JPH043385A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To confirm a storage capacity between optional two points by providing a means for writing and reading a program searching signal on a magnetic tape and a means for measuring and displaying the storage capacity between the two program searching signals. CONSTITUTION:Upon a key input for operating a circuit of this device in an position of X, a mechanism is brought under the fast forward state to find a program searching signal (a) in a sequence of 1 2 4 5. A residual amt. A at this time is stored by a sequence of 1 2 3 5, and the mechanism is brought under the rewinding state. Then, when a program searching signal (b) is found after passing the (a)-point again, a residual amt. B is stored, and the mechanism is brought under the stopping state. In this case, a storage capacity between the (a)-point and the (b)-point is evaluated from a residual value of B - A, and a recording time corresponding to the present REC speed is displayed at a display part 6.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a magnetic recording/reproducing device.

(Summary of the Invention) The present invention improves the usability of a magnetic recording/reproducing device by making it possible to check the recording capacity between cue signals.

(Prior art) To take the example of a VTR, the recording time (remaining amount) from the current tape position to the end of the tape is measured,
The displayed type is a conventional and common type.

(Problem to be Solved by the Invention) However, in the case of a conventional VTR, the recording time until the end of the tape is displayed, and the recording time between arbitrary two points is not determined. The tape recorded in the order of (B) is empty, and the contents of (A) are no longer needed, so when I tried to newly record the contents of fc) in the amata part of (Al), It is not easy to check whether the contents of fcl fit into part A).

(Means for Solving the Problems) The present invention aims to eliminate the drawbacks of the above-mentioned prior art, and provides a means for writing and reading cue signals to and from a magnetic tape, and two cue signals. A means for measuring and displaying the recording capacity between output signals is provided.

(Function) The VTR configured as described above functions as follows.

That is, two arbitrarily recorded cue signals are searched by the cue signal detecting means, and the recording capacity between the two points is measured, calculated, and displayed.

[Example] The present invention will be described in detail below according to an example shown in the drawings.

In Figure 1, 1 is an input part that directly drives the magnetic tape, 2 is a sensor part that has various sensors for detecting the input and tape states, and 3 is a sensor part that uses information from the sensor part. , Take: Remaining amount measuring section that calculates and outputs the remaining amount,
・ζ is a cueing signal readout section that discriminates the cueing signal based on the information from the sensor part and outputs the information. 5 is a cueing signal reading part that performs calculations based on the information from each part and the mechanical part and A calculation/control unit 6 is used to control the display unit, and a display unit 6 is used to display results.

Next, the operation will be explained using the VTR configured as described above as an example. Note: In this example, the recording time is measured between the cue signals located at the closest positions before and after the current tape position, and the tape is brought to a 5-TOP position at the beginning of that section to end the recording. First, it is assumed that there is a key power required to operate this circuit at the position X in FIG. Then, the mechanism is put into a fast forward state, and the cue signal a is found through the flow of l→2→4→5. The remaining amount value A at this time is stored in the order of 1→2→3→5, and the mechanism is brought into a rewinding state. Next, if you pass point a again and find the cue signal, the remaining amount tmB
is memorized and the mechanism is stopped. At this time, the remaining amount B-
The recording capacity between points a and b is determined from A, and the recording time is displayed according to the current REC speed. In the flowchart of this example, when the tape end or tape start is found before the a-point or the 5-point, respectively, the results are displayed assuming that the section up to that point is to be measured.

(Effects of the Invention) Therefore, in the VTR according to the present invention, it is possible to easily check the recording capacity between any two pre-recorded cue signals.

[Brief explanation of drawings]

FIG. 1 shows a diagram of the main parts of the magnetic recording and reproducing apparatus of the present invention.
FIG. 2 is a flowchart of processing in the arithmetic/control unit, and FIG. 8 is a diagram showing the trajectory of the J-do to detection on the tape when detecting a cue signal recorded on the tape. DESCRIPTION OF SYMBOLS 1... Mechanical part, 2... Part of sensor, 8... Remaining amount measuring part, 4... Heading signal reading part, 5... Calculation/
Control unit, 6...Display unit. Figure 1 Agent Patent Attorney Ume 1) Masaru (2 others) Figure 3

Claims (1)

[Claims] 1. A means for writing and reading a cue signal on a magnetic tape, and a means for measuring and displaying the recording capacity between two cue signals, so that the recording capacity between any two points can be confirmed. magnetic recording and reproducing device.