a video character signal within the vertical blanking period of the video. The same applies to the case of recording by recording, and the case of superimposing and recording as a video character signal immediately after the horizontal synchronizing signal of the video. Furthermore, when combining these and recording superimposedly as a video character signal before and after the vertical blanking period of the video, or when superimposing and recording as a video character signal after the horizontal synchronization signal before and after the vertical blanking period of the video, the same applies. Can be implemented.
In the above embodiment, the identification number is recorded at an arbitrary time at the beginning of the tape.However, when recording at an arbitrary time interval, or when recording the recording date and time in addition to the identification number, Can be implemented in the same manner.

Effects of the Invention As described above, according to the present invention, an input unit for inputting an identification number of an apparatus, input determination means for determining the input identification number, a non-volatile memory holding the identification number, and Writing means for writing to the non-volatile memory, power recovery detection means for detecting the start of operation of the device, read means for reading the identification number from the non-volatile memory at the start of operation, and the input or read identification number It has a character superimposing circuit that converts it into a video character signal and superimposes it on the video signal, and superimposition control means that controls the character superimposition circuit by a recording start signal. By superimposing and recording as a video character signal before, after or during the blanking period, it is only necessary to set the identification number once,
Every time a tape is recorded on a video cassette tape, the identification number can be automatically recorded as a video character signal for a few seconds at the beginning of the tape. It is possible to easily retain the identity of the video cassette tape (which device and when it was recorded). Thus, an excellent effect that the relationship between the apparatus and the video tape can be easily managed can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a perspective view showing a conventional video software recording apparatus identification method. 1 ... SW input section, 2 ... Non-volatile memory, 3 ... Character superimposition circuit, 4 ... Control device, 5 ... Input video signal, 6 ... Recorded video signal, 7 ... Video recording section.

Claims (6)

(57) [Claims] 1. An input unit for inputting an identification number of an apparatus, an input determination unit for determining the input as an identification number, a nonvolatile memory for holding the identification number, and a writing unit for writing the identification number in the nonvolatile memory Power supply recovery detecting means for detecting the start of operation of the device, reading means for reading the identification number from the nonvolatile memory at the start of the operation, and converting the input or read identification number into a video character signal, A character superimposing circuit for superimposing on the video signal, and superimposing control means for controlling the character superimposing circuit by a recording start signal, any time from the start of recording, the identification number immediately after the vertical blanking period of the video, A magnetic recording apparatus characterized by superimposing and recording a video character signal immediately before or during the period. 2. An input unit for inputting an identification number of an apparatus, input determination means for determining the input as an identification number, a nonvolatile memory for holding the identification number, and a writing means for writing the identification number in the nonvolatile memory Power recovery detection means for detecting the start of operation of the apparatus, reading means for reading the identification number from the nonvolatile memory at the start of the operation, and converting the input or read identification number into a video character signal. A character superimposing circuit for superimposing on the video signal, and superimposing control means for controlling the character superimposing circuit by a recording start signal. A magnetic recording apparatus, which superimposes and records as a video character signal on a recording medium. 3. The magnetic recording apparatus according to claim 1, wherein the identification number is superimposed and recorded as a video character signal immediately before and after a vertical blanking period of the video at an arbitrary time from the start of recording. . 4. A video character signal according to claim 3, wherein said identification number is superimposed and recorded as a video character signal at an arbitrary time from the start of recording, immediately before and after a vertical blanking period of a video and after a horizontal synchronization signal. Magnetic recording device. 5. The recording method according to claim 1, wherein during the start of recording, the identification number is superimposed and recorded as a video character signal immediately before, immediately after, or during the vertical blanking period of the video at an arbitrary time interval. Magnetic recording device. 6. The magnetic recording apparatus according to claim 1, wherein the identification number and the recorded date and time are recorded as a video character signal at an arbitrary time from the start of recording.