Sound recording system for electronic still camera
First Claim
1. A sound recording method for an electronic still camera which shoots a scene to record video signals indicative of still images of the scene time-serially on a recording medium, comprising the steps of:
- constantly delaying sequentially input, time-serial audio signals by a predetermined period of time; and
sequentially recording the delayed audio signals on the recording medium in response to the shooting, whereby sound is recorded on the recording medium starting from an instant which is precedent to the instant of the shooting by the predetermined period of time.
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Accused Products
Abstract
Sound associated with a scene which a still camera shot is picked up over a desired period of time starting from the instant which is a given time before the instant of depression of a release button of the camera. A shift register serves as a delay element for delaying an input time-serial digitized audio signal by the desired period of time, before the audio signal is written into an audio track of a magnetic disc which also has a video track for storing a video signal associated with the audio signal. During reproduction, one may hear the sound through a loudspeaker while watching the still picture displayed on a CRT or the like. The same sound may be reproduced repeatedly over a desired period of time.
116 Citations
17 Claims
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1. A sound recording method for an electronic still camera which shoots a scene to record video signals indicative of still images of the scene time-serially on a recording medium, comprising the steps of:
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constantly delaying sequentially input, time-serial audio signals by a predetermined period of time; and sequentially recording the delayed audio signals on the recording medium in response to the shooting, whereby sound is recorded on the recording medium starting from an instant which is precedent to the instant of the shooting by the predetermined period of time. - View Dependent Claims (2)
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3. A sound recording apparatus for an electronic still camera which shoots a scene to record video signals indicative of still images of the scene time-serially on a recording medium, comprising:
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a delay circuit for delaying input audio signals by a predetermined period of time; sound recording means for recording an output of the delay circuit on the recording medium; and a control circuit for supplying the sound recording means with an output of the delay circuit in response to the shooting, whereby sound is recorded on the recording medium starting from an instant which is precedent to the instant of the shooting by the predetermined period of time. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10)
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11. A sound reproducing apparatus for an electronic still camera for reproducing, together with a video signal indicative of a still image, an audio signal which is recorded on a rotary recording medium in association with the video signal, comprising:
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drive means for driving the rotary recording medium at a predetermined rotation speed which is appropriate for the reproduction of the still image; reading means for reading out of the rotary recording medium an audio signal associated with a video signal which is reproduced from the recording medium; storage means for temporarily storing a unit recording amount of the audio signal read out from the recording medium by the reading means; - View Dependent Claims (13, 14, 16, 17)
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12. reproducing means for reproducing as audible sound the audio signal output from the storage means;
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a control circuit for causing an audio signal to be read out of the storage means at a rate appropriate for audio signal reproduction in response to the audio signal being stored in the storage means, whereby sound associated with a still image which is in reproduction is reproduced from the reproducing means. - View Dependent Claims (15)
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Specification