JPH03292654A - Recorder - Google Patents

Abstract

PURPOSE:To prevent misrecording by comparing a reserved recording time with a tape recordable time and giving a warning when the reserved recording time is longer. CONSTITUTION:A reserved recording time obtained from a recording commencement time and a recording finishing time of a timer reservation part 1 is compared with a tape recordable time obtained from a tape traveling residual amt. of a tape residual amt. calculating part 4 by a comparing part 3, and a warning is issued from a warning part 7 when the tape recordable time is smaller than the reserved recording time. Consequently, the warning is given when a video recording is to be cut halfway because the reserved recording time is longer than the tape recordable time. By this method, misrecording is prevented.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a recording device that can perform scheduled recording.

[Summary of the Invention] The present invention includes a timer reservation section, and in a recording device that performs scheduled recording based on the timer reservation section, tape recording is possible as determined from the reserved recording time determined by the timer reservation section and the remaining tape running amount. By issuing a warning when the reserved recording time is greater than the recorded time, it is possible to prevent recording errors such as not recording the end of the desired content.

[Prior Art] A VTR (video tape recorder), which is a recording device, has a so-called timer reservation function that allows automatic recording by setting the day of the week, speed mode, and time (start time and end time) in advance. There is.

However, if the recordable time of the tape is shorter than the reserved recording time, the end of the desired content will not be recorded.

Therefore, the present applicant has a remaining amount detection unit that detects the remaining amount of the tape and a means for detecting the remaining time of the timer, and compares the remaining amount of the tape with the remaining time of the timer during recording to determine the remaining amount of the tape. We previously proposed a recording device that automatically switches the speed mode to a slower speed mode when the
(See Publication No. 127).

[Problem to be Solved by the Invention] However, in the above recording device, if the slowest speed mode is selected from the beginning and recording is performed, the speed mode is not automatically switched and the recording is interrupted midway. There is. Furthermore, even if the video is recorded to the end, the speed mode is automatically changed and the video and sound quality are degraded, so it cannot be said that the recording state is in accordance with the user's wishes, and it cannot be said that this is a type of recording error. There isn't.

Therefore, the present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a recording apparatus that can prevent the above-mentioned recording errors.

[Means for Solving the Problems] A recording device of the present invention for solving the above problems includes a timer reservation section that can set a recording start time and a recording end time;
a tape remaining amount calculation section that calculates the remaining tape running amount; and a tape recording that is calculated from the reserved recording time obtained from the recording start time and recording end time of the timer reservation section and the tape running amount remaining of the tape remaining amount calculation section. The present invention is equipped with a comparison section that compares the available time with the available time, and a warning section that issues a warning when the comparison result of the comparison section indicates that the tape recordable time is smaller than the reserved recording time.

[Operation] Therefore, a warning is given when the reserved recording time is longer than the tape recordable time and the recording is cut off midway.

[Example Embodiments of the present invention will be described below with reference to the drawings.

An embodiment of the present invention is shown in FIGS. 1 and 2. FIG.

FIG. 1 is a circuit block diagram relating to a timer reservation function of a VTR, which is a recording device. In FIG. 1, a timer reservation section 1 has a timer, and can freely set recording start time, recording end time, etc.

When the recording start time comes, a recording start signal is outputted to the control section 6, and when the recording end time comes, a recording stop signal is outputted to the control section 6, and the recording start time and recording end time are outputted to the reserved recording time calculation section 2. The reserved recording time calculation section 2 calculates a reserved recording time (scheduled recording time) from the recording start time and the recording end time, and outputs this to the comparison section 3 as a digital value.

