Patent US6629088B1 successfully refreshed from Google Patents.
Patent EP0558306A2 successfully refreshed from Google Patents.
EP0558306A2
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EP
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Recording and reproducing apparatus
Assignee: Mitsubishi Electric Corp
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Filing: 1993-02-24
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Granted: —
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Expires: 2013-02-24
Abstract
Abstract In program retrieval using a magnetic tape in which programs are classified by index signals recorded on the tape, an image at the beginning of each program is displayed in a list on a multi-screen, and a desired program is directly selected using a count value of index signals. In recording, an index signal is recorded at a starting point of recording. When preparing a multi-screen at the time of reproducing, an image reproduced a predetermined time after detection of an index signal is reduced and stored in a memory. <IMAGE>
Inventors
- 👤 Taketoshi c/o MITSUBISHI DENKI K.K. Hibi
- 👤 Kenji c/o MITSUBISHI DENKI K.K. Maeno
- 👤 Kihei c/o Mitsubishi Denki K.K. Ido
- 👤 Ken C/O Mitsubishi Denki K.K. Onishi
- 👤 Shinobu c/o MITSUBISHI DENKI K.K. Ueda
- 👤 Akiyoshi c/o MITSUBISHI DENKI K.K. Hirano
- 👤 Keiji c/o MITSUBISHI DENKI K.K. Hatanaka
- 👤 Takashi c/o MITSUBISHI DENKI K.K. Shiroshita
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 14:56
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/19; G11B27/28; G11B27/102; G11B27/107; G11B27/11; G11B27/32; G11B27/322; G11B27/324; G11B27/326; G11B27/327; G11B27/328; G11B27/34; H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/92; H04N5/9201; H04N5/9206; H04N5/9208; H04N5/926; H04N5/9265; H04N5/9267; H04N5/9268; G11B2220/00; G11B2220/40; G11B2220/41; G11B2220/60; G11B2220/65; G11B2220/90; G11B2220/91
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
61 words
A recording and reproducing apparatus comprising: means for recording video data and audio data or a recording medium in a first format, using digital signals; and means for recording data on the recording medium with digital signals, changing from the first format to a second format that differs from the first format in the proportion of audio data to video data.
Claim 2
Dependent Claim
46 words
A recording and reproducing apparatus according to Claim 1, wherein in the second format, video data corresponding to one field or one frame of a video signal and audio data corresponding to an audio signal of a specified length of time are recorded as one program.
Claim 3
Dependent Claim
39 words
A recording and reproducing apparatus according to Claim 1, wherein data such as symbols and characters which are related to a program recorded in the first format are added to the data to be recorded in the second format.
Claim 4
Dependent Claim
39 words
A recording and reproducing apparatus according to Claim 1, wherein the video data and audio data of a program recorded in the first format are used as video data and audio data to be recorded in the second format.
Claim 5
Dependent Claim
144 words
A recording and reproducing apparatus for recording a plurality of programs on a magnetic tape, comprising: recording means for recording an index signal whose duty ratio is obtained by changing the duty ratio of a control signal in the beginning of each program; means for identifying the location of each recorded program from a reference position on the tape; means for reducing the size of one screen taken from the beginning of each program and displaying the reduced screens in a list on a multi-screen which is one screen divided into several regions; means for selecting one of the programs displayed on the multi-screen; means for identifying the location of the reference position; and means for counting index signals, wherein the program which has been selected from the programs displayed on the multi-screen is automatically retrieved by counting index signals from the reference position.
Claim 6
Dependent Claim
39 words
A recording and reproducing apparatus according to Claim 5, further comprising: means for determining whether the tape runs in a forward direction or backward direction, wherein the location of a presently accessed program from the reference position is identified.
Claim 7
Dependent Claim
174 words
A recording and reproducing apparatus for recording a plurality of programs on a magnetic tape, comprising: display means for displaying a recording time and reproducing time by counting control signals of the beginning of each program; recording means for recording an index signal in the beginning of each program; means for storing a linear time counter value for the beginning of each program, the value being obtained by counting from a reference position on a tape; means for reducing the size of one screen taken from the beginning of each program and displaying the reduced screens in a list on a multi-screen which is one screen divided into several regions; means for selecting one of the programs displayed on the multi-screen; and means for identifying the location of the reference position, wherein the program which has been selected from the programs displayed on the multi-screen is automatically retrieved using a linear time counter value obtained by counting from the reference position and the stored linear time counter value for the beginning of each program.
