Automatic checking device for preset recording program of recording and reproducing apparatus
First Claim
1. An apparatus operative for recording and reproducing signals at a plurality of selectable variable length times on a record medium which has a finite capacity for recorded signals comprising:
- means for pedetermining times at which each variable length time of recording is to be initiated and terminated, respectively, means for providing a first signal representative of the capacity of the record medium which is available for the recording of signals thereon, means for providing a second signal representative of an aggregate capacity of the record medium needed for the recording of signals thereon in the total of said variable length times initiated and terminated at said predetermined times, comparator means for comparing said first and second signals, and indicator means responsive to said comparator means for indicating when said aggregate capacity needed for recording as represented by said second signal is greater than said capacity available for recording as represented by said first signal.
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Accused Products
Abstract
In a recording and reproducing apparatus, such as, a video tape recorder or VTR, which can be preset to establish a desired recording program, that is, to initiate and terminate successive recording intervals at predetermined times, the aggregate of the tape or other record medium needed for the recording of signals thereon in the preset recording intervals is compared with the amount or capacity of record medium available for recording and, in the event of a deficiency of the latter, a suitable alarm or indication is provided to avoid a failure to record desired signals. An alarm or indication is further provided if there is overlapping of the preset recording intervals, or if the apparatus is not in condition for recording, for example, by reason of the absence of a tape cassette or other record medium from the apparatus or the presence of a record medium which is already recorded with signals to be preserved.
87 Citations
14 Claims
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1. An apparatus operative for recording and reproducing signals at a plurality of selectable variable length times on a record medium which has a finite capacity for recorded signals comprising:
- means for pedetermining times at which each variable length time of recording is to be initiated and terminated, respectively, means for providing a first signal representative of the capacity of the record medium which is available for the recording of signals thereon, means for providing a second signal representative of an aggregate capacity of the record medium needed for the recording of signals thereon in the total of said variable length times initiated and terminated at said predetermined times, comparator means for comparing said first and second signals, and indicator means responsive to said comparator means for indicating when said aggregate capacity needed for recording as represented by said second signal is greater than said capacity available for recording as represented by said first signal.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus operative for recording and reproducing signals at a plurality of selectable variable length times on a record medium which has a finite capacity for recorded signals and which is movable at a selected one of a plurality of different speeds, comprising:
- means for predetermining times at which each variable length time of recording is to be initiated and terminated, memory means, means for writing said times in said memory means, timer means for indicating actual time, means responsive to coincidence of said times written in the memory means with said actual time to cause the initiation and termination of a recording operation by the apparatus, means for detecting any overlap of the times of initiation and termination written in said memory means, indicator means responsive to said detecting means for indicating when said overlap exists, means for writing a television channel in said memory means corresponding to each of said times written in said memory means, means for controlling a television tuner in dependence on the television channel written in said memory means, means for providing a first signal representative of the capacity of the record medium which is available for the recording of signals thereon, said means for providing a first signal including means for detecting a ratio of recorded to unrecorded regions on said record medium, means for detecting the size of said record medium, means for detecting the selected speed, converting means responsive to the detected ratio of the recorded to unrecorded regions, the detected size of the record medium and the detected speed to produce said first signal as a function thereof, means for providing a second signal representative of an aggregate capacity of the record medium needed for the recording of signals thereon in the total of said variable length times initiated and terminated at said predetermined times, comparator means for comparing said first and second signals, indicator means responsive to said comparator means for indicating when said aggregate capacity needed for recording as represented by said second signal is greater than said capacity available for recording as represented by said first signal, and means for indicating when recording is not possible.
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13. An apparatus operative for recording and reproducing signals at a plurality of selectable variable length times on a recording medium which has a finite capacity for recorded signals comprising:
- means for predetermining times at which each variable length time of recording is to be initiated and terminated, respectively, first means for indicating the capacity of the record medium which is available for the recording of signals thereon, second means for indicating an aggregate capacity of the record medium needed for the recording of signals thereon in the total of said variable length times initiated and terminated at said predetermined times, comparator means for comparing indications from said first and second means, and third means responsive to said comparator means for indicating when said aggregate capacity needed for recording is greater than said capacity available for recording.
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14. An indicating apparatus for use with a recording apparatus of the type operative for recording signals at a plurality of selectable variable length times on a recording medium, said recording medium having a finite capacity for recorded signals, comprising:
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first means for determining said finite capacity; second means for determining an aggregate capacity of said record medium needed for recording signals at the total of said plurality of selectable variable length times; and third means, responsive to a comparison of determinations of said first and second means, for indicating when said aggregate capacity exceeds said finite capacity.
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Specification