JPH04252447A - Control method for reproduction speed - Google Patents

Abstract

PURPOSE:To automatically control the reproduction speed of an audio signal and/or video signal recorded on a recording medium corresponding to the following status of input to reproducing information and the input speed of an operator. CONSTITUTION:The operator starts document input work to input a document from an input part 3 to a word processor by reproducing a recording tape at a reproduction circuit 1 while listening to the reproducing sound of the tape from an output part 2. Thereby, a detection circuit 4 detects the input speed of the document by the operator to the input part 3, and automatically controls the reproduction speed at the reproduction circuit 1 so as to be proportional to detected input speed within a range set in advance.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention comprises a variable playback speed playback circuit for playing back an audio signal, a video signal, or an audio signal and a video signal recorded on a recording medium, and an output section for outputting the playback signal. The present invention relates to a method of controlling playback speed in a playback device.

0002

[Prior Art] As a work using this type of reproducing device,
Document input work involves playing back a recording tape and listening to the playback audio while inputting text into a word processor from an input section such as a keyboard, playing back a videotape, movie film, etc. There is data input work, in which data is input into a computer from an input unit such as a keyboard for processing such as various statistics and analysis while looking at the screen.

0003

[Problems to be Solved by the Invention] The work using the conventional playback device described above involves pausing the playback depending on the tracking status of the input to the playback audio and playback video, and the input speed of the operator. There was a drawback that the process had to be performed while rewinding etc.

An object of the present invention is to solve the above-mentioned drawbacks of the prior art, and to provide a playback speed control system that automatically controls the playback speed according to the following status of input to playback information and the input speed of the operator. The objective is to provide a control method.

[0005]

[Means for Solving the Problems] A playback speed control method of the present invention detects the start/end of input from an input section for inputting information regarding a playback signal and the input speed, and detects the input speed during input from the input section. The playback speed is controlled within a preset range so as to be proportional to the detected input speed.

[0006]

[Operation] The playback speed is automatically controlled in proportion to the input speed of the operator, and if the input speed is slow, the playback speed is automatically slowed down, so it is possible to input documents in a word processor,
Data input to a computer, etc. can be easily performed regardless of the skill of the operator.

[0007]

Embodiments Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

The reproducing circuit 1 reproduces the audio signal (analog signal) recorded on the recording tape, and the detecting circuit 4
It has the ability to change the playback speed according to instructions. The output section 2 is, for example, a speaker, and has a function of outputting a reproduction signal. The input unit 3 is, for example, a keyboard, and has a function of inputting information regarding the reproduced signal. The detection circuit 4 detects the start/end of input at the input section 3 and the input speed, and during the input from the input section 3, the playback speed is within a preset range.
It has a function of instructing the reproducing circuit 1 to reproduce the speed in proportion to the input speed detected by the detection circuit 4.

An operator starts a document input operation in which a recording tape is played back by the playback circuit 1, and a document is inputted from the input unit 3 into a word processor (not shown) while listening to the reproduced audio from the output unit 2. Then, the detection circuit 4 detects the input speed of the document into the input section 3 by the operator, and automatically changes the reproduction speed in the reproduction circuit 1 so that it is proportional to the detected input speed within a preset range. control. Therefore, if the input speed is slow, the playback speed is automatically slowed down, so document input can be easily performed regardless of the skill of the operator.

Note that the reproducing circuit 1 may convert a digital signal recorded on a storage medium and reproduce and output the converted signal, and the input section 3 may be a handwritten character input device.

[0012] The present invention provides an input unit 3 for processing data such as various statistics and analyzes while playing back a video tape, movie film, etc. and listening to the playback audio or watching the playback video.
It can also be applied to data input work such as inputting data into a computer.

[0013]

As explained above, the present invention detects the start/end of input from the input section and the input speed, and keeps the playback speed within a preset range while inputting from the input section. By controlling the playback speed so that it is proportional to the entered input speed, that is, by automatically controlling the playback speed according to the input tracking status of the playback information and the input speed of the operator, the operator can pause the playback. There is no need to read or rewind the tape or the like, and if the input speed of the operator is slow, the playback speed is automatically slowed down, so there is an effect that input can be easily performed regardless of the skill of the operator.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention.

[Explanation of symbols]

1 Regeneration circuit 2 Output section 3 Input section 4 Detection circuit

Claims (1)

[Claims] Claim 1: A reproducing apparatus comprising a variable playback speed reproducing circuit for reproducing an audio signal, a video signal, or an audio signal and a video signal recorded on a recording medium, and an output section for outputting the reproduced signal. The start/end and input speed of input from an input section for inputting information regarding a signal are detected, and the playback speed is controlled during input from the input section.
A playback speed control method that controls the playback speed so that it is proportional to the detected input speed within a preset range.