Claim 8
Dependent Claim
198 words
A recording and reproducing apparatus for recording a plurality of programs on a magnetic tape, comprising: display means for displaying a recording time and reproducing time by counting control signals of the beginning of each program; recording means for recording an index signal in the beginning of each program; means for storing a linear time counter value for the beginning of each program, the value being obtained by counting from a reference position on a tape; means for reducing the size of one screen taken from the beginning of each program and displaying the reduced screens in a list on a multi-screen which is one screen divided into several regions; means for selecting one of the programs displayed on the multi-screen; and means for identifying the location of the reference position, wherein the program which has been selected from the programs displayed on the multi-screen is retrieved up to the vicinity of the beginning part thereof, using a linear time counter value obtained by counting from the reference position and the stored linear time counter value for the beginning of each program, and thereafter, an index signal of the selected program is detected, whereby retrieval is automatically performed.
Claim 9
Dependent Claim
98 words
A recording and reproducing apparatus provided with a timer function and a function for recording and reproducing index signals, comprising: a memory for storing one field or one frame of video data; memory control means for thinning the video data and writing them in a part of said memory, thereby preparing a multi-screen containing a plurality of video data items; and control means for performing a running continuously for a predetermined time after detection of the index signal at the time of reproducing operation or high-speed running, and then reproducing the video data to store in said memory.
Claim 10
Dependent Claim
40 words
A recording and reproducing apparatus according to Claim 9, wherein a timer recording function is provided and a power source is turned off after said memory control means and said control means have been operated after completion of timer recording.
Claim 11
Dependent Claim
98 words
A recording and reproducing apparatus provided with a timer function, a timer recording function, and a function for recording and reproducing index signals, comprising: a memory for storing one field or one frame of video data; memory control means for thinning the video data and writing them in a part of said memory, thereby preparing a multi-screen containing a plurality of video data items; and control means for automatically performing recording of an index signal and/or storing of a video signal in said memory, when the audio mode of a program is switched to a specified audio mode.
Claim 12
Dependent Claim
25 words
A recording and reproducing apparatus according to Claim 11, wherein the specified mode is any one of a stereo mode, monophonic mode and bilingual mode.
Claim 13
Dependent Claim
33 words
A recording and reproducing apparatus according to Claim 11, wherein a power source is turned off after said memory control means and said control means have been operated after completion of timer recording.
Claim 14
Dependent Claim
113 words
A recording and reproducing apparatus provided with a function for recording and reproducing index signals, comprising: a memory for storing one field or one frame of video data; memory control means for thinning the video data and writing them in a part of said memory, thereby preparing a multi-screen containing a plurality of video data items; correlation detecting means for obtaining a correlation between images from the data stored in said memory and the data of a video signal to be recorded or reproduced; and control means for performing recording or an index signal and/or storing of the video signal in said memory when the correlation is not more than a specified value.
Claim 15
Dependent Claim
44 words
A recording and reproducing apparatus according to Claim 14, wherein a timer recording function is provided and a power source is turned off after said memory control means, said correlation detecting means and said control means have been operated after completion of timer recording.
Claim 16
Dependent Claim
119 words
A recording and reproducing apparatus provided with a timer function, a timer recording function and a function for recording and reproducing index signals, comprising: a memory for storing one field or one frame of video data; memory control means for thinning the video data and writing them in a part of said memory, thereby preparing a multi-screen containing a plurality of video data items; and control means for performing recording of an index signal and/or storing of a video signal in said memory each time a specified time elapses, the specified time being obtained by dividing the time required for timer recording by a number which is not more than the number of small screens contained in the multi-screen.
Claim 17
Dependent Claim
33 words
A recording and reproducing apparatus according to Claim 16, wherein a power source is turned off after said memory control means and said control means have been operated after completion of timer recording.
Claim 18
Dependent Claim
119 words
A recording and reproducing apparatus provided with a timer function and a function for recording and reproducing index signals, comprising: a memory for storing one field or one frame of video data; memory control means for thinning the video data and writing them in a part of said memory, thereby preparing a multi-screen containing a plurality of video data items; and control means for performing recording of an index signal and/or storing of a video signal in said memory each time a specified time elapses, the specified time being obtained by dividing the recording time of a program which has been already recorded, by a number which is not more than the number of screens contained in the multi-screen.
Claim 19
Dependent Claim
40 words
A recording and reproducing apparatus according to Claim 18, wherein a timer recording function is provided and a power source is turned off after said memory control means and said control means have been operated after completion of timer recording.
