JP3010680B2 - VTR device with instantaneous playback function using semiconductor storage device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a VTR with an instantaneous playback function using a semiconductor memory device.
The device has an instantaneous playback function using a semiconductor memory device that improves the response characteristics of video playback, especially to playback control.
Related to VTR equipment.

[Conventional technology]

In conventional VTR devices, V
Even if the start point of the TR device is specified and the tape is set as the start point, if VTR start control for starting the VTR device is received, it takes 0.1 to 2 seconds before the tape rotation of the VTR device starts. Therefore, it takes 0.1 to 2 seconds for the video from the start point to be reproduced.

For this reason, when a VTR device is used as an input material in a switcher or the like of a broadcasting station, a human performs a start control in advance and the tape of the VTR device starts rotating to reproduce the video, and then the video of the VTR device is reproduced by the switcher. Select the output. In addition, the operator presses the VT
When the R device is selected, the VTR start control is performed at that moment, the tape of the VTR device starts rotating, and the video is played.After that, in order to select that VTR at the actual cross point of the switcher Further, a circuit for delaying the actual cross point of the switcher to be turned on after the switcher input selection button is pressed by the switcher control hardware is provided.

[Problems to be solved by the invention]

In the above-described conventional VTR device, when a VTR device is used as an input material in a switcher or the like of a broadcasting station, it must be operated by two people, and when an operator selects a VTR with a switcher input selection button, There is a delay that the actual cross point of the switcher is turned on and a video is selected, so that the operation timing of the operator is difficult.

[Means for solving the problem]

VTR with instantaneous playback function using the semiconductor storage device of the present invention
The device is connected to the output of the VTR device, a semiconductor storage device that stores, reads and outputs image data recorded on the tape of the VTR device, and a tape of the VTR device when the start point of the VTR device is designated and controlled by a time code in advance. The start point is set and the image data from the start point of the tape is recorded in the semiconductor memory device for the time required for the start-up of the VTR device. And a control device for performing control for enabling reproduction of a video signal from a start point from the semiconductor memory device.

〔Example〕

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

FIG. 1 is a configuration diagram of one embodiment of the present invention. In the embodiment of FIG. 1, 1 is a VTR device, 2 is a semiconductor memory device,
3 is a control device for controlling the VTR device 1 and the semiconductor storage device 2, 4 is a video input terminal, 5 is a control input terminal, and 6 is a VTR.
Reference numeral 7 denotes a control output to the device 1, reference numeral 7 denotes a control output to the semiconductor memory device 2, reference numeral 8 denotes a video output, and reference numeral 9 denotes a video output terminal.

Next, the operation of the embodiment shown in FIG. 1 will be described. First, a VTR start point control signal based on a time code is given in advance via the control input terminal 5.
At this time, the control device 3 sends out the control output 6 for setting the tape of the VTR device 1 as a start point, and further transmits the image data of the tape of the VTR device 1 to the semiconductor storage device 2 for the time required for the VTR start. A control output 7 for recording from a point is sent out.

In this state, the tape of the VTR device 1 is set with a start point, and the image data of the tape is recorded in the semiconductor memory device 2 from the start point for a necessary time when the VTR device 1 starts.

Next, when a start control signal for starting the VTR device 1 is input to the control input terminal 5, the control device 3
The control output 6 is sent to start the VTR device 1 and to start the VTR device 1. At the same time, the control output device 7 controls to read image data from the start point stored in the semiconductor memory device 2 to the rise of the VTR device. Upon receiving the start control signal, the video data is output to the video output terminal 9 without delay, and then the video output 8 of the VTR device 1 is output to the video output terminal 9 via the semiconductor memory device 2 and thus the VTR device 1 The video reproduction including the video output up to the start of the tape rotation is automatically performed.

〔The invention's effect〕

As described above, according to the present invention, a semiconductor storage device is connected to the output of the VTR device, and the image data of the tape is recorded in the semiconductor storage device from the start point for the time required for starting the VTR device, By enabling the playback from the start point instantly when operating the VTR device, it is not necessary for two people to operate the VTR device as input material with a switcher or the like. Since there is no need to provide a delay from when the VTR is selected to when the actual cross point of the switcher is turned on, there is an effect that the setting of the operation timing by the operator can be significantly facilitated.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of one embodiment of the present invention. 1 VTR device, 2 semiconductor storage device, 3 control device, 4 video input terminal, 5 control input terminal, 6, 7
... Control output, 8 ... Video output, 9 ... Video output terminal.

Claims (1)

(57) [Claims] 1. A semiconductor memory device connected to an output of a VTR device for storing, reading and outputting image data recorded on a tape of the VTR device, and a semiconductor memory device for controlling a start point of the VTR device by a time code in advance. When the tape is set as the start point and the semiconductor memory device receives image data from the tape start point for the time required for the start-up of the VTR device for the time required to start the VTR device, and receives start control for operating the VTR device. A VTR device having an instantaneous reproduction function by a semiconductor storage device, comprising: a control device for performing control to enable instantaneous reproduction of a video signal from the semiconductor storage device from a start point.