JPH04205855A - Magnetic recording apparatus - Google Patents

Abstract

PURPOSE:To eliminate that information on a date and time is recorded so as not to constitute an obstacle on a screen by a method wherein the information on the date and time is recorded automatically on a tape only for a certain time at a first videotaping operation for a day or at a first videotaping operation after a tape is replaced. CONSTITUTION:A flag indicating whether a first videotaping operation for a day or a first videotaping operation after a tape replacement operation has been performed is stored in a memory 8. The videotaping operation of a date and time is controlled on the basis of the flag. That is to say, an image signal to which information on the date and time is added is converted into a recording signal at a recording-system circuit 5 by the control operation of a system control microcomputer 2 and is recorded on a magnetic tape. However, an OSD (on-screen display) control circuit 7 measures the time from the start of the videotaping operation and controls to stop the addition of the information on the date and time to the image signal in a certain time. As a result, the information on the date and time is recorded on the magnetic tape only for a certain time at the first videotaping operation for a day or at the first videotaping operation after the tape replacement operation. Thereby, it is possible to eliminate that the information on the date and time is recorded forever so as not to constitute an obstacle on a screen.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic recording device, and particularly to conditions for copying dust of dates and times.

[Conventional technology]

The conventional video camera was released by Video Salon, October 1986.
Monthly issue, published by Genkosha ``y i d e o 8 PRO
As described on pages J44 to J49, the camera had a date and time imprinting function that recorded the date and time of shooting with a single touch by incorporating a memory that stored a calendar into the video camera body. . This has been considered a very useful feature when recording children's growth or photographing events.

This will be explained using the conventional example shown in FIG. First, operation button 1
This instructs the system control microcomputer 2 to imprint the date and time. The system control microcomputer 2 controls the O3D circuit 3 to add the date and time information from the timer circuit 6 to the video signal from the camera section 4. The timer circuit 6 counts time and has date and time information. The video signal to which the date and time information has been added is converted into a recording signal by a recording system circuit 5 under the control of the system control microcomputer 2, and is recorded on a magnetic tape (not shown).

[Problem to be solved by the invention]

In the above-mentioned conventional technology, in order to record the date and time, a predetermined button must be pressed to enter the date and time imprinting state, and in order to stop recording.

Furthermore, it was necessary to press a predetermined button to cancel the imprinting state. For this reason, in many cases, the user is limited to either imprinting from the beginning to the end of the photograph, or not imprinting at all.

An object of the present invention is to automatically imprint the date, time, etc. of the shooting for a certain period of time at the beginning of the recording when taking the first shot of the day or when taking the first shot after replacing the tape. .

[Means to solve the problem]

The above purpose can be achieved by storing in memory a flag indicating whether this is the first shooting of the day or the first shooting after replacing the tape, and controlling the imprinting of the date and time based on that flag. .

[Effect]

The system control microcomputer controls the recording circuit, ○5D (ON 5CREEND DISPLAY) based on information from the operation buttons.
) control the control circuit. The timer circuit has date and time information and provides this information to the 080 circuit and the SD control circuit. The SD control circuit controls the SD circuit using the system control circuit, timer circuit, and memory information. The memory remembers whether it is the first recording of the day or the first recording after a tape change. ○The SD circuit adds the date and time information from the timer circuit to the video signal from the camera section and outputs it to the recording system circuit. The recording circuit converts the input signal into a recording signal and records it on the magnetic tape.

〔Example〕

An embodiment of the present invention will be described with reference to FIG. An O5D control circuit and memory are added to the conventional example. first,
The operation button 1 instructs the system control microcomputer 2 to record. The system control microcomputer 2 notifies the SD control circuit 7 to enter the recording state. The SD control circuit 7 controls the data in the memory 8 based on the date and time information from the timer circuit 6 and the control signals (recording and tape retrieval) from the system control microcomputer 2. The initial state of the data in the memory 8 is di 1 '1, 0011 when recording has been performed, and ``1'' when the date has changed or only tape retrieval has been performed. In other words, until the first recording of the day is performed or after the tape is replaced and the first recording is performed, it becomes '0' after - degree recording is performed.The O8D control circuit 7 is The date and time information of the timer circuit 6 is controlled to be added to the video signal from the camera section 4 only when the data in the memory 8 is 111 PI.

The video signal to which the date and time information has been added is converted into a recording signal by a recording system circuit 5 under the control of the system control microcomputer 2, and is recorded on a magnetic tape (not shown). however.

The SD control circuit 7 measures the time from the start of recording and controls to stop adding date and time information to the video signal at a certain time.

For this reason, date and time information is recorded on the magnetic tape only for a certain period of time at the time of the first recording of the day or the first recording after replacing the tape.

In this embodiment, the O8D control circuit and memory are provided separately from the timer circuit, but both can be realized by software, or can be integrated into one chip by using a microcomputer together with the timer circuit.

〔Effect of the invention〕

According to the present invention, the date and time information can be automatically recorded on the tape only for a certain period of time for the first recording of the day or the first recording after replacing the tape, and the date and time information is recorded forever, so that the screen It is possible to prevent the harmful effect of getting in the way.

This is useful for recording children's growth, photographing events, etc. because it allows you to record the original purpose of date and time information every time the date changes or the tape is replaced.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the present invention, and FIG. 2 is a block diagram of a conventional example. 1...operation button, 2...system control microcomputer. 3...○SD circuit, 4...camera part. 5-recording circuit, 6... timer circuit. 7...○SD control circuit, 8...Memory. Procedural amendment (voluntary)

Claims (1)

[Claims] 1. When making the first recording of the day or the first recording after replacing the tape in a magnetic recording device that has the function of recording the date, time, etc. of recording on magnetic tape, a certain period of time is automatically inserted at the beginning of recording. A magnetic recording device characterized by being provided with a circuit for recording recording date, time, etc.