Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Reexamination Certificate
1999-05-26
2001-10-09
Chevalier, Robert (Department: 2615)
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
C386S349000
Reexamination Certificate
active
06301431
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a reproducing apparatus for reproducing information signals such as an audio signal, a video signal, etc., recorded in a plurality of recording blocks within storing means such as a magnetic disc or the like.
2. Description of the Related Art
Heretofore, on the magnetic disc from which the signal record is to be reproduced by the apparatus of the above stated kind, a video signal and an audio signal are recorded on one and the same disc in a commingled state. Meanwhile, for reproduction of the recorded audio signal, some control data is also recorded along with the audio signal in each audio signal recording track. The audio signal recording track can be any of the tracks available on the disc as there is no particular restrictions on the selection of the audio recording track.
In reproducing a record from the disc on which the video and audio signals are recorded in a commingled state, however, if the reproducing apparatus is arranged to be capable of reproducing nothing else but the video signal and if any RF signal is recorded in a track, the apparatus considers it to be a recorded track. In that event, the apparatus demodulates the reproduced RF signal by a reproduction processing circuit and supplies it to a monitor. Then, when an audio signal is reproduced from an audio signal recording track under such a condition, the reproduced audio signal becomes hardly acceptable.
SUMMARY OF THE INVENTION
It is an object of this invention to provide a reproducing apparatus which solves the above stated problem of the prior art and is arranged to be capable of reproducing a video signal from a record bearing medium without being affected by any signal other than the video signal in case that the video signal is recorded together with other signals on the same recording medium.
It is another object of the invention to provide a reproducing apparatus which is arranged to preclude any signal other than a video signal from being reproduced by mistake on a monitor.
Under this object, a reproducing apparatus arranged according to this invention as a preferred embodiment thereof to reproduce signals from a plurality of blocks formed on a record bearing medium having a video signal and other signals recorded there comprises: discriminating means for discriminating the signals recorded within the blocks by making a discrimination at least between a video signal and other signals; storing means for storing the result of the discrimination made by the discriminating means; reproducing means for selectively reproducing signals from the blocks on the basis of data obtained from the storing means; and display means which, in the event of that the signal recorded in each block is found to be not a video signal, makes a display showing the finding on a monitor.
It is a further object of the invention to provide a reproducing apparatus which, in reproducing a video signal while changing the reproducing position thereof on a record bearing medium from one position over to another, is capable of adequately accomplishing reproduction without being affected by signals other than the video signal.
Under that object, a reproducing apparatus embodying this invention as a preferred embodiment thereof for reproducing signals from a record bearing medium on which video and audio signals are recorded in a commingled state is provided with an operation part which instructs for a renewal of a reproducing position; and is arranged to reproduce the audio signal after detecting that no instruction is made for a change in the reproducing position, so that audio signal record bearing blocks can be skipped without reproducing the audio signal during the so-called fast-feed reproduction.
It is a further object of the invention to provide a reproducing apparatus which is capable of reproducing a video signal and an information signal related to the video signal in an adequately combined state from a record bearing medium on which they are recorded in a commingled state.
It is a still further object of the invention to provide a reproducing apparatus which is capable of reproducing a video signal and an audio signal related to the video signal in an adequate sequence from a record bearing medium on which they are recorded in a commingled state.
Under this object, a reproducing apparatus embodying the invention as a preferred embodiment thereof for reproducing signals from a record bearing medium having a video signal record together with a record of sequences of sounds represented by an audio signal which continues timewise straddling a plurality of recording tracks is arranged to have the following functions, in case where the medium bears a plurality of sound or audio signal sequences: A function in which reproduction is serially performed for each audio signal sequence according to the track number assigned to the first track of each of these sequences; and another function in which reproduction is serially performed according to a video signal recording track corresponding to the first audio signal record track of each audio signal sequence.
It is a further object of the invention to provide a reproducing apparatus which is capable of selecting one of different reproducing orders as desired.
Other objects and features of the invention will become apparent from the following detailed description of embodiments thereof taken in connection with the accompanying drawings.
REFERENCES:
patent: 4777537 (1988-10-01), Ueno et al.
Horii Hiroyuki
Ogawa Masahiko
Suzuki Yasutomo
Takahashi Hirokazu
Yamagata Shigeo
Canon Kabushiki Kaisha
Chevalier Robert
Robin Blecker & Daley
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