On the other hand, the remaining tape amount calculation section 4 has a frequency generator (FG) and a thickness detection sensor. The frequency generator is provided, for example, on the supply reel shaft, and outputs a frequency proportional to the rotational speed of the supply reel shaft. The thickness detection sensor is composed of a bush switch, and detects the thickness of the tape from the state of the thickness display section of the attached tape cassette. Then, the diameter of the outermost circumference of the tape is calculated from the output of the frequency generator, and together with the known diameter of the innermost circumference of the tape, the inner and outer diameters of the wound tape are determined. By adding the tape thickness information to this information, the tape length on the supply side can be calculated, and this tape remaining amount value is output to the tape recordable time calculation section 5. The tape recordable time calculation unit 5 is supplied with speed mode information, and calculates the tape recordable time (
(tape recordable time) is calculated and outputted to the comparator 3 as a digital value. Comparison section 3 compares the reserved recording time and tape recordable time, and outputs an H signal to control section 6 when the reserved recording time is large, and outputs an L signal when tape recordable time is large. When the timer reservation setting signal is output from the timer switch (not shown), the control unit 6 drives the reel motor (not shown) for a predetermined period of time (approximately 1 second) and then reads the output of the comparison unit 3. It's crowded. The drive of the reel motor is controlled so that it finally returns to its original position. comparison g13
When the output is an L signal, a timer reservation completion signal is output to a timer reservation display section (not shown), and when the output is an H signal, a warning signal is output to the warning section 7. The timer reservation display section lights up the pilot lamp when the timer reservation completion signal is output. The warning unit 7 has a pilot lamp that indicates a timer reservation failure, and when a warning signal is input, this pilot lamp lights up or blinks. Note that the warning section 7 may be of any type as long as it can indicate to the user that the timer reservation is defective, and may be configured to eject the tape cassette, for example.

Next, the case of timer reservation will be explained based on FIG. 2.

A recording start time, a recording end time, etc. are input into the timer reservation section 1, and a tape speed mode is selected. Next, the tape cassette is inserted into the VTR, and the tape is set to the recording start position by fast forwarding (FF) or reversing (REW). Then, when you set the timer reservation with the timer switch,
The tape is run for a predetermined amount of time. Tape remaining amount calculation unit 4
At this time, the output of the frequency generator and the output of the thickness detection sensor are taken in to calculate the remaining amount of tape. The reserved recording time calculation section 2 calculates the reserved time (A) from the output of the timer reservation section 1, the tape recording time calculation section 5 calculates the tape recordable time (B) from the output of the tape remaining amount calculation section 4, A comparison unit 3 compares both time data. If the output of the comparator 3 is an L signal, the pilot lamp of the timer reservation display section (not shown) lights up, indicating that the timer reservation has been completed. If the output of the comparison section 3 is an H signal, the pilot lamp of the warning section 7 lights up or blinks, and the user recognizes from this that the timer reservation is defective. Then, countermeasures such as replacing the tape cassette and changing the speed mode are taken, and the timer reservation is set again. When the pilot lamp of the timer reservation display section lights up, the process is completed.

In this embodiment, the tape remaining amount value is calculated by running the tape after the timer reservation setting is selected, but the remaining tape amount may be calculated at all times when the tape cassette is installed.

[Effects of the Invention] As described above, according to the present invention, when the reserved recording time determined by the timer reservation section is compared with the tape recordable time determined from the remaining amount of tape running, and the reserved recording time is larger. Since the system is configured to issue a warning, it is possible to always make appropriate timer reservations, which has the effect of preventing recording errors such as not recording the last part of the content desired to be recorded.

[Brief explanation of drawings]

1 and 2 show an embodiment of the present invention, with FIG. 1 being a circuit block diagram and FIG. 2 being a flowchart. l...Timer reservation section, 2...Tape remaining amount calculation section,
3... Comparison section, 7... Warning section.

Claims (1)

[Claims] (1) A timer reservation section that can set a recording start time and a recording end time, a tape remaining amount calculation section that calculates the remaining running amount of the tape, and a reservation record that is determined from the recording start time and recording end time of the timer reservation section. A comparison section that compares the time and the tape recordable time calculated from the remaining tape running amount of the tape remaining amount calculation section, and a warning when the comparison result of this comparison section is that the tape recordable time is smaller than the reserved recording time. A recording device characterized in that it is equipped with a warning section that performs a warning.