Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Reexamination Certificate
1997-03-21
2001-05-29
Chevalier, Robert (Department: 2615)
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
C386S349000
Reexamination Certificate
active
06240242
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a recording apparatus and, more particularly, to an apparatus capable of recording moving and still images.
2. Related Background Art
A digital VTR has conventionally been known as an apparatus for recording video data and audio data as digital data on a magnetic tape and reproducing them. In such a digital VTR, image data of one frame in reproduced moving image data is stored in a memory, and output as a still image by repeatedly reading out the image data of one frame. At this time, the image data of one frame may not be properly reproduced due to an error of the reproduced data or a dropout.
To obtain a fine still image also in this VTR, there is considered a method of repeatedly reading out image data of the same frame stored in a memory in recording, and recording the data on a tape for several seconds, thereby recording the image data as a still image.
When a large number of still images are recorded as moving images on a tape in this manner, the large number of still images must be retrieved.
For this purpose, when a still image is recorded in the digital VTR, a flag indicating that the still image is recorded is recorded together with image data. In reproduction, the still image is retrieved using this flag.
If, however, halfway recording is performed with respect to a tape recording moving and still images in this manner, a still image recorded at the start portion of halfway recording, or a flag for retrieving the still image may be undesirably erased.
SUMMARY OF THE INVENTION
It is an object of the present invention to solve the above-described problem.
It is another object of the present invention to enable proper retrieval of a still image even if halfway recording is performed when moving and still images can be recorded.
To achieve these objects, according to one aspect of the present invention, there is provided a recording apparatus comprising recording means for recording image data on a recording medium, detection means for detecting whether a still image is recorded at a recording start position of the image data of the recording medium, and control means for controlling the recording means in accordance with a detection result of the detection means so as to record the image data in an area subsequent to an area of the recording medium in which the still image is recorded.
The above and other objects, and features, and advantages of the present invention will be apparent from the following description of the preferred embodiments in conjunction with the accompanying drawings.
REFERENCES:
patent: 4544960 (1985-10-01), Konishi
patent: 5027214 (1991-06-01), Fujimori
patent: 5202798 (1993-04-01), Takei et al.
patent: 5585934 (1996-12-01), Yoshimura et al.
Canon Kabushiki Kaisha
Chevalier Robert
Fitzpatrick ,Cella, Harper & Scinto
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