Claim 20
Dependent Claim
122 words
A recording and reproducing apparatus provided with a timer function, a timer recording function and a function for recording and reproducing index signals, comprising: a memory for storing one field or one frame of video data; memory control means for thinning the video data and writing them in a part of said memory, thereby preparing a multi-screen containing a plurality of video data items; and control means for setting the number of small screens on the multi-screen to be no less than a value which is obtained by subtracting a specified time value from the time required for timer recording, and performing recording of an index signal and/or storing of a video signal in said memory each time the specified time elapses.
Claim 21
Dependent Claim
33 words
A recording and reproducing apparatus according to Claim 20, wherein a power source is turned off after said memory control means and said control means have been operated after completion of timer recording.
Claim 22
Dependent Claim
123 words
A recording and reproducing apparatus provided with a timer function and a function for recording and reproducing index signals, comprising: a memory for storing one field or one frame of video data; memory control means for thinning the video data and writing them in a part of said memory, thereby preparing a multi-screen containing a plurality of video data items; and control means for setting the number of small screens on the multi-screen to be no less than a value which is obtained by subtracting a specified time value from the recording time of a program which has been already recorded, and performing recording of an index signal and/or storing of a video signal in said memory each time the specified time elapses.
Claim 23
Dependent Claim
40 words
A recording and reproducing apparatus according to Claims 22, wherein a timer recording function is provided and a power source is turned off after said memory control means and said control means have been operated after completion of timer recording.
Claim 24
Dependent Claim
68 words
A recording and reproducing apparatus comprising: means for recording and reproducing video signals; means for recording and reproducing index signals; means for generating and displaying characters to be superimposed on a video signal; and control means for performing, based on the positional data of the characters on a screen, the characters being superimposed on a video signal, a specified operation on the recording position of the video signal.
Claim 25
Dependent Claim
83 words
A recording and reproducing apparatus comprising: means for recording and reproducing video signals; means for recording and reproducing index signals; means for generating and displaying characters to be superimposed on a video signal; means for preparing a multi-screen; and control means for performing, based on the positional data of the characters on a screen, the characters being superimposed on a video signal to be reproduced on a small screen of a multi-screen, a specified operation on the recording position of the video signal.
Claim 26
Dependent Claim
76 words
A recording and/or reproducing apparatus for cooperation with a magnetic tape capable of storing a number of programs, comprising means for generating a split-screen display comprising a plurality of video pictures corresponding to said programs, and means for accessing a said one of said programs, characterised in that said accessing means is arranged to identify the location of a reference position, and to count from the reference position to the beginning of a selected said program.
Claim 27
Dependent Claim
64 words
A recording and/or reproducing apparatus for cooperation with a magnetic tape capable of storing a plurality of programs, comprising accessing means for accessing a selected program on said tape, characterised in that said accessing means is arranged to traverse said tape to the vicinity of the beginning of said selected program and thereafter to detect an index signal for precise location of said program.
Claim 28
Dependent Claim
66 words
A recording and/or reproducing apparatus for cooperation with a video storage medium capable of storing a plurality of programs, comprising means for generating a split screen display comprising a plurality of video images each corresponding to one of said programs, characterised by automatic image selection means for locating, within each recording of a program, a characteristic image to form part of the said split screen display.
Claim 29
Dependent Claim
33 words
Apparatus according to claim 28 in which said selection means is arranged to select an image at a predetermined time on said tape after the beginning of the recording of a corresponding program.
Claim 30
Dependent Claim
35 words
Apparatus according to claim 28 in which the selection means is arranged to select an image in response to a change of recording mode (e.g. audio recording mode) within a recording of a said program.
Claim 31
Dependent Claim
37 words
Apparatus according to claim 28 in which the selection means is arranged to select an image in response to a low correlation or high amount of change between successive images within a recording of a said program.
Claim 32
Dependent Claim
50 words
A video recording and/or reproducing apparatus for cooperation with a magnetic tape capable of storing a plurality of programs, comprising means for generating a split screen display comprising a plurality of images, characterised by automatic image selection means, arranged to select said images to be spaced by predetermined time intervals.
Claim 33
Dependent Claim
36 words
A recording and/or reproducing apparatus provided with a timer function and a function for recording and reproducing index signals, characterised in that index signal data is recorded while said timer function is in an idle mode.
References Cited (Backward Citations)
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