JPH01196980A - Synchronizing system between moving picture and picture of other medium - Google Patents

Abstract

PURPOSE:To synchronize other signal with a moving picture signal automatically through the transmission of the moving picture signal only and to output the result by inserting selection information to a part other than a video signal in the moving picture signal and using the information so as to synchronize the other signal with the moving picture signal and outputting the result. CONSTITUTION:A selection information detection section 4 detects a position in the moving picture signal sent from a moving picture signal source 1 where the selection information is inserted, the selection information is fetched and sent to a selection information decoding section 5. The decoding section 5 decodes the selection information and a still picture access section 6 sends the information required to access the still picture signal source 2 to the still picture access section 6, and the access section 6 accesses the still picture signal source 2 to extract the corresponding still picture signal and to send it to a pattern synthesis section 8. The section 8 synthesizes the moving picture signal inputted from the moving picture signal source 1 with the still picture signal inputted from the still picture signal source 2 according to the synchronizing pulse from a vertical/horizontal synchronizing signal detection section 7 and sends the result externally. Thus, the other signal is outputted while it is synchronized with the moving picture signal automatically.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical field to which the invention pertains) The present invention relates to a synchronization method for moving images and other media, which synchronizes other signals with a moving image signal.

(Prior Art) Conventionally, methods for synchronizing and outputting video signals with other signals include recording and displaying still image signals such as character information on video signals in advance, or There is a method of recording and outputting audio along with the video while watching the video.

However, with this method, input of other signals that should be synchronized with the video must always follow the video signal, making it difficult to record the video signal that should be synchronized and other signals independently. There was a problem.

Furthermore, even if they are recorded independently, in order to synchronize them and output them, it takes time and effort for a person to output other signals at the same time while watching them on a monitor. Furthermore, after the first recording, the timing of synchronization between the video signal and other signals can be changed.

There is a problem in that it is not easy to change still images, audio, etc. to be synchronized.

(Objective of the Invention) The present invention solves the above-mentioned problems, automatically outputs other signals in synchronization with the video signal, and outputs other signals in synchronization with the video signal. The purpose of this is to enable independent recording and free synchronization of recorded moving image signals and other signals.

(Structure of the Invention) (Characteristics of the Invention and Differences from the Prior Art) The present invention provides a method for selecting and outputting other signals in a portion of a video signal other than the video signal in synchronization with the video signal. Selection information is inserted in advance, and using this selection information, other signals such as still images and audio whose signal sources are different from the video signal are selected.
The main feature is that the output is synchronized with the video signal.

In the conventional technology, other signals that should be synchronized with the video signal follow the video signal, so it is difficult to record the video signal that should be synchronized and other signals independently, and even if they are recorded independently, In contrast to the troublesomeness of synchronously outputting these, which requires considerable effort, the present invention records independently,
The difference is that recorded video signals and other signals can be freely combined.

(Embodiment) FIG. 1 is a block diagram of an embodiment in which information for synchronizing a moving image and a still image is inserted within the vertical blanking period of the present invention, where 1 is a moving image signal source, 2 is a plurality of A still image signal source in which still images are recorded; 3 is a moving image/still image for synchronously synthesizing the still image signal recorded in the still image signal source 2 with the moving image signal sent from the moving image signal source 1; It is a synchronous control device.

Further, 4 in this device detects the position where selection information is inserted in the video signal sent from the video signal source 1,
A selection information detection unit that takes in the selection signal; 5 a selection information decoding unit; 6 a still image access unit that accesses the still image signal source 2 to select and extract still image signals to be synthesized; 7 a video signal Vertical synchronization signal and horizontal synchronization signal detection unit, 8
is a screen synthesis unit that synthesizes signals input from the video signal source 1 and the still image signal source 2 and sends the synthesized signal.

Further, FIG. 2 shows an example of the position where the selection information S is inserted in this embodiment. line)
is inserted for a predetermined time length (b 5ee) after a predetermined time has elapsed from the horizontal reference phase H (after a see).

To operate this, the selection information detection section 4 detects the position where selection information is inserted in the video signal sent from the video signal source 1, and captures the selection information. The position is detected by counting the vertical synchronizing pulse vP and the subsequent horizontal synchronizing pulse HP sent from the vertical/horizontal synchronizing signal detection section 7, and by measuring the time after receiving the horizontal synchronizing pulse.

