Image recording/reproducing apparatus
First Claim
1. An apparatus for recording/reproducing program material including audio and video signals, comprising:
- a recording/reproducing device which records audio and video signals in a recording medium, and reproduces audio and video signals from a recording medium; and
a controller which controls said recording/reproducing device to skip over a recorded portion of said medium in which time intervals between changing points of said audio or video signals correspond to a predetermined time interval and occur at least two times consecutively, and to reproduce a recorded portion of said medium at a standard reproduction speed wherein only a single time interval between changing points corresponds to a predetermined time interval.
2 Assignments
0 Petitions
Accused Products
Abstract
A video recording/reproducing apparatus capable of discriminating commercial message portions even when a broadcasting mode is the same. A magnetic head records television broadcasting signals to a magnetic tape and reproduces the television broadcasting signals from this magnetic tape. When the television broadcasting signals are reduced by recording/reproducing apparatus, an audio-free portion detector detects audio-free portions from audio signals in the television broadcasting signals. Commercial message (CM) portion detector detects the commercial message portions in the television broadcasting signals by the time intervals among a plurality of audio-free portions detected by the audio-free portion detector, and a CM information memory circuit stores the information of the recording positions of the commercial message portions detected by this commercial message portion detector to the magnetic tape. When the television broadcasting signals are reproduced from the magnetic tape, reproduction is carried out while the commercial message portions are skipped, at the recording positions of the commercial message portions to the magnetic tape, on the basis of the information of the recording positions of the commercial message portions to the magnetic tape that are stored in the memory circuit.
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Citations
15 Claims
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1. An apparatus for recording/reproducing program material including audio and video signals, comprising:
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a recording/reproducing device which records audio and video signals in a recording medium, and reproduces audio and video signals from a recording medium; and a controller which controls said recording/reproducing device to skip over a recorded portion of said medium in which time intervals between changing points of said audio or video signals correspond to a predetermined time interval and occur at least two times consecutively, and to reproduce a recorded portion of said medium at a standard reproduction speed wherein only a single time interval between changing points corresponds to a predetermined time interval. - View Dependent Claims (2, 3, 4, 5)
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6. A method of reproducing audio and video signals, comprising:
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reproducing at a standard reproduction speed a portion of said medium where a time interval between changing points of said audio and video signals corresponds to a predetermined time interval, and occurs alone; and skipping over at a high reproduction speed a portion of said medium where time intervals between said changing points correspond to a predetermined time interval, and occur at least two times consecutively. - View Dependent Claims (7)
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8. An apparatus for recording/reproducing audio and video signals, said apparatus comprising:
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a receiver which receives said audio and video signals; a recording/reproducing device which records received audio and video signals in a recording medium, and reproduces said audio and video signals from the recording medium; and a controller which, during reproduction of said audio and video signals from the recording medium, controls said recording/reproducing device to skip over portions of said medium wherein a time interval between one pair of changing points of said audio and video signals or a sum of adjacent time intervals between two or more pairs of the changing points corresponds to a predetermined time interval, and the predetermined time intervals occur at least two times consecutively. - View Dependent Claims (9)
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10. An apparatus for recording/reproducing program material including commercial message portions on a tape, comprising:
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a recording/reproducing device which records said program material and tape position information indicative of a tape position on oblique tracks of the tape, and reproduces said program material and said tape position information from said oblique tracks; a control pulse read/write device which writes pulse signals at a constant interval on a control track of the tape, and reads said pulse signals from said control track; a detector which detects said commercial message portions; a memory which stores commercial position information indicative of a position of the commercial message portions on the tape; and a controller which controls said recording/reproducing device to start a skip reproduction of commercial message portions at a tape speed which is higher than a normal reproduction speed, based on said commercial position information read out from said memory and said tape position information reproduced from said oblique tracks, and to stop said skip in accordance with a number of pulse signals read out from said control track. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification