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| Apparatus for receiving wide/standard picture plane television signal |
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| Wide screen television |
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| Three-LCD projector having specified scanning directions |
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| Method and apparatus for recording and reproducing a video-disc with an oscillated track |
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| Color image enlarging ink jet printer |
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Data recording apparatus
| Details |
Inventors: Kashida, Motokazu; Takei, Masahiro; Takahashi, Kouji; Masui, Toshiyuki; Fukatsu, Tsutomu; Nagasawa, Kenichi;
Assignee: Canon Kabushiki Kaisha (Tokyo, JP)
Primary Examiner: Canney; Vincent P.
Assistant Examiner:
Attorney, Agent or Firm: Toren, McGeady & Associates
In an apparatus for recording a data sequence including main binary data of an (m X n) number of bits formed by sampling a main information signal and a plurality of subordinate binary data of also an (m X n) number of bits respectively carrying additional information of varied kinds, recording tracks are formed one after another with data which includes the main binary data representing the main information signal sampled within a given period of time and the plurality of subordinate binary data recorded in each of the tracks; and recording is performed in such a manner that, among the plurality of subordinate binary data, the meaning of information carried by a second n number of bits varies according as the condition of the data varies between a case where l-adic numerical data is arranged to be formed by a first n number of bits within the plurality of subordinate binary data and another case where irregular data is formed there as the l-adic numerical data cannot be formed by the first n number of bits (n and m being integers, respectively, and l being an integer not exceeding 2.sup.n). |
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DETAILED DESCRIPTION It is an object of the present invention to provide a data recording apparatus which can solve the above mentioned problems.
Another object of the present invention is to increase an amount of additional information included in subordinate data which are to be recorded together with main data, obtained by sampling main information signal, without increasing an amount of data of the subordinate data.
Further, another object of the present invention is to provide a recording apparatus which can record additional information in such manner that the kind of the additional information can be easily distinguished at a time of a reproduction at any travelling speed of a recording medium without increasing an amount of data, when an amount of this additional information is increased and a recording thereof is made.
These objects achieved in a data recording apparatus, according to the subject invention as an embodiment thereof comprising: means for forming, by sampling a main information signal, main binary data consisting of an n number of bits, n being an integer; means for forming a plurality of subordinate binary data of an n number of bits representing additional information of different kinds respectively, one of said plural subordinate binary data being mode number data which is arranged to determine the meaning of the additional information carried by other subordinate binary data; means for recording said main binary data and said plurality of subordinate data, said recording means forming recording tracks having a first magnetizing direction alternately tracks having a second magnetizing direction which differs from said first magnetizing direction; and means for forming a data sequence including said main binary data and said plurality of subordinate data to supply said data sequence to said recording means with a timing so that said main binary data sampled during a predetermined period of time and said plurality of subordinate binary data and said plurality of subordinate binary data are recorded on the one track by said recording means, and all of said mode number data recorded in the tracks of said first magnetizing direction are first data, while at least some of said mode number data recorded in said recording tracks of said second magnetizing direction are second data which differs from said first data
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TV Signal 