The selection information detection section 4 sends the selection information S thus taken in to the selection information decoding section 5. The decoder 5 decodes the selection information and sends information necessary for the still image access section 6 to access the still image signal source 2 to the still image access section 6.

The access section 6 accesses the still image signal source 2 according to the information sent from the decoding section 5, extracts the corresponding still image signal, and sends it to the screen composition section 8. Then, the vertical/horizontal synchronization signal detection section 7 detects a vertical synchronization signal and a horizontal synchronization signal from the video signal, and sends the respective synchronization pulses to the selection information detection section 4, as well as detecting horizontal scanning lines and frames. In order to synthesize the moving image signal and still image signal while maintaining synchronization, a synchronization pulse is sent to the screen synthesis section 8.

This screen synthesis section 8 synthesizes the video signal input from the video signal source 1 and the still image signal input from the still image signal source 2 according to the synchronization pulse from the vertical/horizontal synchronization signal detection section 7, and sends it to the outside. do.

FIG. 3 is a block diagram of another embodiment of the present invention, in which the contents of the selection information S and still image signal source 2 are not changed.
This is an embodiment for easily changing still images to be synchronized. In the drawing, the same numerals and symbols as in FIG. The position where the selection information is inserted is the same as in FIG. 2.

The operation is the same as that of the embodiment shown in FIG. 1, except for the flow of information from the 1 selection information decoding section 5 to the still image access section 6. The selection information/still image correspondence unit 9 uses the information sent from the selection information decoding unit 5 to index the position information in the still image signal source 2 of the still image to be synchronized that is associated with the information, and uses the position information. It is sent to the still image access section 6. The index, that is, the information input to the selection information/still image correspondence section 9, is associated with the position information in the still image signal source 2 of the still image to be synchronized using a RAM (random access memory).
This can be achieved by creating a table in etc. The contents of the table can be rewritten using a program, etc., so just by rewriting the same contents, you can easily synchronize still images with videos without changing the contents of video signal source 1 and still image signal source 2. Can be changed.

The above two embodiments are examples for synchronizing a still image with a moving image, but by replacing the still image signal source 2 of these embodiments with, for example, an audio signal source, a character signal source, etc., it is possible to synchronize a still image with a moving image signal. 9 audio characters etc.

It is also possible to synchronize signals other than still images.

In addition, in the two embodiments, the video signal and the signal to be synchronized with it are combined and sent out as a single signal. , it is also possible to send it out as a separate output.

Furthermore, regarding the selection information, in addition to the method of determining the temporal position in advance and inserting it there as in the embodiment shown in FIG.
There is also a method of inserting a signal that can identify that the following signal is selection information before the selection information, and first detecting the signal to capture the selection information.

(Effects of the Invention) As explained above, in the present invention, selection information is inserted into a portion of a video signal other than the video signal, and thereby other signals are synchronized with the video signal and output. By simply sending out a signal, other signals can be automatically synchronized with the video signal and output. In addition, it is possible to record other signals that should be synchronized with the video signal independently of the video signal and on a separate recording device.
This has the advantage that it is easy to change the timing of synchronization between the video signal and other signals, and to easily set a free combination of the video signal and other signals to be synchronized.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention, FIG. 2 is a diagram showing an example of the insertion position of selection information, and FIG. 3 is a block diagram of another embodiment of the present invention. 1...Video signal source, 2...Still image signal source, 3.
. . . Video/still image synchronization control device, 4 . . . Selection information detection unit, 5 . . . Selection information decoding unit. 6... Still image access section, 7... Vertical/horizontal synchronization signal detection section, 8... Screen composition section, 9... Selection information
Still image support section. Patent applicant Nippon Telegraph and Telephone Corporation

Claims (1)

[Claims] In displaying a moving image, selection information for selecting and outputting another signal in synchronization with the moving image signal is inserted in advance into a portion of the moving image signal other than the video signal, and the selection information is used to distinguish between the moving image signal and the moving image signal. A method for synchronizing moving images and other media, characterized in that signals such as still images and audio from different signal sources are selected and output in synchronization with the moving image signal.